WMSIC Electronic Components

PUYA P25D40H-SSH-IT P25D40H

ModelP25D40H-SSH-IT
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
PUYA P25D40H-SSH-IT
Type
PUYA
Minimum package
1000 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PUYA
Electronic Component
P25D40H-SSH-IT
Electronic Component
1
Package
SOP-8
Electronic Component
NOR FLASH
Electronic Component
0.153g
Electronic Component
1
Electronic Component
BM0264601935
Electronic Component
4Mbit
Operating Temperature
25℃~+85℃
Operating Voltage
2.3V~3.6V
Current
9uA
Interface Type
SPI
Electronic Component
100000
Clock Frequency(fc)
70MHz

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

P25D40H-SSH-IT 产品概述

一、产品简介

P25D40H-SSH-IT 为普冉(PUYA)推出的一款 4Mbit 串行 SPI 闪存,采用通用 SOP-8 封装,工作电压范围 2.3V ~ 3.6V,最高 SPI 时钟频率可达 70MHz。器件以低功耗、较高耐久性与可靠的数据保持性能为设计目标,适用于需要非易失性代码与数据存储的各类嵌入式系统。

二、主要参数概览

  • 存储容量:4Mbit(512Kbyte)
  • 接口类型:SPI(标准四线串行接口)
  • 最大时钟频率(fc):70MHz
  • 工作电压:2.3V ~ 3.6V
  • 待机电流:典型 9μA(节省功耗)
  • 擦写寿命:100,000 次(典型)
  • 页写入时间(Tpp):约 2ms(单页编程)
  • 数据保持(TDR):10 年
  • 工作温度范围:−25°C ~ +85°C
  • 封装形式:SOP-8
  • 品牌:PUYA(普冉)

三、功能与优势

  • 高速:支持最高 70MHz 时钟频率,满足启动代码和执行速度要求较高的场景。
  • 低功耗:待机电流仅约 9μA,有助于电池供电或低功耗应用延长待机时间。
  • 良好耐久性:100k 次擦写循环适合绝大多数嵌入式固件更新与参数存储需求。
  • 稳定可靠:10 年数据保持保证长期存储可靠性,适用于产品寿命周期较长的设备。
  • 标准封装:SOP-8 便于手工焊接与自动贴片生产,适配常见 PCB 设计。

四、典型应用场景

  • MCU 启动代码、Bootloader 存储
  • 嵌入式系统固件与配置参数保存
  • 人机界面资源(字体、图像、界面资源)存储
  • IoT 节点与通信设备的非易失性日志或配置
  • 工业控制设备的固件及参数备份

五、设计与使用建议

  • 电源去耦:在 VCC 引脚靠近封装处放置 0.1μF 陶瓷去耦电容以抑制电源干扰,保证高速时钟下稳定工作。
  • 引脚状态:对 CS、WP、HOLD 等控制引脚在空闲时使用上拉或下拉电阻以避免误触发(具体电阻值按系统需求选择)。
  • 写操作优化:尽量采用页写入对齐操作,避免大量零散字节写入以减少写入次数与延长 Flash 寿命。
  • 电平兼容:若 MCU 工作电压不同(如 1.8V),应使用合适的电平转换器以保护器件。
  • PCB 布局:高频信号线(SCLK、MOSI、MISO)走线尽量短且保持阻抗连续,CS 信号独立返回驱动端,减少串扰。

六、可靠性与存储/处理注意

  • ESD 防护:焊接与调试时注意静电防护,遵守常规防静电操作流程。
  • 焊接工艺:按 SOP-8 封装的推荐回流曲线进行焊接,避免过高温度与超时。
  • 湿度敏感度:若器件说明书标注有潮湿敏感等级(MSL),请按相应要求进行烘烤与存储。
  • 使用寿命管理:对频繁写入场景建议实现软件层面的磨损均衡(wear leveling)与坏块管理策略,以延长产品寿命。

总结:P25D40H-SSH-IT 在容量、速度、功耗和可靠性方面具备良好平衡,适合多数嵌入式存储需求。结合合理的硬件布线与软件写入策略,可以在消费类、工业级与物联网设备中实现稳定的非易失性存储方案。如需更详细的引脚定义、时序与电气特性数据,请参考厂家数据手册或联系 PUYA 技术支持。

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