HT49RA0-6 Datasheet, PDF (1/49 Pages) Holtek Semiconductor Inc – Remote Type 8-Bit MCU with LCD

HT49RA0-6
Remote Type 8-Bit MCU with LCD
Technical Document
· Application Note
- HA0075E MCU Reset and Oscillator Circuits Application Note
Features
· Operating voltage:
f_SYS = 4MHz at V_DD = 2.0V~3.6V (LVR enabled)
· Oscillator types:
- External High Frequency crystal -- HXT
- Internal High Frequency RC -- HIRC
- External 32768Hz crystal -- LXT
- Internal 32kHz RC -- LIRC
· Fully integrated internal 4095kHz oscillator requires
no external components
· Program Memory: 2K´16
· Data Memory: 96´8
· 4 subroutine nesting levels
· Up to 23 bidirectional I/O lines
· Two external interrupt lines shared with I/O pins
· One 8-bit programmable timer/event counter
· Real Time Clock -- RTC
· 8-bit prescaler for RTC
· One programmable carrier output -- using 9-bit
timer
· Independent Carrier output pin (REM/REMDRV)
· Integrated IR driver (560mA at 3.0V)
· LCD driver with 21´2, 21´3 or 20´4 segments
· LCD display duty and bias
· Duty: 1/2, 1/3 or 1/4
· Bias: 1/2 or 1/3
· Software enable control for LCD and RTC function
· Watchdog Timer
· Low Voltage Reset/Detect function
· Power-down and wake-up features reduce power
consumption
· 16-bit table read instruction
· Bit manipulation instruction
· 63 powerful instructions
· Up to 1ms instruction cycle with 4MHz system clock
· All instructions in 1 or 2 machine cycles
· 48-pin LQFP package
General Description
The HT49RA0-6 is 8-bit high performance, RISC
architecture microcontroller devices specifically
designed for multiple I/O control product applications.
The advantages of low power consumption, I/O
flexibility, timer functions, oscillator options, watchdog
timer, power-down 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. 1.10
1
February 18, 2013