S25FL002D0FNAI003 [SPANSION]
2 Megabit, 1 Megabit CMOS 3.0 Volt Flash Memory with 25 MHz SPI Bus Interface; 2兆， 1兆比特的CMOS 3.0伏闪存与25 MHz的SPI总线接口
| 型号： | S25FL002D0FNAI003 |
| 厂家： | 
SPANSION |
| 描述： | 2 Megabit, 1 Megabit CMOS 3.0 Volt Flash Memory with 25 MHz SPI Bus Interface |
| 文件： | 总38页 (文件大小：962K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
S25FL Family (Serial Peripheral Interface)
S25FL002D, S25FL001D
2 Megabit, 1 Megabit CMOS 3.0 Volt Flash Memory
with 25 MHz SPI Bus Interface
PRELIMINARY
INFORMATION
Distinctive Characteristics
Package Option
— Industry Standard Pinouts
— 150 mil 8-pin SO package for 1Mb and 2Mb
— 208 mil 8-pin SO package for 2Mb only
— 8-contact WSON leadless package (6x5 mm)
ARCHITECTURAL ADVANTAGES
Single power supply operation
— Full voltage range: 2.7 to 3.6 V read and program
operations
Memory Architecture
— 2 Mb – Four sectors with 512 Kb each
— 1 Mb – Four sectors with 256 Kb each
Program
— Page Program (up to 256 bytes) in 6 ms (typical)
— Program cycles are on a page by page basis
Erase
PERFORMANCE CHARACTERISTICS
Speed
— 25 MHz clock rate (maximum)
Power Saving Standby Mode
— Standby Mode 1 µA (typical)
— 0.25 s typical sector erase time (S25FL001D)
— 0.5 s typical sector erase time (S25FL002D)
— 1.0 s typical bulk erase time (S25FL001D)
— 2.0 s typical bulk erase time (S25FL002D)
Endurance
— 100,000 cycles per sector typical
Data Retention
— 20 years typical
Memory Protection Features
Memory Protection
— W# pin works in conjunction with Status Register Bits
to protect specified memory areas
— Status Register Block Protection bits (BP1, BP0) in
status register configure parts of memory as read-
only
Device ID
— Electronic signature
Process Technology
SOFTWARE FEATURES
SPI Bus Compatible Serial Interface
— Manufactured on 0.25 µm process technology
Publication Number 30167 Revision A Amendment +1 Issue Date June 9, 2004
P r e l i m i n a r y I n f o r m a t i o n
General Description
The S25FL002D and S25FL001D devices are 3.0 Volt (2.7 V to 3.6 V) single power supply
Flash memory devices. S25FL002D consists of four sectors, each with 512 Kb memory.
S25FL001D consists of four sectors, each with 256 Kb memory.
Data appears on SI input pin when inputting data into the memory and on the SO output
pin when outputting data from the memory. The devices are designed to be programmed
in-system with the standard system 3.0 Volt VCC supply.
The memory can be programmed 1 to 256 bytes at a time, using the Page Program in-
struction.
The memory supports Sector Erase and Bulk Erase instructions.
Each device requires only a 3.0 Volt power supply (2.7 V to 3.6 V ) for both read and
write functions. Internally generated and regulated voltages are provided for the program
operations. This device does not require VPP supply.
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Table of Contents
Figure 11. Page Program (PP) Instruction Sequence.............. 20
Sector Erase (SE) .................................................................................. 20
Figure 12. Sector Erase (SE) Instruction Sequence ............... 21
Bulk Erase (BE) ....................................................................................... 21
Figure 13. Bulk Erase (BE) Instruction Sequence .................. 22
Software Protect (SP) ......................................................................... 22
Figure 14. Software Protection (SP) Instruction Sequence...... 23
Release from Software Protect (RES) .............................................23
Figure 15. Release from Software Protect (RES) Instruction
Sequence........................................................................ 24
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . .5
Input/Output Descriptions . . . . . . . . . . . . . . . . . . . 5
Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . .6
Signal Description . . . . . . . . . . . . . . . . . . . . . . . . . . .7
SPI Modes ...................................................................................................7
Figure 1. Bus Master and Memory Devices on the SPI Bus.......
Figure 2. SPI Modes Supported............................................
8
8
Operating Features . . . . . . . . . . . . . . . . . . . . . . . . .9
Page Programming .................................................................................. 9
Sector Erase, or Bulk Erase ................................................................. 9
Polling During a Write, Program, or Erase Cycle ........................ 9
Status Register ......................................................................................... 9
Protection Modes ..................................................................................10
Table 1. Protected Area Sizes (S25FL002D). .........................10
Table 2. Protected Area Sizes (S25FL001D). .........................10
Release from Software Protection and Read Electronic Signature
(RES), and Read ID (READ_ID) ....................................................... 24
Figure 16. Release from Software Protection and Read Electronic
Signature (RES), and Read ID (READ_ID) Instruction
Sequence........................................................................ 25
Power-up and Power-down . . . . . . . . . . . . . . . . . 26
Figure 17. Power-Up Timing............................................... 26
Table 7. Power-Up Timing ................................................. 27
Initial Delivery State . . . . . . . . . . . . . . . . . . . . . . . 27
Maximum Rating . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . 27
Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . 27
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 28
Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 18. AC Measurements I/O Waveform......................... 29
Table 8. Test Specifications ............................................... 29
Table 9. AC Characteristics ................................................ 30
Figure 19. SPI Mode 0 (0,0) Input Timing............................ 31
Figure 20. SPI Mode 0 (0,0) Output Timing.......................... 31
Figure 21. HOLD# Timing.................................................. 32
Figure 22. Write Protect Setup and Hold Timing during
Hold Condition Modes ........................................................................10
Figure 3. Hold Condition Activation...................................... 11
Memory Organization . . . . . . . . . . . . . . . . . . . . . . 12
Table 3. Sector Address Table – S25FL002D .........................12
Table 4. Sector Address Table – S25FL001D .........................12
Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 5. Instruction Set. ....................................................13
Write Enable (WREN) ..........................................................................14
Figure 4. Write Enable (WREN) Instruction Sequence............. 14
Write Disable (WRDI) ........................................................................14
Figure 5. Write Disable (WRDI) Instruction Sequence ............ 14
Read Status Register (RDSR) .............................................................14
Figure 6. Read Status Register (RDSR) Instruction Sequence.. 15
Figure 7. Status Register Format......................................... 15
WRSR when SRWD=1....................................................... 32
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . 33
S08 narrow—8-pin Plastic Small Outline 150mils
Body Width Package ............................................................................33
S08 wide—8-pin Plastic Small Outline 208mils
Body Width Package ............................................................................34
8-Contact WSON (6mm x 5mm) Leadless Package .................36
Write Status Register (WRSR) ..........................................................16
Figure 8. Write Status Register (WRSR) Instruction Sequence. 16
Table 6. Protection Modes ..................................................17
Read Data Bytes (READ) .................................................................... 17
Figure 9. Read Data Bytes (READ) Instruction Sequence ........ 18
Read Data Bytes at Higher Speed (FAST_READ) .......................18
Figure 10. Fast Read (FAST_READ) Instruction Sequence....... 19
Page Program (PP) .................................................................................19
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Block Diagram
SRAM
PS
X
D
Array - L
Array - R
E
C
Logic
RD
DATA PATH
IO
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P r e l i m i n a r y I n f o r m a t i o n
Connection Diagrams
8-contact WSON Package
8-pin Plastic Small Outline Package (SO)
V
8
7
V
8
7
1
2
CS#
SO
1
2
CS#
SO
CC
CC
HOLD#
HOLD#
6
5
SCK
SI
3
4
SCK
SI
3
4
6
5
W#
W#
GND
GND
Note:
1. 8-pin Plastic Small Outline Package (208 mils) offered for 2Mb density only.
