LE25S161XBTAG [ONSEMI]
串行闪存,16 Mb (2048K x 8);型号: | LE25S161XBTAG |
厂家: | ONSEMI |
描述: | 串行闪存,16 Mb (2048K x 8) 闪存 |
文件: | 总40页 (文件大小:355K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
DATA SHEET
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Serial Flash Memory
16 Mb (2048K x 8)
8
8
1
1
VSOIC8 NB
CASE 753AA
SOIC 8
CASE 751BD
LE25S161
Overview
The LE25S161 is a SPI bus flash memory device with a 16 Mbit
(2048K x 8−bit) configuration. It uses a single power supply. While
making the most of the features inherent to a serial flash memory
device, the LE25S161 is housed in an 8−pin ultra−miniature package.
All these features make this device ideally suited to storing program in
applications such as portable information devices, which are required
to have increasingly more compact dimensions.
1
UDFN8
CASE 506DC
WLCSP8
CASE 567YR
MARKING DIAGRAM
The LE25S161 also has a small sector erase capability which makes
the device ideal for storing parameters or data that have fewer rewrite
cycles and conventional EEPROMs cannot handle due to insufficient
capacity.
5S161
00
ALYW
5S16100 = Specific Device Code
Features
A
L
Y
W
= Assembly Site
= Wafer Lot Number
= Year of Production
= Work Week
• Operations Power Supply: 1.65 to 1.95 V Supply Voltage Range
• Operating Frequency: 70 MHz (Max)
• Temperature Range: –40 to +90°C
• Serial Interface: SPI Mode 0, Mode 3 Supported
ORDERING INFORMATION
• Electronic Identification: JDEC ID, Device ID, Serial Flash
†
Device
Package
Shipping
Discoverable Parameter (SFDP)
• Sector Size: 4 kbytes/Small Sector, 64 kbytes/Sector
• Erase Functions: Small Sector Erase (SSE), Sector Erase (SE),
Chip Erase (CHE)
LE25S161FDTWG
VSOIC8 NB
(Pb−Free /
Halide Free)
3000 /
Tape & Reel
LE25S161MDTWG
LE25S161PCTXG
LE25S161XBTAG
SOIC8
(Pb−Free /
Halide Free)
2000 /
Tape & Reel
• Page Program Function: 256 bytes/Page
• Status Functions: Ready/Busy Information, Protect Information
UDFN8
(Pb−Free /
Halide Free)
2000 /
Tape & Reel
• Low Operation Current: 5.0 mA (Low−power Program Mode, Typ),
3.5 mA (Low−Power Read Mode, Typ)
• Erase Time: 10 ms (SSE, Typ), 15 ms (SE, Typ),
210 ms (CHE, Typ)
• Page Program Time (tPP): 0.4 ms/256 bytes (Typ.),
0.7 ms/256 bytes (Max.)
• Emergency Shutdown of the Current Consumption:
Transition to a Standby State in Less than 20 ms from the
Active by Write Suspend
WLCSP8
(Pb−Free /
Halide Free)
4000 /
Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
Transition to a Standby State in Less than 40 ms from the
Active by Software Reset
• High Reliability: 100,000 Erase/Program Cycles
20 Years Data Retention Period
• Package:
LE25S161FDTWG VSOIC8 NB, CASE 753AA
LE25S161MDTWG SOIC 8, 150 mils, CASE 751BD
LE25S161PCTXG UDFN8 4 x 3, 0.8P, CASE 506DC
LE25S161XBTAG WLCSP8, 2.92 x 1.53, CASE 567YR
KGD
*This product is licensed from Silicon Storage Technology, Inc. (USA).
© Semiconductor Components Industries, LLC, 2016
1
Publication Order Number:
February, 2022 − Rev. 2
LE25S161/D
LE25S161
PACKAGE TYPES AND PIN CONFIGURATIONS
(Top View)
(Top View)
CS
1
8
V
DD
CS
1
8
V
DD
SO (SIO1)
WP
2
3
4
7
6
5
HOLD
SCK
SO (SIO1)
WP
2
3
4
7
6
5
HOLD
SCK
V
SS
SI (SIO0)
V
SS
SI (SIO0)
Figure 1. SOIC8 (LE25S161MDTWG) and
VSOIC8 NB (LE25S161FDTWG)
Figure 2. UDFN8 (LE25S161PCTXG)
(Top View)
(Ball Side View)
A
B
VDD
HOLD
SCK
CS
SO/SIO1
WP
VDD
A
B
CS
SO/
SIO1
HOLD
WP
SCK
C
D
C
D
SI/
SIO0
VSS
SI/SIO0
1
VSS
2
2
1
Figure 3. WLCSP8 (LE25S161XBTAG)
Table 1. PIN CONFIGURATION
Pad No.
Name
CS
A2
B2
C2
D2
D1
C1
B1
A1
SO (SIO1)
WP
V
SS
SI (SIO0)
SCK
HOLD
V
DD
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2
LE25S161
4
3
2
1
5
6
7
8
Figure 4. KGD
Table 2. PIN CONFIGURATION
Pad No.
Name
CS
1
2
3
4
5
6
7
8
SO (SIO1)
WP
V
SS
SI (SIO0)
SCK
HOLD
V
DD
PIN DESCRIPTION
Table 3. PIN DESCRIPTION
Symbol
Pin Name
IIO
Description
CS
Chip Select
I
The device becomes active when the logic level of this pin is low; it is deselected
and placed in standby status when the logic level of the pin is high.
SCK
Serial Clock
I
This pin controls the data input/output timing.
The input data and addresses are latched synchronized to the rising edge of the
serial clock, and the data is output synchronized to the falling edge of the serial
clock.
SI
Serial Data Input
I/O
I/O
The data and addresses are input from this pin, and latched internally synchronized
to the rising edge of the serial clock.
(SIO0)
(Serial Data Input Output)
(It changes into input/output pin during the Dual operation.)
SO
(SIO1)
Serial Data Output
(Serial Data Input Output)
The data stored inside the device is output from this pin synchronized to the falling
edge of the serial clock.
(It changes into input/output pin during the Dual operation.)
WP
Write Protect
I
I
The Write Status Register Protect (SRWP) takes effect when the logic level of this
pin is low.
HOLD
Hold
Serial communication is suspended when the logic level of this pin is low.
This pin supplies the 1.65 to 1.95 V supply voltage.
This pin supplies the 0 V supply voltage.
V
DD
Power Supply
Ground
V
SS
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3
LE25S161
BLOCK DIAGRAM
16 MBit
Flash EEPROM
Cell Array
Energy−
consumption
Control Unit
Power
Circuit
Memory Control Logic
Decoder Logic
Command
Logic
&
Serial−parallel Conversion Logic
Serial Interface
SI
(SIO0)
SO
(SIO1)
SCK
CS
WP
HOLD
Figure 5. Block Diagram
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4
LE25S161
DEVICE OPERATION
Standard SPI Modes
taken into the device interior in synchronization with the
rising edge of SCK, which causes the device to execute
operation according to the command that is input.
The LE25S161 supports both serial interface SPI mode 0
and SPI mode 3. At the falling CS edge, SPI mode 0 is
automatically selected if the logic level of SCK is low, and
SPI mode 3 is automatically selected if the logic level of
SCK is high.
The read, erase, program and other required functions of
the device are executed through the command registers. The
serial I/O corrugate is shown in “Figure 6. SPI Modes” and
the command list are shown in “Table 5. Command Settings
(Standard SPI)”. At the falling CS edge the device is
selected, and serial input is enabled for the commands,
addresses, etc. These inputs are normalized in 8 bit units and
CS
Mode3
SCK
Mode0
8CLK
1st byte
SI
Nth byte
2nd byte
LSB
(Bit0)
MSB
(Bit7)
High Impedance
DATA
DATA
SO
Figure 6. SPI Modes
Dual SPI Modes
Table 4. PIN CONFIGURATIONS AT DUAL SPI MODE
The LE25S161 supports Dual SPI operations when using
“Dual Output Read (RDDO: 3Bh)”, “Dual I/O Read (RDIO:
BBh)”. The SI and SO pins change into the input/output pin
(SIOx) during the Dual SPI modes. The command list is
shown in “Table 6. Command Settings (Dual SPI)”.
Standard SPI
Dual SPI
SIO0
SI
→
→
SO
SIO1
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5
LE25S161
Table 5. COMMAND SETTINGS (STANDARD SPI) − MAX: 70 MHz (EXCEPT RDLP)
st
nd
rd
th
th
th
th
Description
1
Byte
2
Byte
3
Byte
4
Byte
5
Byte
6
Byte
N
Byte
(Clock Number)
(0−7)
06h
04h
05h
01h
03h
(8−15)
(16−23)
(24−31)
(32−39)
(40−47)
(8N−8 to 8N−1)
Command
WREN
WRDI
Write Enable
Write Disable
RDSR
Read Status Register
Write Status Register
WRSR
RDLP
DATA
Low−Power Read
(Max: 33.33 MHz)
A23−A16
A15−A8
A15−A8
A7−A0
A7−A0
RD
(Note 5)
RD
(Note 5)
RD (Note 5)
RD (Note 5)
RDHS
High−Speed Read
0Bh
A23−A16
X
RD
(Note 5)
SSE
SE
Small Sector Erase (4 kB)
Sector Erase (64 kB)
Chip Erase (16 Mbits)
Normal Page Program
Low−Power Page Program
Write Suspend
20h / D7h
D8h
A23−A16
A23−A16
A15−A8
A15−A8
A7−A0
A7−A0
CHE
PP
60h / C7h
02h
A23−A16
A15−A8
A7−A0
PD
(Note 6)
PD
(Note 6)
PD (Note 6)
PPL
0Ah
WSUS
RESM
RJID
B0h
Resume
30h
Manufacture
(62h)
Read JEDEC ID
9Fh
Memory
Type
(16h)
Capacity
(15h)
RID
Read Device ID
ABh
5Ah
X
X
X
Device ID
(88h)
(Exit power down mode)
RSFDP
Read SFDP
A23−A16
A15−A8
A7−A0
X
RD
(Note 5)
RD (Note 5)
DP
Deep Power Down
B9h
ABh
EDP
Exit Deep
Power Down
RSTEN
RST
Reset Enable
Reset
66h
99h
1. “X” signifies “don’t care” (that is to say, any value may be input).
