NV25256DWHFT3G [ONSEMI]

EEPROM Serial 256-Kb SPI - Automotive Grade 0 (+150°C);
NV25256DWHFT3G
型号: NV25256DWHFT3G
厂家: ONSEMI    ONSEMI
描述:

EEPROM Serial 256-Kb SPI - Automotive Grade 0 (+150°C)

可编程只读存储器 电动程控只读存储器 电可擦编程只读存储器
文件: 总13页 (文件大小:314K)
中文:  中文翻译
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DATA SHEET  
www.onsemi.com  
EEPROM Serial 128/256 kb  
SPI Automotive Grade 0  
SOIC8  
DW SUFFIX  
CASE 751BD  
TSSOP8  
DT SUFFIX  
CASE 948AL  
NV25128, NV25256  
Description  
PIN CONFIGURATION  
NV25128, NV25256 are EEPROM Serial 128/256 kb SPI  
Automotive Grade 0 devices internally organized as 16K/32Kx8 bits.  
It features a 64byte page write buffer and supports the Serial  
Peripheral Interface (SPI) protocol. The device is enabled through a  
Chip Select (CS) input. In addition, the required bus signals are clock  
input (SCK), data input (SI) and data output (SO) lines. The HOLD  
input may be used to pause any serial communication with the  
NV25xxx device. The device features software and hardware write  
protection, including partial as well as full array protection. Byte  
Level OnChip ECC (Error Correction Code) makes the device  
suitable for high reliability applications. The device offers an  
additional Identification Page which can be permanently write  
protected.  
1
CS  
SO  
WP  
V
CC  
HOLD  
SCK  
SI  
V
SS  
SOIC (DW), TSSOP (DT)  
V
CC  
SI  
CS  
NV25xxx  
SO  
WP  
Features  
HOLD  
SCK  
Automotive AECQ100 Grade 0 (40°C to +150°C) Qualified  
2.5 V to 5.5 V Supply Voltage Range  
10 MHz SPI Compatible  
V
SS  
SPI Modes (0,0) & (1,1)  
Figure 1. Functional Symbol  
64byte Page Write Buffer  
Selftimed Write Cycle  
PIN FUNCTION  
Hardware and Software Protection  
Additional Identification Page with Permanent Write Protection  
Pin Name  
Function  
Chip Select  
CS  
SO  
WP  
NV Prefix for Automotive and Other Applications Requiring Site and  
Serial Data Output  
Write Protect  
Change Control  
Block Write Protection  
1
1
Protect / , / or Entire EEPROM Array  
V
SS  
Ground  
4
2
Low Power CMOS Technology  
SI  
Serial Data Input  
Serial Clock  
Program/Erase Cycles:  
4,000,000 at 25°C  
1,200,000 at +85°C  
600,000 at +125°C  
300,000 at +150°C  
SCK  
HOLD  
Hold Transmission Input  
Power Supply  
V
CC  
200 Year Data Retention  
ORDERING INFORMATION  
See detailed ordering and shipping information on page 10 of  
this data sheet.  
SOIC, TSSOP 8lead Packages  
This Device is PbFree, Halogen Free/BFR Free, and RoHS  
Compliant  
© Semiconductor Components Industries, LLC, 2018  
1
Publication Order Number:  
March, 2022 Rev. 0  
NV25128/D  
NV25128, NV25256  
Table 1. ABSOLUTE MAXIMUM RATINGS  
Parameters  
Ratings  
Units  
°C  
Operating Temperature  
45 to +150  
65 to +150  
0.5 to +6.5  
Storage Temperature  
°C  
Voltage on any Pin with Respect to Ground (Note 1)  
V
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.  
1. The DC input voltage on any pin should not be lower than 0.5 V or higher than V + 0.5 V. During transitions, the voltage on any pin may  
CC  
undershoot to no less than 1.5 V or overshoot to no more than V + 1.5 V, for periods of less than 20 ns.  
