WMSIC Electronic Components

FMD FT93C46A-ESG-T FT93C46A

ModelFT93C46A-ESG-T
PackageSOP-8
BrandFMD
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
FMD FT93C46A-ESG-T
Type
FMD
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FMD
Electronic Component
FT93C46A-ESG-T
Electronic Component
1
Package
SOP-8
Electronic Component
EEPROM
Electronic Component
1g
Electronic Component
1
Features
Built-in Latch(WEL)
Electronic Component
BM0264574132
Electronic Component
1Kbit
Operating Temperature
40℃~+85℃
Operating Voltage
1.7V~5.5V
Interface Type
SPI
Clock Frequency(fc)
2MHz
Electronic Component
Electronic Component

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

FT93C46A-ESG-T 产品概述

一、产品简介

FT93C46A-ESG-T(品牌:FMD / 辉芒微)是一款基于SPI接口的非易失性串行EEPROM,存储容量为1Kbit(128字节),面向低功耗、可靠性要求高的嵌入式系统与工业控制应用。器件采用标准SOP-8封装,支持宽电压范围和工业级温度,兼顾灵活性与可靠性。

二、主要特性

  • 接口类型:SPI(串行外设接口),支持常规SPI时序。
  • 存储容量:1Kbit(128字节)。
  • 时钟频率(fc):最高2MHz,适合多数微控制器的SPI总线速率。
  • 写周期时间(Tw):典型5ms,适用于单次写入完整字节或小量数据。
  • 内置写使能锁存器(WEL),用于写保护与防误写。
  • 工作电压:1.7V ~ 5.5V,支持1.8V、3.3V及5V系统。
  • 工作温度范围:-40℃ ~ +85℃,满足工业级环境要求。
  • 封装:SOP-8,便于常规贴片焊接与手工焊接。

三、电气与时序要点

  • 时钟限制:为保证数据完整性与兼容性,SPI时钟不应超过2MHz。
  • 写操作流程:写入前需先置位写使能锁存器(WEL),发出写命令并传输数据后,需等待写周期(Tw ≈ 5ms)完成或通过状态查询确认写完成。
  • 供电要求:在电源稳定前避免发出写命令;建议在VCC端并联0.1µF陶瓷去耦电容,靠近器件引脚布局。
  • 电平兼容:宽工作电压允许与多种MCU直接接口,但在电压域不同的情况下建议加电平匹配或确保IO容忍范围。

四、使用与设计注意事项

  • 写保护:充分利用WEL及系统层的写保护策略,避免在关键数据未备份时发生误写。
  • 时序控制:CS(片选)在空闲时应保持高电平;在数据传输期间保持稳定的时序边沿,避免抖动引起的错误。
  • 可靠写入:对于关键参数建议多次校验读回数据或采用冗余校验(CRC、校验和)以提高可靠性。
  • PCB布局:尽量缩短SCLK、MOSI、CS等信号线长度,避免与高速信号并行走线,减小串扰。

五、典型应用场景

  • 工业控制器参数存储(标定数据、配置信息)
  • 消费类电子设备的固件辅助存储与校准数据
  • 通讯设备的MAC地址或序列号存储
  • 仪器仪表、医疗设备等需长期保存配置信息的场合

六、封装与订购信息

  • 封装形式:SOP-8,适合自动贴装与标准焊接工艺。
  • 生产与采购:型号:FT93C46A-ESG-T,品牌:FMD(辉芒微)。建议向正规代理或厂商渠道索取完整规格书(Datasheet)与样品,以便进行电路验证与长期可靠性评估。

七、可靠性与数据保持

  • 数据保留(TDR):100年(典型),适合对长期保存要求高的应用场景。
  • 温度与寿命:支持-40℃至+85℃工作温度,配合合理的写入频率与写保护策略,可获得稳定的长期性能。

总结:FT93C46A-ESG-T以其宽电压范围、工业级温度、长数据保持和内置写使能保护,适合嵌入式系统中对小容量非易失性存储的需求。在设计中应重视写周期管理与电源/信号完整性,以发挥器件的可靠性优势。

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