2. “Z” signifies “high−impedance”.
3. The “h” following each code indicates that the number given is in hexadecimal notation.
4. Addresses A23 to A21 for all commands are “Don’t care”.
5. “RD” Read data on SO.
6. “PD” Page Program data on SO.
Table 6. COMMAND SETTINGS (DUAL SPI) − MAX: 50 MHz
st
nd
rd
th
th
th
th
Description
(Clock Number)
1
Byte
2
Byte
(8−15)
3
Byte
4
Byte
5
Byte
6
Byte
N
Byte
(0−7)
(16−23)
(24−31)
(32−39)
(40−47)
(8N−8 to 8N−1)
Command
RDDO
Dual Output Read
3Bh
A23−A16
A15−A8
A7−A0
Z
RDD
(Note 11)
RDD (Note 11)
RDIO
Dual I/O Read
BBh
A23−A8
A7−A0
RDD
RDD
(Note 11)
RDD
(Note 11)
RDD (Note 11)
(Note 12) (Note 12), (Note 11)
X, Z
7. “X” signifies “don’t care” (that is to say, any value may be input).
8. “Z” signifies “high−impedance”.
9. The “h” following each code indicates that the number given is in hexadecimal notation.
10.Addresses A23 to A21 for all commands are “Don’t care”.
11. “RDD” Dual Read data:
SIO0 = (Bit6, Bit4, Bit2, Bit0)
SIO1 = (Bit7, Bit5, Bit3, Bit1)
12.Dual SPI address input from SIO0 and SIO1:
SIO0 = (A22, A20, A18, A16, A14, A12, A10, A8, A6, A4, A2, A0)
SIO1 = (A23, A21, A19, A17, A15, A13, A11, A9, A7, A5, A3, A1)
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6
LE25S161
MEMORY ORGANIZATION
Table 7. MEMORY ORGANIZATION (16 Mbits)
Sector (64 kB)
Symbol: SE
Small Sector (4 kB)
Symbol: SSE
Address Space (A23 to A0)
31
SSE[511]
to
1FF000h
1FFFFFh
SSE[496]
SSE[495]
to
1F0000h
1EF000h
1F0FFFh
1EFFFFh
30 to 6
SSE[96]
SSE[95]
to
060000h
05F000h
060FFFh
05FFFFh
5
4
3
2
1
0
SSE[80]
SSE[79]
to
050000h
04F000h
050FFFh
04FFFFh
SSE[64]
SSE[63]
to
040000h
03F000h
040FFFh
03FFFFh
SSE[48]
SSE[47]
to
030000h
02F000h
030FFFh
02FFFFh
SSE[32]
SSE[31]
to
020000h
01F000h
020FFFh
01FFFFh
SSE[16]
SSE[15]
to
010000h
00F000h
010FFFh
00FFFFh
SSE[4]
SSE[3]
004000h
003800h
003000h
002800h
002000h
001800h
001000h
000800h
000000h
004FFFh
003FFFh
0037FFh
002FFFh
0027FFh
001FFFh
0017FFh
000FFFh
0007FFh
SSE[2]
SSE[1]
SSE[0]
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7
LE25S161
STATUS REGISTERS
The status registers hold the operating and setting statuses
inside the device, and this information can be read by Read
Status Register (RDSR) and the protect information can be
rewritten by Write Status Register (WRSR). There are 8 bits
in total, and “Table 8. Status registers” gives the significance
of each bit.
Table 8. STATUS REGISTERS
Bit
Name
Logic
Function
Ready
Power−on Time Information
Bit0
RDY
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
3
Erase/Program
Write disabled
Write enabled
Bit1
Bit2
Bit3
Bit4
Bit5
Bit6
Bit7
WEN
BP0
0
Block protect information
Protected area switch
Nonvolatile information
BP1
BP2
TB
Block protect
Upper side/Lower side switch
Nonvolatile information
SUS
SRWP
Erase/Program is not suspended
Erase/Program suspended
0
Write Status Register enabled
Write Status Register disabled
Nonvolatile information
13.All non−volatile bits of the status registers−1 are set “0” in the factory.
Contents of Each Status Register
• Upon completion of Page Program (PP or PPL)
RDY (Bit 0)
• Upon completion of Write Status Register (WRSR)
The RDY register is for detecting the write (Program,
Erase and Write Status Register) end. When it is “1”, the
device is in a busy state, and when it is “0”, it means that
write is completed.
*If a write operation has not been performed inside the
LE25S161 because, for instance, the command input for
any of the write operations (SSE, SE, CHE, PP, PPL or
WRSR) has failed or a write operation has been performed
for a protected address, WEN will retain the status
established prior to the issue of the command concerned.
Furthermore, its state will not be changed by a read
operation.
WEN (Bit 1)
The WEN register is for detecting whether the device can
perform write operations. If it is set to “0”, the device will
not perform the write operation even if the write command
is input. If it is set to “1”, the device can perform write
operations in any area that is not block−protected.
WEN can be controlled using the write enable (WREN)
and write disable (WRDI). By inputting the write enable
(WREN: 06h), WEN can be set to “1” by inputting the write
disable (WRDI: 04h), it can be set to “0.” In the following
states, WEN is automatically set to “0” in order to protect
against unintentional writing.
BP0, BP1, BP2, TB (Bits 2, 3, 4, 5)
Block Protect: BP0, BP1, BP2 and TB are status register
bits that can be rewritten, and the memory space to be
protected can be set depending on these bits. For the setting
conditions, refer to “Table 9. Protected Level Setting
Conditions”.
BP0, BP1, and BP2 are used to select the protected area
and TB to allocate the protected area to the higher−order
address area or lower−order address area.
• At power−on
• Upon completion of Erase (SSE, SE, or CHE)
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8
LE25S161
Table 9. PROTECTION LEVEL SETTING CONDITIONS
Status Register Bits
Protected
Level
TB
X
0
BP2
0
BP1
0
BP0
0
Protected Block
Protected Area
None
0
Whole area unprotected
Upper side 1/32 protected
Upper side 1/16 protected
Upper side 1/8 protected
Upper side 1/4 protected
Upper side 1/2 protected
Lower side 1/32 protected
Lower side 1/16 protected
Lower side 1/8 protected
Lower side 1/4 protected
Lower side 1/2 protected
Whole area protected
T1
T2
T3
T4
T5
B1
B2
B3
B4
B5
6
0
0
1
1F0000h to 1FFFFFh
1E0000h to 1FFFFFh
1C0000h to 1FFFFFh
180000h to 1FFFFFh
100000h to 1FFFFFh
000000h to 00FFFFh
000000h to 01FFFFh
000000h to 03FFFFh
000000h to 07FFFFh
000000h to 0FFFFFh
000000h to 1FFFFFh
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
X
1
1
X
14.Chip Erase is enabled only when the protection level is 0.
SUS (Bit 6)
are protected. When the logic level of the WP pin is high, the
status registers are not protected regardless of the SRWP
state. The SRWP setting conditions are shown in “Table 10.
SRWP Setting Conditions”.
The SUS register indicates when Erase/Program
operation has been suspended. The SUS becomes “1” when
the Erase/Program operation has been suspended (WSUS:
B0h). The SUS is cleared to “0” by Resume (RESM: 30h)
or re−erase/program (SSE, SE, CHE, PP, PPL).
Table 10. SRWP SETTING CONDITIONS
SRWP (Bit 7)
WP Pin
SRWP
Status Register Protect State
Unprotected
Write Status Register protect SRWP is the bit for
protecting the status registers, and its information can be
rewritten. When SRWP is “1” and the logic level of the WP
pin is low, the Write Status Register (WRSR: 01h) is
ignored, and status registers BP0, BP1, BP2, TB and SRWP
0
0
1
0
1
Protected
1
Unprotected
Unprotected
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9
LE25S161
DESCRIPTION OF COMMANDS AND OPERATIONS
A detailed description of the functions and operations
corresponding to each command is presented below.
→ Status Register data (SRWP, SUS, TB, BP2, BP1,
BP0,WEN, RDY) out on SO →→
→ completed by CS = high
*The data output starts from the falling edge of SCK (7th
clock)
Read Status Register (RDSR)
The contents of the status registers can be read using the
Read Status Register (RDSR). This command can be
executed even during the following operations.
• Erase (SSE, SE or CHE)
• Page Program (PP or PPL)
• Write Status Register (WRSR)
“Figure 7. Read Status Register (RDSR)” shows the
timing waveforms.
This command outputs the contents of the status registers
synchronized to the falling edge of the clock (SCK).
If the clock input is continued after bit0 (RDY) has been
output, the data is output by returning to bit7 (SRWP) that
was first output, after which the output is repeated for as long
as the clock input is continued. The data can be read by this
command at any time (even during a program, erase cycle).
By setting CS to high, the device is deselected, and Read
JEDEC ID cycle is completed. While the device is
deselected, the output pin SO is in a high−impedance state
The sequence of RDSR operation:
CS goes to low → input RDSR command (05h)
CS
Mode 3
0
1
2
3
4
5
6
7
8
15 16
23
SCK
SI
Mode 0
8CLK
05h
MSB
High Impedance
SO
DATA DATA DATA
MSB MSB MSB
• DATA: Status Resister, “Table 8. Status Register”
Figure 7. Read Status Register (RDSR)
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10
LE25S161
Write Status Register (WRSR)
“Figure 8. Write Status Register (WRSR)” shows the
timing waveforms.
