WMSIC Electronic Components

PUYA P24C256B-SSH-MIR P24C256B

ModelP24C256B-SSH-MIR
PackageSOP-8
BrandPUYA
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
PUYA P24C256B-SSH-MIR
Type
PUYA
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PUYA
Electronic Component
P24C256B-SSH-MIR
Electronic Component
1
Package
SOP-8
Electronic Component
EEPROM
Electronic Component
0.12g
Electronic Component
1
Features
Built-in positions(POR)
Electronic Component
BM0258741089
Electronic Component
256Kbit
Operating Temperature
40℃~+125℃
Operating Voltage
1.7V~5.5V
Interface Type
I2C
Electronic Component
100
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.

P24C256B-SSH-MIR 产品概述

一、产品简介

P24C256B-SSH-MIR 是普冉(PUYA)推出的一款符合 24C 系列规范的串行 I2C EEPROM,存储容量为 256 Kbit(32 KB)。器件支持高达 1 MHz 的 I2C 时钟频率,工作电压范围宽(1.7 V ~ 5.5 V),工作温度覆盖工业级 -40 ℃ ~ +125 ℃,适用于对数据长期保留和高可靠性有要求的嵌入式存储场景。

二、主要规格(关键参数)

  • 接口类型:I2C(双线串行总线)
  • 存储容量:256 Kbit(等于 32 KB)
  • 时钟频率 (f c):最高 1 MHz
  • 工作电压:1.7 V ~ 5.5 V
  • 写周期时间 (T w):典型 5 ms(每页写入完成所需时间)
  • 数据保留 (T DR):100 年
  • 写周期寿命:1,000,000 次(每字节/每单元)
  • 工作温度:-40 ℃ ~ +125 ℃
  • 品牌:PUYA(普冉)
  • 封装:请以具体数据手册为准

三、关键特性与优势

  • 宽电压范围,便于与不同供电域的微控制器直接接口,降低电源设计复杂度。
  • 高速 I2C 支持(最高 1 MHz),适合需要较快读出或在总线上与多设备通信的应用。
  • 长数据保持时间与高写入寿命,适合需要长期保存配置、校准数据或日志的工业及仪器设备。
  • 工业级温度范围,可靠性高,适用于恶劣环境。

四、典型应用场景

  • 工业控制器、PLC 的配置信息与校准数据存储。
  • 仪器仪表与医疗设备中的参数保存与历史记录。
  • 通信设备、消费电子的序列号、设备配置与固件辅助数据。
  • 汽车电子(非安全关键应用)、物联网终端、智能模块的参数存储。

五、系统设计注意事项

  • I2C 总线:SDA/SCL 需外接上拉电阻,上拉阻值根据总线电容和所选频率调整;高速(1 MHz)时需保证较小总线容性和足够驱动能力。
  • 写入管理:单次写入会触发写周期(T w ≈ 5 ms),在此期间器件忙(内部写保护)。建议使用写完成轮询(ACK polling)或适当延时,避免在写周期内再次发起写操作。
  • 擦写与寿命:尽管器件提供高达 1,000,000 次写入寿命,仍建议对频繁写入位置做软件层面的磨损平衡或缓存策略,以延长系统寿命。
  • 数据完整性:关键数据建议加校验(CRC、校验和)或多副本存储,提升异常断电或写入失败时的数据可靠性。
  • 电源与上电序列:尽量保证器件在稳定电源下工作,避免在 Vcc 不稳定时进行写操作;特殊应用可参考数据手册中的电源抖动与稳态要求。

六、可靠性与质量建议

P24C256B-SSH-MIR 提供长期数据保持与高写入次数,适合寿命要求高的产品。实际可靠性与最终寿命还受工作温度、写入分布与系统电磁环境影响。建议在产品验证阶段做加速老化、写入循环与断电恢复测试,确认在目标工况下的表现。

七、选型与采购提示

  • 封装与引脚信息请以普冉官方数据手册为准,量产时确认封装尺寸、焊盘布局和公司所需的 SMD 序列。
  • 若系统需更高速度或额外功能(例如硬件写保护引脚、页大小不同),请在比较不同型号时查阅完整规格书。
  • 建议向授权分销或厂商直接获取器件与最新数据手册,确保器件版本与性能满足项目需求。

八、总结

P24C256B-SSH-MIR 是一款面向工业与通用嵌入式存储需求的 256 Kbit I2C EEPROM,凭借宽电压、工业温度范围、长数据保持与高写入寿命,适合用作配置存储、校准数据和小容量日志保存。设计时关注总线布局、写周期管理与数据完整性策略,可有效发挥器件的可靠性与寿命优势。若需更详细的引脚、时序与页结构信息,请参考普冉官方数据手册。

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