CC  
Table 2. RELIABILITY CHARACTERISTICS (Note 2)  
Symbol  
Parameter  
Endurance  
Test Condition  
Max  
4,000,000  
1,200,000  
600,000  
300,000  
200  
Units  
NEND  
T
25°C  
Write Cycles  
(Note 3)  
A
T = 85°C  
A
T = 125°C  
A
T = 150°C  
A
TDR  
Data Retention  
T = 25°C  
A
Year  
2. Determined through qualification/characterization.  
3. A Write Cycle refers to writing a Byte, a Page, the Status Register or the Identification Page.  
Table 3. DC OPERATING CHARACTERISTICS  
(V = 2.5 V to 5.5 V, T = 40°C to +150°C, unless otherwise specified.)  
CC  
A
Symbol  
Parameter  
Test Conditions  
Min  
Max  
Units  
I
Supply Current  
(Read Mode)  
Read, SO open  
Write, CS = V  
f
= 10 MHz  
3
mA  
CCR  
SCK  
I
Supply Current  
(Write Mode)  
2
mA  
CCW  
CC  
I
Standby Current  
V
= GND or V  
,
T = 40°C to +125°C  
3
7
mA  
mA  
mA  
mA  
mA  
mA  
V
SB1  
IN  
CC  
A
CS = V , WP = V  
,
CC  
CC  
T = 40°C to +150°C  
A
HOLD = V , V = 5.5 V  
CC  
CC  
I
Standby Current  
V
IN  
= GND or V  
,
T = 40°C to +125°C  
A
5
SB2  
CC  
CS = V , WP = GND,  
CC  
T = 40°C to +150°C  
A
10  
2
HOLD = GND, V = 5.5 V  
CC  
I
L
Input Leakage Current  
Output Leakage Current  
Input Low Voltage  
V
IN  
= GND or V  
2  
2  
CC  
I
CS = V , V  
= GND or V  
CC  
2
LO  
CC  
OUT  
V
0.5  
0.3 V  
IL1  
IH1  
CC  
V
Input High Voltage  
0.7 V  
V
CC  
+ 0.5  
V
CC  
V
Output Low Voltage  
Output High Voltage  
I
= 3.0 mA  
0.4  
V
OL1  
OH1  
OL  
V
I
= 1.6 mA  
V
CC  
0.8 V  
V
OH  
V
PORth  
Internal PowerOn  
Reset Threshold  
0.6  
1.5  
V
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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2
 
NV25128, NV25256  
Table 4. PIN CAPACITANCE (T = 25°C, f = 1.0 MHz, V = +5.0 V) (Note 2)  
A
CC  
Symbol  
Test  
Conditions  
= 0 V  
Min  
Typ  
Max  
8
Unit  
pF  
C
Output Capacitance (SO)  
V
OUT  
OUT  
C
Input Capacitance (CS, SCK, SI, WP, HOLD)  
V
IN  
= 0 V  
8
pF  
IN  
Table 5. AC CHARACTERISTICS (Note 4)  
V
. 2.5 V  
CC  
405C to +1505C  
Min  
Max  
Symbol  
Parameter  
Unit  
MHz  
ns  
f
Clock Frequency  
Data Setup Time  
Data Hold Time  
DC  
10  
10  
40  
40  
10  
SCK  
t
SU  
t
H
ns  
t
SCK High Time  
ns  
WH  
t
SCK Low Time  
ns  
WL  
t
HOLD to Output Low Z  
Input Rise Time  
25  
2
ns  
LZ  
t
RI  
(Note 5)  
(Note 5)  
ms  
t
FI  
Input Fall Time  
2
ms  
t
t
HOLD Setup Time  
HOLD Hold Time  
Output Valid from Clock Low  
Output Hold Time  
Output Disable Time  
HOLD to Output High Z  
CS High Time  
0
ns  
HD  
CD  
10  
ns  
t
V
40  
ns  
t
0
ns  
HO  
t
20  
25  
ns  
DIS  
t
ns  
HZ  
t
40  
30  
30  
30  
30  
ns  
CS  
t
CS Setup Time  
ns  
CSS  
CSH  
CNS  
CNH  
t
t
CS Hold Time  
ns  
CS Inactive Setup Time  
CS Inactive Hold Time  
Write Cycle Time  
t
t
(Note 6)  
4
ms  
WC  
4. AC Test Conditions:  
Input Pulse Voltages: 0.3 V to 0.7 V at V > 2.5 V, 0.2 V to 0.8 V at V < 2.5 V  
CC  
CC  
CC  
CC  
CC  
CC  
Input rise and fall times: 10 ns  
Input and output reference voltages: 0.5 V  
CC  
Output load: current source I  
/I  
; C = 30 pF  
OL max OH max L  
5. This parameter is tested initially and after a design or process change that affects the parameter.  
6. t is the time from the rising edge of CS after a valid write sequence to the end of the internal write cycle.  
