74LCX543 Fairchild Semiconductor, 74LCX543 Datasheet

74LCX543

Manufacturer Part Number

74LCX543

Description

Low Voltage Octal Registered Transceiver with 5V Tolerant Inputs and Outputs

Manufacturer

Fairchild Semiconductor

Datasheet

1.74LCX543.pdf (8 pages)

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74LCX543WM

74LCX543MSA

74LCX543MTC

74LCX543

Low Voltage Octal Registered Transceiver with

5V Tolerant Inputs and Outputs

General Description

The LCX543 is a non-inverting octal transceiver containing

two sets of D-type registers for temporary storage of data

flowing in either direction. Separate Latch Enable and Out-

put Enable inputs are provided for each register to permit

independent input and output control in either direction of

data flow.

The LCX543 is designed for low voltage (2.5V or 3.3V) V

applications with capability of interfacing to a 5V signal

environment.

The LCX543 is fabricated with an advanced CMOS tech-

nology to achieve high speed operation while maintaining

CMOS low power dissipation.

Ordering Code:

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Order Number

Package Number

MSA24

MTC24

M24B

24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide

24-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide

24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

DS012463.prf

Features

Note 1: To ensure the high-impedance state during power up or down, OE

should be tied to V

resistor is determined by the current-sourcing capability of the driver.

Pin Descriptions

Pin Names

5V tolerant inputs and outputs

2.3V

7.0 ns t

Power down high impedance inputs and outputs

Supports live insertion/withdrawal (Note 1)

Implements patented noise/EMI reduction circuitry

Latch-up performance exceeds 500 mA

ESD performance:

OEAB

OEBA

CEAB

CEBA

LEAB

LEBA

24 mA Output Drive (V

Human body model

Machine model

–A

–B

Package Description

3.6V V

max (V

A-to-B Output Enable Input (Active LOW)

B-to-A Output Enable Input (Active LOW)

A-to-B Enable Input (Active LOW)

B-to-A Enable Input (Active LOW)

A-to-B Latch Enable Input (Active LOW)

B-to-A Latch Enable Input (Active LOW)

A-to-B Data Inputs or

B-to-A 3-STATE Outputs

B-to-A Data Inputs or

A-to-B 3-STATE Outputs

through a pull-up resistor: the minimum value or the

specifications provided

200V

3.3V), 10 A I

2000V

Description

May 1995

Revised April 1999

3.0V)

www.fairchildsemi.com

max

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74LCX543 Summary of contents

Page 1

... MSA24 24-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide 74LCX543MTC MTC24 24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. ...

Page 2

Logic Symbols IEEE/IEC Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. www.fairchildsemi.com Data I/O Control Table Inputs Latch Status CEAB LEAB OEAB H ...

Page 3

Absolute Maximum Ratings Symbol Parameter V Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Source/Sink Current Supply ...

Page 4

DC Electrical Characteristics Symbol Parameter I Quiescent Supply Current CC I Increase in I per Input CC CC Note 5: Outputs disabled or 3-STATE only. AC Electrical Characteristics Symbol Parameter t Propagation Delay PHL ...

Page 5

AC LOADING and WAVEFORMS FIGURE 1. AC Test Circuit (C Test t PLH t PZL t PZH Waveform for Inverting and Non-Inverting Functions Propagation Delay. Pulse Width and t rec 3-STATE Output Low Enable and Disable Times for Logic (Input ...

Page 6

Schematic Diagram Generic for LCX Family www.fairchildsemi.com 6 ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide 24-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide Package Number M24B Package Number MSA24 7 www.fairchildsemi.com ...

Page 8

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE ...

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