WMSIC Electronic Components

ADI/LINEAR DS1337S+T&R DS1337S

ModelDS1337S+T&R
PackageSOIC-8
BrandADI/LINEAR
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ADI(Analog Devices) / LINEAR DS1337S+T&R
Type
ADI/LINEAR
Minimum package
2500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
DS1337S+T&R
Electronic Component
1
Package
SOIC-8
Electronic Component
Real-Time Clock (RTC)
Electronic Component
0.219g
Electronic Component
1
Features
Programmable Clock Output
Electronic Component
BM0258700101
Operating Temperature
40℃~+85℃
Operating Voltage
1.8V~5.5V
Operating Current
150uA
Interface Type
I2C
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.

DS1337S+T&R 高精度实时时钟模块产品概述

一、产品定位与核心价值

DS1337S+T&R是亚德诺半导体(ADI,原Linear Technology)推出的工业级I2C接口实时时钟(RTC),专为低功耗、宽温环境下的精准计时场景设计。其核心优势在于:在100nA静态电流下实现长期稳定计时,兼容1.8V~5.5V宽电压范围,同时内置实用闹钟功能,是工业控制、物联网终端、消费电子等领域的高性价比计时方案。

二、关键性能参数详解

1. 计时精度与晶振

  • 采用外置32.768kHz石英晶振(负载电容12.5pF),计时精度达±20ppm(0℃+50℃)、±30ppm(-40℃+85℃);
  • 支持2000-2099年闰年自动调整,输出完整时间格式(星期、时/分/秒、月/日/年),可切换12/24小时制。

2. 功耗特性

  • 静态电流(备用电池模式)仅100nA,典型CR2032电池可支持10年以上计时续航;
  • 工作电流(I2C通信时)150μA,大幅降低系统整体功耗,适配低功耗MCU。

3. 电压与温度范围

  • 工作电压:1.8V~5.5V,兼容主流MCU(如STM32、ATmega系列)的IO电压;
  • 工作温度:-40℃~+85℃,符合工业级环境要求,可在户外、车载等场景稳定运行。

4. 封装与包装

  • 封装:SOIC-8小型表面贴装(尺寸5.2mm×6.0mm×1.75mm),便于PCB紧凑布局;
  • 包装:T&R(Tape and Reel)编带包装,适配自动化贴片生产,每盘2500片。

三、接口与功能特性

1. I2C串行接口

  • 固定I2C地址0x68(7位),无需额外地址配置,简化系统设计;
  • 支持标准(100kHz)与快速(400kHz)通信模式,兼容主流I2C总线。

2. 闹钟与中断功能

  • 内置双闹钟通道,可配置秒/分/时/日/星期触发条件;
  • 闹钟触发时输出INT引脚低电平(或高电平,可配置),支持MCU唤醒、系统报警等功能。

3. 掉电保护与写保护

  • 内置掉电检测电路,主电源低于阈值时自动切换至备用电池,确保计时不中断;
  • WP引脚支持写保护功能,拉低时禁止修改时间寄存器,防止意外误操作。

4. 其他实用功能

  • 夏令时调整(可手动设置偏移量);
  • 时间戳记录(可存储单次事件时间);
  • 寄存器清零功能(便于初始化)。

四、可靠性与环境适应性

  • 封装符合RoHS环保标准,无铅无卤;
  • 焊接可靠性高,适配工业级PCB制程;
  • 平均无故障时间(MTBF)超过100万小时,满足长期稳定运行需求。

五、典型应用场景

  1. 工业控制设备:PLC、远程监测终端、智能传感器节点(需长期待机计时);
  2. 消费电子:智能家居(智能门锁、安防摄像头)、便携式医疗设备(血糖仪、血压计);
  3. 车载电子:车载导航、行车记录仪(宽温环境计时);
  4. 物联网终端:低功耗IoT节点(需时间同步与低功耗)。

六、选型与使用注意事项

  1. 晶振选型:必须使用32.768kHz、12.5pF负载电容的石英晶振,晶振需靠近RTC芯片布局(减少寄生电容);
  2. 备用电池:推荐3V纽扣电池(如CR2032),正极接VBAT引脚,负极接地(反向连接会损坏芯片);
  3. 电源设计:主电源与电池间加二极管隔离(防止电池反向放电),WP引脚可接MCU IO或地;
  4. 通信注意:I2C总线需10kΩ上拉电阻,通信速率不超过400kHz,避免总线干扰。

DS1337S+T&R以其低功耗、高可靠性和灵活功能,成为各领域精准计时需求的优选方案,尤其适合对功耗敏感且需长期稳定运行的系统设计。

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