DATA SHEET
www.onsemi.com
EEPROM Serial 128/256 kb
SPI Automotive Grade 0
SOIC−8
DW SUFFIX
CASE 751BD
TSSOP−8
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 64−byte 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 On−Chip 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 AEC−Q100 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
• 64−byte Page Write Buffer
• Self−timed 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 8−lead Packages
• This Device is Pb−Free, Halogen Free/BFR Free, and RoHS
Compliant
© Semiconductor Components Industries, LLC, 2018
1
Publication Order Number:
March, 2022 − Rev. 0
NV25128/D