PCF8563-03
PCF8563
Overview
Part: PCF8563
Type: Real-Time Clock/Calendar
Key Specs:
- Clock operating voltage: 1.0 V to 5.5 V
- Low backup current: typical 0.25 μA at VDD = 3.0 V and Tamb = 25 °C
- I2C-bus interface speed: 400 kbit/s
- Oscillator crystal frequency: 32.768 kHz
Features:
- Provides year, month, day, weekday, hours, minutes, and seconds
- Century flag
- Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz)
- Alarm and timer functions
- Integrated oscillator capacitor
- Internal Power-On Reset (POR)
- I2C-bus target address: read A3h and write A2h
- Open-drain interrupt pin
- Voltage-low detector
Applications:
- Mobile telephones
- Portable instruments
- Electronic metering
- Battery-powered products
Package:
- HVSON10
- SO8
- TSSOP8
Features
- • Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
- • Century flag
- • Clock operating voltage: 1.0 V to 5.5 V at room temperature
- • Low backup current; typical 0.25 μA at VDD = 3.0 V and Tamb = 25 °C
- • 400 kHz two-wire I2C-bus interface (at VDD = 1.8 V to 5.5 V)
- • Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz)
- • Alarm and timer functions
- • Integrated oscillator capacitor
- • Internal Power-On Reset (POR)
- • I 2C-bus target address: read A3h and write A2h
- • Open-drain interrupt pin
Real-Time Clock/Calendar
Applications
- • Mobile telephones
- • Portable instruments
- • Electronic metering
- • Battery-powered products
Real-Time Clock/Calendar
Pin Configuration
Table 3 provides detailed description of various pins on PCF8563.
Table 3. Pin description
| Symbol | Pin | Description | |
|---|---|---|---|
| SO8, TSSOP8 | HVSON10 | ||
| OSCI | 1 | 1 | Oscillator input |
| OSCO | 2 | 2 | Oscillator output |
| INT | 3 | 4 | Interrupt output (open-drain; active LOW) |
| V SS | 4 | 5 [1] | Ground |
| SDA | 5 | 6 | Serial data input and output |
| SCL | 6 | 7 | Serial clock input |
| CLKOUT | 7 | 8 | Clock output, open-drain |
| VDD | 8 | 9 | Supply voltage |
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| PCF8563 | — | — |
| PCF8563-02 | — | — |
| PCF8563-04 | — | — |
| PCF8563BS | — | — |
| PCF8563BS/4 | — | — |
| PCF8563BS37 | — | — |
| PCF8563T | — | — |
| PCF8563T/5 | — | — |
| PCF8563T/F4 | — | — |
| PCF8563TS | — | — |
| PCF8563TS/4 | — | — |
| PCF8563TS/5 | — | — |
| PCF8563TS39 | — | — |
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