“Figure 37. Write Status Register Flowcharts” shows the
flowcharts.
The information in status registers BP0, BP1, BP2, TB
and SRWP can be rewritten using this command. bit0
(RDY), bit1 (WEN) and bit6 (SUS) are read−only bits and
cannot be rewritten. The information in bits BP0, BP1, BP2,
TB and SRWP is stored in the non−volatile memory, and
when it is written in these bits, the contents are retained even
at power−down.
The sequence of WRSR operation:
CS goes to low → input WRSR command (01h)
→ Status Register data input on SI
→ CS goes to high (be executed by the rising CS edge)
Self−timed Write Cycle
t WRSR
CS
Mode3
0
1
2
3
4
5
6
7
8
15
SCK
SI
Mode0
8CLK
01h
DATA
MSB
High Impedance
SO
Figure 8. Write Status Register (WRSR)
Write Enable (WREN)
Write Disable (WRDI)
Before performing any of the operations listed below, the
device must be placed in the write enable state.
• Erase (SSE, SE, CHE or CHE)
This command sets status register WEN to “0” to prohibit
unintentional writing. The write disable state (WEN “0”) is
exited by setting WEN to “1” using the write enable
(WREN: 06h).
“Figure 10. Write Disable (WRDI)” shows the timing
waveforms.
• Page Program (PP or PPL)
• Write Status Register (WRSR)
Operation is the same as for setting status register WEN
to “1”, and the state is enabled by this command.
“Figure 9. Write Enable (WREN)” shows the timing
waveforms.
The sequence of WRDI operation:
CS goes to low → input WRDI command (04h)
→ CS goes to high (be executed by the rising CS edge)
The sequence of WREN operation:
CS
CS goes to low → input WREN command (06h)
→ CS goes to high (be executed by the rising CS edge)
Mode3
0
1 2 3
4 5 6 7
SCK
SI
CS
Mode0
8CLK
04h
Mode3
0
1 2 3
4 5 6 7
SCK
SI
Mode0
MSB
8CLK
06h
High Impedance
SO
Figure 10. Write Disable (WRDI)
MSB
High Impedance
SO
Figure 9. Write Enable (WREN)
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11
LE25S161
Standard SPI Read
There are two Read commands, “Low−Power Read
(RDLP: 03h)” and “High−Speed Read (RDHS: 0Bh)”.
→ completed by CS = high
*The data output starts from the falling edge of SCK (31th
clock)
Low−Power Read command (RDLP) − Maximum Clock
Frequency: 33.33 MHz
This command is for reading data out.
“Figure 11. Low−Power Read (RDLP)” shows the timing
waveforms.
The Address is latched on rising edge of SCK, and the
corresponding data is shifted out on SO by the falling edge
of SCK. The address is automatically incremented to the
next higher address after each byte data is shifted out. If the
SCK input is continued after the internal address arrives at
the highest address (1FFFFFh), the internal address returns
to the lowest address (000000h). By setting CS to high, the
device is deselected, and the read cycle is completed. While
the device is deselected, the output pin SO is in a
high−impedance state.
The sequence of RDLP operation:
CS goes to low → input RDLP command (03h) → 3 Byte
address (A23 − A0) input on SI
→ the corresponding data out on SO
→ continuous data out (n−byte) →→
CS
Mode3
0
1
2
3
4
5
6
7
8
15 16
23 24
31 32
39 40 47
SCK
SI
Mode0
8CLK
03h
Add
Add
Add
(A23−A16) (A15−A8)
(A7−A0)
Byte 1 Byte 2 Byte 3
DATA DATA DATA
High Impedance
SO
MSB
MSB
MSB
• Address A23 to A21 are “Don’t care”.
Figure 11. Low−Power Read (RDLP)
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12
LE25S161
High−Speed Read Command (RDHS) − Maximum Clock
frequency: 70 MHz
This command is for reading data out at the high
frequency operation.
“Figure 12. High−Speed Read (RDHS)” shows the timing
waveforms.
The Address is latched on rising edge of SCK. It is
necessary to add 1 dummy byte cycle after address is
latched, and the corresponding data is shifted out on SO by
the falling edge of SCK. The address is automatically
incremented to the next higher address after each byte data
is shifted out. If the SCK input is continued after the internal
address arrives at the highest address (1FFFFFh), the
internal address returns to the lowest address (000000h). By
setting CS to high, the device is deselected, and the read
cycle is completed. While the device is deselected, the
output pin SO is in a high−impedance state.
The sequence of RDHS operation:
CS goes to low → input RDHS command (0Bh) → 3 Byte
address (A23 − A0) input on SI
→ 1 byte dummy cycle → the corresponding data out on SO
→ continuous data out (n−byte) →→
→ completed by CS = high
*The data output starts from the falling edge of SCK(39th
clock)
CS
Mode3
0
1
2
3
4
5
6
7
8
15 16
23 24
31 32
39 40
47 48
55
SCK
SI
Mode0
8CLK
0Bh
Add
Add
Add
X
(A23−A16) (A15−A8)
(A7−A0)
MSB
Byte 1 Byte 2 Byte 3
DATA DATA DATA
MSB MSB MSB
High Impedance
SO
• Address A23 to A21 are “Don’t care”.
Figure 12. High−Speed Read (RDHS)
Dual Read
→ 1 byte dummy cycle → the corresponding data out on
There are two Dual read commands, the Dual Output Read
(RDDO) and the Dual I/O Read (RDIO).
They achieve the twice speed−up from ”High−Speed
Read (RDHS: 0Bh)”. The command list is shown in
“Table 6. Command Settings (Dual SPI)”
SI/SIO0 and SO/SIO1
→ continuous data out (n−byte) per 4 clock →→
→ completed by CS = high
*The data output starts from the falling edge of SCK (39th
clock)
Output Data
Table 11. PIN CONFIGURATIONS AT DUAL SPI MODE
SI/SIO0
SO/SIO1 bit7, 5, 3, 1
bit6, 4, 2, 0
Standard SPI
Dual SPI
SIO0
The Address is latched on rising edge of SCK. It is
necessary to add 1 dummy byte cycle after address is
latched, and the corresponding data is shifted out on SI/SIO0
and SO/SIO1 by the falling edge of SCK. The address is
automatically incremented to the next higher address after
each byte data (4 clock cycles) is shifted out. If the SCK
input is continued after the internal address arrives at the
highest address (1FFFFFh), the internal address returns to
the lowest address (000000h). By setting CS to high, the
device is deselected, and the read cycle is completed. While
the device is deselected, the output pin SO is in a
high−impedance state.
SI
→
→
SO
SIO1
Dual Output Read Command (RDDO) − Maximum Clock
Frequency: 50 MHz
The SI and SO pins change into the input/output pin
(SIOx) during this operation. It makes the data output x2 bit
and has achieved a high−speed output. bit7, 5, 3 and bit1are
output from SIO0. bit6, 4, 2 and bit0 are output from SIO1.
“Figure13. Dual Output Read (RDDO)” shows the timing
waveforms.
The sequence of RDDO operation:
CS goes to low → input RDDO command (3Bh) → 3 Byte
address (A23 − A0) input on SI
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CS
Mode3
Mode0
0
1
2
3
4
5
6
7
8
15 16
23 24
31 32
39 40
43 44
47
SCK
8CLK
3Bh
Byte 1
Byte 2 Byte 3
dummy
bit
Add
Add
Add
DATA0 DATA0 DATA0
SIO0
SIO1
(A23−A16) (A15−A8)
(A7−A0)
MSB
4CLK
4CLK
High Impedance
DATA1
DATA1 DATA1
MSB
MSB
MSB
DATA0: bit6, bit4, bit2, bit0
DATA1: dit7, bit5, bit3, bit1
• Address A23 to A21 are “Don’t care”.
Figure 13. Dual Output Read (RDDO)
Dual I/O Read Command (RDIO) − Maximum Clock
Frequency: 50 MHz
→ continuous data out (n−byte) per 4 clock →→
→ completed by CS = high
The SI and SO pins change into the input/output pin
(SIOx) during this operation. It makes the address input and
data output x2 bit and has achieved a high−speed output.
Add1 (A23, A21, −, A3 and A1) is input from SIO1 and
Add0 (A22, A20, −, A2 and A0) is input from SIO0. bit7, 5,
3 and bit1 are output from SIO0. bit6, 4, 2 and bit0 are output
from SIO1.
*The data output starts from the falling edge of SCK (23th
clock)
Input Address
Output Data
bit6, 4, 2, 0
bit7, 5, 3, 1
SI/SIO0
A22, 20, 18 −, A2, A0
SO/SIO1 A23, 21, 19 −, A3, A1
The Address is latched on rising edge of SCK. It is
necessary to add 4 dummy clocks after address is latched,
2CLK of the latter half of the dummy clock is in the state of
high impedance, the controller can switch I/O for this
period. The corresponding data is shifted out on SI/SIO0 and
SO/SIO1 by the falling edge of SCK. The address is
automatically incremented to the next higher address after
each byte data (4 clock cycles) is shifted out. If the SCK
input is continued after the internal address arrives at the
highest address (1FFFFFh), the internal address returns to
the lowest address (000000h). By setting CS to high, the
device is deselected, and the read cycle is completed. While
the device is deselected, the output pin SO is in a
high−impedance state.
“Figure 14. Dual I/O Read (RDIO)” shows the timing
waveforms.
