Part No. Internal
Clock		 VDD Program
Memory		 Data
Memory		 I/O RTC A/D Timer
Module		 I2C/
SPI		 Audio Output Stack Package
DAC PWM PA
HT83F02 4MHz
8MHz
12MHz		 2.4V~
5.5V		 2Kx16 208x8 19 -- -- 8-bitx2 v 12-bitx1 v -- 8 28SOP
HT83F22 4MHz
8MHz
12MHz		 2.2V~
5.5V		 4Kx16 384x8 24 v 12-bitx8 CTM 10-bitx1
ETM 10-bitx1		 v 12-bitx1 -- v 8 48LQFP

Note: The HT83F02 is a voice playing MCU while the HT83F22 is both a voice playing and voice recording MCU.