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Wide operating voltage 2.0V
working current 2.0V, less than 300nARead / write clock or RAM data, there are two transfer methods Single byte transfer and multi-byte transmission character group mode
8-pin DIP package or optional 8-pin SOIC package according to surface mount
simple
3-wire interface compatible with TTL Vcc = 5V
Optional industrial temperature range -40 +85
dual power supply for the main power supply and backup power supply
DS1302 real-time clock module parameters are as follows:
1.PCB for the single-panel, size: 44mm * 23mm * 1.6mm
2. With 4 positioning holes, diameter 3.1mm
3. Backup battery for the authentic celestial sphere CR2032, voltage 3V, current 260mAh, non-rechargeable battery. Theoretical data retention time greater than 10 years!
4. Crystal 32.768KHz, Japan imported crystal, matching capacitance of 6pF, size 2 * 6mm
5.DS1302 8-pin plug-in large chip made, the chip below IC Block, easy to replace and plug the chip
6. Module operating voltage is compatible with 3.3V / 5V, and 5V and 3.3V single-chip connection
7. Operating temperature: 0 ° — 70 °
Wiring method (to provide the program as an example, you can access any IO port, modify the port definition in the program can be):
VCC → + 5V / 3.3V
GND → GND
CLK → P02
DAT → P01
RST → P00