The sequence of RDIO operation:
CS goes to low → input RDIO command (BBh)
→ 3 Byte address (A23 − A0) input on SI/SIO0 and
SO/SIO1 by 12 clock cycle
→ 2 dummy clock (SI/SIO0 and SO/SIO1 are don’t care)
+ 2 dummy clock (must set SI/SIO0 and SO/SIO1 high
impedance)
→ the corresponding data out on SI/SIO0 and SO/SIO
CS
0
1
2
3
4
5
6
7
8
22 23 24
19
20 21
27 28
31
Mode3
Mode0
SCK
dummy
bit
8CLK
BBh
Byte 1 Byte2
Byte3
Add1: A22, A20−A2, A0
X
DATA0 DATA0 DATA0
SIO0
SIO1
MSB
4CLK
12CLK
2CLK
2CLK
X
High Impedance
DATA1 DATA1 DATA1
Add2: A23, A21−A3, A1
MSB
MSB
MSB
DATA0: bit6, bit4, bit2, bit0
DATA1: dit7, bit5, bit3, bit1
• Address A23 to A21 are “Don’t care”.
Figure 14. Dual I/O Read (RDIO)
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Small Sector Erase (SSE)
CS goes to low → input SSE command (20h or D7h) →
3 Byte address (A23 − A0) input on SI
Small Sector Erase is an operation that sets the memory
cell data in any small sector to “1”. A small sector consists
of 4 kbytes.
“Figure 15. Small Sector Erase (SSE)” shows the timing
waveforms.
→ CS goes to high (be executed by the rising CS edge)
*A20 to A12 are valid address
After the correct input sequence the internal erase
operation is executed by the rising CS edge, and it is
completed automatically by the control exercised by the
internal timer (tSSE). The end of erase operation can also be
detected by status register (RDY).
“Figure 38. Small Sector Erase Flowcharts” shows the
flowcharts.
The sequence of SSE operation:
Self−timed Erase Cycle
t SSE
CS
Mode3
0
1
2
3
4
5
6
7
8
15 16
23 24
31
SCK
SI
Mode0
8CLK
20h / D7h
Add
Add
Add
(A23−A16) (A15−A8)
(A7−A0)
MSB
High Impedance
SO
• Address A23 to A21, A11 to A0 are “Don’t care”.
Figure 15. Small Sector Erase (SSE)
Sector Erase (SE)
CS goes to low → input SE command (D8h) → 3 Byte
address (A23 − A0) input on SI
Sector Erase is an operation that sets the memory cell data
in any sector to “1”. A sector consists of 64 kbytes.
“Figure 16. Sector Erase (SE)” shows the timing
waveforms.
“Figure 39. Sector Erase Flowcharts” shows the
flowcharts.
→ CS goes to high (be executed by the rising CS edge)
*A20 to A16 are valid address
After the correct input sequence the internal erase
operation is executed by the rising CS edge, and it is
completed automatically by the control exercised by the
internal timer (tSE). The end of erase operation can also be
detected by status register (RDY).
The sequence of SE operation:
Self−timed Erase Cycle
tSE
CS
Mode3
0
1
2
3
4
5
6
7
8
15 16
23 24
31
SCK
SI
Mode0
8CLK
D8h
Add
Add
Add
(A23−A16) (A15−A8)
(A7−A0)
MSB
High Impedance
SO
• Address A23 to A21, A15 to A0 are “Don’t care”.
Figure 16. Sector Erase (SE)
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Chip Erase (CHE)
Chip Erase is an operation that sets the memory cell data
in all sectors to “1”.
“Figure 17. Chip Erase (CHE)” shows the timing
waveforms.
“Figure40. Chip Erase Flowcharts” shows the flowcharts
CS goes to low → input CHE command (60h or C7h)
→ CS goes to high (be executed by the rising CS edge)
After the correct input sequence the internal erase
operation is executed by the rising CS edge, and it is
completed automatically by the control exercised by the
internal timer (tSE). The end of erase operation can also be
detected by status register (RDY).
The sequence of CHE operation:
Self−timed Erase Cycle
tCHE
CS
Mode3
0
1
2
3
4
5
6
7
SCK
Mode0
8CLK
60h / C7h
SI
MSB
High Impedance
SO
Figure 17. Chip Erase (CHE)
Page Program
“Figure 41. Page Program Flowcharts” shows the
flowcharts.
Normal Page Program (PP)
The sequence of PP or PPL operation:
Low−Power Page Program (PPL)
CS goes to low → input PP command (02h) or PPL
command (0Ah)
There are two Page Program commands, Normal program
(PP: 02h ) and Low−Power program (PPL: 0Ah). These two
commands are completely functionally the same. By
selecting the Low−Power program (PPL), the operating
current is reduced, but the program cycle time is extended.
(Iccpp > Iccppl, tPPL > tPP)
Page Program is an operation that programs any number
of bytes from 1 to 256 bytes within the same sector page
(page addresses: A20 to A8). Before initiating Page
Program, the data on the page concerned must be erased
using Small Sector Erase, Sector Erase, or Chip Erase. Page
Program (PP, PPL) allows only previous erased data (FFh).
“Figure 18. Normal Page Program (PP)”. “Figure 19.
Low−power Page Program (PPL)” shows the timing
waveforms.
→ 3 Byte address (A23 − A0) input on SI
→ n−Byte data input on SI →→
→ CS goes to high (be executed by the rising CS edge)
The program data must be loaded in 1−byte increments. If
the data loaded has exceeded 256 bytes, the 256 bytes loaded
last are programmed. After the correct input sequence the
internal program operation is executed by the rising CS
edge, and it is completed automatically by the control
exercised by the internal timer (tPP or tPPL). The end of
program operation can also be detected by status register
(RDY).
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Self−timed Program Cycle
tPP
CS
Mode3
Mode0
0
1
2
3
4
5
6
7
8
15 16
23 24
31 32
39 40
47
2079
SCK
Byte
256
8CLK
02h
Byte 1 Byte 2
PD PD
Add
Add
Add
SI
PD
(A23−A16) (A15−A8)
(A7−A0)
MSB
High Impedance
SO
• Address A23 to A21, A15 to A0 are “Don’t care”.
Figure 18. Normal Page Program (PP)
Self−timed Program Cycle
tPPL
CS
Mode3
Mode0
0
1
2
3
4
5
6
7
8
15 16
23 24
31 32
39 40
47
2079
SCK
Byte
256
8CLK
0Ah
Byte 1 Byte 2
PD PD
Add
Add
Add
SI
PD
(A23−A16) (A15−A8)
(A7−A0)
MSB
High Impedance
SO
• Address A23 to A21, A15 to A0 are “Don’t care”.
Figure 19. Low−Power Page Program (PPL)
Write Suspend (WSUS)
checked by using status register RDY bit or SUS bit, but the
device will not accept another command until it is ready.
• The Write Suspend is valid Erase cycle (SSE, SE and
CHE) or Program cycle (PP, PPL).
• If the Erase (SSE, SE, CHE) or Program (PP, PPL) entry
during the suspension, the suspension will be canceled
automatically. And a new Erase (SSE, SE, CHE),
Program (PP, PPL) will be executed. In this case, it is
necessary to erase/program the suspended area again.
• During Write Suspend, Read (RDSR, RDLP, RDHS,
RDDO, RDIO) and Resume (RESM) can be accepted.
• If the Software Reset is executed during the suspension,
the suspension will be canceled automatically.
The Write Suspend (WSUS) allow the system to interrupt
Small Sector Erase (SSE), Sector Erase (SE), Chip Erase
(CHE) or Page Program (PP, PPL).
“Figure 20. Write Suspend (WSUS)” shows the timing
waveforms.
The sequence of WSUS operation:
CS goes to low → input WSUS command (B0h)
→ CS goes to high (be executed by the rising CS edge)
After the command has been input, the device becomes
consumption current equivalent to standby within 20 ms. The
recovery time (tRSUS) is needed before next command
from suspend. The internal operation status could be
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LE25S161
tRSUS
CS
20 ms
Mode3
Mode0
0
1
2
3
4
5
6
7
3
4 5 6 7
0 1 2
SCK
8CLK
B0h
Next Command
(Read or Resume)
SI
MSB
High Impedance
MSB
SO
Operation Current
= Isb
Figure 20. Write Suspend (WSUS)
Resume (RESM)
The internal operation status could be checked by using
status register RDY bit or SUS bit.
This command (RESM) restarts erase cycle (SSE, SE,
CHE) or program cycle (PP, PPL) that was suspended.
“Figure 21. Resume (RESM)” shows the timing
waveforms.
This command will be ignored if the previous Write
Suspend operation was interrupted by unexpected power off
or re−erase/program (cancel of suspend) or Software Reset
(RST). To execute Write Suspend (WSUS) again after
Resume, it is necessary to wait for some time (tSUS).
The sequence of RESM operation:
CS goes to low → input RESM command (30h)
→ CS goes to high (be executed by the rising CS edge)
Self−timed Write Cycle
t / t / t
CHE SE SSE
/
t
/ t
PP PPL
CS
Mode3
0
1 2 3
4 5 6 7
SCK
Mode0
8CLK
30h
SI
MSB
High Impedance
SO
Figure 21. Resume (RESM)
Read ID
“Figure 22. Read JEDEC ID (RJID)” shows the timing
Read ID is an operation that reads the manufacturer code
(RJID) and device ID information (RID). These Read ID
commands are not accepted during writing. There are two
methods of reading the silicon ID, each of which is assigned
a device ID.
waveforms.
The sequence of RJID operation:
CS goes to low → input RJID command (9Fh)
→ Manufacture code (62h) out on SO → Memory type code
(16h) out on SO
Read JEDEC ID (RJID)
→ Memory capacity code out on SO (15h) → Reserve code
(00h) →→
→ completed by CS = high
This command (RJID) is compatible with the JEDEC
standard for SPI compatible serial memories.
