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General Description

The HT48R10A-1/HT48C10-1 are 8-bit high performance, RISC architecture microcontroller devices specifically designed for multiple I/O control product applications. The mask version HT48C10-1 is fully pin and functionally compatible with the OTP version HT48R10A-1 device.

Features

? Operating voltage:

fSYS=4MHz: 2.2V~5.5V

fSYS=8MHz: 3.3V~5.5V

? Low voltage reset function

? 21 bidirectional I/O lines (max.)

? 1 interrupt input shared with an I/O line

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

? On-chip external crystal, RC oscillator and internal RC oscillator

? 32768Hz crystal oscillator for timing purposes only

? Watchdog Timer

? 102414 program memory ROM

? 648 data memory RAM

? Buzzer driving pair and PFD supported

? HALT function and wake-up feature reduce power consumption

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

? All instructions in one or two machine cycles

? 14-bit table read instruction

? 4-level subroutine nesting

? Bit manipulation instruction

? 63 powerful instructions

? 24-pin SKDIP/SOP package