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HT48RA0-1

Remote Type 8-Bit MCU

Holtek Semiconductor 

HT48RA0-1/HT48CA0-1

Remote Type 8-Bit MCU

Technical Document

· Tools Information

· FAQs

· Application Note

- HA0016E Writing and Reading to the HT24 EEPROM with the HT48 MCU Series

- HA0018E Controlling the HT1621 LCD Controller with the HT48 MCU Series

- HA0041E Using the HT48CA0 to Generate the HT6221 Output Signals

- HA0075E MCU Reset and Oscillator Circuits Application Note

- HA0076E HT48RAx/HT48CAx Software Application Note

- HA0082E HT48xA0-1 and HT48xA0-2 Power-on Reset Timing

Features

· Operating voltage: 2.0V~3.6V

· Ten bidirectional I/O lines

· Six Schmitt trigger input lines

· One carrier output (1/2 or 1/3 duty)

· On-chip crystal and RC oscillator

· Watchdog Timer

· 1K´14 program memory

· 32´8 data RAM

· HALT function and wake-up feature reduce power

consumption

General Description

The HT48RA0-1/HT48CA0-1 are 8-bit high perfor-

mance, RISC architecture microcontroller devices spe-

cifically designed for multiple I/O control product

applications. The mask version HT48CA0-1 is fully pin

and functionally compatible with the OTP version

HT48RA0-1 device.

· 62 powerful instructions

· Up to 1ms instruction cycle with 4MHz system clock

· All instructions in 1 or 2 machine cycles

· 14-bit table read instructions

· One-level subroutine nesting

· Bit manipulation instructions

· Low voltage reset function

· 24-pin SOP/SSOP packages

The advantages of low power consumption, I/O flexibil-

ity, timer functions, oscillator options, watchdog timer,

HALT and wake-up functions, as well as low cost, en-

hance the versatility of this device to suit a wide range of

application possibilities such as industrial control, con-

sumer products, and particularly suitable for use in

products such as infrared remote controllers and vari-

ous subsystem controllers.

Rev. 1.40

1

December 21, 2005

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