Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
RENESAS AT45DB321E-MHF-Y AT45DB321E
Configuration
1 options
Configuration
21+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RENESAS AT45DB321E-MHF-Y
- Type
- RENESAS
- Minimum package
- 570 托盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RENESAS
- Electronic Component
- AT45DB321E-MHF-Y
- Electronic Component
- 1
- Package
- UDFN-8-EP(5x6)
- Electronic Component
- NOR FLASH
- Electronic Component
- 0.72g
- Electronic Component
- 1
- Electronic Component
- BM0264335265
- Operating Voltage
- 2.3V~3.6V
- Interface Type
- SPI
- Electronic Component
- 100000
- Clock Frequency(fc)
- 85MHz
- Electronic Component
- Electronic Component
- Electronic Component
- 570
- (t BE)
- 45ms@(4KB)
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
AT45DB321E-MHF-Y 产品概述
一、产品简介
AT45DB321E-MHF-Y 为 RENESAS（瑞萨）出品的 32Mbit NOR Flash，属于 Single SPI DataFlash 系列。器件工作电压范围 2.3V 至 3.6V（典型 3.0V），工作温度范围 -40°C 到 +85°C，封装为 UDFN-8-EP（5×6 mm），以托盘（Tray）方式供货，适合对非易失性存储、代码存放与数据记录有较高可靠性与性能要求的嵌入式系统。
二、主要参数
- 接口类型：Single SPI
- 最高时钟频率 (fc)：85 MHz
- 存储容量：32 Mbit (4 MByte)
- 工作电压：2.3 V ~ 3.6 V（3.0 V 标称）
- 擦写寿命：100,000 次
- 页写入时间 Tpp：5.5 ms（典型）
- 块擦除时间 tBE：45 ms @ 4 KB（典型）
- 数据保留（TDR）：20 年
- 工作温度：-40°C ~ +85°C
- 封装：UDFN-8-EP (5×6 mm)，托盘包装
三、关键特性
- 单 SPI 接口，最高 85 MHz，可满足主流 MCU/MPU 的高带宽读取需求。
- 高耐久性：擦写寿命 10^5 次，适合频繁更新的配置或日志存储。
- 快速写入与块擦除：页写入 5.5 ms、4KB 块擦除约 45 ms，有利于优化固件更新与文件系统擦写延迟。
- 长期可靠性：典型 20 年数据保留，适用于工业与消费类长期部署产品。
四、典型应用场景
- 嵌入式系统代码与启动存储（Boot/firmware）
- 配置参数与校准数据保存
- 事件日志与数据记录器
- 工业控制、仪表、智能设备与物联网终端
五、设计与使用建议
- 电源与去耦：在 VCC 引脚附近放置 0.1 μF 与 1 μF 去耦电容，靠近器件地与电源引脚布局，抑制供电瞬变，确保写/擦操作稳定。
- PCB 布线：SPI 时钟可达 85 MHz，应缩短 MOSI/MISO/SCLK 路径并使用阻抗匹配与合适的返回路径，必要时在高速线路串联小阻（10–33 Ω）以抑制反射。
- 写入管理：在擦写或页写操作期间轮询器件忙/就绪状态，避免在忙期间断电或再次触发写命令；优化写入策略以平衡擦写寿命（如磨损平衡）。
- 电压与时序：确保主控供电和 IO 电平与器件规格兼容（2.3–3.6 V），遵守上电/下电时序以降低锁定或数据损坏风险。
- ESD 与保护：pcb 设计考虑 ESD 芯片或滤波网络保护敏感引脚，特别是外露 IO 和编程接口。
六、封装与采购信息
型号：AT45DB321E-MHF-Y
品牌：RENESAS（瑞萨）
封装：UDFN-8-EP (5×6 mm)，Tray 托盘供货。
在选型与量产前，建议参阅瑞萨最新版的数据手册获取完整电气特性、引脚定义与命令集时序，以便在硬件与固件层面进行准确实现与验证。
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