AT25256B-SSHL-T Integrated Circuits (ICs)

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1. Description

The AT25256B-SSHL-T provides 131,072/262,144 bits of Serial Electrically Erasable and 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 device is available in space-saving 8‑lead SOIC, 8‑lead TSSOP, 8‑pad UDFN and 8‑ball VFBGA packages. All packages operate from 1.8V to 5.5V.

2. Features

     1. Serial Peripheral Interface (SPI) Compatible

     2. Supports SPI Modes 0 (0,0) and 3 (1,1):

         – Data sheet describes mode 0 operation

     3. Low-Voltage Operation:

         – 1.8V (VCC = 1.8V to 5.5V)

     4. Industrial Temperature Range: -40°C to +85°C

     5. 20 MHz Clock Rate (5V)

     6. 64‑Byte Page Mode

     7. Block Write Protection:

         – Protect 1/4, 1/2 or entire array

    8. Write-Protect (WP) Pin and Write Disable Instructions for Both Hardware and Software Data Protection

    9. Self-Timed Write Cycle within 5 ms Maximum

  10. ESD Protection > 4,000V

  11. High Reliability:

        – Endurance: 1,000,000 write cycles 

        – Data retention: 100 years

  12. Green (Lead-free/Halide-free/RoHS Compliant) Package Options

  13. Die Sale Options: Wafer Form and Bumped Wafers

3. Package Types

4. Packaging Information