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HT49RA1/HT49CA1 -- Remote Type 8-Bit MCU with LCD
General Description
The HT49RA1/HT49CA1 is a Remote Type 8-bit MCU
8-bit high performance RISC architecture microcontroller. With its internal carrier generator and
LCD Driver functions the device is is especially suitable for multiple I/O remote control product applications. The
usual Holtek MCU features such as power down and wake-up functions, oscillator options, etc. combine to
ensure user applications require a minimum of external components.
The benefits of low power consumption, high performance,
I/O flexibility and low-cost, provide these devices with the versatility 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, etc.
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Features
- Operating voltage: 2.0V~3.6V
- 12 bidirectional I/O lines, 8 input lines, 8 segment output, PC0 (input/output)/REM
- Two external interrupt inputs shared with an I/O line
- 8-bit programmable Timer/Event Counter with overflow interrupt function
- Single 16-bit programmable timer/event counter with overflow interrupt function
- RC oscillator and 32768Hz crystal oscillator
- LCD driver with 33x2, 33x3 or 32x4 segments (C type only), 8 logical output option for
SEG12~SEG19 and 4 I/O port option for SEG0~SEG3 by changing LCDC register
- 4096x15 program memory
- 160x8 data memory
- Real Time Clock -- RTC
- 8-bit prescaler for RTC
- One carrier output (1/2 or 1/3 duty)
- Software LCD, RTC control
- Watchdog Timer function
- Power down and wake-up functions to reduce power consumption
- Up to 1us instruction cycle with 4MHz system clock
- 4-level subroutine nesting
- Bit manipulation instruction
- Table read instructions
- 63 powerful instructions
- All instructions executed in one or two machine cycles
- Low voltage reset/detector function
- 52-pin QFP, 64-pin LQFP packages
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