Input/Output Descriptions
SCK
SI
SO
CS#
W#
HOLD#
=
=
=
=
=
=
=
=
Serial Clock Input
Serial Data Input
Serial Data Output
Chip Select Input
Write Protect Input
Hold Input
V
Supply Voltage Input
Ground Input
CC
GND
Logic Symbol
V
CC
SO
SI
SCK
CS#
W#
HOLD#
GND
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Ordering Information
The order number (Valid Combination) is formed by the following:
S25FL
002
D
0F 00
M
A
I
I
PACKING TYPE
1
3
=
=
Tube (standard; see Note 1)
13” Tape and Reel (Note 2)
MODEL NUMBER (Additional Ordering Options)
00
01
=
=
S0-8 Narrow (150 mils) package
S0-8 Wide (208 mils) package
TEMPERATURE RANGE
I
=
Industrial (–40
°
C to +85 C)
°
PACKAGE MATERIALS
A
F
=
=
Standard
Lead (Pb)-free (Note 2)
PACKAGE TYPE
M
N
=
=
8 pin Plastic Small Outline Package
WSON (Note 2)
SPEED
0F
=
25 MHz
DEVICE TECHNOLOGY
D
= 0.25 µm process technology
DENSITY
002
001
=
=
2 Mb
1 Mb
DEVICE FAMILY
SpansionTM Memory 3.0 Volt-only, Serial Peripheral Interface (SPI) Flash Memory
S25FL Valid Combinations
Package Marking (Note 3)
Base Ordering
Part Number
Speed
Option
Package &
Temperature
Model
Number
Packing
Type
FL002D + (Temp) + (Last Digit of Model Number)
(Note 4)
S25FL002D
S25FL001D
00, 01
00
1, 3
(Note 1)
0F
MAI, MFI, NFI
FL001D + (Temp) + (Last Digit of Model Number)
(Note 4)
Notes:
1. Type 1 is standard. Specify other options as required.
2. Contact your local sales office for availability.
3. Package marking omits leading “S25” and speed, package, and leading digit of model number from ordering part
number.
4. If “Last Digit of Model Number” is ‘2’, then this signifies a Lead (Pb)-free package. For example: FL002DI2
If “Last Digit of Model Number” is ‘0’, this signified a standard package. For example: FL002DI0.
Valid Combinations
Valid Combinations list configurations planned to be supported in volume for this device.
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Signal Description
Signal Data Output (SO): This output signal is used to transfer data serially out
of the device. Data is shifted out on the falling edge of Serial Clock (SCK).
Serial Data Input (SI): This input signal is used to transfer data serially into
the device. It receives instructions, addresses, and the data to be programmed.
Values are latched on the rising edge of Serial Clock (SCK).
Serial Clock (SCK): This input signal provides the timing of the serial interface.
Instructions, addresses, and data present at the Serial Data input (SI) are latched
on the rising edge of Serial Clock (SCK). Data on Serial Data Output (SO) changes
after the falling edge of Serial Clock (SCK).
Chip Select (CS#): When this input signal is High, the device is deselected and
Serial Data Output (SO) is at high impedance. Unless an internal Program, Erase
or Write Status Register cycle is in progress, the device will be in Standby mode.
Driving Chip Select (CS#) Low enables the device, placing it in the active power
mode.
After Power-up, a falling edge on Chip Select (CS#) is required prior to the start
of any instruction.
Hold (HOLD#): The Hold (HOLD#) signal is used to pause any serial communi-
cations with the device without deselecting the device.
During the Hold instruction, the Serial Data Output (SO) is high impedance, and
Serial Data Input (SI) and Serial Clock (SCK) are Don’t Care.
To start the Hold condition, the device must be selected, with Chip Select (CS#)
driven Low.
Write Protect (W#): The main purpose of this input signal is to freeze the size
of the area of memory that is protected against program or erase instructions (as
specified by the values in the BP1 and BP0 bits of the Status Register).
SPI Modes
These devices can be driven by a micro controller with its SPI peripheral running
in either of the two following modes:
CPOL = 0, CPHA = 0
CPOL = 1, CPHA = 1
For these two modes, input data is latched in on the rising edge of Serial Clock
(SCK), and output data is available from the falling edge of Serial Clock (SCK).
The difference between the two modes, as shown in Figure 2, is the clock polarity
when the bus master is in Standby and not transferring data:
SCK remains at 0 for (CPOL = 0, CPHA = 0)
SCK remains at 1 for (CPOL = 1, CPHA = 1)
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SO
SI
SPI Interface with
(CPOL, CPHA) =
(0, 0) or (1, 1)
SCK
SCK SO SI
SCK SO SI
SCK SO SI
Bus Master
SPI Memory
Device
SPI Memory
Device
SPI Memory
Device
CS3 CS2 CS1
CS#
W# HOLD#
CS#
W# HOLD#
CS#
W# HOLD#
Figure 1. Bus Master and Memory Devices on the SPI Bus
Note: The Write Protect (W#) and Hold (HOLD#) signals should be driven, High or Low as appropriate.
CS#
CPOL CPHA
SCK
0
1
0
1
SCK
SI
MSB
SO
MSB
Figure 2. SPI Modes Supported
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P r e l i m i n a r y I n f o r m a t i o n
Operating Features
All data into and out of the device is shifted in 8-bit chunks.
Page Programming
To program one data byte, two instructions are required: Write Enable (WREN),
which is one byte, and a Page Program (PP) sequence, which consists of four
bytes plus data. This is followed by the internal Program cycle. To spread this
overhead, the Page Program (PP) instruction allows up to 256 bytes to be pro-
grammed at a time (changing bits from 1 to 0), provided that they lie in
consecutive addresses on the same page of memory.
Sector Erase, or Bulk Erase
The Page Program (PP) instruction allows bits to be programmed from 1 to 0. Be-
fore this can be applied, the bytes of the memory need to be first erased to all
1’s (FFh) before any programming. This can be achieved in two ways: 1) a sector
at a time using the Sector Erase (SE) instruction, or 2) throughout the entire
memory, using the Bulk Erase (BE) instruction.
Polling During a Write, Program, or Erase Cycle
A further improvement in the time to Write Status Register (WRSR), Program (PP)
or Erase (SE or BE) can be achieved by not waiting for the worst-case delay. The
Write in Progress (WIP) bit is provided in the Status Register so that the applica-
tion program can monitor its value, polling it to establish when the previous Write
cycle, Program cycle, or Erase cycle is complete.
Active Power and Standby Power Modes
When Chip Select (CS#) is Low, the device is enabled, and in the Active Power
mode. When Chip Select (CS#) is High, the device is disabled, but could remain
in the Active Power mode until all internal cycles have completed (Program,
Erase, Write Status Register). The device then goes into the Standby Power
mode. The device consumption drops to I . This can be used as an extra soft-
SB
ware protection mechanism, when the device is not in active use, to protect the
device from inadvertent Write, Program, or Erase instructions.
Status Register
The Status Register contains a number of status and control bits, as shown in Fig-
ure 7, that can be read or set (as appropriate) by specific instructions
WIP bit: The Write In Progress (WIP) bit indicates whether the memory is
busy with a Write Status Register, Program or Erase cycle.
