HT48RA3 - Holtek Semiconductor

HT48RA3 (HT48RA3 / HT48CA3) 8-Bit Remote Type OTP MCU

The HT48RA3/HT48CA3 are 8-bit high performance, RISC architecture microcontroller devices specifically designed for multiple I/O control product applications. The data ROM can be used to store remote control codes. The mask version HT48CA3 is fully pin and functionally compatible with the OTP version HT48RA3 device. The advantages of low power consumption, I.

Features

· Operating voltage: 2.0V~5.5V
· 23 bidirectional I/O lines (max.)
· 1 interrupt input shared with an I/O line
· 8-bit programmable timer/event counter with overflow
· PFD supported
· HALT function and wake-up feature reduce power consumption
· 8-level subroutine nesting
· Up to 1ms instruction cycle with 4MHz system clock at interrupt and 8-stage prescaler (TMR0)
· 16-bit programmable timer/event counter and over- VDD=3V
· Bit manipulation instruction
· 16-bit table read instruction
· 63 powerful instructions
· All instructions in one or two machine cycles
· Low voltage reset function
· 28.