描述 Description

The Microchip AT34C02D is a 2 Kb Serial EEPROM utilizing an I2C(2-wire) serial interface. The device is organized as one block of 256 x 8 and is optimized for use in consumer and industrial applicationswhere reliable and dependable nonvolatile memory storage is essential. TheEEPROM is available in a variety of space-saving packaging options.The AT34C02D is designed to support the JEDEC EE1002 and EE1002A Serial Presence Detect (SPD) function used in DDR, DDR2, and DDR3 Dual Inline Memory Modules (DIMM). In order to comply with this standard, the device includes a software write protection feature for the lower 128 bytes of the EEPROM that can be made permanent.

特性 Features

256 x 8 (2 Kbit)
400 kHz and 1 MHz (5V) clock compatibility
Supports up to 8 devices on the bus
EEPROM Specification for use in DDR, DDR2, and DDR3 DIMM Modules
Self-Timed Erase and Write Cycles (5 ms max.)
Read current 1 mA (Typ), 2 mA (Max)
Write current 2 mA (Typ), 3 mA (Max)
Standby current 6 uA (Max)
Hardware Write-Protect Pin
More than 1 million erase/write cycles
Data retention > 100 years
Available in?8-pad 2x3mm UDFN, 8-lead TSSOP, 8-lead JEDEC SOIC, and 8-ball VFBGA Packages

簡介

AT34C02D屬于集成電路（IC）的存儲器。由制造生產(chǎn)的AT34C02D存儲器存儲器是集成電路上用作數(shù)據(jù)存儲設(shè)備的半導(dǎo)體器件。這些器件分為非易失性或易失性兩種，格式包括 CBRAM、DRAM、EEPROM、EERAM、EPROM、閃存、FRAM、NVSRAM、PCM (PRAM)、PSRAM、RAM 和 SRAM。這些器件的存儲容量為 64 b 至 6 Tb 不等，接口有 I2C、MMC、并行、eMMC、串行、單線、SPI、UFS、Xccela 總線和 1-線。