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HT49C30-1

8-Bit LCD Type MCU

Holtek Semiconductor 

HT49R30A-1/HT49C30-1/HT49C30L

8-Bit LCD Type MCU

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 19´2, 19´3 or 18´4 segments

· 2K´14 program memory ROM

· 96´8 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 0.5ms instruction cycle with 8MHz system clock

for HT49R30A-1/HT49C30-1

· Up to 8ms 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

General Description

The HT49C30-1 and the HT49C30L are 8-bit high per-

formance single chip microcontrollers. The

HT49R30A-1 is the OTP version of the HT49C30-1. Its

single cycle instruction and two-stage pipeline architec-

ture 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 prod-

ucts and batteries operated systems in particular.

Rev. 1.10

1

September 25, 2002

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