WEL bit: The Write Enable Latch (WEL) bit indicates the status of the internal
Write Enable Latch.
BP1, BP0 bits: The Block Protect (BP1, BP0) bits are non-volatile. They de-
fine the size of the area to be software protected against Program and Erase
instructions.
SRWD bit: The Status Register Write Disable (SRWD) bit is operated in con-
junction with the Write Protect (W#) signal. The Status Register Write Disable
(SRWD) bit and Write Protect (W#) signal allow the device to be put in the
Hardware Protected mode. In this mode, the non-volatile bits of the Status
Register (SRWD, BP1, BP0) become read-only bits.
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Protection Modes
The SPI memory device boasts the following data protection mechanisms:
All instructions that modify data must be preceded by a Write Enable (WREN)
instruction to set the Write Enable Latch (WEL) bit. This bit is returned to its
reset state by the following events:
— Power-up
— Write Disable (WRDI) instruction completion
— Write Status Register (WRSR) instruction completion
— Page Program (PP) instruction completion
— Sector Erase (SE) instruction completion
— Bulk Erase (BE) instruction completion
The Block Protect (BP1, BP0) bits allow part of the memory to be configured
as read-only. This is the Software Protected Mode (SPM).
The Write Protect (W#) signal works in cooperation with the Status Register
Write Disable (SRWD) bit to enable write-protection. This is the Hardware
Protected Mode (HPM).
Program, Erase and Write Status Register instructions are checked to verify
that they consist of a number of clock pulses that is a multiple of eight, before
they are accepted for execution.
Table 1. Protected Area Sizes (S25FL002D).
Protected
Memory
Area
Status Register Content
Memory Content
Unprotected Area
BP1 Bit
BP0 Bit
Protected Area
none
0%
25%
50%
100%
0
0
1
1
0
1
0
1
00000–3FFFF
00000–2FFFF
00000–1FFFF
none
30000–3FFFF
20000–3FFFF
00000–3FFFF
Table 2. Protected Area Sizes (S25FL001D).
Protected
Memory
Area
Status Register Content
Memory Content
BP1 Bit
BP0 Bit
Protected Area
none
Unprotected Area
00000–1FFFF
00000–17FFF
00000–0FFFF
none
0%
25%
50%
100%
0
0
1
1
0
1
0
1
18000–1FFFF
10000–1FFFF
00000–1FFFF
Note:The device is ready to accept a Bulk Erase (BE) instruction, if and only if, both Block Protect (BP1 and BP0) are 0.
Hold Condition Modes
The Hold (HOLD#) signal is used to pause any serial communications with the
device without resetting the clocking sequence. Hold (HOLD#) signal gates the
clock input to the device. However, taking this signal Low does not terminate any
Write Status Register, Program or Erase Cycle that is currently in progress.
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P r e l i m i n a r y I n f o r m a t i o n
To enter the Hold condition, the device must be selected, with Chip Select (CS#)
Low. The Hold condition starts on the falling edge of the Hold (HOLD#) signal,
provided that this coincides with Serial Clock (SCK) being Low (as shown in Figure
3).
The Hold condition ends on the rising edge of the Hold (HOLD#) signal, provided
that this coincides with Serial Clock (SCK) being Low.
If the falling edge does not coincide with Serial Clock (SCK) being Low, the Hold
condition starts after Serial Clock (SCK) next goes Low. Similarly, if the rising
edge does not coincide with Serial Clock (SCK) being Low, the Hold condition ends
after Serial Clock (SCK) next goes Low (Figure 3). During the Hold condition, the
Serial Data Output (SO) is high impedance, and Serial Data Input (SI) and Serial
Clock (SCK) are Don’t Care.
Normally, the device remains selected, with Chip Select (CS#) driven Low, for the
entire duration of the Hold condition. This ensures that the state of the internal
logic remains unchanged from the moment of entering the Hold condition.
Note: Driving Chip Select (CS#) high while HOLD# is still low is not a
valid operation.
SCK
HOLD#
Hold
Hold
Condition
Condition
(standard use)
(non-standard use)
Figure 3. Hold Condition Activation
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Memory Organization
The memory is organized as:
S25FL002D: Four sectors of 512 Kbit each
S25FL001D: Four sectors of 256 Kbit each
Each page can be individually programmed (bits are programmed from 1 to
0).
The device is Sector, or Bulk erasable (bits are erased from 0 to 1).
Table 3. Sector Address Table – S25FL002D
Sector
SA3
Address Range
30000h
3FFFFh
2FFFFh
1FFFFh
0FFFFh
SA2
20000h
10000h
00000h
SA1
SA0
Table 4. Sector Address Table – S25FL001D
Sector
SA3
Address Range
18000h
10000h
08000h
00000h
1FFFFh
17FFFh
0FFFFh
07FFFh
SA2
SA1
SA0
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P r e l i m i n a r y I n f o r m a t i o n
Instructions
All instructions, addresses, and data are shifted in and out of the device, starting
with the most significant bit. Serial Data Input (SI) is sampled on the first rising
edge of Serial Clock (SCK) after Chip Select (CS#) is driven Low. Then, the one-
byte instruction code must be shifted in to the device, most significant bit first,
on Serial Data Input (SI), each bit being latched on the rising edges of Serial
Clock (SCK). The instruction set is listed in Table 5.
Every instruction sequence starts with a one-byte instruction code. Depending on
the instruction, this might be followed by address bytes, or by data bytes, or by
both or none. Chip Select (CS#) must be driven High after the last bit of the in-
struction sequence has been shifted in.
In the case of a Read Data Bytes (READ), Read Status Register (RDSR), Fast Read
(FAST_READ) and Read ID (READ_ID), the shifted-in instruction sequence is fol-
lowed by a data-out sequence. Chip Select (CS#) can be driven High after any
bit of the data-out sequence is being shifted out to terminate the transaction.
In the case of a Page Program (PP), Sector Erase (SE), Bulk Erase (BE), Write
Status Register (WRSR), Write Enable (WREN), or Write Disable (WRDI) instruc-
tion, Chip Select (CS#) must be driven High exactly at a byte boundary,
otherwise the instruction is rejected, and is not executed. That is, Chip Select
(CS#) must driven High when the number of clock pulses after Chip Select (CS#)
being driven Low is an exact multiple of eight.
All attempts to access the memory array during a Write Status Register cycle,
Program cycle or Erase cycle are ignored, and the internal Write Status Register
cycle, Program cycle or Erase cycle continues unaffected
Table 5. Instruction Set.
One-Byte Instruction
Code
Address
Bytes
Dummy
Byte
Instruction
Description
Data Bytes
Status Register Operations
06H (0000 0110)
WREN
WRDI
WRSR
RDSR
Write Enable
Write Disable
0
0
0
0
0
0
0
0
0
04H (0000 0100)
0
Write to Status Register
Read from Status Register
01H (0000 0001)
1
05H (0000 0101)
1 to Infinity
Read Operations
03H (0000 0011)
READ
Read Data Bytes
3
3
0
0
1
3
1 to Infinity
1 to Infinity
1 to Infinity
FAST_READ
READ_ID
Read Data Bytes at Higher Speed
Read ID
0BH (0000 1011)
ABH (1010 1011)
Erase Operations
SE
BE
Sector Erase
D8H (1101 1000)
C7H (1100 0111)
3
0
0
0
0
0
Bulk (Chip) Erase
Program Operations
02H (0000 0010)
PP
Page Program
3
0
1 to 256
Dummy Power Savings Mode Operations
SP
Software Protect
B9H (1011 1001)
ABH (1010 1011)
0
0
0
0
0
0
Release from Software Protect
RES
Release from Software Protect and
Read Electronic Signature
ABH (1010 1011)
0
3
1 to Infinity
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Write Enable (WREN)
The Write Enable (WREN) instruction (Figure 4) sets the Write Enable Latch (WEL)
bit. The Write Enable Latch (WEL) bit must be set prior to every Page Program
(PP), Erase (SE or BE) and Write Status Register (WRSR) instruction. The Write
Enable (WREN) instruction is entered by driving Chip Select (CS#) Low, sending
the instruction code, and then driving Chip Select (CS#) High.
