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DS1302 Real Time Clock (RTC) IC
Pin Configuration
Pin No. | Pin Name | Description |
1 | Vcc2 | Second supply input, when Vcc2 is greater than Vcc1 + 0.2V, DS1302 powers through this pin |
2,3 | X1 and X2 | For connecting external crystal oscillator of 32.768kHz |
4 | GND | Ground |
5 | CE | This pin set to HIGH during a Read or a Write |
6 | I/O (Data Line) | This is the bi-directional data pin to 3-wire interface |
7 | SCLK(Serial Clock) | Used to synchronize data movement on the serial interface |
8 | Vcc1 | Rechargeable energy source connected to this pin |
Features
- Real-time clock counts minutes, seconds, date, hours, month day of the week, year and leap-year compensation upto 2100.
- Single and Multiple (Burst mode) data transfer for Read and Write of Clock or RAM data
- 31*8 battery-backed general purpose RAM
- Simple interface using 3-wire
- TTL-compatible
- 2V to 5.5V full operation
- Compact size
- Available Package: 8-pin DIP, 8-pin SO
Technical Specifications
- Supply voltage (typically): 3.3V
- Voltage range on any pin (with respect to ground): -0.5V to 7.0°C
- Operating Temperature (Commercial): 0°C to +70°C
- Operating Temperature (Industrial): -40°C to +85°C
- Storage Temperature range: -55°C to +125°C
- Soldering Temperature: 260°C
DS1302 Real Time Clock (RTC) IC
Pin Configuration
Pin No. | Pin Name | Description |
1 | Vcc2 | Second supply input, when Vcc2 is greater than Vcc1 + 0.2V, DS1302 powers through this pin |
2,3 | X1 and X2 | For connecting external crystal oscillator of 32.768kHz |
4 | GND | Ground |
5 | CE | This pin set to HIGH during a Read or a Write |
6 | I/O (Data Line) | This is the bi-directional data pin to 3-wire interface |
7 | SCLK(Serial Clock) | Used to synchronize data movement on the serial interface |
8 | Vcc1 | Rechargeable energy source connected to this pin |
Features
- Real-time clock counts minutes, seconds, date, hours, month day of the week, year and leap-year compensation upto 2100.
- Single and Multiple (Burst mode) data transfer for Read and Write of Clock or RAM data
- 31*8 battery-backed general purpose RAM
- Simple interface using 3-wire
- TTL-compatible
- 2V to 5.5V full operation
- Compact size
- Available Package: 8-pin DIP, 8-pin SO
Technical Specifications
- Supply voltage (typically): 3.3V
- Voltage range on any pin (with respect to ground): -0.5V to 7.0°C
- Operating Temperature (Commercial): 0°C to +70°C
- Operating Temperature (Industrial): -40°C to +85°C
- Storage Temperature range: -55°C to +125°C
- Soldering Temperature: 260°C
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