WMSIC Electronic Components

ST M95640-RMN6TP M95640

ModelM95640-RMN6TP
PackageSOIC-8
BrandST
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 23+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
ST(STMicroelectronics) M95640-RMN6TP
Type
ST
Unit
Electronic Component
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ST(STMicroelectronics)
Electronic Component
M95640-RMN6TP
Electronic Component
1
Package
SOIC-8
Electronic Component
EEPROM
Electronic Component
0.194g
Electronic Component
1
Features
Built-in positions(POR);; Built-in Latch(WEL); Built-in (ECC)
Electronic Component
BM0228686565
Electronic Component
64Kbit
Operating Temperature
40℃~+85℃
Operating Voltage
1.8V~5.5V
Interface Type
SPI
Electronic Component
400

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

M95640-RMN6TP 产品概述

一、核心参数

  • 型号:M95640-RMN6TP(ST 意法半导体)
  • 存储容量:64 Kbit(8 KBytes)
  • 接口类型:SPI 串行外围接口(支持标准 SPI 命令集)
  • 最大时钟频率:fc = 20 MHz
  • 工作电压:1.8 V ~ 5.5 V(宽电源范围,兼容多种系统电平)
  • 写周期时间:Tw = 5 ms(典型页面/字节写入完成时间)
  • 写周期寿命:4,000,000 次(高耐久性)
  • 数据保留:TDR = 200 年(长期可靠性)
  • 工作温度:-40 ℃ ~ +85 ℃(工业级温度范围)
  • 封装:SOIC-8

二、产品简介

M95640-RMN6TP 是 ST 出品的一款 64Kbit 串行 SPI EEPROM,面向对数据可靠性与耐久性有较高要求的嵌入式系统。器件支持随机读、顺序读以及写操作,适合保存校准参数、配置表、序列号、日志数据等需长期保存的小容量非易失性数据。宽电源电压与工业温度范围使其可在电池供电、工业控制、计量仪表及汽车电子等多种场景中使用。

三、主要功能与引脚说明

器件提供典型的 SPI 引脚功能,便于与 MCU 或 SPI 控制器直接连接:

  • CS(片选):帧起止控制、写保护使能控制
  • SCLK(串行时钟):最高 20 MHz,控制数据移位速度
  • SI/MOSI(串行输入):主机向器件写入命令和数据
  • SO/MISO(串行输出):器件向主机输出读数据、状态位
  • WP(写保护):可通过硬件保护整个存储区防止写入
  • HOLD(暂停/保持):用于在不释放 SPI 总线的情况下暂停传输
  • VCC / VSS:供电与地

(注:具体引脚编号与封装排列请以 ST 官方数据手册为准)

四、应用场景

  • 工业控制和自动化设备的配置与校准数据存储
  • 智能电表、医疗设备、楼宇控制的长期参数保存
  • 消费电子及物联网终端的序列号、固件配置、用户设置
  • 汽车电子中对数据保持性与耐久性有要求的非关键存储

五、设计与使用建议

  • 在 VCC 引脚靠近芯片端放置 0.1 μF 陶瓷旁路电容,降低电源瞬态影响。
  • 对 WP 与 HOLD 引脚建议通过上/下拉电阻根据功能需求固定逻辑电平,避免引脚悬空。
  • 写操作后应查询状态寄存器的 WIP(写进行中)位或等待典型写周期 Tw(5 ms)后再发起后续写入,避免数据冲突。
  • 对于频繁写入的数据区域,建议在系统层面对写入均衡或循环使用地址空间以延长使用寿命(wear leveling)。
  • 在多设备 SPI 总线设计中注意 CS 时序及 SCLK 空闲电平,确保各器件命令不会互相干扰。
  • 在可靠性要求极高的应用(例如关键计量或长期存储)中,建议结合多重校验/冗余机制。

六、质量与采购信息

M95640-RMN6TP 由意法半导体生产,SOIC-8 封装便于手工与贴片装配,适合现有 PCB 布局替换与量产使用。其 4M 次写周期与 200 年的数据保留特性,适用于需要长期可靠保存的小容量非易失性存储方案。采购与最终设计前,请参考 ST 官方数据手册获取完整时序图、电气参数、引脚排列与典型应用电路,以确保系统级兼容与性能达成。

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