General Description

The HT46R65/HT46C65 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 HT46C65 is fully pin and functionally compatible with the OTP version HT46R65 device.

特性 Features

? Operating voltage:

fSYS=4MHz: 2.2V~5.5V

fSYS=8MHz: 3.3V~5.5V

? 24 bidirectional I/O lines

? Two external interrupt input

? Two 16-bit programmable timer/event counter with PFD (programmable frequency divider) function

? LCD driver with 41x3 or 40x4 segments (logical output option for SEG0~SEG23)

? 8Kx16 program memory

? 384x8 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

? 16-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 0.5μs 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 QFP packages