“Table 12. JEDEC ID codes” lists the silicon ID codes.
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*The 4−byte code is output repeatedly as long as clock
inputs are present
Table 12. JEDEC ID CODES
Output Code
62h
*The data output starts from the falling edge of SCK (7th
clock)
Manufacturer code
By setting CS to high, the device is deselected, and Read
JEDEC ID cycle is completed. While the device is
deselected, the output pin SO is in a high−impedance state.
2 byte device ID
Memory type
Memory capacity code
Reserve code
16h
15h (16 MBit)
00h
CS
Mode3
0
1
2
3
4
5
6
7
8
15 16
23 24
31 32
39
SCK
SI
Mode0
8CLK
9Fh
High Impedance
SO
00h
MSB
62h
MSB
62h
MSB
16h
MSB
15h
MSB
Figure 22. Read JEDEC ID (RJID)
Read Device ID (RID)
This command (RID) is an operation that reads the Device
ID.
→ completed by CS = high
*The Device ID (88h) is output repeatedly as long as clock
inputs are present
*The data output starts from the falling edge of SCK (31th)
By setting CS to high, the device is deselected, and Read
ID cycle is completed. While the device is deselected, the
output pin SO is in a high−impedance state.
“Table 13. Device ID Code” lists the device ID codes.
“Figure 23. Read Device ID (RID)” shows the timing
waveforms.
The sequence of RID operation:
CS goes to low → input RID command (ABh) → 3 byte
Table 13. DEVICE ID CODE
Output Code
dummy cycle
→ Device ID (88h) out on SO →→
1 byte device ID
88h (LE25S161)
CS
Mode3
0
1
2
3
4
5
6
7
8
15 16
23 24
31 32
39
SCK
SI
Mode0
8CLK
ABh
X
X
X
High Impedance
SO
88h
MSB
88h
MSB
Figure 23. Read Device ID (RID)
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Deep Power−down (DP)
The standby current can be further reduced with this
command (DP).
“Figure 24. Deep Power−down (DP)” shows the timing
waveforms.
CS goes to low → input DP command (B9h)
→ CS goes to high (be executed by the rising CS edge)
The deep power−down command issued during an
internal write operation will be ignored.
The deep power−down state is exited using the deep
power−down exit (EDP). All other commands are ignored.
The sequence of DP operation:
Deep Power−down Standby
Standby current (Isb)
Current (Idsb)
CS
tDP
Mode3
0
1 2 3
4 5 6 7
SCK
Mode0
8CLK
B9h
SI
MSB
High Impedance
SO
Figure 24. Deep Power−down (DP)
Exit Deep Power−down (EDP) / Read Device ID (RDDI)
The Exit Deep Power−down (EDP) / Read Device ID
(RID) command is a multi−purpose command. It can be used
to exit the device from the deep power−down state, or read
the device ID information.
“Figure 25. Exiting from Deep Power−down” shows the
timing waveforms.
The sequence of EDP operation:
CS goes to low → input EDP command (ABh)
→ CS goes to high (be executed by the rising CS edge)
Exit Deep Power−down (EDP)
The exit deep power−down command consists only of the
first byte cycle, and it is initiated by inputting (ABh).
Deep Power−down Standby
Standby current (Isb)
current (Idsb)
CS
tRDP
Mode3
0
1 2 3
4 5 6 7
SCK
Mode0
8CLK
ABh
SI
MSB
High Impedance
SO
Figure 25. Exiting from Deep Power−down (EDP)
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Read Device ID (RDDI)
→ Device ID out on SO →→
Also the exit from deep power−down is completed by one
byte cycle or more of the Read Device ID (RID: ABh).
“Table 13. Device ID Code” lists the device ID codes.
“Figure 26. Read Device ID” shows the timing
waveforms.
→ completed by CS = high
*The Device ID is output repeatedly as long as clock inputs
are present
*The data output starts from the falling edge of SCK (31th
clock)
By setting CS to high, the device is deselected, and Read
ID cycle is completed. While the device is deselected, the
output pin SO is in a high−impedance state.
The sequence of EDP & RID operation:
CS goes to low → input RID command (ABh) → 3 byte
dummy cycle
Standby
Deep Power−down Standby current (Idsb)
current (Isb)
CS
t RDP
Mode3
0
1
2
3
4
5
6
7
8
31 32
39
SCK
SI
Mode0
24 Dummy
Bits
8CL
ABh
X
X
High Impedance
SO
Dev ID
Dev ID
Dev ID
MSB
Figure 26. Read Device ID
Software Reset
When the Software Reset is executed, an internal write
(erase/program) operation is cancel, a suspended status is
reset, and all volatility status register bits (WEN/RDY/SUS)
are reset. After the internal reset time (tRST), the device will
become stand−by state. If the Software Reset is executed
during a write (erase/program) operation, any dates on the
write operation will be broken.
The Reset command must input just after input the Reset
Enable command. If another command input after the Reset
Enable command, the Reset−Enable state will be invalid.
The Software Reset reset the device to the state just after
power−on. This operation consists of two commands: the
Reset Enable (RSTEN) and the Reset command (RST).
“Figure 27. Software Reset” shows the timing waveforms.
The sequence of Software Reset operation:
CS goes to low → input RSTEN command (66h)
→ CS goes to high
→ CS goes to low → input RST command (99h)
→ CS goes to high (be executed by the rising CS edge)
Internal reset time
(tRST)
CS
Mode3
0
1
2
3
4
5
6
7
0 1 2 3
4
5 6 7
SCK
Mode0
8CLK
66h
8CLK
99h
SI
MSB
High Impedance
MSB
SO
Figure 27. Software Reset
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Read SFDP (RSFDP)
→ 1 byte dummy cycle the corresponding parameter out on
The Read SFDP (Serial Flash Discoverable Parameter) is
an operation that reads the parameter about device
configurations, available commands and other features. The
SFDP parameters are stored in internal parameter tables.
These parameter tables can be interrogated by host system
software to enable adjustments needed to accommodate
divergent features from multiple vendors. SFDP is a
standard of JEDEC. JESD216. Rev 1.0.
“Table 14. SFDP Header” shows SFDP Header.
“Table 15. SFDP Parameter Table” shows SFDP
Parameter Table.
“Figure 28. Read SFDP (RSFDP)” shows the timing
waveforms.
SO
→ continuous parameter out (n−byte) →→
→ completed by CS = high
*A10 to A0 are valid address
*The parameter output starts from the falling edge of SCK
(39th clock)
The Address is latched on rising edge of SCK. It is
necessary to add 1 dummy byte cycle after address is
latched, and the corresponding parameter is shifted out on
SO by the falling edge of SCK. The address is automatically
incremented to the next higher address after each byte
parameter is shifted out. By setting CS to high, the device is
deselected, and Read SFDP cycle is completed. While the
device is deselected, the output pin SO is in a
high−impedance state.
The sequence of RSFDP operation:
CS goes to low → input RSFDP command (5Ah) → 3 Byte
address (A23 − A0) input on SI
CS
Mode3
0
1
2
3
4
5
6
7
8
15 16
23 24
31 32
39 40
47 48
55
SCK
SI
Mode0
8CLK
5Ah
Add
Add
Add
X
(A23−A16) (A15−A8)
(A7−A0)
MSB
Byte 1
Byte 2 Byte 3
High Impedance
SO
Param1 Param2 Param3
MSB MSB MSB
Figure 28. Read SFDP (RSFDP)
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Table 14. SFDP HEADER
Byte Address
(Hex)
Description
SFDP HEADER 1st AND 2nd DWORD
SFDP Signature
Comment
Bits
Data (Hex)
50444653h (SFDP)
00h
01h
02h
03h
04h
05h
06h
07h
7:0
53h
46h
44h
50h
05h
01h
02h
FFh
15:8
23:16
31:24
7:0
SFDP Minor Revision Number
SFDP Major Revision Number
Number of Parameter Headers
Unused
Start from 00h
Start from 01h
15:8
02h indicates 3 parameters
23:16
31:24
1st PARAMETER HEADER (JDEC BASIC FLASH PARAMETERS)
ID Number (JEDEC ID)
00h (JEDEC specified header)
Start from 00h
08h
09h
0Ah
0Bh
7:0
00h
00h
01h
10h
Parameter Table Minor Revision Number
Parameter Table Major Revision Number
15:8
Start from 01h
23:16
31:24
Parameter Table Length (in Double Word) How many DWORDs in the Parameter
table 10h indicates 16 DWORDs
Parameter Table Pointer (PTP)
Unused
First address of JEDEC Flash Parameter
table
0Ch
0Dh
0Eh
0Fh
7:0
40h
00h
00h
FFh
15:8
23:16
31:24
2nd PARAMETER HEADER (VENDER PARAMETERS 1)
ID Number (onsemi
Manufacturer ID)
62h (ON Semiconductor manufacturer ID)
10h
7:0
62h
Parameter Table Minor Revision Number
Parameter Table Major Revision Number
Start from 00h
Start from 01h
11h
12h
13h
15:8
23:16
31:24
00h
01h
04h
Parameter Table Length (in Double Word) How many DWORDs in the Parameter
table 04h indicates 4 DWORDs
Parameter Table Pointer (PTP)
Unused
First address of On Semiconductor
Parameter table
14h
15h
16h
17h
7:0
C0h
00h
00h
FFh
15:8
23:16
31:24
www.onsemi.com
23
LE25S161
Table 15. SFDP PARAMETER TABLE
Description
Byte
Address
(Hex)
Data
(Binary)
Data
(Hex)
Comment
Bits
JDEC Basic Flash Parameter Tables (from 1st DWORD TO 4th DWORD)
Block/Sector Erase Sizes
00b: Reserved
40h
1:0
01b
E5h
01b: support 4 kB Erase
10b: Reserved
11b: not support 4 kB Erase
Write Granularity
0: 1 Byte, 1:64 Byte or larger
2
3
1b
0b
Volatile Status Register Block Protect
Bits
0: Non−volatile
1: Volatile
Write Enable Instruction Select for Writ- 0: use 50h opcode, 1: use 06h opcode
4
0b
ing to Volatile Status Register
NOTE: If target flash status register is
nonvolatile, then bits 3 and 4 must be
set to 00b.
