74VHCT240A(2007) Просмотр технического описания (PDF) - Fairchild Semiconductor

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74VHCT240A
(Rev.:2007)

Octal Buffer/Line Driver with 3-STATE Outputs

Fairchild Semiconductor 

74VHCT240A

Octal Buffer/Line Driver with 3-STATE Outputs

May 2007

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Features

■ High Speed: tPD = 5.6ns (Typ.) at VCC = 5V

■ Power down protection is provided on inputs and

outputs

■ Low power dissipation: ICC = 4µA (Max.) @ TA = 25°C

■ Pin and function compatible with 74HCT240

General Description

The VHCT240A is an advanced high speed CMOS octal

bus transceiver fabricated with silicon gate CMOS

technology. It achieves high speed operation similar to

equivalent Bipolar Schottky TTL while maintaining the

CMOS low power dissipation. The VHCT240A is an

inverting 3-STATE buffer having two active-LOW output

enables. This device is designed to be used as 3-STATE

memory address drivers, clock drivers, and bus oriented

transmitter/ receivers.

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

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

voltage. These circuits prevent device destruction due to

mismatched supply and input/output voltages. This

device can be used to interface 5V to 3V systems and

two supply systems such as battery back up.

Note:

1. Outputs in OFF-State

Ordering Information

Order Number

Package

Number

Package Description

74VHCT240AM

M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide

74VHCT240ASJ

74VHCT240AMTC

M20D

MTC20

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

74VHCT240A Rev. 1.3

www.fairchildsemi.com

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