Datasheet > APU0071

APU0071

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
茂达 - ANPEC		控制器
页数	文件大小	规格书
28页	501K
描述
80 Segment / 16 Common Controller for Dot Matrix LCD

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数据手册

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APU0071 数据手册

APU0071

PIN DESCRIPTION

Input /

Output

Name

Description

For logical circuit (+3v,+5v)

0V (GND)

Bias voltage level for LCD driving

Interface

V_DD

Power supply & LCD

Bias pin

Power

Supply

V_SS(GND)

V₂,V₃,V₅

S1 ~ S80

C1 ~ C16

Output Segment output

Output Common output

Segment signal output for LCD driving

Common signal output for LCD driving

When using external clock, used as clock input pin.

When using internal oscillator, connect to V_DDor V_SS.

When EXT_INT = “High”, external clock is used.

LCD

External

clock

EXTCLK

EXT_INT

Input External clock Input

External / Internal

Input

MPU

oscillator clock select When “Low”, instruction oscillator is used.

Used as register selection input.

Input Register select

When RS = “High”, data register is selected.

When RS = “Low”, instruction register is selected.

Used as read / write selection input.

R_NW

Input Read / Write

When RW = “High”, read operation.

When RW = “Low”, write operation.

Input Read / Write enable Used as read / write enable signal.

When 8-bit bus mode, used as low order bi-directional

DB0 ~ DB3

data bus.

MPU

During 4-bit bus mode open these pins.

When 8-bit bus mode, used as high order bi-directional

data bus. In case of 4-bit bus mode, used as both high

and low order.

DB7 is used for Busy Flag output during read

instruction operation.

If it is necessary to initialize the system by hardware,

force “Low”, level signal to this terminal about 1.2 ms.

Internal oscillator test pin. Open this pin.

Internal test pin. Open this pin.

Input /

Output

Data Bus 0 ~ 7

DB4 ~ DB7

EXT_RST

Input Reset

OSC_TS

POR_TS

M_TS

Output Test Pin

Internal test pin. Open this pin.

CLK1_TS Output Test Pin

Internal test pin. Open this pin.

Rev. A.07 - FEB., 2002

www.anpec.com.tw

1 2 3 456 7 8...28

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