General Description

The HT48R05A-1/HT48C05 and HT48R06A-1/HT48C06 are 8-bit high performance, RISC architecture microcontroller devices specifically designed for cost-effective multiple I/O control product applications. The mask version HT48C05 and HT48C06 are fully pin and functionally compatible with the OTP version HT48R05A-1 and HT48R06A-1 devices.

Features

? Operating voltage:

fSYS=4MHz: 2.2V~5.5V

fSYS=8MHz: 3.3V~5.5V

? 13 bidirectional I/O lines

? An interrupt input shared with an I/O line

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

? On-chip crystal and RC oscillator

? Watchdog Timer

? Program memory ROM:

512x14 for HT48R05A-1/HT48C05

1024x14 for HT48R06A-1/HT48C06

? Data memory RAM

328 for HT48R05A-1/HT48C05

648 for HT48R06A-1/HT48C06

? Buzzer driving pair and PFD supported

? HALT function and wake-up feature reduce power consumption

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

? All instructions in one or two machine cycles

? 14-bit table read instruction

? Two-level subroutine nesting

? Bit manipulation instruction

? Powerful instructions:

62 for HT48R05A-1/HT48C05

63 for HT48R06A-1/HT48C06

? Low voltage reset function

? 16-pin SSOP package

18-pin DIP/SOP package