74LVCZ161284A datasheet, PDF - EEWORLD Datasheet

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74LVCZ161284A: DescriptionLOW VOLTAGE HIGH SPEED IEEE 1284 TRANSCEIVER WITH ERROR-FREE POWER-UP; File Size241KB，12 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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74LVCZ161284A Overview

LOW VOLTAGE HIGH SPEED IEEE 1284 TRANSCEIVER WITH ERROR-FREE POWER-UP

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74LVCZ161284A

LOW VOLTAGE HIGH SPEED IEEE1284 TRANSCEIVER

WITH ERROR-FREE POWER-UP

HIGH SPEED: t

= 9ns (MAX.) at V

= 3V

LOW POWER DISSIPATION:

=20µA (MAX) at V

=3.6V T

=85°C

TTL COMPATIBLE INPUTS

=2V (MIN) V

=0.8(MAX)

OPERATING VOLTAGE RANGE:

(OPR) = 3.0V to 3.6V

A PORT HAVE STANDARD 4mA TOTEM

POLE OUTPUT

B PORT HIGH DRIVE SOURCE/SINK

CAPABILITY OF 14mA

AUTO POWER-UP FEATURE TO PREVENT

PRINTER ERRORS

SUPPORT IEEE STD 1284-I (LEVEL 1 TYPE)

AND IEEE STD 1284-II (LEVEL 2 TYPE) FOR

BIDIRECTIONAL PARALLEL

COMMUNICATIONS BETWEEN PERSONAL

COMPUTER ANT PRINTING PERIPHERALS

TRANSLATION CAPABILITY ALLOW

OUTPUTS ON CABLE SIDE TO INTERFACE

WITH 5V SIGNAL

PULL-UP RESISTOR INTEGRATED ON ALL

OPEN-DRAIN OUTPUT ELIMINATE THE

NEED FOR DISCRETE RESISTOR

REPLACE THE FUNCTION OF TWO

74LVC1284 DEVICES

TSSOP

ORDER CODES

PACKAGE

TSSOP

TUBE

T&R

74LVCZ161284ATTR

PIN CONNECTION

DESCRIPTION

The 74LVCZ161284A contains eight high speed

non inverting bidirectional buffers and eleven

control/status non-inverting buffers with open

drain outputs fabricated in silicon gate C

MOS

technology. It’s intended to provide a standard

signaling method for a bi-direction parallel

peripheral in an Extended Capabilities Port Mode

(ECP). The HD (Active HIGH) input pin enables

the Cable port to switch from Open Drain to a high

drive totem pole output, capable of sourcing 14mA

on all thirteen buffer and 84mA on PERI LOGIC

OUTPUT buffer. The DIR input determines the

direction of data flow on the bidirectional buffers.

DIR (Active HIGH) enables data flow from A port

to B port. DIR (Active LOW) enables data flow

from B port to A port. The Y output (Y9-Y13) stay

in the high state after power-on until an associated

input A9-A13) goes high. When an associated

input goes high, all Y outputs are active, and non

September 2003

1/12

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