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

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:

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: