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标题概述
AT25128B/256B Automotive Summaryfile size: 687KB , 20 pages , revision C , updated: 12/2012
产品概述

The Atmel 128Kb SPI Serial EEPROM, organized as 16,384 words x 8 bits, is accessed via a 3-wire serial bus supporting SPI Mode 0 and 3 operation. It is optimized for automotive applications where low-power and low-voltage operations are essential. The EEPROM is available in two 8-lead, space-saving packaging options and operates at 2.5V (Vcc = 2.5V to 5.5V). The 3-wire serial interface consists of a serial data input, output, and a serial clock. All programming cycles are completely self-timed, and no separate erase cycle is required before write. Block write protection is program enabled and separate program enable and disable instructions are provided for additional data protection. Hardware data protection provided to protect against inadvertent write attempts to the status register. Any serial communication suspension can be accomplished without resetting the serial sequence.

关键参数
ParameterValue
Operating Voltage (Vcc):2.5
Interface Type:SPI
Density:128Kb
F.max (MHz):5 MHz
Max. Operating Freq. (MHz):5 MHz
Organization:16384 x 8
Page Size (Bytes):64
I/O Pins:8
芯片订购型号
Ordering CodePackageSpeedPower SupplyOperational Range
AT25128B-XPD-TTSSOP 8X 852.5-5.5Automotive(Grade 1) (-40°C to 125°C)
AT25128B-SSPD-TSOIC 8S1 852.5-5.5Automotive(Grade 1) (-40°C to 125°C)