CS#
6
5
7
0
1
2
3
4
SCK
SI
Instruction
High Impedance
SO
Figure 4. Write Enable (WREN) Instruction Sequence
Write Disable (WRDI)
The Write Disable (WRDI) instruction (Figure 5) resets the Write Enable Latch
(WEL) bit. The Write Disable (WRDI) instruction is entered by driving Chip Select
(CS#) Low, sending the instruction code, and then driving Chip Select (CS#)
High.
The Write Enable Latch (WEL) bit is reset under the following conditions:
Power-up
Write Disable (WRDI) instruction completion
Write Status Register (WRSR) instruction completion
Page Program (PP) instruction completion
Sector Erase (SE) instruction completion
Bulk Erase (BE) instruction completion
CS#
0
3
4
7
6
1 2
5
SCK
SI
Instruction
High Impedance
SO
Figure 5. Write Disable (WRDI) Instruction Sequence
Read Status Register (RDSR)
The Read Status Register (RDSR) instruction allows the Status Register to be
read. The Status Register may be read at any time, even while a Program, Erase,
or Write Status Register cycle is in progress. When one of these cycles is in
progress, it is recommended to check the Write In Progress (WIP) bit before
14
S25FL Family (Serial Peripheral Interface)
30167A+1 June 9, 2004
P r e l i m i n a r y I n f o r m a t i o n
sending a new instruction to the device. It is also possible to read the Status Reg-
ister continuously, as shown in Figure 6.
CS#
SCK
7
0
2
3
4
5
6
9
11
15
12 13 14
1
8
10
Instruction
SI
Status Register Out
Status Register Out
High Impedance
SO
6
4
2
6
7
5
7
5
3
1
0
4
2
7
0
3
1
MSB
MSB
Figure 6. Read Status Register (RDSR) Instruction Sequence
b7
b0
SRWD
0
0
BP1
BP0 WEL
WIP
Status Register Write Disable
Block Protect Bits
Write Enable Latch Bit
Write In Progress Bit
Figure 7. Status Register Format
The status and control bits of the Status Register are as follows:
SRWD bit: The Status Register Write Disable (SRWD) bit is operated in conjunc-
tion with the Write Protect (W#) signal. The Status Register Write Disable
(SRWD) bit and Write Protect (W#) signal allow the device to be put in the Hard-
ware Protected mode (when the Status Register Write Disable (SRWD) bit is set
to 1, and Write Protect (W#) is driven Low). In this mode, the non-volatile bits
of the Status Register (SRWD, BP1, BP0) become read-only bits and the Write
Status Register (WRSR) instruction is no longer accepted for execution.
BP1, BP0 bits: The Block Protect (BP1, BP0) bits are non-volatile. They define
the size of the area to be software protected against Program and Erase instruc-
tions. These bits are written with the Write Status Register (WRSR) instruction.
When one or both of the Block Protect (BP1, BP0) bits is set to 1, the relevant
memory area (as defined in Table 1 and Table 2) becomes protected against Page
Program (PP), and Sector Erase (SE) instructions. The Block Protect (BP1, BP0)
bits can be written provided that the Hardware Protected mode has not been set.
The Bulk Erase (BE) instruction is executed if, and only if, both Block Protect (BP1,
BP0) bits are 0.
WEL bit: The Write Enable Latch (WEL) bit indicates the status of the internal
Write Enable Latch. When set to 1, the internal Write Enable Latch is set; when
set to 0, the internal Write Enable Latch is reset and no Write Status Register, Pro-
gram or Erase instruction is accepted.
June 9, 2004 30167A+1
S25FL Family (Serial Peripheral Interface)
15
P r e l i m i n a r y I n f o r m a t i o n
WIP bit: The Write In Progress (WIP) bit indicates whether the memory is busy
with a Write Status Register, Program or Erase cycle. This bit is a read only bit
and is read by executing a RDSR instruction. If this bit is 1, such a cycle is in
progress, if it is 0, no such cycle is in progress.
Write Status Register (WRSR)
The Write Status Register (WRSR) instruction allows new values to be written to
the Status Register. Before it can be accepted, a Write Enable (WREN) instruction
must previously have been executed. After the Write Enable (WREN) instruction
has been decoded and executed, the device sets the Write Enable Latch (WEL).
The Write Status Register (WRSR) instruction is entered by driving Chip Select
(CS#) Low, followed by the instruction code and the data byte on Serial Data
Input (SI).
The instruction sequence is shown in Figure 8.
The Write Status Register (WRSR) instruction has no effect on bits b6, b5, b4, b1
and b0 of the Status Register. Bits b6, b5 and b4 are always read as 0.
Chip Select (CS#) must be driven High after the eighth bit of the data byte has
been latched in. If not, the Write Status Register (WRSR) instruction is not exe-
cuted. As soon as Chip Select (CS#) is driven High, the self-timed Write Status
Register cycle (whose duration is t ) is initiated. While the Write Status Register
W
cycle is in progress, the Status Register may still be read to check the value of
the Write In Progress (WIP) bit. The Write In Progress (WIP) bit is 1 during the
self-timed Write Status Register cycle, and is 0 when it is completed. At some un-
specified time before the cycle is completed, the Write Enable Latch (WEL) is
reset.
The Write Status Register (WRSR) instruction allows the user to change the val-
ues of the Block Protect (BP1, BP0) bits, to define the size of the area that is to
be treated as read-only, as defined in Table 1 and Table 2. The Write Status Reg-
ister (WRSR) instruction also allows the user to set or reset the Status Register
Write Disable (SRWD) bit in accordance with the Write Protect (W#) signal. The
Status Register Write Disable (SRWD) bit and Write Protect (W#) signal allow the
device to be put in the Hardware Protected Mode (HPM). The Write Status Regis-
ter (WRSR) instruction cannot be executed once the Hardware Protected Mode
(HPM) is entered.
CS#
8
9
10
12 13 14 15
11
4 6
5
7
0
1
2
3
SCK
Status
Register In
Instruction
SI
MSB
High Impedance
SO
Figure 8. Write Status Register (WRSR) Instruction Sequence
16
S25FL Family (Serial Peripheral Interface)
30167A+1 June 9, 2004
P r e l i m i n a r y I n f o r m a t i o n
Table 6. Protection Modes
Write Protection of the Status
Protected Area
(Note 1)
Unprotected Area
(Note 1)
W# Signal SRWD Bit
Mode
Register
1
1
1
0
Status Register is Writeable (if the
WREN instruction has set the WEL ProtectedagainstPage Ready to accept Page
Protected bit)
Software
Program and Erase
(SE, BE)
Program and Sector
Erase Instructions
(SPM)
The values in the SRWD, BP1 and
BP0 bits can be changed
0
0
Status Register is Hardware write
protected
The values in the SRWD, BP1 and
BP0 bits cannot be changed
Hardware
Protected
(HPM)
ProtectedagainstPage Ready to accept Page
0
1
Program and Erase
(SE, BE)
Program and Sector
Erase Instructions
5. As defined by the values in the Block Protect (BP1, BP0) bits of the Status Register, as shown in Table 1 and
Table 2.
