CDP68HC68T1 Description
The primary function of the clock is to divide down a frequency input that can be supplied by the on-board oscillator in conjunction with an external crystal or by an external clock source. The internal oscillator can operate with a 32kHz, 1MHz, 2MHz, or 4MHz crystal. An external clock source with a 32kHz, 1MHz, 2MHz, 4MHz, 50Hz or 60Hz frequency can be used to drive the CDP68HC68T1.
CDP68HC68T1 Key Features
- SPI (Serial Peripheral Interface)
- Full Clock Features
- Seconds, Minutes, Hours (12/24, AM/PM), Day of Week, Date, Month, Year (0 to 99), Automatic Leap Year
- 32 Wordx8-Bit RAM
- Seconds, Minutes, Hours Alarm
- Automatic Power Loss Detection
- Low Minimum Standby (Timekeeping) Voltage
- Selectable Crystal or 50/60Hz Line Input
- Buffered Clock Output
- Battery Input Pin that Powers Oscillator and also Connects to VDD Pin When Power Fails