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DS1337S+T&R

I2C RTC with 2 alarms, trickle charger, 1.8-5.5V, SOIC-8 T&R

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Pieza del fabricante：

DS1337S+T&R

Paquete：

SOIC-8 (4.9 x 3.9 mm, 1.27mm pitch)

Marca：
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Descripción

Productos

The DS1337S+T&R from Analog Devices/Maxim Integrated is a low-cost I2C real-time clock with two time-of-day alarms and trickle-charge capability in an 8-pin SOIC package.

Especificaciones

Fabricante Analog Devices (Maxim)
Interface I2C (400kHz)
Time Functions Seconds through Century
Alarms 2 (time-of-day)
Tensión de alimentación 1.8V to 5.5V
Batería de reserva Yes (VBAT pin)
Trickle Charger On-chip
Crystal 32.768 kHz external
OSC Current 500nA (battery mode)
Paquete SOIC-8 (150mil)
Temperatura de funcionamiento -40°C to +85°C

Características

  • I2C interface (400kHz compatible)
  • Two time-of-day alarms
  • On-chip trickle charger
  • Battery backup with automatic switch
  • 1.8V to 5.5V operation
  • 500nA battery backup current

Aplicaciones

  • Embedded systems timekeeping
  • Data logging timestamps
  • Power management scheduling
  • Medical devices

The DS1337S+T&R from Analog Devices (Maxim) is a low-cost I2C real-time clock providing seconds through century calendar with two programmable time-of-day alarms. The on-chip trickle charger simplifies backup battery management, while the 500nA battery-backup current maximizes battery life. The T&R suffix indicates tape-and-reel packaging. Operates from 1.8V to 5.5V with automatic VCC/VBAT power switching.

The DS1337 uses an external 32.768kHz crystal for timekeeping. An internal oscillator divides the crystal frequency to 1Hz for clock counting. The I2C interface provides read/write access to time, alarm, and control registers. When VCC drops below VBAT, the power-switch circuit automatically connects VBAT to the oscillator and timekeeping logic, maintaining clock operation with minimal current draw.

Pin Nombre Función
1 VCC Primary supply (1.8-5.5V)
2 X1 Crystal input
3 X2 Crystal output
4 GND Suelo
5 SDA I2C data
6 SCL I2C clock
7 INTB/SQW Interrupt/Square-wave output
8 VBAT Battery backup input
  • Embedded system timekeeping
  • Data logging timestamps
  • Alarm-based wake-up scheduling
  • Industrial controller real-time tracking
Fabricante Número de pieza Notas
ADI DS1337C With crystal trimming
Microchip MCP7940N-I/SN Similar I2C RTC
NXP PCF8523T/1 Alternative RTC
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Tel / WhatsApp: +86 13760382860

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Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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