5 2.1.
Chip Select (CS)5 2.2.
Serial Data Output (SO) 5 2.3.
Write-Protect (WP) 5 2.4.
Ground (GND) 5 2.5.
Serial Data Input (SI)6 2.6.
Serial Data Clock (SCK)6 2.7.
Suspend Serial Input (HOLD)6 2.8.
Device Power Supply (VCC) 6 3.
Description7 3.1.
SPI Bus Master Connections to Serial EEPROMs7 3.2.
AT25256B 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
Datasheet Details
AT25256B, AT25128B
1.29 MB
Spi serial eeprom.
This datasheet PDF includes multiple part numbers: AT25256B, AT25128B.
Please refer to the document for exact specifications by model.
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