WMSIC Electronic Components

HGSEMI DS1302N

ModelDS1302N
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 DS1302N
Type
HGSEMI
Minimum package
50 管装

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
DS1302N
Electronic Component
1
Package
DIP-8
Electronic Component
Real-Time Clock (RTC)
Electronic Component
0.77g
Electronic Component
1
Features
Power Management and Battery; SRAM / NVRAM; Register Latching
Electronic Component
BM0264594677
Operating Temperature
0℃~+70℃
Operating Voltage
2V~5.5V
Operating Current
1.2mA
Interface Type
Interface
Crystal Oscillator Type
Electronic Component
Output
Electronic Component

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

HGSEMI DS1302N 实时时钟(RTC)产品概述

HGSEMI(华冠)DS1302N是一款针对低功耗、紧凑设计场景优化的实时时钟芯片,采用经典三线串行接口,精准实现秒至年的全时段计时与闰年自动校正,适配主流嵌入式系统需求。以下从核心参数、接口特性、电源优势、封装环境及应用场景展开详细说明。

一、核心功能与基础参数

DS1302N以高精度基础计时为核心,内置闰年自动判断逻辑(含2000年等世纪闰年),无需额外软件干预即可保证计时准确性。关键参数明确:

  • 电压范围:2V~5.5V宽电压,兼容3.3V/5V系统IO电平,无需电平转换;
  • 电流特性:工作电流1.2mA(动态计时/数据读写时),静态电流仅100nA(纳安级,待机模式下);
  • 晶振配置:外置32.768kHz石英晶振(需配套),无内置晶振,可灵活选择抗干扰性更强的外部晶振;
  • 附加功能:无闹钟输出引脚,专注基础计时,减少引脚占用;
  • 环境参数:工作温度0℃~+70℃,满足常规室内/轻工业环境需求。

二、三线串行接口特性

DS1302N采用CLK(时钟)、DAT(数据)、CE(片选) 三线串行接口,是设计核心优势:

  • 引脚占用少:仅需3个通信引脚,结合VCC、GND等共占用5个引脚,DIP-8封装下剩余引脚可复用,简化硬件设计;
  • 通信简单:MCU通过CE选通芯片,CLK提供同步时钟,DAT实现双向数据收发(读/写计时寄存器),无需SPI/I2C协议转换;
  • 速率灵活:时钟频率适配MCU IO速率(最高1MHz左右),满足不同数据传输需求。

三、电源性能优势

低功耗是DS1302N的关键亮点,适合电池供电或长期待机场景:

  • 宽电压兼容:2V~5.5V覆盖纽扣电池(如CR2032,3V左右)与系统电源,无需稳压电路;
  • 静态功耗极低:100nA静态电流支持纽扣电池连续工作5年以上(按200mAh容量计算),无需频繁换电;
  • 工作电流可控:1.2mA动态电流仅在读写/计时更新时激活,对系统电源负担极小。

四、封装与环境适应性

DS1302N采用DIP-8通孔封装,适配多场景开发生产:

  • 焊接便捷:手工焊接(原型开发)或自动化插件(批量生产)均可,无需特殊设备;
  • 引脚兼容:与经典DS1302引脚定义一致,便于工程师快速替换/升级;
  • 温度实用:0℃~+70℃覆盖消费电子、小型工业监测设备的常规工作环境,无需额外温控措施。

五、典型应用场景

结合参数特性,DS1302N适合低功耗、基础计时、紧凑设计场景:

  1. 便携式设备:智能手环(长期待机计时)、电子表(纽扣电池供电)、便携数据采集器;
  2. 智能家居节点:温湿度传感器(带时间戳记录)、智能插座(定时开关,无需闹钟触发);
  3. 小型工业监测:环境监测仪(数据时间戳记录)、电池供电的设备状态记录仪;
  4. 消费电子配件:电子万年历(基础时间显示)、车载时钟(适配车载电源波动)。

需注意:无闹钟输出功能,不适合需要定时触发(如闹钟、定时任务)的场景,可选择同系列带闹钟的型号。

DS1302N凭借低功耗、紧凑接口与实用计时功能,成为嵌入式系统基础计时的高性价比选择,广泛适配各类中低端计时需求场景。

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