The protection features of the device are summarized in Table 6.
When the Status Register Write Disable (SRWD) bit of the Status Register is 0 (its
initial delivery state), it is possible to write to the Status Register provided that
the Write Enable Latch (WEL) bit has previously been set by a Write Enable
(WREN) instruction, regardless of the whether Write Protect (W#) is driven High
or Low.
When the Status Register Write Disable (SRWD) bit of the Status Register is set
to 1, two cases need to be considered, depending on the state of Write Protect
(W#):
If Write Protect (W#) is driven High, it is possible to write to the Status Reg-
ister provided that the Write Enable Latch (WEL) bit has previously been set
by a Write Enable (WREN) instruction.
If Write Protect (W#) is driven Low, it is not possible to write to the Status
Register even if the Write Enable Latch (WEL) bit has previously been set by
a Write Enable (WREN) instruction. (Attempts to write to the Status Register
are rejected, and are not accepted for execution). As a consequence, all the
data bytes in the memory area that are software protected (SPM) by the
Block Protect (BP1, BP0) bits of the Status Register, are also hardware pro-
tected against data modification.
Regardless of the order of the two events, the Hardware Protected Mode (HPM)
can be entered:
by setting the Status Register Write Disable (SRWD) bit after driving Write
Protect (W#) Low
or by driving Write Protect (W#) Low after setting the Status Register Write
Disable (SRWD) bit.
The only way to exit the Hardware Protected Mode (HPM) once entered is to pull
Write Protect (W#) High.
If Write Protect (W#) is permanently tied High, the Hardware Protected Mode
(HPM) can never be activated, and only the Software Protected Mode (SPM),
using the Block Protect (BP1, BP0) bits of the Status Register, can be used.
Read Data Bytes (READ)
The device is first selected by driving Chip Select (CS#) Low. The instruction code
for the Read Data Bytes (READ) instruction is followed by a 3-byte address (ad-
dress bits A23 to A18 are Don’t Care), each bit being latched-in during the rising
edge of Serial Clock (SCK). Then the memory contents, at that address, are
June 9, 2004 30167A+1
S25FL Family (Serial Peripheral Interface)
17
P r e l i m i n a r y I n f o r m a t i o n
shifted out on Serial Data Output (SO), each bit being shifted out, at a frequency
f
, during the falling edge of Serial Clock (SCK).
SCK
The instruction sequence is shown in Figure 9. The first byte addressed can be at
any location. The address is automatically incremented to the next higher ad-
dress after each byte of data is shifted out. The whole memory can, therefore, be
read with a single Read Data Bytes (READ) instruction. When the highest address
is reached, the address counter rolls over to 00000h, allowing the read sequence
to be continued indefinitely.
The Read Data Bytes (READ) instruction is terminated by driving Chip Select
(CS#) High. Chip Select (CS#) can be driven High at any time during data output.
Any Read Data Bytes (READ) instruction, while a Program, Erase, or Write cycle
is in progress, is rejected without having any effect on the cycle that is in
progress.
CS#
0
1
2
3
4
5
6
7
8
9
10
28 23 30 31 32 33 34 35 36 37 38 39
SCK
Instruction
24-Bit Address
2
0
1
22
23
21
3
SI
MSB
Data Out 1
Data Out 2
High Impedance
SO
6
4
2
7
0
7
5
3
1
MSB
Figure 9. Read Data Bytes (READ) Instruction Sequence
Read Data Bytes at Higher Speed (FAST_READ)
The Fast Read (FAST_READ) instruction implemented in this device is compatible
with industry standard Fast Read (FAST_READ) operations. The device is first se-
lected by driving Chip Select (CS#) Low. The instruction code for (FAST_READ)
instruction is followed by a 3-byte address (A23-A0 for 2Mbit devices) and a
dummy byte, each bit being latched-in during the rising edge of Serial Clock
(SCK). Then the memory contents, at that address, are shifted out on Serial Data
Output (SO), each bit being shifted out, at a maximum frequency F
the falling edge of Serial Clock (SCK).
, during
SCK
The instruction sequence is shown in Figure 10. The first byte addressed can be
at any location. The address is automatically incremented to the next higher ad-
dress after each byte of data is shifted out. The whole memory can, therefore, be
read with a single (FAST_READ) instruction. When the highest address is
reached, the address counter rolls over to 00000h, allowing the read sequence to
be continued indefinitely.
The (FAST_READ) instruction is terminated by driving Chip Select (CS#) High.
Chip Select (CS#) can be driven High at any time during data output. Any
18
S25FL Family (Serial Peripheral Interface)
30167A+1 June 9, 2004
P r e l i m i n a r y I n f o r m a t i o n
(FAST_READ) instruction, while an Erase, Program or Write cycle is in progress,
is rejected without having any effects on the cycle that is in progress.
CS#
SCK
33
0
1
2
5
6
7
8
9
29 30
32
38 39 40 41
44 45 46
31
34 35 36 37
Dummy Byte
3
4
10
28
42 43
47
24-Bit
Instruction
Address
23
3
2
22 21
1
0
6
5
4
2
0
1
7
3
SI
DATA OUT 1
DATA OUT 2
High Impedance
3
7
6
4
2
1
0
5
7
SO
MSB
MSB
Figure 10. Fast Read (FAST_READ) Instruction Sequence
Page Program (PP)
The Page Program (PP) instruction allows bytes to be programmed in the memory
(changing bits from 1 to 0). Before it can be accepted, a Write Enable (WREN)
instruction must previously have been executed. After the Write Enable (WREN)
instruction has been decoded, the device sets the Write Enable Latch (WEL).
The Page Program (PP) instruction is entered by driving Chip Select (CS#) Low,
followed by the instruction code, three address bytes and at least one data byte
on Serial Data Input (SI). Chip Select (CS#) must be driven Low for the entire
duration of the sequence.
The instruction sequence is shown in Figure 11.
If more than 256 bytes are sent to the device, the addressing will wrap to the
beginning of the same page, previously latched data are discarded and the last
256 data bytes are guaranteed to be programmed correctly within the same
page. If fewer than 256 Data bytes are sent to device, they are correctly pro-
grammed at the requested addresses without having any effects on the other
bytes of the same page.
Chip Select (CS#) must be driven High after the eighth bit of the last data byte
has been latched in, otherwise the Page Program (PP) instruction is not executed.
As soon as Chip Select (CS#) is driven High, the self-timed Page Program cycle
(whose duration is t ) is initiated. While the Page Program cycle is in progress,
PP
the Status Register may be read to check the value of the Write In Progress (WIP)
bit. The Write In Progress (WIP) bit is 1 during the self-timed Page Program cycle,
and is 0 when it is completed. At some unspecified time before the cycle is com-
pleted, the Write Enable Latch (WEL) bit is reset.
A Page Program (PP) instruction applied to a page that is protected by the Block
Protect (BP1, BP0) bits (see Table 1 and Table 2) is not executed.
