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General Description

The HT49C30-1 and the HT49C30L are 8-bit high performance single chip microcontrollers. The HT49R30A-1 is the OTP version of the HT49C30-1. Its single cycle instruction and two-stage pipeline architecture make it suitable for high speed applications. The devices are also suitable for use in multiple LCD low power applications such as scales, leisure products, high-level household appliances, hand held LCD products and batteries operated systems in particular.

Features

? Operating voltage:

2.2V~5.5V for HT49R30A-1/HT49C30-1

1.2V~2.2V for HT49C30L

? 6 input lines

? 8 bidirectional I/O lines

? Two external interrupt input

? One 8-bit programmable timer/event counter with PFD (programmable frequency divider) function

? LCD driver with 19x2, 19x3 or 18x4 segments

? 2Kx14 program memory ROM

? 96x8 data memory RAM

? Real Time Clock (RTC)

? 8-bit prescaler for RTC

? Watchdog Timer

? Buzzer output

? On-chip crystal, RC and 32768Hz crystal oscillator

? HALT function and wake-up feature reduce power consumption

? 4-level subroutine nesting

? Bit manipulation instruction

? 14-bit table read instruction

? Up to 0.5μs instruction cycle with 8MHz system clock for HT49R30A-1/HT49C30-1

? Up to 8μs instruction cycle with 500kHz system clock for HT49C30L

? 63 powerful instructions

? All instructions in 1 or 2 machine cycles

? Low voltage reset/detector for HT49R30A-1/HT49C30-1

? 48-pin SSOP package