34AA04中文资料4Kb I2C compatible Serial Present Detect (SPD) Serial EEPROM for DDR4 DIMM modules数据手册Microchip规格书

描述 Description

The Microchip Technology Inc. 34AA04 is a 4 Kbit Electrically Erasable PROM which utilizes the I2C serial interface and is capable of operation across a broad voltage range (1.7V to 3.6V). This device is JEDEC JC42.4 (EE1004-v) Serial Presence Detect (SPD) compliant and is designed to be compatible with DDR4 SDRAM modules. The 34AA04 includes reversible software write protection for each of four independent 128 x 8-bit blocks and supports an SMBus compatible bus time out. The device features a page write capability of up to 16 bytes of data. Address pins allow up to eight devices on the same bus. The 34AA04 is available in the 8-lead PDIP, SOIC, TSSOP, TDFN, and UDFN packages.

特性 Features

• 4 Kbit I2C EEPROM
• Internally organized as two 256 x 8-bit banks
• Byte or page writes (up to 16 bytes)
• Byte or sequential reads within a single bank
• JEDEC® JC42.4 (EE1004-v) Serial Presence Detect (SPD) compliant for DRAM (DDR4) modules
• Industry standard 1 MHz, 400 kHz, and 100 kHz
• SMBus-compatible bus time out
• Cascadable up to eight devices
• Reversible software write protection for four individual 128-byte blocks
• Voltage range: 1.7V to 3.6V
• Write current: 1.5 mA at 3.6V
• Read current: 200 μA at 3.6V, 400 kHz
• Standby current: 1 μA at 3.6V
• More than one million erase/write cycles
• Data retention: > 200 years
• 8-lead PDIP, SOIC, TSSOP, TDFN, and UDFN Packages
• Industrial (I): -40°C to +85°C
• Automotive (E): -40°C to +125°C

简介

34AA04属于集成电路（IC）的存储器。由Microchip制造生产的34AA04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。