June 9, 2004 30167A+1
S25FL Family (Serial Peripheral Interface)
19
P r e l i m i n a r y I n f o r m a t i o n
CS#
SCK
5
8
9
34
3738 39
3536
0
2
4
6
7
10
28 32 33
293031
1
3
24-Bit Address
Data Byte 1
Instruction
4
3
2
22 21
3
2
1
0
7
6
5
1
0
23
SI
MSB
MSB
CS#
SCK
5354 55
52
4950 51
46
40
44 45
4748
414243
Data Byte 2
Data Byte 3
Data Byte 256
0
7
6
0
7
7
6
5
4
3
2
1
0
6
5
4
3
2
1
5
4
3
2
1
SI
MSB
MSB
MSB
Figure 11. Page Program (PP) Instruction Sequence
Sector Erase (SE)
The Sector Erase (SE) instruction sets to 1 (FFh) all bits inside the chosen sector.
Before it can be accepted, a Write Enable (WREN) instruction must previously
have been executed. After the Write Enable (WREN) instruction has been de-
coded, the device sets the Write Enable Latch (WEL).
The Sector Erase (SE) instruction is entered by driving Chip Select (CS#) Low,
followed by the instruction code, and three address bytes on Serial Data Input
(SI). Any address inside the Sector (see Table 1 and Table 2) is a valid address
for the Sector Erase (SE) instruction. Chip Select (CS#) must be driven Low for
the entire duration of the sequence.
The instruction sequence is shown in Figure 12.
Chip Select (CS#) must be driven High after the eighth bit of the last address byte
has been latched in, otherwise the Sector Erase (SE) instruction is not executed.
As soon as Chip Select (CS#) is driven High, the self-timed Sector Erase cycle
(whose duration is tSE) is initiated. While the Sector Erase cycle is in progress,
the Status Register may be read to check the value of the Write In Progress (WIP)
bit. The Write In Progress (WIP) bit is 1 during the self-timed Sector Erase cycle,
and is 0 when it is completed. At some unspecified time before the cycle is com-
pleted, the Write Enable Latch (WEL) bit is reset.
A Sector Erase (SE) instruction applied to any memory area that is protected by
the Block Protect (BP1, BP0) bits (see Table 1 and Table 2) is not executed.
20
S25FL Family (Serial Peripheral Interface)
30167A+1 June 9, 2004
P r e l i m i n a r y I n f o r m a t i o n
CS#
SCK
0
1
2
3
4
5
6
7
8
9
10
28 29 30 31
Instruction
24 Bit Address
1
SI
23 22 21
MSB
Figure 12. Sector Erase (SE) Instruction Sequence
3
2
0
Bulk Erase (BE)
The Bulk Erase (BE) instruction sets to 1 (FFh) all bits inside the entire memory.
Before it can be accepted, a Write Enable (WREN) instruction must previously
have been executed. After the Write Enable (WREN) instruction has been de-
coded, the device sets the Write Enable Latch (WEL).
The Bulk Erase (BE) instruction is entered by driving Chip Select (CS#) Low, fol-
lowed by the instruction code, on Serial Data Input (SI). No address is required
for the Bulk Erase (BE) instruction. Chip Select (CS#) must be driven Low for the
entire duration of the sequence.
The instruction sequence is shown in Figure 13.
Chip Select (CS#) must be driven High after the eighth bit of the last address byte
has been latched in, otherwise the Bulk Erase (BE) instruction is not executed.
As soon as Chip Select (CS#) is driven High, the self-timed Bulk Erase cycle
(whose duration is t ) is initiated. While the Bulk Erase cycle is in progress, the
BE
Status Register may be read to check the value of the Write In Progress (WIP)
bit. The Write In Progress (WIP) bit is 1 during the self-timed Bulk Erase cycle,
and is 0 when it is completed. At some unspecified time before the cycle is com-
pleted, the Write Enable Latch (WEL) bit is reset.
A Bulk Erase (BE) instruction is executed only if both the Block Protect (BP1, BP0)
bits (see Table 1 and Table 2) are set to 0. The Bulk Erase (BE) instruction is ig-
nored if one or more sectors are protected.
June 9, 2004 30167A+1
S25FL Family (Serial Peripheral Interface)
21
P r e l i m i n a r y I n f o r m a t i o n
CS#
SCK
SI
0
1
2
3
4
5
6
7
Instruction
Figure 13. Bulk Erase (BE) Instruction Sequence
Software Protect (SP)
The Software Protect (SP) instruction implemented in this device is compatible
with industry-standard Software Protect (SP) operation. For this device, this in-
struction has no real function since the Standby Current (I ) on this device is
SB
the same as the Deep Power-down Current in our competitor's devices.
It is recommended that the standard Standby mode be used for the lowest power
current draw, as well as the Software Protect (SP) as an extra software protection
mechanism when this device is not in active use. In this mode, the device ignores
all Write, Program and Erase instructions. Chip Select (CS#) must be driven Low
for the entire duration of the sequence.
The Software Protect (SP) instruction is entered by driving Chip Select (CS#)
Low, followed by the instruction code on Serial Data Input (SI). Chip Select (CS#)
must be driven Low for the entire duration of the sequence.
The instruction sequence is shown in Figure 14.
Driving Chip Select (CS#) High after the eighth bit of the instruction code has
been latched in deselects the device, and puts the device in the Standby mode (if
there is no internal cycle currently in progress). As soon as Chip Select (CS#) is
driven high, it requires a delay of t currently in progress before Software Pro-
SP
tect mode is entered.
Once the device has entered the Software Protect mode, all instructions are ig-
nored except the Release from Software Protect (RES) or Read ID (READ_ID)
instruction. The Release from Software Protect and Read Electronic Signature
(RES) instruction also allows the Electronic Signature of the device to be output
on Serial Data Output (SO).
The Software Protect mode automatically stops at Power-down, and the device
always Powers-up in the Standby mode.
22
S25FL Family (Serial Peripheral Interface)
30167A+1 June 9, 2004
P r e l i m i n a r y I n f o r m a t i o n
Any Software Protect (SP) instruction, while an Erase, Program or WRSR cycle is
in progress, is rejected without having any effect on the cycle in progress.
CS#
t
SP
0
1
2
3
4
5
6
7
SCK
SI
Instruction
Standby Mode
Software Protect Mode
Figure 14. Software Protection (SP) Instruction Sequence
Release from Software Protect (RES)
The Release from Software Protect (RES) instruction provides the only way to exit
the Software Protect mode. Once the device has entered the Software Protect
mode, all instructions are ignored except the Release from Software Protect
(RES) instruction.
The Release from Software Protect (RES) instruction is entered by driving Chip
Select (CS#) Low, followed by the instruction code on Serial Data Input (SI). Chip
Select (CS#) must be driven Low for the entire duration of the sequence.
The instruction sequence is shown in Figure 15.
Driving Chip Select (CS#) High after the 8-bit instruction byte has been received
by the device, but before the whole of the 8-bit Electronic Signature has been
transmitted for the first time, still insures that the device is put into Standby
mode. If the device was previously in the Software Protect mode, though, the
transition to the Stand-by Power mode is delayed by t
, and Chip Select (CS#)
RES
must remain High for at least t
, as specified in Table 7. Once in the Stand-
RES(max)
by Power mode, the device waits to be selected, so that it can receive, decode
and execute instructions.
June 9, 2004 30167A+1
S25FL Family (Serial Peripheral Interface)
23
P r e l i m i n a r y I n f o r m a t i o n
CS#
7
0
2
3
5
1
4
6
SCK
t
RES
Instruction
SI
Standby Mode
Software Protect Mode
Figure 15. Release from Software Protect (RES) Instruction Sequence
Release from Software Protection and Read Electronic Signature (RES),
and Read ID (READ_ID)
Once the device has entered SP mode, all instructions are ignored except the RES
instruction. The RES instruction can also be used to read the 8-bit Electronic Sig-
nature of the device on the SO pin. The RES instruction always provides access
to the Electronic Signature of the device (except while an Erase, Program or
WRSR cycle is in progress), and can be applied even if SP mode has not been en-
tered. Any RES instruction executed while an Erase, Program or WRSR cycle is in
progress is not decoded, and has no effect on the cycle in progress.
