HT49RA0_14 Datasheet, PDF (1/40 Pages) Holtek Semiconductor Inc – Remote Type 8-Bit MCU with LCD

HT49RA0/HT49CA0
Remote Type 8-Bit MCU with LCD
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
· 64-pin LQFP 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.
Rev. 1.50
1
March 20, 2014