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AT25128

Atmel
Part Number AT25128
Manufacturer Atmel
Description SPI Serial EEPROMs
Published May 5, 2014
Detailed Description Features • Serial Peripheral Interface (SPI) Compatible • Supports SPI Modes 0 (0,0) and 3 (1,1) • Low-voltage and Stand...
Datasheet PDF File AT25128 PDF File

AT25128
AT25128

Overview
Features • Serial Peripheral Interface (SPI) Compatible • Supports SPI Modes 0 (0,0) and 3 (1,1) • Low-voltage and Standard-voltage Operation • • • • • • • • – 2.
7 (VCC = 2.
7V to 5.
5V) – 1.
8 (VCC = 1.
8V to 5.
5V) 3 MHz Clock Rate 64-byte Page Mode and Byte Write Operation 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 (5 ms Typical) High-reliability – Endurance: 100,000 Write Cycles – Data Retention: >200 Years Automotive Grade, Extended Temperature and Lead-Free Devices Available 8-lead PDIP, 8-lead EIAJ SOIC, 8-lead and 16-lead JEDEC SOIC, 14-lead and 20-lead TSSOP, and 8-lead Leadless Array Packages SPI Serial EEPROMs 128K (16,384 x 8) 256K (32,768 x 8) Description The AT25128/256 provides 131,072/262,144 bits of serial electrically-erasable programmable read only memory (EEPROM) organized as 16,384/32,768 words of 8 bits each.
The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential.
The devices are available in space saving 8-lead PDIP (AT25128/256), 8-lead EIAJ SOIC (AT25128/256), 8-lead and 16-lead JEDEC SOIC (AT25128), 14-lead TSSOP (AT25128), 20-lead TSSOP (AT25128/256), and 8-lead Leadless Array (AT25256) packages.
In addition, the entire family is available in 2.
7V (2.
7V to 5.
5V) and 1.
8V (1.
8V to 5.
5V) versions.
Table 1.
Pin Configuration Pin Name CS SCK SI SO GND VCC WP HOLD NC DC Function Chip Select Serial Data Clock Serial Data Input Serial Data Output Ground Power Supply Write Protect Suspends Serial Input No Connect Don't Connect CS SO NC NC NC NC WP GND CS SO NC NC NC WP GND 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VCC HOLD NC NC NC SCK SI AT25128(1) AT25256(2) Notes: 1.
This device is not recommended for new designs.
Please refer to AT25128A.
2.
This device is not recommended for new designs.
Please refer to AT25256A.
14-lead TSSOP NC CS SO ...


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