| OSCIN |
1 |
-PCF-
-8563- |
8 |
VCC |
| OSCOUT |
2 |
7 |
!INT |
| A0 |
3 |
6 |
SCL |
| GND |
4 |
5 |
SDA |
|
Pin
Names and functions
| A0 |
Address Inputs |
| INT |
Thermostat output stage can be made either
like a comparator or an interrupt. |
| SDA, SCL |
I2C bus |
| OSCIN, OSCOUT |
Connect to 32768 Hz watch crystal. |
| Vcc |
Power (5V DC) |
| GND |
Ground |
Registers
| 00 |
control/status |
| 01 |
hundredth of a second |
| 02 |
seconds |
| 03 |
minutes |
| 04 |
hours |
| 05 |
year/date |
| 06 |
weekdays/months |
| 07 |
timer |
| 08 |
alarm control |
| 09-0f |
alarm registers or RAM |
| 0f-ff |
RAM |
|