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MOTOROLA MC74LVQ244 LVQ User's Manual

Summary

The MC74LVQ244 is a high-performance octal buffer designed for low-power electronics requiring reliable signal buffering in LVQ memory address driving or TTL bus applications. This manual provides engineers with comprehensive details on electrical characteristics, deep application guidelines, and operating parameters for supplies ranging from 2.7V to 3.6V. Use this resource to ensure optimal signal integrity by analyzing pinouts, switching performance data (including guaranteed skew), and absolute maximum ratings for robust digital system design.

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SEMICONDUCTOR TECHNICAL DATA

The MC74LVQ244 is a high performance, non–inverting octal buffer operating from a 2.7 to 3.6V supply. The MC74LVQ244 is suitable for LVQ memory address driving and all TTL level bus oriented transceiver applications. Current drive capability is 12m A at the outputs. The Output Enable

LOW–VOLTAGE CMOS

(OE) input, when HIGH, disables the output by placing them in a HIGH Z

condition. OCTAL BUFFER

Designed for 2.7 to 3.6V VCC Operation – Ideal for Low Power/Low Noise Applications Guaranteed Simultaneous Switching Noise Level and Dynamic Threshold Performance

Guaranteed Skew Specifications DW SUFFIX PLASTIC SOIC

Guaranteed Incident Wave Switching into 75Ω

CASE 751D–04

Low Static Supply Current (10µA) Substantially Reduces System Power Requirements Latchup Performance Exceeds 500m A ESD Performance: Human Body Model >2000V M SUFFIX

PLASTIC SOIC EIAJ CASE 967–01

Pinout: 20–Lead (Top View)

SD SUFFIX

VCC 2OE 1O0 2D0 1O1 2D1 1O2 2D2 1O3 2D3

PLASTIC SSOP CASE 940C–03

DT SUFFIX PLASTIC TSSOP CASE 948E–02

1OE 1D0 2O0 1D1 2O1 1D2 2O2 1D3 2O3 GND

PIN NAMES

Pins Function n OE Output Enable Inputs

1Dn, 2Dn Data Inputs 1On, 2On 3–State Outputs

REV 2 Motorola, Inc. 1995

Page Summary Contents For MOTOROLA MC74LVQ244 LVQ User's Manual

Page 1 SEMICONDUCTOR TECHNICAL DATA The MC74LVQ244 is a high performance, non–inverting octal buffer operating from a 2.7 to 3.6V supply. The MC74LVQ244 is suitable for LVQ memory address driving and all TTL...
Page 2 MC74LVQ244 LOGIC DIAGRAM INPUTS OUTPUTS 1OE 1Dn 2OE 2Dn 1On, 2On H = High Voltage Level; L = Low Voltage Level; Z = High Impedance State; X = High or Low Voltage Level and Transitions Are Acceptable, ...
Page 3 MC74LVQ244 ABSOLUTE MAXIMUM RATINGS* Symbol Parameter Value Condition Unit VCC DC Supply Voltage –0.5 to +7.0 VI DC Input Voltage –0.5 ≤ VI ≤ VCC + 0.5V VO DC Output Voltage –0.5 ≤ VO ≤ VCC + 0.5 Outp...
Page 4 MC74LVQ244 DYNAMIC SWITCHING CHARACTERISTICS (VCC = 3.3V) TA = +25°C Symbol Characteristic Condition Min Typ Max Unit VOLP Dynamic LOW Peak Voltage (Note 1) CL = 50p F, VIH = 3.3V, VIL = 0V 0.6 1.0 VO...
Page 5 MC74LVQ244 1Dn, 2Dn 50% VCC50% VCC t PHLt PLH 1On, 2On 50% VCC 50% VCC WAVEFORM 1 – PROPAGATION DELAYS t R = t F = 2.5ns, 10% to 90%; f = 1MHz; t W = 500ns 1OE, 2OE 50% VCC 50% VCC t PZH t PHZ VCC VOH...
Page 6 MC74LVQ244 OUTLINE DIMENSIONS DW SUFFIX PLASTIC SOIC PACKAGE CASE 751D–04 ISSUE E NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AN...
Page 7 MC74LVQ244 OUTLINE DIMENSIONS SD SUFFIX NOTES: PLASTIC SSOP PACKAGE DIMENSIONING AND TOLERANCING PER ANSI CASE 940C–03 Y14.5M, 1982. CONTROLLING DIMENSION: MILLIMETER. ISSUE B DIMENSION A DOES NOT INC...
Page 8 MC74LVQ244 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products ...

Manual Details

Brand Motorola
Pages 8
File Size 202.09 KB
Published June 02, 2026
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Frequently Asked Questions

What operating voltage range is recommended for this chip?

The MC74LVQ244 is designed to operate optimally from 2.7V to 3.6V VCC.

How do I disable the output signal on this device?

Applying a LOW voltage to the Output Enable (OE) input disables the outputs by placing them in a HIGH Z OCTAL BUFFER condition.

What is the guaranteed current drive capability of the outputs?

The chip has an output current drive capability of 12mA.

Does this device consume much power when idle?

No, it features low static supply current, operating at only 10μA.