The Read ID (READ_ID) instruction can be used to read, on Serial Data Output
(SO), the 8-bit Electronic Signature of the device.
Except while an Erase, Program or Write Status Register cycle is in progress, the
Read ID (READ_ID) instruction always provides access to the Electronic Signa-
ture of the device, and can be applied even if the Software Protect mode has not
been entered.
Any Read ID (READ_ID) instruction while an Erase, Program or Write Status Reg-
ister cycle is in progress, is not decoded, and has no effect on the cycle that is in
progress.
The device features an 8-bit Electronic Signature, whose value for the S25FL002D
is 11h, S25FL002D is 10h. This can be read using Read ID (READ_ID) instruction.
The device is first selected by driving Chip Select (CS#) Low. The instruction code
is followed by 3 dummy bytes, each bit being latched-in on Serial Data Input (SI)
during the rising edge of Serial Clock (SCK). Then, the 8-bit Electronic Signature,
stored in the memory, is shifted out on Serial Data Output (SO), each bit being
shifted out during the falling edge of Serial Clock (SCK).
The instruction sequence is shown in Figure 16.
The Read ID (READ_ID) instruction is terminated by driving Chip Select (CS#)
High after the Electronic Signature has been read at least once. Sending addi-
24
S25FL Family (Serial Peripheral Interface)
30167A+1 June 9, 2004
P r e l i m i n a r y I n f o r m a t i o n
tional clock cycles on Serial Clock (SCK), while Chip Select (CS#) is driven Low,
causes the Electronic Signature to be output repeatedly.
When Chip Select (CS#) is driven High, the device is put in the Stand-by Power
mode. If the device was not previously in the Software Protect mode, which oc-
curs when the Read ID (READ_ID) instruction is initiated, the transition to the
Stand-by Power mode is immediate. If the device was previously in the Software
Protect mode, though, the transition to the Standby mode is delayed by t
, and
RES
Chip Select (CS#) must remain High for at least t
, as specified in Table
RES(max)
9. Once in the Stand-by Power mode, the device waits to be selected, so that it
can receive, decode and execute instructions.
CS#
SCK
2
28 29 30
31 32 33 34
1
8
36 37
35 38
9
0
3
4
5
6
7
10
t
3 Dummy
Bytes
RES
Instruction
SI
3
1
0
2
23 22
MSB
21
Electronic ID out
High Impedance
7
6
5
4
3
2
1
SO
0
MSB
Standby Mode
Software Protect Mode
Figure 16. Release from Software Protection and Read Electronic Signature (RES), and Read ID (READ_ID)
Instruction Sequence
June 9, 2004 30167A+1
S25FL Family (Serial Peripheral Interface)
25
P r e l i m i n a r y I n f o r m a t i o n
Power-up and Power-down
The device must not be selected at power-up or power-down (that is, CS# must
follow the voltage applied on V ) until V reaches the minimum correct value,
CC
CC
as follows:
V
(min) at power-up, and then for a further delay of t (as described in
CC PU
Table 7)
V
at power-down
SS
A simple pull-up resistor on Chip Select (CS#) can usually be used to insure safe
and proper power-up and power-down. To avoid data corruption and inadvertent
write operations during power up, a Power On Reset (POR) circuit is included. The
logic inside the device is held reset while V is less than the POR threshold value
CC
(V
). All operations are disabled, and the device does not respond to any
POR
instructions.
The device ignores all instructions until a time delay of t (as described in Table
PU
7) has elapsed after the moment that V rises above the minimum V thresh-
CC
CC
old. However, correct operation of the device is not guaranteed if by this time V
CC
is still below V (min). No Read, Write Status Register, Program or Erase instruc-
CC
tions should be sent until t after V reaches the minimum V threshold.
PU
CC
CC
At power-up, the device is in Standby mode (not Software Protect mode) and the
WEL bit is reset.
Normal precautions must be taken for supply rail decoupling to stabilize the V
CC
feed. Each device in a system should have the V rail decoupled by a suitable
CC
capacitor close to the package pins (this capacitor is generally of the order of 0.1
µF).
At power-down, when V drops from the operating voltage to below the mini-
CC
mum V threshold, all operations are disabled and the device does not respond
CC
to any instructions. (The designer needs to be aware that if a power-down occurs
while a Write, Program or Erase cycle is in progress, data corruption can result.)
*Note:
CC
Program, Erase, and Write Commands are not allowed and are not recommended during this period,
as the state of the device operation is unknown during t
PU.
V
V
(max)
CC
*Note
V
(min)
CC
Reset State of the Device
t
Device fully
accessible
PU
V
POR
time
Figure 17. Power-Up Timing
26
S25FL Family (Serial Peripheral Interface)
30167A+1 June 9, 2004
P r e l i m i n a r y I n f o r m a t i o n
Table 7. Power-Up Timing
Symbol
Parameter
(min) to CS# Low
Min
2
Max
Unit
ms
V
t
V
CC
PU
V
POR Threshold Value
2.2
2.4
POR
Initial Delivery State
The device is delivered with all bits set to 1 (each byte contains FFh). The Status
Register contains 00h (all Status Register bits are 0).
Maximum Rating
Stressing the device above the rating listed in the Absolute Maximum Ratings
section below may cause permanent damage to the device. These are stress rat-
ings only and operation of the device at these or any other conditions above those
indicated in the Operating sections of this specification is not implied. Exposure
to Absolute Maximum Rating conditions for extended periods may affect device
reliability
Absolute Maximum Ratings
Ambient Storage Temperature . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Voltage with Respect to Ground:
All Inputs and I/Os. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V to 4.5 V
Operating Ranges
Ambient Operating Temperature (T )
A
Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C
Positive Power Supply
Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.7 V to 3.6 V
Operating ranges define those limits between which functionality of the device is guaranteed.
June 9, 2004 30167A+1
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P r e l i m i n a r y I n f o r m a t i o n
DC Characteristics
This section summarizes the DC and AC Characteristics of the device. Designers
should check that the operating conditions in their circuit match the measure-
ment conditions specified in the Test Specifications in Table 8, when relying on
the quoted parameters.
CMOS Compatible
Parameter Description
Supply Voltage
Test Conditions (Note 1)
Min
Typ.
