MC74LCX540 查看數據表（PDF） - ON Semiconductor

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MC74LCX540

Low-Voltage CMOS Octal Buffer Flow Through Pinout

ON Semiconductor 

Low-Voltage CMOS

Octal Buffer

Flow Through Pinout

With 5V–Tolerant Inputs and Outputs

(3–State, Inverting)

The MC74LCX540 is a high performance, inverting octal buffer

operating from a 2.3 to 3.6V supply. This device is similar in function

to the MC74LCX240, while providing flow through architecture.

High impedance TTL compatible inputs significantly reduce current

loading to input drivers while TTL compatible outputs offer improved

switching noise performance. A VI specification of 5.5V allows

MC74LCX540 inputs to be safely driven from 5V devices. The

MC74LCX540 is suitable for memory address driving and all TTL

level bus oriented transceiver applications.

Current drive capability is 24mA at the outputs. The Output Enable

(OE1, OE2) inputs, when HIGH, disables the outputs by placing them

in a HIGH Z condition.

• Designed for 2.3 to 3.6V VCC Operation

• 5V Tolerant — Interface Capability With 5V TTL Logic

• Supports Live Insertion and Withdrawal

• IOFF Specification Guarantees High Impedance When VCC = 0V

• LVTTL Compatible

• LVCMOS Compatible

• 24mA Balanced Output Sink and Source Capability

• Near Zero Static Supply Current in All Three Logic States (10µA)

Substantially Reduces System Power Requirements

• Latchup Performance Exceeds 500mA

• ESD Performance: Human Body Model >2000V; Machine Model >200V

MC74LCX540

LOW–VOLTAGE CMOS

OCTAL BUFFER

20

1

20

1

20

1

DW SUFFIX

PLASTIC SOIC

CASE 751D–04

M SUFFIX

PLASTIC SOIC EIAJ

CASE 967–01

DT SUFFIX

PLASTIC TSSOP

CASE 948E–02

PIN NAMES

Pins

Function

OEn

Dn

On

Output Enable Inputs

Data Inputs

3–State Outputs

© Semiconductor Components Industries, LLC, 2001

1

January, 2001 – Rev. 2

Publication Order Number:

MC74LCX540/D

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