DS1302 Real Time Clock Module Clock Chip Module CR1220 Battery Mount ,Button Battery + Dupont Line Gift Item NO.: F05186

Note: there is no technical support

Brand new DS1302 real time clock module+ battery +5 Dupont Line,free shipping

The DS1302 is The DALLAS launched trickle charge the clock chip, containing a real-time clock / calendar and 31 bytes of static RAM, and communicate via a simple serial interface with a microcontroller. The real-time clock / calendar circuit provides seconds, minutes, days, weeks, months, years of information, the number of days per month and leap year days can be automatically adjusted. Clock operation through the AM / PM indicator 24 or 12 hours format. Between the microcontroller and the DS1302 with simple synchronous serial communication, only used three-port line: (1) RST reset (2) I / O data line (3) SCLK serial clock. The clock / RAM read / write data to a byte or up to 31 bytes character set way communication. DS1302 work, low power consumption, keep the data and clock information when power is less than 1mW

DS1302 key performance indicators:

1) Real-time clock has the capacity calculation prior to 2100 seconds, minutes, days, weeks, months, years, the ability, as well as the ability to leap year adjustment

2) 31 8-bit temporary data storage RAM

3) Serial I / O port pin number at least

4) wide range of operating voltage 2.0 5.5V

5) Operating current of 2.0V, less than 300nA

6)read / write clock or RAM data when the single-byte transmit and transmit multi-byte character set mode for both transmission

7) 8-pin DIP package or optional 8-pin SOIC package assembly under the surface

8) simple 3-wire interface

9) TTL-compatible Vcc = 5V

10) Optional industrial temperature range of -40 to +85

11) dual-supply pipe for the main power 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, diameter 3.1mm

3 battery backup genuine celestial CR2032, the voltage of 3V, the current 260mAh, non-rechargeable batteries. The theoretical data retention time is greater than 10 years!

4 crystal 32.768KHz, Japan imported crystal matching capacitor 6pF, size 2 * 6mm

5.DS1302 made large-chip 8-pin DIP chip below the IC socket for easy replacement and plug the chip

6. Module operating voltage is compatible with 3.3V/5V, can be connected with 5V and 3.3V MCU

Working temperature: 0 --- 70

Wiring methods (for example, the procedures provided by any IO port, you can modify the port defined in the program):

VCC +5 V/3.3V

GND with GND with

The CLK P02,

The DAT the P01

The RST P00

Note:

1.VCC to GND Do not reversed, so as not to burn the chip

Pull-up resistor needs to be connected to the 2.51 MCU P0 port, If your MCU is not connected to the pull-up resistor, the data cable to the other ports

Shipping list:

A 1.DS1302 real-time clock module (with DS1302 chip and battery backup, shipping before the test functions)

2 plastic fixed column 4

3.DS1302 English Data Sheet 1, Block Diagram 1, 51 single-chip driver (after purchase to be sent to your mailbox)