WC  
Table 6. POWERUP TIMING (Notes 5, 7)  
Symbol  
Parameter  
Max  
0.35  
0.35  
Unit  
t
Powerup to Read Operation  
Powerup to Write Operation  
ms  
ms  
PUR  
t
PUW  
7. t  
and t  
are the delays required from the time V is stable until the specified operation can be initiated.  
PUR  
PUW  
CC  
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3
 
NV25128, NV25256  
Pin Description  
Functional Description  
The NV25xxx device supports the Serial Peripheral  
Interface (SPI) bus protocol, modes (0,0) and (1,1). The  
device contains an 8bit instruction register. The instruction  
set and associated opcodes are listed in Table 7.  
Reading data stored in the NV25xxx is accomplished by  
simply providing the READ command and an address.  
Writing to the NV25xxx, in addition to a WRITE command,  
address and data, also requires enabling the device for  
writing by first setting certain bits in a Status Register, as will  
be explained later.  
SI: The serial data input pin accepts opcodes, addresses  
and data. In SPI modes (0,0) and (1,1) input data is latched  
on the rising edge of the SCK clock input.  
SO: The serial data output pin is used to transfer data out of  
the device. In SPI modes (0,0) and (1,1) data is shifted out  
on the falling edge of the SCK clock.  
SCK: The serial clock input pin accepts the clock provided  
by the host and used for synchronizing communication  
between host and NV25xxx.  
CS: The chip select input pin is used to enable/disable the  
NV25xxx. When CS is high, the SO output is tristated (high  
impedance) and the device is in Standby Mode (unless an  
internal write operation is in progress). Every communication  
session between host and NV25xxx must be preceded by a  
high to low transition and concluded with a low to high  
transition of the CS input.  
After a high to low transition on the CS input pin, the  
NV25xxx will accept any one of the six instruction opcodes  
listed in Table 7 and will ignore all other possible 8bit  
combinations. The communication protocol follows the  
timing from Figure 2.  
The NV25xxx features an additional Identification Page  
(64 bytes) which can be accessed for Read and Write  
operations when the IPL bit from the Status Register is set  
to “1”. The user can also choose to make the Identification  
Page permanent write protected.  
WP: The write protect input pin will allow all write  
operations to the device when held high. When WP pin is  
tied low and the WPEN bit in the Status Register (refer to  
Status Register description, later in this Data Sheet) is set to  
“1”, writing to the Status Register is disabled.  
Table 7. INSTRUCTION SET  
Instruction  
WREN  
WRDI  
Opcode  
0000 0110  
0000 0100  
0000 0101  
0000 0001  
0000 0011  
0000 0010  
Operation  
HOLD: The HOLD input pin is used to pause transmission  
between host and NV25xxx, without having to retransmit  
the entire sequence at a later time. To pause, HOLD must be  
taken low and to resume it must be taken back high, with the  
SCK input low during both transitions. When not used for  
Enable Write Operations  
Disable Write Operations  
Read Status Register  
Write Status Register  
Read Data from Memory  
Write Data to Memory  
RDSR  
pausing, the HOLD input should be tied to V , either  
WRSR  
READ  
CC  
directly or through a resistor.  
WRITE  
t
CS  
CS  
t
t
t
WL  
CSS  
WH  
t
t
t
CNS  
CNH  
CSH  
SCK  
SI  
t
H
t
RI  
t
FI  
t
SU  
VALID  
IN  
t
V
t
V
t
DIS  
t
HO  
HIZ  
HIZ  
VALID  
OUT  
SO  
Figure 2. Synchronous Data Timing  
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4
 
NV25128, NV25256  
Status Register  
The Status Register, as shown in Table 8, contains a  
number of status and control bits.  
protected sections of memory. While hardware write  
protection is active, only the nonblock protected memory  
can be written. Hardware write protection is disabled when  
the WP pin is high or the WPEN bit is 0. The WPEN bit, WP  
pin and WEL bit combine to either permit or inhibit Write  
operations, as detailed in Table 10.  
