HT46R73D-3 datasheet(1/54 Pages) HOLTEK

Part #	HT46R73D-3

Description	Dual Slope A/D Type 8-Bit OTP MCU with LCD

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Manufacturer	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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HT46R73D-3

Dual Slope A/D Type 8-Bit OTP MCU with LCD

Rev. 1.10

1

April 19, 2010

Features

· Operating voltage:

fSYS=4MHz: 2.2V~5.5V

fSYS=8MHz: 3.3V~5.5V

· Three system oscillators:

External Crystal oscillator

External RC oscillator

Internal RC oscillator

· Up to 16 bidirectional I/O lines

· One external interrupt input shard with an I/O lines

· One 8-bit and two 16-bit programmable timer/event

counter with overflow interrupt a 8-stage pre-scalar

· LCD driver with 16´4 segments

· 4K´15 program memory

· 128´8 data memory RAM

· Single differential input channel dual slope Analog to

Digital Converter with Operational Amplifier.

· Watchdog Timer with regulator power

· Buzzer output

· Internal 12kHz RC oscillator

· External 32.768kHz Crystal oscillator

· HALT function and wake-up feature reduce power

consumption

· Voltage regulator (3.3V) and charge pump

· Embeded voltage reference generator (1.5V)

· 4-level subroutine nesting

· Bit manipulation instruction

· 15-bit table read instruction

· Up to 0.5ms instruction cycle with 8MHz system clock

at VDD=5V

· 63 powerful instructions

· All instructions in 1 or 2 machine cycles

· Low voltage reset function

· One vibration sensor input

· Four touch-key inputs

· 52-pin QFP package

General Description

The HT46R73D-3 is an 8-bit high performance, RISC

architecture microcontroller device specifically de-

signed for A/D with LCD applications that interface di-

rectly to analog signals, such as those from sensors.

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

ity, timer functions, oscillator options, Dual slope A/D

converter, LCD display, HALT and wake-up functions,

watchdog timer, as well as low cost, enhance the versa-

tility of these devices to suit for a wide range of AD with

LCD application possibilities such as sensor signal pro-

cessing, scales, consumer products, subsystem con-

trollers, etc.

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HT46R73D-3 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc

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