WMSIC Electronic Components

HGSEMI HG24C256CM/TR HG24C256CM

ModelHG24C256CM/TR
PackageSOP-8
BrandHGSEMI
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 Electronic Component

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI HG24C256CM / TR
Type
HGSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
HG24C256CM/TR
Electronic Component
1
Package
SOP-8
Electronic Component
EEPROM
Electronic Component
0.236g
Electronic Component
1
Features
Built-in positions(POR)
Electronic Component
BM0259041071
Electronic Component
256Kbit
Operating Temperature
40℃~+105℃
Operating Voltage
1.7V~5.5V
Interface Type
I2C
Electronic Component
200
Clock Frequency(fc)
1MHz

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

HG24C256CM/TR 产品概述

一、产品简介

HG24C256CM/TR 是华冠(HGSEMI)推出的一款高可靠性 I2C 接口 EEPROM,单片存储容量为 256Kbit(即 32KB),采用 SOP-8 封装,适用于工业级环境。器件支持 1 MHz 的时钟频率(I2C Fast-mode Plus),工作电压范围宽(1.7V ~ 5.5V),工作温度范围 -40℃ ~ +105℃,在数据保持、写入寿命和抗干扰方面都经过优化,适合需要长期保存配置信息、日志或校准数据的嵌入式系统。

二、主要规格与特性

  • 存储容量:256Kbit(32KB)
  • 接口类型:I2C,总线速率支持最高 1 MHz(Fast-mode Plus)
  • 工作电压:1.7V ~ 5.5V,兼容单电源系统与多种电平需求
  • 工作温度:-40℃ ~ +105℃
  • 封装:SOP-8(表面贴装)
  • 写周期时间(Tw):约 3 ms(典型值,单页写入完成时间)
  • 写周期寿命:2,000,000 次(典型)
  • 数据保持(TDR):100 年(典型)
  • 写保护:支持硬件写保护(WP)引脚
  • 支持标准 I2C 应答/时序,采用多字节/页写入以提高写入效率(具体页大小以器件数据手册为准)

三、引脚与功能(概述)

SOP-8 封装常见功能引脚包括 VCC、GND、SDA、SCL、WP(写保护),以及 A0、A1、A2(地址选择或保留引脚,具体配置请参见数据手册)。在系统设计中,应注意正确连接写保护引脚以避免意外写操作,并按 I2C 规范配置上拉电阻。

四、应用场景

  • 工业控制设备:配置参数、校准数据、设备标识与固件设置的长期保存
  • 仪器仪表:采集系统的校准系数与历史记录保存
  • 通信设备:配置文件、加密密钥与非易失性参数存储
  • 消费电子与嵌入式系统:用户设置和固件小量数据备份
  • 需要超长期数据保持或高写入耐久的专用设备

五、设计与使用建议

  1. 电源与旁路
    • 在 VCC 近端放置 0.1 μF 陶瓷旁路电容,降低电源噪声与瞬态响应。
  2. I2C 总线
    • 根据总线容量与速率选择合适的上拉电阻:典型值范围 1 kΩ ~ 10 kΩ,1 MHz 总线建议较小阻值(如 1 kΩ ~ 4.7 kΩ)以满足上升时间要求。
    • 注意总线布线、终端与噪声抑制,避免长线导致信号失真。
  3. 写操作与性能
    • 单次写入会触发内部编程时间(Tw ≈ 3 ms),对大块数据请采用分页写或固件层缓存以减少总写入次数。
    • 写入完成可以采用 ACK 轮询方式检查器件忙闲状态(即在编程期间器件不响应写入地址)。
  4. 写保护与可靠性
    • 在关键数据保存场景,建议使用 WP 引脚硬件写保护并在需要写入时短时间解除。
    • 尽管器件具备高耐久与超长数据保持,仍建议对频繁写入的数据实施磨损均衡(wear leveling)和循环写入管理,以延长系统寿命。
  5. 温度与环境
    • 在高温环境(接近 +105℃)下,考虑写入速率与写入寿命可能的长期影响,重要数据可采用冗余存储策略。

六、可靠性与合规

HG24C256CM/TR 设计面向工业级应用,具有宽温度范围与高数据保持特性。器件典型数据保持 100 年、写周期寿命 200 万次,适合对数据完整性与长期保存有较高要求的系统。为满足系统级可靠性,应在 PCB 设计、热管理和电磁兼容性上做相应验证。

七、选型与封装注意事项

  • SOP-8 封装便于手工焊接与波峰/回流贴装,适合批量生产与维修更换。
  • 订购型号 HG24C256CM/TR 可按华冠的条带或托盘包装要求选择,具体包装与型号后缀含义请参阅供应商资料或与销售工程师确认。

八、结论

HG24C256CM/TR 是一款面向工业级和长期保存应用的高可靠 I2C EEPROM,宽电压与高耐久性使其在多种嵌入式、工业与通信场景中都具有良好适配性。设计时应关注 I2C 总线布局、写入管理与写保护策略,以发挥器件的最佳性能与长期可靠性。欲获得更详细的时序图、页大小与引脚封装信息,请参考华冠官方数据手册或联系供应商技术支持。

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