Unused
Contains 111b and can never be
changed
7:5
111b
4 kB Erase Instruction
(1−1−2) Fast Read
Address Bytes
20h
41h
42h
15:8
16
0010_0000b
20h
91h
0 = not support 1 = support
1b
00: 3 Byte only, 01: 3 or 4 Byte,
10: 4 Byte only, 11: Reserved
18:17
00b
Double Transfer Rate (DTR) Clocking
(1−2−2) Fast Read
(1−4−4) Fast Read
(1−1−4) Fast Read
Unused
0 = not support 1 = support
0 = not support 1 = support
0 = not support 1 = support
0 = not support 1 = support
19
20
0b
1b
21
0b
22
0b
23
1b
1111_1111b
−
Unused
43h
31:24
31:0
FFh
Flash Memory Density
16 M bits
44h
45h
46h
47h
00FFFFFFh
(1−4−4) Fast Read Number of Wait
0 0000b: Wait states (dummy Clocks)
not support
48h
4:0
7:5
0_0000b
000b
00h
States (Dummy Clocks)
(1−4−4) Fast Read Number of Mode
Clocks
000b: Mode Bits not support
(1−4−4) Fast Read Instruction
49h
4Ah
15:8
1111_1111b
0_0000b
FFh
00h
(1−1−4) Fast Read Number of Wait
States (Dummy Clocks)
0 0000b: Wait states (dummy Clocks)
not support
20:16
(1−1−4) Fast Read Number of Mode
Clocks
000b: Mode Bits not support
23:21
000b
(1−1−4) Fast Read Instruction
4Bh
4Ch
31:24
4:0
1111_1111b
0_1000b
FFh
08h
(1−1−2) Fast Read Number of Wait
States (Dummy Clocks)
0 0000b: Wait states (dummy Clocks)
not support
(1−1−2) Fast Read Number of Mode
Clocks
000b: Mode Bits not support
7:5
000b
(1−1−2) Fast Read Instruction
4Dh
4Eh
15:8
0011_1011b
0_0100b
3Bh
04h
(1−2−2) Fast Read Number of Wait
States (Dummy Clocks)
0 0000b: Wait states (dummy Clocks)
not support
20:16
(1−2−2) Fast Read Number of Mode
000b: Mode Bits not support
23:21
31:24
000b
Clocks
(1−2−2) Fast Read Instruction
4Fh
1011_1011b
BBh
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24
LE25S161
Table 15. SFDP PARAMETER TABLE (continued)
Byte
Address
(Hex)
Data
(Binary)
Data
(Hex)
Description
Comment
Bits
JDEC BASIC FLASH PARAMETER TABLES (FROM 5th DWORD TO 8th DWORD)
(2−2−2) Fast Read
Reserved
0 = not support 1 = support
Default all 1’s
50h
0
3:1
4
0b
111b
0b
EEh
(4−4−4) Fast Read
Reserved
0 = not support 1 = support
Default all 1’s
7:5
31:8
111b
−
Reserved
Default all 1’s
51h
52h
53h
FFh
FFh
FFh
Reserved
Default all 1’s
54h
55h
15:0
−
FFh
FFh
(2−2−2) Fast Read Number of Wait
0 0000b: Wait states (dummy Clocks)
not support
56h
20:16
23:21
0_0000b
000b
00h
states (Dummy Clocks)
(2−2−2) Fast Read Number of Mode
Clocks
000b: Mode Bits not support
(2−2−2) Fast Read Instruction
57h
31:24
15:0
1111_1111b
FFh
Reserved
Default all 1’s
58h
59h
−
FFh
FFh
(4−4−4) Fast Read Number of Wait
0 0000b: Wait states (dummy Clocks)
not support
5Ah
20:16
23:21
0_0000b
000b
00h
States (Dummy Clocks)
(4−4−4) Fast Read Number of Mode
Clocks
000b: Mode Bits not support
(4−4−4) Fast Read Instruction
5Bh
5Ch
31:24
7:0
1111_1111b
0000_1100b
FFh
0Ch
Sector Type 1 Size
Sector/block size = 2^N bytes
0Ch indicates 4 kbytes
Sector Type 1 Erase Instruction
Sector Type 2 Size
5Dh
5Eh
15:8
0010_0000b
0001_0000b
20h
10h
Sector/block size = 2^N bytes
10h indicates 64 kbytes
23:16
Sector Type 2 Erase Instruction
5Fh
60h
31:24
7:0
1101_1000b
0000_0000b
D8h
00h
JDEC BASIC FLASH PARAMETER TABLES (FROM 9th DWORD TO 12th DWORD)
Sector Type 3 Size
Sector/block size = 2^N bytes
00h indicates not exist
Sector Type 3 Erase Instruction
Sector Type 4 Size
61h
62h
15:8
1111_1111b
0000_0000b
FFh
00h
Sector/block size = 2^N bytes
00h indicates not exist
23:16
Sector Type 4 Erase Instruction
63h
64h
31:24
3:0
1111_1111b
0100b
FFh
94h
Multiplier from Typical Erase Time to
Maximum Erase Time
SE (64 k−Byte erase):
150 ms = 2 x (n + 1) x 15 ms
n = 4
Sector Type 1 Erase, Typical Time
Sector Type 2 Erase, Typical Time
SSE (4 k−Byte erase)
10 ms: ((n + 1) x 1 ms = 10 ms)
n = 9
10:4
00_01001b
00_01110b
65h
70h
SE (64 k−Byte erase)
17:11
15 ms: ((n + 1) x 1 ms = 15 ms)
n = 14
66h
67h
00h
00h
Sector Type 3 Erase, Typical Time
Sector Type 4 Erase, Typical Time
−
−
24:18
31:25
00_00000b
00_00000b
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25
LE25S161
Table 15. SFDP PARAMETER TABLE (continued)
Byte
Address
(Hex)
Data
(Binary)
Data
(Hex)
Description
Comment
Bits
JDEC BASIC FLASH PARAMETER TABLES (FROM 9th DWORD TO 12th DWORD)
Multiplier from Typical Time to Max
Time for Page or Byte Program
(n + 1) x 0.3 ms
= 0.9 ms: n = 2, 0.9 ms > 0.7 ms (spec)
68h
3:0
0010b
82h
Page Size
256 Bytes =2^8
7:4
1000b
Page Program Typical Time
(n + 1) x 64 ms
69h
6Ah
6Bh
13:8
1_00110b
E6h
07h
0Ch
= 448 ms: n = 6, 448 ms > 400 ms (spec)
Byte Program Typical Time, First Byte
(n + 1) x 8 ms
= 128 ms: n = 15
15:14
18:16
23:19
1_1111b
Byte Program Typical Time, Additional
Byte
(count + 1) x 1 ms/byte
= 1 ms/byte: Count = 0
0_0000b
Chip Erase, Typical Time
(n + 1) x 16 ms
= 208 ms: n = 12, 208 ms = 210 ms
(spec)
30:24
00_01100b
Reserved
−
31
0b
Prohibited Operations During Program
Suspend
xxx0b: May not initiate a new erase
anywhere
6Ch
3:0
1101b
FDh
xxx1b: May not initiate a new erase in
the program suspended page size
xx0xb: May not initiate a new page
program anywhere
xx1xb: May not initiate a new page
program in the program suspended
page size
x0xxb: Refer to vendor datasheet for
read restrictions
x1xxb: May not initiate a read in the
program suspended page size
0xxxb: Additional erase or program
restrictions apply
1xxxb: The erase and program
restrictions in bits 1:0 are sufficient
Prohibited Operations During Erase
Suspend
xxx0b: May not initiate a new erase
anywhere
xxx1b: May not initiate a new erase in
the erase suspended sector size
xx0xb: May not initiate a page program
anywhere
7:4
1111b
xx1xb: May not initiate a page program
in the erase suspended sector size
x0xxb: Refer to vendor datasheet for
read restrictions
x1xxb: May not initiate a read in the
erase suspended sector size
0xxxb: Additional erase or program
restrictions apply
1xxxb: The erase and program
restrictions in bits 5:4 are sufficient
Reserved
−
6Dh
8
0b
80h
Program Resume to Suspend Interval
<64 ms: (count + 1) x 64 ms, count = 0
40 ms: ((4 + 1) x 8 ms = 40 ms)
12:9
0000b
Suspend In−progress
Program Max Latency
15:13
19:16
23:20
30:24
10_00100b
6Eh
6Fh
08h
44h
Erase Resume to Suspend Interval
<64 ms: (count + 1) x 64 ms, count = 0
40 ms: ((4 + 1) x 8 ms = 40 ms)
0000b
Suspend In−progress
Erase Max Latency
10_00100b
Suspend/Resume Supported
0 = support 1 = not support
31
0b
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26
LE25S161
Table 15. SFDP PARAMETER TABLE (continued)
Byte
Address
(Hex)
Data
(Binary)
Data
(Hex)
Description
Comment
Bits
JDEC BASIC FLASH PARAMETER TABLES (FROM 13th DWORD TO 16th DWORD)
Program Resume Instruction
(Program Operation)
30h (as same as erase resume)
B0h (as same as erase suspend)
30h (as same as program resume)
B0h (as same as program suspend)
70h
71h
72h
73h
74h
7:0
0011_0000b
1011_0000b
0011_0000b
1011_0000b
30h
B0h
30h
B0h
04h
Program Suspend Instruction
(Program Operation)
15:8
Resume Instruction
(Write or Erase Type Operation)
23:16
31:24
Suspend Instruction
(Write or Erase Type Operation)
Reserved
1:0
7:2
00b
Status Register Polling
Device Busy
Use legacy polling by reading the
Status Register with 05h instruction
0000_01b
Exit Deep Power Down to Next
Operation Delay
40 ms: ((4+1) x 8 ms = 40 ms)
75h
14:8
10_00100b
1010_1011b
C4h
Exit Deep Power Down Instruction
ABh
15
22:16
23
76h
77h
78h
79h
D5h
5Ch
00h
00h
Enter Deep Power Down Instruction
B9h
1011_1001b
30:24
31
Deep Power Down Supported
(4−4−4) Mode Disable Sequences
(4−4−4) Mode Enable Sequences
0 = support 1 = not support
0b
0000b
0000b
0b
−
−
3:0
7:4
8
(0−4−4) Mode Supported
(0−4−4) Mode Exit Method
(0−4−4) Mode Entry Method
Quad Enable Requirements (QER)
Hold and WP Disable
0 = not support 1 = support
9
0b
−
15:10
19:16
22:20
23
00_0000b
0000b
000b
−
7Ah
00h
00b: not have a QE bit
0: not supported
−
0b
Reserved
7Bh
7Ch
31:24
6:0
0000_0000b
001_1001b
00h
19h
Volatile or Non−Volatile Register and
xxx_xxx1b: Non−Volatile Status
Write Enable Instruction for Status Reg- Register 1, powers−up to last written
ister 1
value, use instruction 06h to enable
write
xx1_xxxxb: Status Register 1 contains
a mix of volatile and non−volatile bits.
