General Description

The HT48RA0A is an 8-bit high performance, RISC architecture microcontroller device specifically designed for multiple I/O control product applications. This device is the OTP version which is fully pin and functionally compatible with mask version HT48CA0 device.

Features

• Operating voltage: 2.2V~3.6V

• Ten bidirectional I/O lines

• Six Schmitt trigger input lines

• One carrier output (1/2 or 1/3 duty)

• On-chip crystal and RC oscillator

• Watchdog Timer

• 1K14 program EPROM

• 328 data RAM

• HALT function and wake-up feature reduce power consumption

• 62 powerful instructions

• Up to 1s instruction cycle with 4MHz system clock

• All instructions in 1 or 2 machine cycles

• 14-bit table read instructions

• One-level subroutine nesting

• Bit manipulation instructions

• 20/24-pin SOP package