General Description

The HT46R64/HT46C64 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 HT46C64 is fully pin and functionally compatible with the OTP version HT46R64 device.

Features

Operating voltage:

  fSYS=4MHz: 2.2V~5.5V

  fSYS=8MHz: 3.3V~5.5V

24 bidirectional I/O lines

Two external interrupt input

One 8-bit and one 16-bit programmable timer/event counter with PFD (programmable frequency divider)

function

LCD driver with 333or324 segments(logical output option for SEG0~SEG15)

4K15 program memory

1928 data memory RAM

Supports PFD for sound generation

Real Time Clock (RTC)

8-bit prescaler for RTC

Watchdog Timer

Buzzer output

On-chip crystal, RC and 32768Hz crystal oscillator

HALT function and wake-up feature reduce power consumption

8-level subroutine nesting

8 channels 10-bit resolution A/D converter

4-channel 8-bit PWM output shared with 4 I/O lines

Bit manipulation instruction

16-bit table read instruction

Up to 0.5s instruction cycle with 8MHz system clock

63 powerful instructions

All instructions in 1 or 2 machine cycles

Low voltage reset/detector function

52-pin QFP, 56-pin SSOP, 100-pin LQFP packages