The IPL (Identification Page Latch) bit determines  
whether the additional Identification Page (IPL = 1) or main  
memory array (IPL = 0) can be accessed both for Read and  
Write operations. The IPL bit is set by the user with the  
WRSR command and is volatile. The IPL bit is  
automatically reset after read/write operations. The LIP  
(Lock Identification Page) bit is set by the user with the  
WRSR command and is nonvolatile. When set to 1, the  
Identification Page is permanently write protected (locked  
in Readonly mode).  
The RDY (Ready) bit indicates whether the device is busy  
with a write operation. This bit is automatically set to 1 during  
an internal write cycle, and reset to 0 when the device is ready  
to accept commands. For the host, this bit is read only.  
The WEL (Write Enable Latch) bit is set/reset by the  
WREN/WRDI commands. When set to 1, the device is in a  
Write Enable state and when set to 0, the device is in a Write  
Disable state.  
The BP0 and BP1 (Block Protect) bits determine which  
blocks are currently write protected. They are set by the user  
with the WRSR command and are nonvolatile. The user is  
allowed to protect a quarter, one half or the entire memory,  
by setting these bits according to Table 9. The protected  
blocks then become readonly.  
The WPEN (Write Protect Enable) bit acts as an enable for  
the WP pin. Hardware write protection is enabled when the  
WP pin is low and the WPEN bit is 1. This condition  
prevents writing to the status register and to the block  
Note: The IPL and LIP bits cannot be set to 1 using the same  
WRSR instruction. If the user attempts to set (“1”) both the  
IPL and LIP bit in the same time, these bits cannot be written  
and therefore they will remain unchanged.  
Table 8. STATUS REGISTER  
7
6
5
0
4
3
2
1
0
WPEN  
IPL  
LIP  
BP1  
BP0  
WEL  
RDY  
Table 9. BLOCK PROTECTION BITS  
Status Register Bits  
BP1  
0
BP0  
0
Array Address Protected  
Protection  
None  
No Protection  
0
1
NV25128: 30003FFF,  
NV25256: 60007FFF  
Quarter Array Protection  
1
1
0
1
NV25128: 20003FFF,  
NV25256: 20007FFF  
Half Array Protection  
Full Array Protection  
NV25128: 00003FFF,  
NV25256: 00007FFF,  
Table 10. WRITE PROTECT CONDITIONS  
WPEN  
WP  
X
WEL  
Protected Blocks  
Protected  
Unprotected Blocks  
Protected  
Status Register  
Protected  
Writable  
0
0
1
1
X
X
0
1
0
1
0
1
X
Protected  
Writable  
Low  
Low  
High  
High  
Protected  
Protected  
Protected  
Protected  
Protected  
Writable  
Protected  
Writable  
Protected  
Protected  
Protected  
Writable  
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5
 
NV25128, NV25256  
WRITE OPERATIONS  
Write Enable and Write Disable  
The NV25xxx device powers up into a write disable state.  
The device contains a Write Enable Latch (WEL) which  
must be set before attempting to write to the memory array  
or to the status register. In addition, the address of the  
memory location(s) to be written must be outside the  
protected area, as defined by BP0 and BP1 bits from the  
status register.  
The internal Write Enable Latch and the corresponding  
Status Register WEL bit are set by sending the WREN  
instruction to the NV25xxx. Care must be taken to take the  
CS input high after the WREN instruction, as otherwise the  
Write Enable Latch will not be properly set. WREN timing  
is illustrated in Figure 3. The WREN instruction must be  
sent prior to any WRITE or WRSR instruction.  
The internal write enable latch is reset by sending the  
WRDI instruction as shown in Figure 4. Disabling write  
operations by resetting the WEL bit, will protect the device  
against inadvertent writes.  
CS  
SCK  
1
1
0
SI  
0
0
0
0
0
HIGH IMPEDANCE  
SO  
Dashed Line = mode (1, 1)  
Figure 3. WREN Timing  
CS  
SCK  
1
0
0
SI  
0
0
0
0
0
HIGH IMPEDANCE  
SO  
Dashed Line = mode (1, 1)  
Figure 4. WRDI Timing  
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6
 
NV25128, NV25256  
Byte Write  
Following completion of the write cycle, the NV25xxx is  
automatically returned to the write disable state.  
