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25AA640 - 64K SPI Bus Serial EEPROM

Datasheet Summary

Description

The Microchip Technology Inc.

) is a 64K bit Serial Electrically Erasable PROM [EEPROM].

The memory is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus.

Features

  • Low-power CMOS technology - Write current: 3 mA typical - Read current: 500 µA typical - Standby current: 500 nA typical.
  • 8192 x 8 bit organization.
  • 32 byte page.
  • Write cycle time: 5 ms max.
  • Self-timed ERASE and WRITE cycles.
  • Block write protection - Protect none, 1/4, 1/2 or all of array.
  • Built-in write protection - Power on/off data protection circuitry - Write enable latch - Write-protect pin.
  • Sequential read.

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Datasheet preview – 25AA640

Datasheet Details

Part number 25AA640
Manufacturer MicrochipTechnology
File Size 232.09 KB
Description 64K SPI Bus Serial EEPROM
Datasheet download datasheet 25AA640 Datasheet
Additional preview pages of the 25AA640 datasheet.

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Full PDF Text Transcription

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25AA640/25LC640 64K SPI™ Bus Serial EEPROM Device Selection Table Part Number 25AA640 25LC640 25LC640 VCC Range 1.8-5.5V 2.5-5.5V 4.5-5.5V Max Clock Frequency 1 MHz 2 MHz 3/2.5 MHz Temp Ranges I I I, E Features • Low-power CMOS technology - Write current: 3 mA typical - Read current: 500 µA typical - Standby current: 500 nA typical • 8192 x 8 bit organization • 32 byte page • Write cycle time: 5 ms max.
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