MC74LCX125 查看數據表（PDF） - Motorola => Freescale

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MC74LCX125

Low-Voltage CMOS Quad Buffer With 5 V−Tolerant Inputs and Outputs (3−State, Non−Inverting)

Motorola => Freescale 

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

Low-Voltage CMOS Quad

Buffer

With 5V-Tolerant Inputs and Outputs

(3-State, Non-Inverting)

MC74LCX125

The MC74LCX125 is a high performance, non–inverting quad buffer

operating from a 2.7 to 3.6V supply. 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 MC74LCX125 inputs to be safely driven from

5V devices. The MC74LCX125 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

(OEn) inputs, when HIGH, disable the outputs by placing them in a HIGH

Z condition.

• Designed for 2.7 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

Pinout: 14–Lead (Top View)

VCC OE3 D3 O3 OE2 D2 O2

14 13 12 11 10 9 8

LOW–VOLTAGE CMOS

QUAD BUFFER

14

1

14

1

14

1

14

1

D SUFFIX

PLASTIC SOIC

CASE 751A–03

M SUFFIX

PLASTIC SOIC EIAJ

CASE 965–01

SD SUFFIX

PLASTIC SSOP

CASE 940A–03

DT SUFFIX

PLASTIC TSSOP

CASE 948G–01

1234567

OE0 D0 O0 OE1 D1 O1 GND

1

OE0

2

D0

4

OE1

5

D1

LOGIC DIAGRAM

10

OE2

3

O0

9

D2

13

OE3

6

O1

12

D3

8

O2

11

O3

PIN NAMES

Pins

Function

OEn

Dn

On

Output Enable Inputs

Data Inputs

3–State Outputs

FUNCTION TABLE

INPUTS

OEn

Dn

L

L

L

H

H

X

OUTPUTS

On

L

H

Z

H = High Voltage Level; L = Low Voltage Level; Z = High Imped-

ance State; X = High or Low Voltage Level and Transitions Are

Acceptable, for ICC reasons, DO NOT FLOAT Inputs

11/96

© Motorola, Inc. 1996

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