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