General Description
The HT46R63/HT46C63 are 8-bit, high performance, RISC architecture microcontroller devices specifically designed for A/D product applications that interface directly to analog signals and which require LCD Interface. The mask version HT46C63 is fully pin and functionally compatible with the OTP version HT46R63 device.

FEATUREs
• Operating voltage:
    fSYS=4MHz: 2.2V~5.5V
    fSYS=8MHz: 3.3V~5.5V
• Operating frequency: External RC or Crystal
• 32.768kHz crystal oscillator used for timing purposes
• Watchdog enable or disable function
• 1x16 bits timer with an overflow interrupt (TMR)
• Time base generator (clock source: 32.768kHz) and RTC interrupts
• 4K15 program memory
• 2088 data memory RAM
• Maximum of 32 I/O lines (shared with INT0, INT1, TMR, AN0~AN7, PWM0~PWM3)
• 8-level stack
• Up to 0.5s instruction cycle with 8MHz system clock at VDD=5V
• 2 external interrupts (high/low going trigger)
• One comparator
• LCD: 203 or 194, 1/3 bias with 12 pins logical outputs options. (select by options in unit of 4 pins, 8 high sink)
• Built-in R type bias generator
• 8 channels 8-bits resolution A/D converter
• 4 channels PWM outputs
• 56-pin SSOP, 100-pin QFP package