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