ST16C452CJ68 datasheet(3/30 Pages) EXAR

номер детали	ST16C452CJ68

подробное описание детали	DUAL UART WITH PARALLEL PRINTER PORT

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производитель	EXAR [Exar Corporation]

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ST16C452/452PS

Rev. 3.20

SYMBOL DESCRIPTION

Symbol

Signal Type

Pin Description

A0

35

I

Address-0 Select Bit - Internal registers address selection.

A1

34

I

Address-1 Select Bit - Internal registers address selection.

A2

33

I

Address-2 Select Bit - Internal registers address selection.

-ACK

68

I

Acknowledge (with internal pull-up) - General purpose input

or line printer acknowledge (active low). a logic 0 from the

printer, indicates successful data transfer to the print buffer.

-AutoFDXT

56

I/O

General purpose I/O (open drain, with internal pull-up) or

automatic line feed (open drain input with internal pull-up).

When this signal is low the printer should automatically line

feed after each line is printed.

BIDEN

1

I

Bi-Direction Enable - PD7-PD0 direction select. A logic 0

sets the parallel port for I/O Select Register Control. A logic

1 sets the parallel port for Control Register Bit-5 Control.

BUSY

66

I

Busy (with internal pull-up) - General purpose input or line

printer busy (active high). can be used as an output from the

printer to indicate printer is not ready to accept data.

CLK

4

I

Clock Input. - An external clock must be connected to this

pin to clock the baud rate generator and internal circuitry

(see Programmable Baud Rate Generator).

-CSA

32

I

Chip Select A - A logic 0 at this pin enables the serial

channel-A UART registers for CPU data transfers.

-CSB

3

I

Chip Select B - A logic 0 at this pin enables the serial

channel-B UART registers for CPU data transfers.

-CSP

38

I

Printer Port Chip Select - (active low). A logic 0 at this pin

enables the parallel printer port registers and/or PD7-PD0

for external CPU data transfers.

D0-D7

14-21

I/O

Data Bus (Bi-directional) - These pins are the eight bit, three

state data bus for transferring information to or from the

controlling CPU. D0 is the least significant bit and the first

data bit in a transmit or receive serial data stream.

Аналогичный номер детали - ST16C452CJ68

производитель	номер детали	датащи	подробное описание детали
Exar Corporation	ST16C452CJ68	162Kb / 30P	DUAL UART WITH PARALLEL PRINTER PORT
Exar Corporation	ST16C452CJ68PS	162Kb / 30P	DUAL UART WITH PARALLEL PRINTER PORT

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Аналогичное описание - ST16C452CJ68

производитель	номер детали	датащи	подробное описание детали
Exar Corporation	ST16C452	162Kb / 30P	DUAL UART WITH PARALLEL PRINTER PORT
Exar Corporation	ST16C552	222Kb / 39P	DUAL UART WITH 16-BYTE FIFO AND PARALLEL PRINTER PORT
IMP, Inc	IMP16C552	783Kb / 34P	Dual Universal Asynchronous Receiver/Transmitter (UART) with 16-BYTE FIFO & Parallel Printer Port
List of Unclassifed Man...	NM9835	135Kb / 23P	PCI Dual UART and 1284 Printer Port
Texas Instruments	TL16PIR552	699Kb / 52P	[Old version datasheet] DUAL UART WITH DUAL IrDA AND 1284 PARALLEL PORT
IMP, Inc	EI16C552	23Kb / 2P	Dual FIFO UART and Parallel Port
A1 PROs co., Ltd.	EI16C552	29Kb / 2P	Dual FIFO UART and Parallel Port
Exar Corporation	ST78C34	198Kb / 21P	GENERAL PURPOSE PARALLEL PRINTER PORT WITH 83 BYTE FIFO
	ST78C36	636Kb / 28P	ECP/EPP PARALLEL PRINTER PORT WITH 16-BYTE FIFO
	ST78C36	133Kb / 26P	ECP/EPP PARALLEL PRINTER PORT WITH 16-BYTE FIFO

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ST16C452CJ68 датащи(PDF) 3 Page - Exar Corporation

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Аналогичный номер детали - ST16C452CJ68

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