Once the WEL bit is set, the user may execute a write  
sequence, by sending a WRITE instruction, a 16bit address  
and data as shown in Figure 5. The number of significant bits  
is as shown in Table 11. Internal programming will start after  
the low to high CS transition. During an internal write cycle,  
all commands, except for RDSR (Read Status Register) will  
be ignored. The RDY bit will indicate if the internal write  
cycle is in progress (RDY high), or the device is ready to  
accept commands (RDY low).  
Write Identification Page  
The additional 64byte Identification Page (IP) can be  
written with user data using the same Write commands  
sequence as used for Page Write to the main memory array  
(Figure 6). The IPL bit from the Status Register must be  
set (IPL = 1) using the WRSR instruction, before  
attempting to write to the IP. The address bits [A15:A5] are  
Don’t Care and the [A4:A0] bits define the byte address  
within the Identification Page. In addition, the Byte Address  
must point to a location outside the protected area defined by  
the BP1, BP0 bits from the Status Register. When the full  
memory array is write protected (BP1, BP0 = 1,1), the write  
instruction to the IP is not accepted and not executed. Also,  
the write to the IP is not accepted if the LIP bit from the  
Status Register is set to 1 (the page is locked in Readonly  
mode).  
Page Write  
After sending the first data byte to the NV25xxx, the host  
may continue sending data, up to a total of 64 bytes,  
according to timing shown in Figure 6. After each data byte,  
the lower order address bits are automatically incremented,  
while the higher order address bits (page address) remain  
unchanged. If during this process the end of page is  
exceeded, then loading will “roll over” to the first byte in the  
page, thus possibly overwriting previously loaded data.  
Table 11. BYTE ADDRESS  
Address Significant Bits  
Address Don’t Care Bits  
# Address Clock Pulses  
NV25256  
A14 A0  
A13 A0  
A4 A0  
A15  
16  
16  
16  
NV25128  
A15 A14  
A15 A5  
Identification Page  
CS  
0
1
2
3
4
5
6
7
8
21 22 23 24 25 26 27 28 29 30 31  
SCK  
OPCODE  
DATA IN  
BYTE ADDRESS*  
D7 D6 D5 D4 D3 D2 D1 D0  
SI  
0
0
0
0
0
0
1
0
A
N
A
0
HIGH IMPEDANCE  
Dashed Line = mode (1, 1)  
SO  
* Please check the Byte Address Table (Table 11)  
Figure 5. Byte WRITE Timing  
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7
 
NV25128, NV25256  
CS  
24+(N1)x81 .. 24+(N1)x8  
21 22 23 2431 3239  
0
1
2
3
4
5
6
7
8
24+Nx81  
SCK  
SI  
Data Byte N  
7..1  
BYTE ADDRESS*  
OPCODE  
DATA IN  
A
N
A
0
0
0
0
0
0
0
1
0
0
Data Data Data  
Byte 1 Byte 2 Byte 3  
HIGH IMPEDANCE  
SO  
Dashed Line = mode (1, 1)  
* Please check the Byte Address Table (Table 11)  
Figure 6. Page WRITE Timing  
Write Status Register  
Write Protection  
The Status Register is written by sending a WRSR  
instruction according to timing shown in Figure 7. Only bits  
2, 3, 4, 6 and 7 can be written using the WRSR command.  
The Write Protect (WP) pin can be used to protect the  
Block Protect bits BP0 and BP1 against being inadvertently  
altered. When WP is low and the WPEN bit is set to “1”,  
write operations to the Status Register are inhibited. WP  
going low while CS is still low will interrupt a write to the  
status register. If the internal write cycle has already been  
initiated, WP going low will have no effect on any write  
operation to the Status Register. The WP pin function is  
blocked when the WPEN bit is set to “0”.  
