The MM74HC240 3-STATE buffer utilizes advanced silicon-gate CMOS technology. It possesses high drive current outputs which enable high speed operation even when driving large bus capacitances. These circuits achieve speeds comparable to low power Schottky devices, while retaining the advantage of CMOS circuitry, i.e., high noise immunity and low power consumption. It has a fanout of 15 LS-TTL equivalent inputs. The MM74HC240 is an inverting buffer and has two active LOW enables (1G# and 2G#). Each enable independently controls 4 buffers. All inputs are protected from damage due to static discharge by diodes to VCC and ground.

Fairchild Semiconductor

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ON SEM
ON SEMICONDUCTO
ON SEMICONDUCTORS
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OSC
ONSE
ON Semiconductor / Fairchild
ON SEMICOND
SCG
ON Semiconductor Cor
ON SEMICO
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onsemi / Fairchild
ON SEMICONDUCTOR CORP
MOT/ON SEMI
Fairchild/ONSemiconductor
ON Semiconductor Corporation
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ON Semiconductor Inc.
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技術仕様

Physical

Case/PackageSOP

MountSurface Mount

Number of Pins20

Number of Terminals20

Weight481.5 mg

Technical

DirectionUnidirectional

High Level Output Current-7.8 mA

Load Capacitance50 pF

Logic FunctionBuffer, Inverter

Low Level Output Current6 mA

Max Operating Temperature85 °C

Max Power Dissipation500 mW

Max Supply Current70 mA

Max Supply Voltage6 V

Min Operating Temperature-40 °C

Min Supply Voltage2 V

Nominal Supply Voltage (DC)4.5 V

Number of Bits4

Number of Channels8

Number of Circuits2

Number of Elements2

Number of Input Lines8

Number of Inputs4

Number of Output Lines8

Number of Outputs8

Number of Ports2

PolarityInverting

Propagation Delay25 ns

Quiescent Current8 µA

Temperature GradeIndustrial

Turn-On Delay Time26 ns

Dimensions

Height - Seated (Max)2.1 mm

Length12.6 mm

Terminal Pitch1.27 mm

Width5.3 mm

データシート & ドキュメント

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