74240 Octal 3-STATE Buffer/Line Driver/Line Receiver IC PDIP-20

Description

74240
Octal 3-STATE Buffer
/Line Driver/Line Receiver IC PDIP-20

The 74240 Octal 3-STATE Buffer/Line Driver/Line Receiver IC PDIP-20 is an octal buffer/line driver/line receiver device designed for bus-oriented systems, memory-address driving and clock distribution, providing 3-STATE outputs, PNP inputs for reduced DC loading, input hysteresis for improved noise rejection, and a standard PDIP-20 through-hole package for easy prototyping and retrofit applications.

Features:

Eight buffered inverting/noninverting channels with 3-STATE outputs suitable for bus interfacing and multiplexed systems.

PNP input structure reduces DC loading on data and bus lines for improved signal integrity.

Input hysteresis (typically 0.2–0.4V) for enhanced noise margin at data inputs.

High sink capability with typical I
OL
= 24mA and moderate source capability with typical I
OH
= −15mA.

Fast switching for TTL designs with typical propagation delays in the low-tens of nanoseconds range.

Low off-state leakage (I
OZ
typically ±20µA) to minimize bus contention when outputs are disabled.

Enables driving terminated lines down to 133Ω and supports high fanout configurations.

Pinout Diagram:

Specifications:

Parameter

Value

Category:

Integrated Circuits (ICs)/Logic/Buffers, Drivers, Receivers, Transceivers

Manufacturer:

XBLW

Package:

DIP-20

Output Type:

Tri-State

Operating Temperature:

-20℃~+85℃

Series:

74LS Series

Number of Bits per Element:

8

Quiescent Current (Iq):

8uA

Current – Output High (IOH):

7.8mA

Channel Type:

Unidirectional

Voltage – Supply:

2V~6V

Number of Channels:

1

Propagation Delay:

9ns@5V,15pF

Current – Output Low (IOL):

7.8mA

For full electrical specifications, please read the datasheet down below.

Applications:

Bus drivers and transceivers for microprocessor address and data buses.

Memory address buffering and clock distribution in digital systems.

Line driving for terminated transmission lines and high-fanout logic networks.

Bus isolation and 3-STATE multiplexing in instrumentation and control systems.

General TTL-level buffering and interfacing in legacy and embedded designs.

Package Contents:

1x
74240 Octal 3-STATE Buffer/Line Driver/Line Receiver IC PDIP-20

Documents:

Datasheet

74240

CAD Files

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