The 06h instruction is used to enable
writing of the register.
Reserved
−
7
0b
Soft Reset and
Rescue Sequence Support
Issue reset enable instruction 66h, and
then issue reset instruction 99h.
7Dh
13:8
01_0000b
10h
Exit 4−Byte Addressing
Enter 4−Byte Addressing
15:14
23:16
31:24
00b
7Eh
7Fh
0000_0000b
0000_0000b
00h
00h
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27
LE25S161
Table 15. SFDP PARAMETER TABLE (continued)
Byte
Address
(Hex)
Data
(Binary)
Data
(Hex)
Description
Comment
Bits
VENDER (ON SEMICONDUCTOR) PARAMETER 1 TABLES (FROM 1th DWORD TO 4th DWORD)
Supply Maximum Voltage
1900h = 1.900 V
1950h = 1.950 V
2000h = 2.000 V
2200h = 2.200 V
2400h = 2.400 V
2700h = 2.700 V
3000h = 3.000 V
3600h = 3.600 V
C0h
C1h
15:0
−
−
50h
19h
Supply Minimum Voltage
1600h = 1.600 V
1650h = 1.650 V
1700h = 1.700 V
1800h = 1.800 V
20000h = 2.000 V
22000h = 2.200 V
23000h = 2.300 V
27000h = 2.700 V
C2h
C3h
31:16
50h
16h
RESET Pin
0 = not support
1 = support
C4h
0
1
2
3
4
5
0b
0b
14h
RESET Active Logic Level
HOLD Pin
0 = active logic is 0
1 = active logic is 1
0 = not support
1 = support
1b
HOLD Active Logic Level
WP Pin
0 = active logic is 0
1 = active logic is 1
0b
0 = not support
1 = support
1b
WP Active Logic Level
0 = active logic is 0
1 = active logic is 1
0b
Reserved
Reserved
00b
7:6
00b
All FFh
C5h
C6h
C7h
31:8
1111_1111b
1111_1111b
1111_1111b
FFh
FFh
FFh
JDEC ID Operation Code
9Fh
C8h
C9h
7:0
1001_1111b
0110_0010b
9Fh
62h
JDEC ID Read Data
(Manufacture Code)
62h (ON Semiconductor)
15:8
JDEC ID Read Data
(Memory Type)
16h
CAh
CBh
23:16
31:24
0001_0110b
0001_0101b
16h
15h
JDEC ID Read Data
(Memory Capacity Code)
15h (16 Mbits)
Device ID Operation Code
Device ID Read Data
Reserved
ABh
CCh
CDh
7:0
15:8
31:16
1010_1011b
1000_1000b
ABh
88h
88h (LE25S161)
All FFh
CEh
CFh
1111_1111b
1111_1111b
FFh
FFh
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28
LE25S161
HOLD FUNCTION
Using the HOLD pin, the hold function suspends serial
high, HOLD must not rise or fall. The hold function takes
effect when the logic level of CS is low, the hold status is
exited and serial communication is reset at the rising CS
edge. In the hold status, the SO output is in the
high−impedance state, and SI and SCK are ”don’t care”.
communication (it places it in the hold status). “Figure 29.
HOLD Function” shows the timing waveforms. The device
is placed in the hold status at the falling HOLD edge while
the logic level of SCK is low, and it exits from the hold status
at the rising HOLD edge. When the logic level of SCK is
Active
CS
HOLD
Active
tHS
tHS
SCK
tHH
tHH
HOLD
tHHZ
tHLZ
High Impedance
SO
Figure 29. HOLD Function
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29
LE25S161
POWER−ON
In order to protect against unintentional writing, CS must
be within at V −0.3 to V +0.3 on power−on. After
The device is in the standby state after power is turned on.
DD
DD
power−on, the supply voltage has stabilized at V (min) or
DD
higher, and waits for t
before CS is driven to “Low”.
VSL
VDD
VDD (Max)
Program, Erase and Write Commands are Ignored
Chip Select (CS = “L”) is Not Allowed
VDD (Min)
tVSL
Read Command is
allowed
Full Access Allowed
Reset
State
VWI
tPUW
0 V
time
Figure 30. Power−on Timing
Table 16. POWER−UP TIMING
Spec
Min
300
100
1.0
Max
−
Parameter
Symbol
Unit
ms
V
DD
(Min) to CS Low
t
VSL
Time to Write Operation
Operation Inhibit Voltage
t
500
1.5
ms
PUW
V
WI
V
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30
LE25S161
HARDWARE DATA PROTECTION
LE25S161 incorporates a power−on reset function. The
following conditions must be met in order to ensure that the
power reset circuit will operate stably.
No guarantees are given for data in the event of an
instantaneous power failure occurring during the writing
period.
VDD
VDD (Max)
VDD (Min)
tPD
0 V
vBOT
Figure 31. Power−down Timing
Table 17. POWER−DOWN TIMING
Spec
Min
10
−
Max
−
Parameter
Power−down Time
Power−down Voltage
Symbol
Unit
ms
V
t
PD
V
BOT
0.2
SOFTWARE DATA PROTECTION
DECOUPLING CAPACITOR
0.1 mF ceramic capacitor must be provided to each device
The LE25S161 eliminates the possibility of unintentional
operations by not recognizing commands under the
following conditions.
and connected between V and V in order to ensure that
DD
SS
the device will operate stably.
• When a write command is input and the rising CS edge
timing is not in a byte cycle (8 CLK units of SCK)
• When the Page Program data is not in 1−byte increments
• When the Write Status Register command is input for
2 bytes cycles or more
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31
LE25S161
SPECIFICATIONS
Absolute Maximum Ratings
Table 18. ABSOLUTE MAXIMUM RATINGS
Parameter
Maximum Supply Voltage
DC Voltage (All Pins)
Symbol
Conditions
Rating
Unit
V
With respect to V
With respect to V
−0.5 to +2.6
SS
SS
−0.5 to V + 0.5
V
DD
Storage Temperature
Tstg
−55 to +150
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
Operating Conditions
Table 19. OPERATING CONDITIONS
Parameter
Operating Supply Voltage
Operating Ambient Temperature
Symbol
Conditions
Rating
Unit
V
1.65 to 1.95
−40 to +90
°C
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
Data Retention, Rewriting Cycles
Table 20. DATA RETENTION, REWRITING CYCLES
Parameter
Symbol
Conditions
Status resister write
Program/Erase
Min
100,000
100,000
20
Max
−
Unit
Rewrite Cycles
Data Retention
cycRW
cycles/
Sector
−
tDRET
−
year
Pin Capacitance at Ta = 255C, f = 1 MHz
Table 21. PIN CAPACITANCE (Ta = 25°C, f = 1 MHz)
Rating
Max
12
6
Parameter
Output Pin Capacitance
Input Pin Capacitance
Symbol
Conditions
Unit
pF
C
V
= 0 V
SO
SO
C
V = 0 V
IN
pF
IN
NOTE: These parameter values do not represent the results of measurements undertaken for all devices but rather values for some of the
sampled devices.
AC Test Conditions
Input pulse level
Input rising/falling time
Input timing level
Output timing level
Output load
0.2 V to 0.8 V
5 ns
NOTE: As the test conditions for “typ”, the
measurements are conducted using 1.8 V for
DD
DD
0.3 V , 0.7 V
V
DD
at room temperature.
DD
DD
1/2 x V
15 pF
DD
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32
LE25S161
Input level
Input / Output timing level
0.8 V
0.2 V
DD
0.7 V
DD
DD
1/2 V
0.3 V
DD
DD
Figure 32.
