DS1302N

Les images sont à titre de référence seulement

DS1302N

IC RTC CLK/CALENDAR SER 8-DIP

100% original & Nouveau

24 heures prêtes à expédier

Garantie 365 jours

RFQ et Obtenez plus de rabais

Spécifications

Supplier Analog Devices Inc./Maxim Integrated
Package Tube
ProductStatus Active
Type Clock/Calendar
Features Leap Year, NVSRAM, Trickle-Charger
MemorySize 31B
TimeFormat HH:MM:SS (12/24 hr)
DateFormat YY-MM-DD-dd
Interface 3-Wire Serial
Voltage-Supply 2V ~ 5.5V
Voltage-SupplyBattery 2V ~ 5.5V
Current-Timekeeping(Max) 0.3µA ~ 1µA @ 2V ~ 5V
OperatingTemperature -40°C ~ 85°C
MountingType Through Hole
Package/Case 8-DIP (0.300, 7.62mm)

Vue d'ensemble

Description

DS1302N is a stand-alone real-time clock/calendar with battery-backup and non-volatile RAM. It keeps time (seconds, minutes, hours, date, month, day-of-week, year) and provides 56 bytes of NV RAM for data storage. It uses a simple 3-wire serial interface (CE, SCLK, I/O), not I2C or SPI, and can be powered from main supply (2–5.5 V) or a backup VBAT when power is off. It includes a 32.768 kHz oscillator and a trickle-charge circuit to charge a backup battery from the main supply. Time values are stored in BCD and support 12- or 24-hour formats; a clock-halt bit in seconds can stop the clock for debugging. Read/write operations are done via an address/data protocol. Packages include DIP8 and various SMD options. Common applications are clocks, timers, and data logging with timestamping. DS1302N is the RoHS-compliant variant of the DS1302.

Features

DS1302N features (concise):
- Real-time clock/calendar with seconds, minutes, hours, day, date, month, year; supports leap years and 12/24-hour formats
- 32.768 kHz oscillator input for accurate timekeeping
- Battery backup via VBAT to preserve time when VCC is off
- Trickle-charge circuit to maintain a backup source (battery or supercapacitor)
- 31 bytes of on-chip RAM for user data storage (NV RAM)
- 3-wire serial interface: CE (chip enable), CLK, and IO (bidirectional data line) for easy read/write of time and RAM
- Simple register map for time and RAM access; no external RAM needed
- Available in common 8-pin packages suitable for compact designs
Optional notes:
- Operates from VCC with power-loss backup via VBAT; designed for low-power, battery-backed timing applications.

Package

DS1302N is an 8-pin device, typically in a DIP-8 (through-hole) package; it is also available in an 8-pin SOIC/SO-8 surface-mount package.

Pinout

- Pin count: 8 pins (DIP-8/SO-8 package).
- Function: Serial real-time clock/calendar with battery backup. Uses a 3-wire interface (CE, SCLK, IO) to read/write time and RAM. Requires external 32.768 kHz crystal connected to X1/X2, and a VBAT backup supply. It also provides 31 bytes of battery-backed RAM.

Manufacturer

- Manufacturer: Dallas Semiconductor Corp.
- What kind of company: An American semiconductor company that designs and manufactures integrated circuits (ICs), including real-time clocks and 1‑Wire devices; it was later acquired by Maxim Integrated (now part of Analog Devices).

Application

DS1302N is a low-power real-time clock with RAM and alarm/timer features. Common applications:
- Embedded systems for real-time clock and calendar
- Data loggers and metering for time-stamped records
- Alarm/timer and scheduling in appliances and automation
- Backed-up timekeeping during power loss (battery backup)
- Digital clocks, wearables, and IoT devices
- Instrumentation requiring calendar, timing, and event stamping

Expédition

Méthodes d'expéditionNous

offrir des services d'expédition mondiaux par DHL, FedEx, TNT, UPS ou tout autre expéditeur de votre choix.


Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

Paiements

Payment Methods

Le terme de paiement est 100% prépayé.

Actuellement, nous n'acceptons que les méthodes de paiement ci-dessous:

1. PayPal

2. Carte de crédit/débit

3. Transfert bancaire

Similaire