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기능성모듈(MCU, Utility) > MCU,Avr,Arduino

DS1302 RTC [38KHz]

-> 아두이노,라즈베리,AVR등에 사용되는 REAL TIME CLOCK모듈
1. DS1302 real time clock module
2. battery CR2032 내장
3. 시,분,초 요릴,월 년
4.전원 DC5V

＊가격 : 3,300 원

DS1302 real time clock module

DALLAS DS1302 is the company launched a trickle charge the clock chip , which contains a real-time clock / calendar and 31 bytes of static RAM, communicate via a simple serial interface with the microcontroller . Real-time clock / calendar circuit provides seconds , minutes, hours , days, weeks, months , years of information , the number of days per month and days can be automatically adjusted for leap year . Clock operation may indicate decided to use 24 or 12-hour format by AM / PM. Between the DS1302 can simply use synchronous serial microcontroller way to communicate , just use three port lines : (1) RST Reset (2) I / O data lines (3) SCLK Serial Clock . Clock / RAM read / write data up to a 31 -byte or byte character set mode of communication . DS1302 low power consumption while working to keep the data and clock information power of less than 1mW
DS1302 key performance indicators:
Real-time clock with before 2100 can be calculated in seconds, minutes , hours, days, weeks, months , years of capacity , as well as the ability to leap year adjustment

31 8 temporary data storage RAM
Serial I / O ports such a way that a minimum number of pins
Wide range of operating voltage 2.0 5.5V
When operating current 2.0V, less than 300nA

Read / There are two ways to send single-byte and multi-byte transfer mode transmission character set data write clock or RAM
8-pin DIP or optional 8- pin SOIC surface mount package according to
Simple 3-wire interface
Compatible with TTL Vcc = 5V
Optional industrial temperature range of -40 to +85
Dual power tube for the main power supply and backup power supply
DS1302 real time clock module parameters are as follows :

1.PCB single panel size : 44mm * 23mm * 1.6mm
2 with four positioning holes , 3.1mm in diameter
3 backup battery is genuine celestial CR2032, voltage 3V, current 260mAh, non- rechargeable batteries. Theoretical data hold time is more than 10 years !
4 Crystal 32.768KHz, Japan imported crystal, matching capacitance 6pF, size 2 * 6mm
5.DS1302 made large 8-pin DIP chips, IC chips below seat , easy to replace and swap chips
6 module operating voltage compatible 3.3V/5V, can be connected to 5V and 3.3V microcontroller
7 Working temperature :. 0 ° --- 70 °

Wiring ( supplied with the program , for example, can be connected to any IO port, modify the port can be defined in the program ) :
VCC → +5 V/3.3V GND → GND CLK → P02 DAT → P01 RST → P00

Note:
1.VCC and GND Do not reversed , it would burn the chip
2.51 MCU P0 port requires pull-up resistor , if your device does not have a pull-up resistor can be connected to other ports data lines

*회로설계,주문제작,개발용 부품 및 모듈 전문점

유틸전자주식회사
서울 용산구 한강로 3가 16-9 전자랜드 본관 광장층 C31호

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