CS  
0
1
2
3
4
5
6
7
1
8
9
6
10  
5
11  
4
12  
13  
2
14  
1
15  
0
SCK  
SI  
OPCODE  
0
DATA IN  
3
0
0
0
0
0
0
7
MSB  
HIGH IMPEDANCE  
Dashed Line = mode (1, 1)  
SO  
Figure 7. WRSR Timing  
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8
 
NV25128, NV25256  
READ OPERATIONS  
Read from Memory Array  
internal write cycle is in progress, the RDSR command will  
output the full content of the status register. For easy  
detection of the internal write cycle completion, we  
recommend sampling the RDY bit only through the polling  
routine. After detecting the RDY bit “0”, the next RDSR  
instruction will always output the expected content of the  
status register.  
To read from memory, the host sends a READ instruction  
followed by a 16bit address (see Table 11 for the number  
of significant address bits).  
After receiving the last address bit, the NV25xxx will  
respond by shifting out data on the SO pin (as shown in  
Figure 8). Sequentially stored data can be read out by simply  
continuing to run the clock. The internal address pointer is  
automatically incremented to the next higher address as data  
is shifted out. After reaching the highest memory address,  
the address counter “rolls over” to the lowest memory  
address, and the read cycle can be continued indefinitely.  
The read operation is terminated by taking CS high.  
Read Identification Page  
Reading the additional 64byte Identification Page (IP) is  
achieved using the same Read command sequence as used  
for Read from main memory array (Figure 8). The IPL bit  
from the Status Register must be set (IPL = 1) before  
attempting to read from the IP. The [A4:A0] are the  
address significant bits that point to the data byte shifted out  
on the SO pin. If the CS continues to be held low, the internal  
address register defined by [A4:A0] bits is automatically  
incremented and the next data byte from the IP is shifted out.  
The byte address must not exceed the 64byte page  
boundary.  
Read Status Register  
To read the status register, the host simply sends a RDSR  
command. After receiving the last bit of the command, the  
NV25xxx will shift out the contents of the status register on  
the SO pin (Figure 9). The status register may be read at any  
time, including during an internal write cycle. While the  
CS  
20 21 22 23 24 25 26 27 28 29 30  
0
1
2
3
4
5
6
7
8
9
10  
SCK  
SI  
OPCODE  
BYTE ADDRESS*  
A
0
A
N
0
0
0
0
0
0
1
1
DATA OUT  
HIGH IMPEDANCE  
SO  
7
6
5
4
3
2
1
0
Dashed Line = mode (1, 1)  
* Please check the Byte Address Table (Table 11)  
MSB  
Figure 8. READ Timing  
CS  
0
1
2
3
4
5
1
6
0
7
1
8
9
10  
11  
12  
13  
14  
SCK  
OPCODE  
0
0
0
0
0
SI  
DATA OUT  
3
HIGH IMPEDANCE  
Dashed Line = mode (1, 1)  
5
7
6
4
2
1
0
SO  
MSB  
Figure 9. RDSR Timing  
www.onsemi.com  
9
 
NV25128, NV25256  
Hold Operation  
below the POR trigger level. This bidirectional POR  
behavior protects the device against ‘brownout’ failure  
following a temporary loss of power.  
The NV25xxx device powers up in a write disable state  
and in a low power standby mode. A WREN instruction  
must be issued prior to any writes to the device.  
After power up, the CS pin must be brought low to enter  
a ready state and receive an instruction. After a successful  
byte/page write or status register write, the device goes into  
a write disable mode. The CS input must be set high after the  
proper number of clock cycles to start the internal write  
cycle. Access to the memory array during an internal write  
cycle is ignored and programming is continued. Any invalid  
opcode will be ignored and the serial output pin (SO) will  
remain in the high impedance state.  
The HOLD input can be used to pause communication  
between host and NV25xxx. To pause, HOLD must be taken  
low while SCK is low (Figure 10). During the hold condition  
the device must remain selected (CS low). During the pause,  
the data output pin (SO) is tristated (high impedance) and  
SI transitions are ignored. To resume communication,  
HOLD must be taken high while SCK is low.  
