General Description

The HT46R46-H are 8-bit, high performance, RISC architecture microcontroller devices specifically designed

for A/D applications that interface directly to analog signals, such as those from sensors.

Features

Operating voltage:

fSYS=4MHz: VLVR~5.5V with LVR enabled

fSYS=8MHz: 3.3V~5.5V with LVR disabled

13 bidirectional I/O lines (max.)

1 interrupt input shared with an I/O line

8-bit programmable timer/event counter with overflow interrupt and 7-stage prescaler

On-chip crystal and RC oscillator

Watchdog Timer

102414 program memory

648 data memory RAM

Supports PFD for sound generation

HALT function and wake-up feature reduce power consumption

Up to 0.5s instruction cycle with 8MHz system clock at VDD=5V

4-level subroutine nesting

4 channels 8-bit resolution A/D converter

1 channel 8-bit PWM output shared with an I/O line

Bit manipulation instruction

14-bit table read instruction

63 powerful instructions

All instructions in one or two machine cycles

Low voltage reset function

18-pin DIP/SOP package