HT47C20 datasheet(1/46 Pages) HOLTEK

Part #	HT47C20

Description	8-Bit R-F Type Mask MCU

PDF	46 Pages

Scroll/Zoom	100%

Manufacturer	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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HT47C20

8-Bit R-F Type Mask MCU

Rev. 1.60

1

July 26, 2002

Features

· Operating voltage: 2.4V~3.6V

· Eight bidirectional I/O lines

· Four input lines

· One interrupt input

· One 16-bit programmable timer/event counter with

PFD (programmable frequency divider) function

· On-chip crystal and RC oscillator for system clock

· One 32.768kHz crystal oscillator for real time clock

· Watchdog Timer

· 2K´16 program memory ROM

· 64´8 data memory RAM

· One Real Time Clock (RTC)

· One 8-bit prescaler for RTC

· One buzzer output

· HALT function and wake-up feature reduce power

consumption

· LCD bias C type

· One LCD driver with 20´3or19´4 segments

· One 38kHz or 40kHz IR carrier output

(455kHz or 480kHz system clock only)

· Two channels RC type A/D converter

· Four-level subroutine nesting

· Bit manipulation instruction

· 16-bit table read instruction

· Up to 8.3ms instruction cycle with 480kHz system

clock

· All instructions in one or two machine cycles

· 63 powerful instructions

· 64-pin QFP package

General Description

The HT47C20 is an 8-bit high performance RISC-like

microcontroller. Its single cycle instruction and

two-stage pipeline architecture make high speed appli-

cations. The device is suited for use in multiple LCD low

power applications among which are calculators, clock

timers, games, scales, toys, thermometers, hygrometers,

body thermometers, capacitor scaler, other hand held

LCD products, and battery systems in particular.

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HT47C20 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc

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