General Description

The HT49RV3/HT49CV3 are 8-bit high performance single chip MCUs. Their single cycle instruction and 2-stage pipeline architecture make them suitable for high speed applications. As the devices include an VFD driver they are suitable for use in products which require a front panel for their operation such as DVDs, VCDs, mini-component audio systems, cassette decks, tuners, CD players, other home appliances, etc.

Features

• Operating voltage:

fSYS=4MHz: 2.2V~5.5V

fSYS=8MHz: 3.3V~5.5V

• 17 bidirectional I/O lines (PA, PB, PC, PD)

• Two external interrupt inputs

• Two 16-bit programmable timer/event counters with PFD (programmable frequency divider) function

• One 8-bit Remote Control Timer (RMT), pin-shared with PC7

• Single channel serial interface

• VFD driver with 11x11 segments (16-segment & 4-grid to 11-segment & 11-grid)

• 2Kx16 program memory

• 96x8 data memory RAM

• Supports PFD for sound generation

• 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

• 6-level subroutine nesting

• Low voltage reset function

• Bit manipulation instruction

• 16-bit table read instruction

• Up to 0.5μs instruction cycle with 8MHz system clock

• 63 powerful instructions

• All instructions in 1 or 2 machine cycles

• 52-pin QFP package