HT49RV3 Datasheet, PDF (1/44 Pages) Holtek Semiconductor Inc – VFD Type 8-Bit MCU

HT49RV3/HT49CV3
VFD Type 8-Bit MCU
Technical Document
· Tools Information
· FAQs
· Application Note
- HA0077E HT49CVX Remote Control Receiver SWIP Design Note
- HA0078E HT49CVX Display SWIP Design Note
Features
· Operating voltage:
f_SYS=4MHz: 2.2V~5.5V
f_SYS=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 11´11 segments
(16-segment & 4-grid to 11-segment & 11-grid)
· 2K´16 program memory
· 96´8 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 0.5ms instruction cycle with 8MHz system clock
· 63 powerful instructions
· All instructions in 1 or 2 machine cycles
· 52-pin QFP package
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.
Rev. 1.30
1
March 20, 2007