HT49C50 Holtek Semiconductor Inc, HT49C50 Datasheet

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HT49C50

Manufacturer Part Number

HT49C50

Description

8-Bit Microcontroller

Manufacturer

Holtek Semiconductor Inc

Datasheet

1.HT49C50.pdf (52 pages)

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Features

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General Description

The HT49C50 is an 8-bit high performance single

chip microcontroller. Its single cycle instruction

and two-stage pipeline architecture make it suit-

able for high speed applications. The device is

suited for use in multiple LCD low power applica-

Operating voltage: 2.2V~5.2V

8 input lines

12 bidirectional I/O lines

Two external interrupt input

Two 8-bit programmable timer/event

counter with PFD (programmable fre-

quency divider) function

LCD driver with 33 ´ 3 or 32 ´ 4 segments

4K ´ 15 program memory ROM

160 ´ 8 data memory RAM

Real Time Clock (RTC)

8-bit prescaler for RTC

Watchdog timer

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8-Bit Microcontroller

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tions among which are calculators, clock timers,

games, scales, leisure products, other hand held

LCD products, and battery system in particular.

Buzzer output

On-chip crystal and RC oscillator

Halt function and wake-up feature reduce

power consumption

6-level subroutine nesting

Bit manipulation instruction

15-bit table read instruction

Up to 1ms instruction cycle with 4MHz

system clock

63 powerful instructions

All instructions in 1 or 2 machine cycles

80/100-pin QFP package

HT49C50

August 18, 1999

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