DC Characteristics
Table 22. DC CHARACTERISTICS
V
DD
= 1.65 to 1.95 V
Rating
Min
Typ
Max
4.5
Parameter
Symbol
Conditions
Unit
Read Mode Operating Current
I
SCK = 0.1 V
Low−Power
Read
(RDLP: 03h)
33.33 MHz
−
3.5
mA
CCR
DD
/ 0.9 V
,
DD
HOLD = WP =
0.9 V
,
DD
High−Speed
Read
(RDHS: 0Bh)
33.33 MHz
70 MHz
−
−
−
4.0
6.0
5.0
5.5
7.0
7.0
SO = open
Dual Output
Read
33.33 MHz
(RDDO: 3Bh)
or
Dual I/O Read
(RDIO: BBh)
50 MHz
−
6.0
7.0
Small Sector Erase Operating
Current
I
t
=max
−
−
−
−
−
−
−
3.5
3.5
4.0
6.5
5.0
9
4.5
4.5
5.0
7.5
6.5
50
mA
mA
mA
mA
mA
mA
CCSSE
SSE
Average current
Sector Erase Operating
Current
I
t
SE
=max
CCSE
Average current
t =max
CHE
Chip Erase Operating Current
I
CCCHE
Average current
t =max
PP
Normal Program Mode
Operating Current
I
CCPP
Average current
t =max
PPL
Low−Power Program Mode
Operating Current
I
CCPPL
Average current
CMOS Standby Current
I
SB
CS = V , HOLD = WP = V
SI = VSS / V , SO = open
,
,
DD
DD
DD
DD
Deep Power−down Standby
Current
I
CS = V , HOLD = WP = V
SI = VSS / V , SO = open
3.0
12
mA
DSB
DD
DD
Input Leakage Current
Output Leakage Current
Input Low Voltage
I
−
−
−
−
−
−
−
−
−
2.0
2.0
mA
mA
V
LI
I
LO
V
−0.3
0.3 V
DD
IL
Input High Voltage
V
V
0.7 V
V + 0.3
DD
V
IH
DD
Output Low Voltage
−
−
0.2
V
I
I
I
= 100 mA, V = V min
DD DD
OL
OL
OL
OH
= 1.6 mA, V = V min
0.4
DD
DD
Output High Voltage
V
OH
= −100 mA, V = V min
V − 0.2
DD
−
V
DD
DD
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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33
LE25S161
AC Characteristics
Table 23. AC CHARACTERISTICS
Rating
Min
Typ
−
Max
33.33
50
Parameter
Symbol
Unit
Clock Frequency
f
MHz
Low−Power Read (RDLP: 03h)
−
−
CLK
Dual Output Read (RDDO: 3Bh)
Dual I/O Read (RDIO: BBh)
−
Other Instructions
−
0.1
11
8
−
−
70
−
Input Signal Rising/Falling Time
SCK Logic High Level Pulse Width
t
V/ns
ns
RF
t
33.33 MHz
50 MHz
−
−
CLHI
−
−
70 MHz
6
−
−
SCK Logic Low Level Pulse Width
t
ns
33.33 MHz
50 MHz
11
8
−
−
CLLO
−
−
70 MHz
6
−
−
CS Active Setup Time
CS Not Active Hold Time
Data Setup Time
t
t
6
−
−
ns
ns
ns
ns
ns
ns
ns
ns
ns
SLCH
6
−
−
CHSL
t
3
−
−
DS
Data Hold Time
t
3
−
−
DH
CS Wait Pulse Width
t
20
6
−
−
CPH
CS Active Hold Time
t
t
−
−
CHSH
SHCH
CS Not Active Setup Time
Output High Impedance Time from CS
Output Data Time from SCK
6
−
−
t
−
−
8
CHZ
t
V
33.33 MHz
50 MHz
−
−
10
8
−
−
70 MHz
−
−
8
Output Data Hold Time
t
1
−
−
ns
ns
ns
ns
ns
ns
ns
ns
ms
ms
HO
Output Low Impedance Time from SCK
HOLD Setup Time
t
0
−
−
CLZ
t
6
−
−
HS
HH
HOLD Hold Time
t
6
−
−
Output Low Impedance Time from HOLD
Output High Impedance Time from HOLD
WP Setup Time
t
−
−
8
HLZ
t
−
−
8
HHZ
t
20
20
−
−
−
WPS
WPH
WP Hold Time
t
−
−
Write Status Register Time
Normal Page Programming Cycle Time
t
5
8
WRSR
t
256 Byte
nByte
−
0.40
0.70
PP
−
0.14 + n x 0.26 / 256 0.35 + n x 0.35 / 256
0.60 1.20
0.14 + n x 0.46 / 256 0.50 + n x 0.70 / 256
Low−Power Page Programming
Cycle Time
t
ms
256 Byte
nByte
−
PPL
−
Small Sector Erase Cycle Time
Sector Erase Cycle Time
Chip Erase Cycle Time
t
−
10
15
210
−
120
150
2400
40
ms
ms
ms
ms
SSE
t
−
SE
t
−
CHE
Recovery Time from Suspend
Deep Power−down Time
Deep Power−down Recovery Time
Internal Reset Time
t
−
RSUS
t
−
−
5
ms
DP
t
−
−
40
ms
RDP
tRST
−
−
40
ms
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
www.onsemi.com
34
LE25S161
TIMING WAVEFORMS
tCPH
CS
tSHCH
tCHSL
tSLCH
tCLHI
tCLLO
tCHSH
SCK
tDS
tDH
SI
DATA VALID
High Impedance
High Impedance
SO
Figure 33. Serial Input Timing
CS
SCK
tCLZ
tHO
tCHZ
SO
SI
DATA VALID
tV
Figure 34. Serial Output Timing
CS
tHH
tHS
tHH
tHS
SCK
HOLD
SI
tHLZ
High Impedance
tHHZ
Figure 35. Hold Timing
CS
tWPS
tWPH
WP
Figure 36. Status Resister Write Timing
www.onsemi.com
35
LE25S161
Small Sector Erase
Start
Write Status Register
Start
Write enable
(WREN)
06h
Set Small Sector
Erase command
(SSE)
20h / D7h
Address 1
Address 2
Address 3
06h
Write enable
(WREN)
01h
Set Write Status
Register command
(WRSR)
Data
Program start on rising
edge of CS
Start erase on rising
edge of CS
Set
Set
05h
05h
Read Status Register
command
(RDSR)
Read Status Register
command
(RDSR)
NO
NO
Bit 0 = “0” ?
YES
Bit 0 = “0” ?
YES
End of Write Status
Register
End of erase
* Automatically placed in write disabled state
at the end of the Write Status Register
* Automatically placed in write disabled
state at the end of the erase
Figure 37. Write Status Register Flowcharts
Figure 38. Small Sector Erase Flowcharts
www.onsemi.com
36
LE25S161
Sector Erase
Start
Write enable
(WREN)
06h
Chip Erase
Start
Set Sector Erase
command
(SE)
D8h
Write enable
(WREN)
Address 1
Address 2
Address 3
06h
Set Chip Erase
command
(CHE)
60h / C7h
Start erase on rising
edge of CS
Start erase on rising
edge of CS
Set
05h
Read Status Register
command
(RDSR)
Set
05h
Read Status Register
command
(RDSR)
Bit 0 = “0” ?
YES
NO
Bit 0 = “0” ?
YES
NO
End of erase
End of erase
* Automatically placed in write disabled
state at the end of the erase
* Automatically placed in write disabled state at
the end of the erase
Figure 39. Sector Erase Flowcharts
Figure 40. Chip Erase Flowcharts
www.onsemi.com
37
LE25S161
Page Program
Start
06h
Write enable
(WREN)
02h or 0Ah
Address 1
Address 2
Address 3
Data 0
Set Page Program
command
(PP/PPL)
*02h: Normal Program Mode (PP)
*0Ah: Low−Power Program Mode (PPL)
Data n
Start program on rising
edge of CS
Set
05h
Read Status Register
command
(RDSR)
NO
Bit 0 = “0” ?
YES
End of
programming
* Automatically placed in write disabled state at
the end of the programming operation.
Figure 41. Page Program Flowcharts
www.onsemi.com
38
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
WLCSP8 2.92x1.53x0.525
CASE 567YR
ISSUE O
DATE 21 NOV 2019
GENERIC
MARKING DIAGRAM*
XXXX = Specific Device Code
*This information is generic. Please refer to
A
L
= Assembly Location
= Wafer Lot
device data sheet for actual part marking.
Pb−Free indicator, “G” or microdot “G”, may
or may not be present. Some products may
not follow the Generic Marking.
XXXXX
XXXXX
ALYW
Y
W
= Year
= Work Week
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
DOCUMENT NUMBER:
DESCRIPTION:
98AON14166H
WLCSP8 2.92x1.53x0.525
PAGE 1 OF 1
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically
disclaims any and all liability, including without limitation special, consequential or incidental damages. ON Semiconductor does not convey any license under its patent rights nor the
rights of others.
© Semiconductor Components Industries, LLC, 2018
www.onsemi.com
onsemi,
, and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its affiliates
and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property.
A listing of onsemi’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. onsemi reserves the right to make changes at any time to any
products or information herein, without notice. The information herein is provided “as−is” and onsemi makes no warranty, representation or guarantee regarding the accuracy of the
information, product features, availability, functionality, or suitability of its products for any particular purpose, nor does onsemi assume any liability arising out of the application or use
of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products
and applications using onsemi products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information
provided by onsemi. “Typical” parameters which may be provided in onsemi data sheets and/or specifications can and do vary in different applications and actual performance may
vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. onsemi does not convey any license
under any of its intellectual property rights nor the rights of others. onsemi products are not designed, intended, or authorized for use as a critical component in life support systems
or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should
Buyer purchase or use onsemi products for any such unintended or unauthorized application, Buyer shall indemnify and hold onsemi and its officers, employees, subsidiaries, affiliates,
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