HT49RA0 Datasheet, PDF (1/39 Pages) Holtek Semiconductor Inc – Remote Type 8-Bit MCU with LCD

HT49RA0/HT49CA0
Remote Type 8-Bit MCU with LCD
Technical Document
· Tools Information
· FAQs
· Application Note
- HA0075E MCU Reset and Oscillator Circuits Application Note
Features
· Operating voltage: 2.0V~3.6V
· 8 bidirectional I/O lines and 8 input lines
· Two external interrupt input
· One 8-bit programmable timer/event counter
· LCD driver with 21´2, 21´3 or 20´4 segments
· 2K´14 program memory
· 96´8 data memory RAM
· Real Time Clock (RTC)
· 8-bit prescaler for RTC
· One carrier output (1/2 or 1/3 duty)
· Software LCD, RTC control
· On-chip RC and 32768Hz crystal oscillator
· Watchdog Timer
· HALT function and wake-up feature reduce power
consumption
· 4-level subroutine nesting
· Bit manipulation instruction
· 14-bit table read instruction
· Up to 1ms instruction cycle with 4MHz system clock
· 63 powerful instructions
· All instructions in 1 or 2 machine cycles
· Low voltage reset/detector function
· 52-pin QFP package
General Description
The HT49RA0/HT49CA0 are 8-bit high performance,
RISC architecture microcontroller devices specifically
designed for multiple I/O control product applications.
The mask version HT49CA0 is fully pin and functionally
compatible with the OTP version HT49RA0 device.
The advantages of low power consumption, I/O
flexibility, timer functions, oscillator options, watchdog
timer, HALT and wake-up functions, as well as low cost,
enhance the versatility of this device to suit a wide range
of application possibilities such as industrial control,
consumer products, and particularly suitable for use in
products such as infrared LCD remote controllers and
various subsystem controllers.
The HT49CA0 is under development and will be avail-
able soon.
Rev. 1.20
1
October 24, 2007