74VHCT540AM View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

Manufacturer

74VHCT540AM

Octal Buffer/Line Driver with 3-STATE Outputs

Fairchild Semiconductor 

74VHCT540A

Octal Buffer/Line Driver with 3-STATE Outputs

May 2007

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Features

■ High Speed: tPD = 5.4ns (Typ.) at VCC = 5V

■ Low Power Dissipation: ICC = 4µA (Max.) at TA = 25°C

■ Power down protection is provided on all inputs and

outputs

■ Pin and function compatible with 74HCT540

General Description

The VHCT540A is an advanced high-speed CMOS

device fabricated with silicon gate CMOS technology. It

achieves the high-speed operation similar to equivalent

Bipolar Schottky TTL while maintaining the CMOS low

power dissipation.

The VHCT540A is an octal buffer/line driver designed to

be employed as memory and address drivers, clock

drivers and bus oriented transmitter/receivers.

This device is similar in function to the VHCT240A while

providing flow-through architecture (inputs on opposite

side from outputs). This pinout arrangement makes this

device especially useful as an output port for micro-

processors, allowing ease of layout and greater PC

board density.

Protection circuits ensure that 0V to 7V can be applied to

the input and output(1) pins without regard to the supply

voltage. This device can be used to interface 3V to 5V

systems and two supply systems such as battery

backup. This circuit prevents device destruction due to

mismatched supply and input voltages.

Note:

1. Outputs in OFF-State.

Ordering Information

Order Number

Package

Number

Package Dissipation

74VHCT540AM

74VHCT540ASJ

74VHCT540AMTC

M20B

M20D

MTC20

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide

20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,

4.4mm Wide

Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the

ordering number. Pb-Free package per JEDEC J-STD-020B.

©1997 Fairchild Semiconductor Corporation

74VHCT540A Rev. 1.3

www.fairchildsemi.com

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