HT48CA1(2004) データシートの表示（PDF） - Holtek Semiconductor

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HT48CA1
(Rev.:2004)

Remote Type 8-Bit MCU

Holtek Semiconductor 

HT48RA1/HT48CA1

Remote Type 8-Bit MCU

Features

· Operating voltage: 2.0V~5.5V

· 23 bidirectional I/O lines (max.)

· 1 interrupt input shared with an I/O line

· 8-bit programmable timer/event counter with overflow

interrupt and 8-stage prescaler (TMR0)

· 16-bit programmable timer/event counter and

overflow interrupts (TMR1)

· On-chip crystal and RC oscillator

· Watchdog Timer

· 8K´16 program memory

· 224´8 data memory RAM

· PFD supported

· HALT function and wake-up feature reduce power

consumption

· 8-level subroutine nesting

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

VDD=3V

· Bit manipulation instruction

· 16-bit table read instruction

· 63 powerful instructions

· All instructions in one or two machine cycles

· Low voltage reset function

· 28-pin SOP/SSOP(209mil) package

General Description

The HT48RA1/HT48CA1 are 8-bit high performance,

RISC architecture microcontroller devices specifically

designed for multiple I/O control product applications.

The data ROM can be used to store remote control

codes. The mask version HT48CA1 is fully pin and func-

tionally compatible with the OTP version HT48RA1 de-

vice.

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

ity, timer functions, oscillator options, watchdog timer,

programmable frequency divider, HALT and wake-up

functions, as well as low cost, enhance the versatility of

these devices to suit a wide range of application possi-

bilities such as industrial control, consumer products,

subsystem controllers, and particularly suitable for use

in products such as universal remote controller (URC).

Rev. 1.00

1

June 25, 2004

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