25LC640A中文资料64Kb 2.5V SPI Serial EEPROM数据手册Microchip规格书

描述 Description

The Microchip 25LC640A is a 64 Kb Serial EEPROM utilizing theindustry standard Serial Peripheral Interface (SPI) compatible serial bus. Thedevice is organized as one block of 8192 x 8-bit and is optimized for use in consumer electronics, industrial, medical,and automotive applications where reliable and dependable nonvolatile memorystorage is essential. Software write protection allows the user to protect ¼,½, or the entire memory array. A hardware write protect pin is also provided,which additionally protects against inadvertent writes to the status register.The EEPROM is available in a variety of space-saving packaging options.

特性 Features

8192 x 8-bit (64 Kbit)
Supports SPI modes 0 and 3
Up to 10 MHz clock frequency
Self-Timed Erase and Write Cycles (5 ms max.)
Read current: 5 mA (Max) at 10 MHz
Write current: 5 mA (Max) at 10 MHz
Standby current: 5 μA (Max) at 5.5 V
Block Write Protection: Protect 1/4, 1/2 or Entire Array
More than 1 million erase/write cycles
Data retention > 200 years
Industrial (I): -40°C to 85°C
Extended (E): -40°C to +125°C
Extended (H)2: -40°C to +150°C
Extended (M)2: -55°C to +125°C
Automotive AECQ-100 Qualified1
Factory Programming Available
Available in standard packages including 8-lead PDIP and SOIC, and advanced packages including 8-lead MSOP, 8-lead TSSOP and 8-lead 2x3 TDFN

简介

25LC640A属于集成电路（IC）的存储器。由制造生产的25LC640A存储器存储器是集成电路上用作数据存储设备的半导体器件。这些器件分为非易失性或易失性两种，格式包括 CBRAM、DRAM、EEPROM、EERAM、EPROM、闪存、FRAM、NVSRAM、PCM (PRAM)、PSRAM、RAM 和 SRAM。这些器件的存储容量为 64 b 至 6 Tb 不等，接口有 I2C、MMC、并行、eMMC、串行、单线、SPI、UFS、Xccela 总线和 1-线。