M34E04B

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与JEDEC EE1004兼容的4-Kbit串行存在检测(SPD)EEPROM

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  • The M34E04B is a 512-byte EEPROM device designed to operate the SMBus bus in the 1.7 V - 3.6 V voltage range, with a maximum of 1 MHz transfer rate in the 2.2 V - 3.6 V voltage range, over the JEDEC defined ambient temperature of 0°C / 95°C.

    The M34E04B includes a 4-Kbit serial EEPROM organized as two pages of 256 bytes each, or 512 bytes of total memory. Each page is composed of two 128-byte blocks. The device is able to selectively lock the data in any or all of the four 128-byte blocks. Designed specifically for use in DRAM DIMMs (Dual Inline Memory Modules) with Serial Presence Detect, all the information concerning the DRAM module configuration (such as its access speed, its size, its organization) can be kept write-protected in one or more memory blocks.
    The M34E04B device is protocol-compatible with the previous generation of 2-Kbit devices, M34E02. The page selection method allows commands used with legacy devices such as M34E02 to be applied to the lower or upper pages of the EEPROM.
    Individually locking a 128-byte block may be accomplished using a software write protection mechanism in conjunction with a high input voltage VHV on input SA0. By sending the device a specific SMBus sequence, each block may be protected from writes until the write protection is electrically reversed using a separate SMBus sequence which also requires VHV on input SA0. The write protection for all four blocks is cleared simultaneously.

    主要特性

    • 512-byte Serial Presence Detect EEPROM compatible with JEDEC EE1004 specification
    • Compatible with SMBus serial interface:
      • up to 1 MHz transfer rate
    • EEPROM memory array:
      • 4 Kbits organized as two pages of 256 bytes each
      • Each page is composed of two 128-byte blocks
    • No hardware write protection
    • Software data protection for each 128-byte block
    • Write:
      • Byte Write within 5 ms
      • 16 bytes Page Write within 5 ms
    • Noise filtering:
      • Schmitt trigger on bus inputs
      • Noise filter on bus inputs
    • Single supply voltage:
      • 1.7 V to 3.6 V
    • Operating temperature range:
      • from 0 °C up to +95 °C
    • Enhanced ESD/latch-up protection
    • More than 4million Write cycles
    • More than 200-year data retention
    • RoHS-compliant and halogen-free 8-lead ultra thin fine pitch dual flat no lead package (ECOPACK2®)

适合您的资源

All tools & software

    • 产品型号
      状态
      描述
      类型
      供应商

      ST EEPROM Finder

      批量生产

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      ST EEPROM Finder

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CAD/EDA Symbols, Footprints and Models

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
M34E04B-FMC9TG
批量生产
UFDFPN8 工业 Ecopack2

M34E04B-FMC9TG

Package:

UFDFPN8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

UFDFPN8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
M34E04B-FMC9TG 没有经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape And Reel UFDFPN8 0 95 PHILIPPINES 0.1652 / 1k

M34E04B-FMC9TG

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.1652 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

UFDFPN8

Operating Temperature (°C)

(最小值)

0

(最大值)

95

Budgetary Price (US$)* / Qty

0.1652 / 1k

Country of Origin

PHILIPPINES

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商