AT25256B

KeyValue
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

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.

Ordering Code 订购信息
订购码封装操作范围载体类型
AT25256B-SSHL-BSOIC 8S1 8Industrial (A) (-40°C to 85°C)
AT25256B-SSHL-TSOIC 8S1 8Industrial (A) (-40°C to 85°C)
AT25256B-XHL-BTSSOP 8X 8Industrial (A) (-40°C to 85°C)
AT25256B-XHL-TTSSOP 8X 8Industrial (A) (-40°C to 85°C)
AT25256B-MAHL-TUDFN 8MA2 8Industrial (A) (-40°C to 85°C)
AT25256B-MAHL-EUDFN 8MA2 8Industrial (A) (-40°C to 85°C)
AT25256B-CUL-TVFBGA 8U2-1 8Industrial (A) (-40°C to 85°C)
AT25256B-WWU11LWafer Sales WIndustrial (A) (-40°C to 85°C)
DataSheet 数据手册
Application Note
Brochures and Flyers
AT25128B/256B Complete (文件大小: 767KB, 22 页数, 修订版 E, 更新时间: 01/2015)
PCB Mounting Guidelines for Surface Mount Packages (文件大小: 690KB, 19 页数, 修订版 B, 更新时间: 04/2016)
Serial EEPROM Interface Protocol (文件大小: 111427, 6 页数, 修订版 A, 更新时间: 06/2008)
Atmel Support for Third Party Memory Devices Programmer Sources (文件大小: 80KB, 3 页数, 修订版 E, 更新时间: 04/2013)
Atmel Serial EEPROM Products (文件大小: 1.18MB, 8 页数, 修订版 B, 更新时间: 04/2015)
Atmel System Peripheral and Memory Products Brochure (文件大小: 478KB, 8 页数, 修订版 D, 更新时间: 12/2012)
Automotive Solutions (文件大小: 5.51 MB, 20 页数, 更新时间: 02/2014)
Product Selection Guide (文件大小: 4.55 MB, 28 页数, 修订版 11, 更新时间: 01/2016)
汽车集成电路 (Chinese Version) (文件大小: 999611, 16 页数, 修订版 I, 更新时间: 03/2011)