WMSIC Electronic Components

PUYA PY25Q256HB-SUH-IT PY25Q256HB

ModelPY25Q256HB-SUH-IT
PackageSOP-8-208mil
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 PY25Q256HB-SUH-IT
Type
PUYA
Minimum package
9600 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PUYA
Electronic Component
PY25Q256HB-SUH-IT
Electronic Component
1
Package
SOP-8-208mil
Electronic Component
NOR FLASH
Electronic Component
0.316g
Electronic Component
1
Features
positions
Electronic Component
BM0264683732
Electronic Component
256Mbit
Operating Temperature
40℃~+85℃
Operating Voltage
2.7V~3.6V
Current
20uA
Interface Type
SPI
Electronic Component
100000

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

PY25Q256HB-SUH-IT 产品概述

一、产品简介

PY25Q256HB-SUH-IT 是普冉(PUYA)推出的一款 256Mbit 串行闪存器件,采用 SPI 接口,最高时钟频率可达 133MHz,工作电压范围 2.7V 至 3.6V,工作温度 -40℃ 至 +85℃。器件专为消费类高容量应用设计,支持将程序代码映射并从外部或嵌入式 RAM 中执行,具备灵活的擦除架构以适配多种系统需求。

二、主要特点

  • 容量:256 Mbit(32 MByte)
  • 接口:标准 SPI(串行外设接口)
  • 速度:最高 133 MHz 时钟(可满足高速代码和数据读取)
  • 低功耗:待机(静态)电流仅 20 μA
  • 多重写保护:硬件写保护、写使能锁存及软件写保护
  • 上电复位(POR):保证系统上电时处于已知安全状态
  • 封装:SOP-8-208mil,便于传统 PCB 装配

三、关键参数

  • 擦写寿命:100,000 次(典型)
  • 页写入时间(Tpp):约 250 μs
  • 写周期时间(Tw):约 2 ms
  • 块擦除时间(tBE):约 150 ms
  • 数据保持(TDR):20 年
  • 工作电压:2.7V ~ 3.6V
  • 工作温度范围:-40℃ ~ +85℃

四、性能与可靠性

器件在速度与可靠性之间取得平衡:133MHz 的最高频率可支持快速代码加载与执行,低待机电流适用于电池供电设备;100k 次擦写寿命与 20 年的数据保持能力能满足多数消费类产品的生命周期需求。灵活的擦除单元(页/块/整片)便于在不同应用场景下优化擦写效率与闪存寿命。

五、典型应用

  • 消费电子:机顶盒、智能家居控制器、多媒体播放器
  • 嵌入式系统:MCU 外挂代码存储、固件升级存储
  • 通信终端:路由器、网关配置和日志存储
  • 工业轻量级存储场景:需要长时间数据保留的配置参数存储

六、封装与引脚注意事项

SOP-8-208mil 封装便于手工焊接和波峰/回流生产。设计 PCB 时建议:

  • 在 VCC 附近放置 0.1μF 陶瓷去耦电容,并考虑 1μF~10μF 的大电容用于上电稳定;
  • 对 WP/HOLD 引脚根据功能需求通过上/下拉电阻设定默认状态,避免浮空;
  • SPI 时序对 PCB 长走线敏感,走线应尽量短且匹配阻抗,必要时加上系列阻抗控制。

七、设计与使用建议

  • 采用适当的擦写与写入策略(例如分散写入、磨损均衡)以延长器件寿命;
  • 在固件设计中使用写使能锁存(WEL)与软件写保护配合硬件 WP,提高数据安全性;
  • 在系统上电/掉电过程中,确保 POR 生效后再访问闪存,避免未定义操作导致数据损坏;
  • 做好固件升级与回退机制,利用块擦除与页写入时间参数优化升级流程,尽量在闲时或低负载时进行大规模擦写。

PY25Q256HB-SUH-IT 以其高速 SPI 性能、低功耗和多重保护机制,为各种需外部闪存的消费和嵌入式应用提供了可靠的存储解决方案。若需详细时序、命令集和电气特性图,请参考厂家数据手册。

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