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Datasheet

PDF

软件

说明

AT25128B/256B

AT25128B/256B Complete

(文件大小: 767KB, 22 页数, 修订版 E, 更新时间: 01/2015)

128Kb/256Kb, SPI Bus Serial EEPROM, High Speed, supports Mode 0 and 3 operation.

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The Atmel high-speed, 256Kb SPI bus Serial EEPROMs support SPI Modes 0 and 3 operation. The EEPROM is organized as 32,768 words x 8 bits and optimized for industrial and commercial applications where low-power and low-voltage operations are essential. The EEPROM is available in a variety of space-saving packaging options at 1.8 (Vcc = 1.8V to 5.5V). The 3-wire serial interface consists of a data input, output, and a shift 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

参数

Interface Type:

SPI

Operating Voltage (Vcc):

1.8 to 5.5

Density:

256Kb

Organization:

32768 x 8

Page Size (Bytes):

64

Temp. Range (deg C):

-40 to 85

Max. Operating Freq. (MHz):

20 MHz

I/O Pins:

8

 

订购码 封装 操作范围 载体类型 样品 Atmel 商店可用性1 单价2 网上购买
AT25256B-SSHL-B SOIC 8S1 8 Industrial (A) (-40°C to 85°C) 0 不同
AT25256B-SSHL-T SOIC 8S1 8 Industrial (A) (-40°C to 85°C) 请求
AT25256B-XHL-B TSSOP 8X 8 Industrial (A) (-40°C to 85°C) 0 不同
AT25256B-XHL-T TSSOP 8X 8 Industrial (A) (-40°C to 85°C) 请求
AT25256B-MAHL-T UDFN 8MA2 8 Industrial (A) (-40°C to 85°C) 请求
AT25256B-MAHL-E UDFN 8MA2 8 Industrial (A) (-40°C to 85°C) 0 不同
AT25256B-CUL-T VFBGA 8U2-1 8 Industrial (A) (-40°C to 85°C) 0 不同
AT25256B-WWU11L Wafer Sales W Industrial (A) (-40°C to 85°C) N/A N/A N/A N/A



1Backlog orders can be placed for items currently not available.
2Suggested retail price per unit for budgetary use only.