0
In Production
EEPROM Data Memory Bytes |
0 |
Unique ID with MAC Address |
None |
User SRAM (Bytes) |
64 |
Max Interface Speed |
400 KHz |
Minimum Clock Count |
1 sec |
Pin Count |
8 |
Temp Range Max (°C (degrees Celsius)) |
85 |
Temp Range Min (°C (degrees Celsius)) |
-40 |
The MCP7940M I2CTM compatible real-time clock/calendar (RTCC) includes SRAM and a digital trimming circuit for accuracy which is normally found in higher priced devices. Using a low-cost 32,768 kHz crystal or other clock source, time is tracked in either a 12-hour or 24-hour format with an AM/PM indicator and timing to the second, minute, hour, day of the week, day, month and year. As an interrupt or wakeup signal, a multifunction open drain output can be programmed as an Alarm Out or as a Clock Out that supports 4 selectable frequencies.