74LS240 - Octal TRI-STATE Buffers/Line Drivers/Line Receivers

National Semiconductor

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Datasheet Details

Part number	74LS240
Manufacturer	National Semiconductor
File Size	142.98 KB
Description	Octal TRI-STATE Buffers/Line Drivers/Line Receivers
Datasheet	74LS240_NationalSemiconductor.pdf

74LS240 Product details

Description

These buffers line drivers are designed to improve both the performance and PC board density of TRI-STATE buffers drivers employed as memory-address drivers clock drivers and bus-oriented transmitters receivers Featuring 400 mV of hysteresis at each low current PNP data line input they provide improved noise rejection and high fanout outputs and can be used to drive terminated lines down to 133X Y Y Y

Features

Y Y Y Y Y TRI-STATE outputs drive bus lines directly PNP inputs reduce DC loading on bus lines Hysteresis at data inputs improves noise margins Typical IOL (sink current) 54LS 12 mA 74LS 24 mA Typical IOH (source current) b 12 mA 54LS b 15 mA 74LS Typical propagation delay times Inverting 10 5 ns Noninverting 12 ns Typical enable disable time 18 ns Typical power dissipation (enabled) Inverting 130 mW Noninverting 135 mW Connection Diagrams Dual-In-Line Package Dual-In-Line Package TL F 6411.

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Published: Apr 23, 2005 |