ST78C34IJ44 查看數據表（PDF） - Exar Corporation

零件编号

产品描述 (功能)

生产厂家

ST78C34IJ44

GENERAL PURPOSE PARALLEL PRINTER PORT WITH 83 BYTE FIFO

Exar Corporation 

Figure 2, BLOCK DIAGRAM

D0-D7

-IOR

-IOW

RESET

A0-A1

-CS

INT

INTSEL

ST78C34

Printer

FIFO

Registers

Printer

Data

Ports

Printer

Control

Logic

PD0-PD7

-STROBE

INIT

-AUTOFDX

-SELCTIN

PE, SELECT

BUSY, -ACK

-ERROR

Clock

&

Timing

Generator

XTAL2

XTAL1

Rev. 3.00

6-5

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