Max
Unit
V
2.7
3
3.6
V
CC
SCK = 0.1 V /0.9V
25 MHz
= 3.0V
CC
CC
I
V
Active Read Current
9
12
mA
CC1
CC
V
CC
I
I
I
I
V
V
V
V
Active Page Program Current CS# = V
10
16
20
20
20
3
mA
mA
mA
mA
µA
µA
µA
V
CC2
CC3
CC4
CC5
CC
CC
CC
CC
CC
CC
CC
CC
Active WRSR Current
CS# = V
CS# = V
CS# = V
Active Sector Erase Current
Active Bulk Erase Current
I
Standby Current
CS# = V = 3.0 V
1
SB
CC
I
Input Leakage Current
Output Leakage Current
Input Low Voltage
V
V
= GND to V
= GND to V
1
LI
IN
IN
CC
CC
I
1
LO
V
–0.3
0.3 V
CC
IL
V
Input High Voltage
Output Low Voltage
Output High Voltage
0.7 V
V
+ 0.5
V
IH
CC
CC
V
I
I
= 1.6 mA, V = V
CC CC min
0.4
V
OL
OH
OL
V
= –0.1 mA
V
– 0.2
V
OH
CC
Note:
1. Typical values are at TA = 25°C and 3.0 V.
28
S25FL Family (Serial Peripheral Interface)
30167A+1 June 9, 2004
P r e l i m i n a r y I n f o r m a t i o n
Test Conditions
Input and Output
Timing Reference levels
Input Levels
0.8 V
CC
0.7 V
CC
0.3 V
CC
0.2 V
CC
Figure 18. AC Measurements I/O Waveform
Table 8. Test Specifications
Symbol
Parameter
Load Capacitance
Min
Max
Unit
pF
C
30
L
Input Rise and Fall Times
Input Pulse Voltage
5
ns
0.2 V to 0.8 V
V
CC
CC
Input and Output Timing
Reference Voltages
0.3 V to 0.7 V
V
CC
CC
June 9, 2004 30167A+1
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29
P r e l i m i n a r y I n f o r m a t i o n
AC Characteristics
Table 9. AC Characteristics
Symbol
Parameter
Min
Typ
Max
Unit
MHz
V/ns
V/ns
ns
F
(Note 4) SCK Clock Frequency
25
SCK
t
Clock Rise Time (Slew Rate)
Clock Fall Time (Slew Rate)
SCK High Time
0.1
0.1
18
CRT
t
CFT
t
WH
t
SCK Low Time
18
ns
WL
t
CS# High Time
100
10
ns
CS
t
(Note 3) CS# Setup Time
(Note 3) CS# HOLD Time
(Note 3) HOLD# Setup Time
(Note 3) HOLD# Hold Time
ns
CSS
t
10
ns
CSH
t
10
ns
HD
t
10
ns
CD
HOLD Setup Time (relative to
SCK)
t
10
10
ns
ns
HC
CH
HOLD Hold Time (relative to
SCK)
t
t
Output Valid
0
0
5
5
15
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
t
Output Hold Time
Data in Hold Time
Data in Setup Time
HO
t
t
HD:DAT
SU:DAT
t
(Note 3) HOLD# to Output Low Z
(Note 3) HOLD# to Output High Z
(Note 3) Output Disable Time
(Note 3) Write Protect Setup Time
(Note 3) Write Protect Hold Time
15
20
15
LZ
HZ
t
t
DIS
t
20
WPS
WPH
t
100
t
Release SP Mode
1.0
3.0
µ
s
RES
CS# High to Software Protect
Mode
t
µs
SP
t
Write Status Register Time
1.6
15 (Note 2)
10 (Note 2)
ms
ms
W
t
(Note 1) Page Programming Time
6 (Note 1)
PP
512 Kb Sector
(S25FL002D)
0.5 (Note 1) 0.8 (Note 2)
0.25 (Note 1) 0.4 (Note 2)
1.0 (Note 1) 1.6 (Note 2)
2.0 (Note 1) 3.2 (Note 2)
sec
sec
t
t
Sector Erase Time
Bulk Erase Time
SE
BE
256 Kb Sector
(S25FL001D)
1 Mb
device
sec
2 Mb
device
Note:
1. Typical program and erase time assume the following conditions: 25°C, V = 3.0V; 10,000 cycles; checkerboard data
CC
pattern.
2. Under worst-case conditions of 90°C; V
3. Not 100% tested
= 2.7V; 100,000 cycles.
CC
4. Both for READ and FAST_READ
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S25FL Family (Serial Peripheral Interface)
30167A+1 June 9, 2004
P r e l i m i n a r y I n f o r m a t i o n
AC Characteristics
tCS
CS#
tCSS
tCSS
tCSH
tCSH
SCK
tCRT
tSU:DAT
tHD:DAT
tCFT
SI
MSB IN
LSB IN
High Impedance
SO
Figure 19. SPI Mode 0 (0,0) Input Timing
CS#
tWH
SCK
tV
tV
tWL
tDIS
tHO
tHO
SO
LSB OUT
Figure 20. SPI Mode 0 (0,0) Output Timing
June 9, 2004 30167A+1
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P r e l i m i n a r y I n f o r m a t i o n
AC Characteristics
CS#
tHC
tHD
tCH
SCK
tCD
tHZ
tLZ
SO
SI
HOLD#
Figure 21. HOLD# Timing
W#
tWPH
tWPS
CS#
SCK
SI
High Impedance
SO
Figure 22. Write Protect Setup and Hold Timing during WRSR when SRWD=1
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S25FL Family (Serial Peripheral Interface)
30167A+1 June 9, 2004
P r e l i m i n a r y I n f o r m a t i o n
Physical Dimensions
S08 narrow—8-pin Plastic Small Outline 150mils Body Width Package
June 9, 2004 30167A+1
S25FL Family (Serial Peripheral Interface)
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P r e l i m i n a r y I n f o r m a t i o n
Physical Dimensions
S08 wide—8-pin Plastic Small Outline 208mils Body Width Package
34
S25FL Family (Serial Peripheral Interface)
30167A+1 June 9, 2004
P r e l i m i n a r y I n f o r m a t i o n
S08 wide—8-pin Plastic Small Outline 208mils Body Width Package (Continued)
Design Note:
This note is for the S25FL002D device only.
It is recommended that during PCB Layout, pads be placed on the board to ac-
commodate both Spansion’s SO-8 narrow and wide footprints. This will allow for
a smooth upgrade path to our 4Mb and 8Mb SPI devices, without the need to re-
layout the board.
In order to simplify layout, only one set of pads needs to be added to the board
to accommodate the 208 mils SO-8 wide package. Because the pinouts of both
the narrow and wide footprint parts are the same, no jumpers need to be placed
on the board.
June 9, 2004 30167A+1
S25FL Family (Serial Peripheral Interface)
35
P r e l i m i n a r y I n f o r m a t i o n
Physical Dimensions
8-Contact WSON (6mm x 5mm) Leadless Package
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S25FL Family (Serial Peripheral Interface)
30167A+1 June 9, 2004
P r e l i m i n a r y I n f o r m a t i o n
Revision Summary
Revision A (November 7, 2003)
Initial release.
Revision A+1 (June 9, 2004)
Minor corrections, updated 8-pin SOIC package diagram.
Updated notes for Table 9. AC Characteristics.
Removed 512Kb offering.
Removed Page Erase (PE) Functionality.
Added the wide 8-pin SO (208mils) package.
Added design note for 2Mb.
Added the 8-Contact WSON (6mm x 5mm) leadless package.
June 9, 2004 30167A+1
S25FL Family (Serial Peripheral Interface)
37
P r e l i m i n a r y I n f o r m a t i o n
Trademarks and Notice
The contents of this document are subject to change without notice. This document may contain information on a Spansion product under development by
FASL LLC. FASL LLC reserves the right to change or discontinue work on any product without notice. The information in this document is provided as is
without warranty or guarantee of any kind as to its accuracy, completeness, operability, fitness for particular purpose, merchantability, non-infringement of
third-party rights, or any other warranty, express, implied, or statutory. FASL LLC assumes no liability for any damages of any kind arising out of the use of
the information in this document.
Copyright © 2004 FASL LLC. All rights reserved.
Spansion, the Spansion logo, MirrorBit, combinations thereof, and ExpressFlash are trademarks of FASL LLC. Other company and product names used in this
publication are for identification purposes only and may be trademarks of their respective companies.
38
S25FL Family (Serial Peripheral Interface)
30167A+1 June 9, 2004
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