Design Considerations  
The NV25xxx device incorporates PowerOn Reset  
(POR) circuitry which protects the internal logic against  
powering up in the wrong state. The device will power up  
into Standby mode after VCC exceeds the POR trigger level  
and will power down into Reset mode when VCC drops  
CS  
t
t
CD  
CD  
SCK  
t
HD  
t
HD  
HOLD  
SO  
t
HZ  
HIGH IMPEDANCE  
t
LZ  
Dashed Line = mode (1, 1)  
Figure 10. HOLD Timing  
Error Correction Code  
The NV25xxx incorporates onboard Error Correction  
Code (ECC) circuitry, which makes it possible to detect and  
correct one faulty bit in a byte. ECC improves data reliability  
by correcting random single bit failures that might occur  
over the life of the device.  
Table 12. ORDERING INFORMATION (Notes 8, 9)  
OPN  
Density  
128 kb  
128 kb  
Automotive Grade  
Package Type  
TSSOP8 (PbFree)  
SOIC8 (PbFree)  
Shipping  
NV25128DTHFT3G  
NV25128DWHFT3G  
Grade 0 (40°C to +150°C)  
Grade 0 (40°C to +150°C)  
3,000 / Tape & Reel  
3,000 / Tape & Reel  
NV25256DTHFT3G  
NV25256DWHFT3G  
256 kb  
256 kb  
Grade 0 (40°C to +150°C)  
Grade 0 (40°C to +150°C)  
TSSOP8 (PbFree)  
SOIC8 (PbFree)  
3,000 / Tape & Reel  
3,000 / Tape & Reel  
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging  
Specifications Brochure, BRD8011/D.  
8. All packages are RoHScompliant (PbFree, Halogenfree).  
9. The standard lead finish is NiPdAu.  
www.onsemi.com  
10  
 
MECHANICAL CASE OUTLINE  
PACKAGE DIMENSIONS  
SOIC8, 150 mils  
CASE 751BD  
ISSUE O  
DATE 19 DEC 2008  
SYMBOL  
MIN  
NOM  
MAX  
1.35  
A
1.75  
A1  
b
0.10  
0.33  
0.19  
4.80  
5.80  
3.80  
0.25  
0.51  
0.25  
5.00  
6.20  
4.00  
c
E1  
E
D
E
E1  
e
h
L
θ
1.27 BSC  
0.25  
0.40  
0º  
0.50  
1.27  
8º  
PIN # 1  
IDENTIFICATION  
TOP VIEW  
D
h
A1  
θ
A
c
e
b
L
SIDE VIEW  
END VIEW  
Notes:  
(1) All dimensions are in millimeters. Angles in degrees.  
(2) Complies with JEDEC MS-012.  
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:  
98AON34272E  
SOIC 8, 150 MILS  
PAGE 1 OF 1  
onsemi and  
are trademarks of Semiconductor Components Industries, LLC dba onsemi or its subsidiaries in the United States and/or other countries. onsemi reserves  
the right to make changes without further notice to any products herein. onsemi makes no warranty, representation or guarantee regarding the 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. onsemi does not convey any license under its patent rights nor the rights of others.  
© Semiconductor Components Industries, LLC, 2019  
www.onsemi.com  
MECHANICAL CASE OUTLINE  
PACKAGE DIMENSIONS  
TSSOP8, 4.4x3.0, 0.65P  
CASE 948AL  
ISSUE A  
DATE 20 MAY 2022  
q
q
GENERIC  
MARKING DIAGRAM*  
XXX  
YWW  
AG  
XXX = Specific Device Code  
Y
= Year  
WW = Work Week  
A
G
= Assembly Location  
= PbFree Package  
*This information is generic. Please refer to  
device data sheet for actual part marking.  
PbFree indicator, “G” or microdot “G”, may  
or may not be present. Some products may  
not follow the Generic Marking.  
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:  
98AON34428E  
TSSOP8, 4.4X3.0, 0.65P  
PAGE 1 OF 1  
onsemi and  
are trademarks of Semiconductor Components Industries, LLC dba onsemi or its subsidiaries in the United States and/or other countries. onsemi reserves  
the right to make changes without further notice to any products herein. onsemi makes no warranty, representation or guarantee regarding the 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. onsemi does not convey any license under its patent rights nor the rights of others.  
© Semiconductor Components Industries, LLC, 2019  
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  
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A listing of onsemi’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/PatentMarking.pdf. onsemi reserves the right to make changes at any time to any  
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ADDITIONAL INFORMATION  
TECHNICAL PUBLICATIONS:  
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