WMSIC Electronic Components

HGSEMI AT24C64N

ModelAT24C64N
PackageDIP-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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI AT24C64N
Type
HGSEMI
Minimum package
50 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
AT24C64N
Electronic Component
1
Package
DIP-8
Electronic Component
EEPROM
Electronic Component
0.48g
Electronic Component
1
Electronic Component
BM0265148905
Electronic Component
64Kbit
Operating Temperature
40℃~+85℃
Operating Voltage
1.8V~5.5V
Interface Type
I2C
Electronic Component
100
Clock Frequency(fc)
1MHz
Electronic Component
Electronic Component

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

AT24C64N 产品概述

一、产品简介

AT24C64N 为 HGSEMI(华冠)品牌的串行电可擦除可编程只读存储器(Serial EEPROM)系列成员之一,容量为 64Kbit(65,536 位),组织为 8192 × 8 位。该器件属于低功耗、低电压的 EEPROM 家族,针对工业与商业级应用进行了优化,支持通过两线串行接口(I2C)进行访问,适合配置参数保存、机器状态记录和一般非易失性数据存储等场景。

二、主要特性

  • 存储容量:64Kbit(65,536 位),组织为 8192 × 8 位(AT24C64N)。系列还提供其他容量型号以满足不同需求。
  • 接口类型:I2C 两线串行接口,最高时钟频率 fc = 1 MHz(支持高速通信以提高数据吞吐)。
  • 工作电压:宽电压范围 1.8 V 至 5.5 V,便于在不同供电环境中使用。
  • 写周期时间:典型写周期 Tw = 5 ms(单字节或页面编程后的完成时间,请按规格书规定的最大值设计)。
  • 数据保持:数据保持时间 TDR = 100 年(在典型条件下)。
  • 擦写寿命:写周期寿命可达 1,000,000 次(耐久性优异,适合高频写入场合)。
  • 功能特性:硬件写保护功能(WP 引脚),噪声抑制功能(内置干扰抑制以提高可靠性)。
  • 工作温度范围:-40 ℃ 至 +85 ℃,满足工业级温度需求。
  • 封装选项:常见 8 引脚封装(DIP、SOP、MSOP 等节省空间封装),具体型号以封装版本为准。

三、内存组织与访问

AT24C64N 内部按字节组织,每个地址对应 8 位数据。器件支持逐字节写入与页面写入(可在一次 I2C 传输中写入多个连续字节以提高效率),具体页面大小请参考产品规格书。随机读、顺序读和当前地址读等访问模式适用于不同应用场景。

四、电气与时序要点

  • I2C 总线工作频率上限为 1 MHz,建议在系统设计中考虑总线负载和上拉电阻,以保证信号完整性并避免总线冲突。
  • 写周期(内部写入完成时间)为典型 5 ms,系统在执行写操作后应等待写完成或通过器件应答(ACK)检测写完成状态,避免在写入期间对同一地址重复写操作导致数据异常。
  • 电源管理:器件支持 1.8 V 至 5.5 V 供电范围,但在多电压系统中需注意上电/断电顺序与总线电平兼容性,必要时采用电平移位或总线隔离方案。

五、可靠性与抗干扰

AT24C64N 针对长期保存与可靠写入进行了设计:数据保持期长达 100 年,擦写寿命高达百万次,适合对数据完整性要求较高的应用。器件内置噪声抑制功能,可减少总线瞬态干扰对读写操作的影响,但在布局与布线时仍应注意电源去耦与 I2C 总线的屏蔽与滤波设计。

六、典型应用场景

  • 工业控制:参数存储、设备标定数据、生产信息记录。
  • 商业与消费电子:设置保存、用户偏好、序列号存储。
  • 通信设备与仪器仪表:固件小块配置、校准系数保存。
  • 汽车电子(在符合汽车级要求的前提下):非关键数据的长期保存。

七、封装与机械信息

AT24C64N 常见封装包括 8 引脚 DIP、8 引脚 SOP 和 8 引脚 MSOP 等节省空间的封装形式,便于在各种 PCB 设计中选型。具体封装和引脚排列请以所选器件的数据手册为准;若有特定封装或引脚需求,请咨询供应商确认。

八、选型建议与使用注意

  • 在需要长时间保存数据且写入频繁的场合,AT24C64N 的高擦写寿命与长数据保持性能非常有利。
  • 设计时应留意 I2C 总线速率与总线负载,必要时降低速率或优化上拉电阻值以保证通信可靠性。
  • 使用硬件写保护(WP 引脚)保护关键数据免受误写入;同时在固件中实现写保护控制策略。
  • 对于对温度或振动敏感的应用,请参考完整规格书中的环境与可靠性章节进行评估。

若需进一步的电气特性图、时序图或完整封装机械尺寸,请提供所需封装型号或索取 HGSEMI(华冠)官方数据手册以获取详细参数。

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