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AT25128B

Microchip
Part Number AT25128B
Manufacturer Microchip
Description SPI Serial EEPROM
Published Aug 13, 2023
Detailed Description AT25128B/AT25256B SPI Serial EEPROM 128 Kbits (16,384 x 8) and 256 Kbits (32,768 x 8) Features • Serial Peripheral Inter...
Datasheet PDF File AT25128B PDF File

AT25128B
AT25128B

Overview
AT25128B/AT25256B SPI Serial EEPROM 128 Kbits (16,384 x 8) and 256 Kbits (32,768 x 8) Features • Serial Peripheral Interface (SPI) Compatible • Supports SPI Modes 0 (0,0) and 3 (1,1): – Data sheet describes mode 0 operation • Low-Voltage Operation: – 1.
8V (VCC = 1.
8V to 5.
5V) • Industrial Temperature Range: -40°C to +85°C • 20 MHz Clock Rate (5V) • 64‑Byte Page Mode • Block Write Protection: – Protect 1/4, 1/2 or entire array • Write-Protect (WP) Pin and Write Disable Instructions for Both Hardware and Software Data Protection • Self-Timed Write Cycle within 5 ms Maximum • ESD Protection > 4,000V • High Reliability: – Endurance: 1,000,000 write cycles – Data retention: 100 years • Green (Lead-free/Halide-free/RoHS Compliant) Package Options • Die Sale Options: Wafer Form and Bumped Wafers Packages • 8-Lead SOIC, 8-Lead TSSOP, 8-Pad UDFN and 8-Ball VFBGA © 2019 Microchip Technology Inc.
DS20006193A-page 1 AT25128B/AT25256B Table of Contents Features.
.
1 Packages.
1 1.
Package Types (not to scale).
.
.
.
4 2.
Pin Description.
5 2.
1.
Chip Select (CS).
.
.
5 2.
2.
Serial Data Output (SO).
5 2.
3.
Write-Protect (WP).
.
.
.
5 2.
4.
Ground (GND).
.
.
...


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