Part No. Internal
Clock
Input Voltage System
Clock
Program
Memory
Data
Memory
Data
EEPROM
I/O RTC A/D Timer Module PFD Comp. Stack Package
HT68F03M 4kHz
8kHz
12kHz
0.7V~
3.3V
32kHz~
20MHz
1Kx14 64x8 64x8 8 v -- CTM 10-bitx1
STM 10-bitx1
v 1 4 16NSOP

HT68F04M

4kHz
8kHz
12kHz
0.7V~
3.3V
32kHz~
12MHz
2Kx15 96x8 64x8 8 v -- CTM 10-bitx1
STM 10-bitx1
v 1 8 16NSOP
HT66F03M 4kHz
8kHz
12kHz
0.7V~
3.3V
32kHz~
20MHz
1Kx14 64x8 64x8 8 v 12-bitx4 CTM 10-bitx1
STM 10-bitx1
v 1 4 16NSOP

HT66F04M

4kHz
8kHz
12kHz
0.7V~
3.3V
32kHz~
12MHz
2Kx15 96x8 64x8 8 v 12-bitx4 CTM 10-bitx1
STM 10-bitx1
v 1 8 16NSOP
Note: The internal clock in the table is a fully integrated RC oscillator requiring no external components which can be used as the system clock.