# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Motorola MC74LVQ373 Data Sheet

Summary

The MC74LVQ373 is a high-performance, non-inverting octal transparent latch designed for robust, low-power data buffering in modern electronics. Operating efficiently within a 2.7V to 3.6V range, it provides eight D-type latches with controlled 3-state outputs, making it ideal for memory element applications in TTL level buses. This technical guide details the device's electrical characteristics, operating modes (latch enabled/disabled), and essential specifications to help engineers implement reliable data storage solutions in low-voltage systems.

📄 Preview PAGE OF 8

Page 1 Text Content

查询MC74LVQ373供应商 SEMICONDUCTOR TECHNICAL DATA

$! "! !  ! ! !!  #! The MC74LVQ373 is a high performance, non–inverting octal transparent latch operating from a 2.7 to 3.6V supply. The MC74LVQ373 LVQ is suitable for TTL level bus oriented applications where a memory element is required. The MC74LVQ373 contains 8 D–type latches with 3–state outputs.

LOW–VOLTAGE

When the Latch Enable (LE) input is HIGH, data on the Dn inputs enters

CMOS OCTAL

the latches. In this condition, the latches are transparent, i.e., a latch

output will change state each time its D input changes. When LE is LOW, TRANSPARENT LATCH

the latches store the information that was present on the D inputs a setup time preceding the HIGH–to–LOW transition of LE. The 3–state standard outputs are controlled by the Output Enable (OE) input. When OE is LOW, the standard outputs are enabled. When OE is HIGH, the standard outputs are in the high impedance state, but this does not interfere with new data entering into the latches. Current drive capability is 12m A at the DW SUFFIX outputs. PLASTIC SOIC

CASE 751D–04

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

M SUFFIX

Threshold Performance

PLASTIC SOIC EIAJ

Guaranteed Skew Specifications CASE 967–01 Guaranteed Incident Wave Switching into 75Ω Low Static Supply Current (10µA) Substantially Reduces System Power Requirements

SD SUFFIX

Latchup Performance Exceeds 500m A

PLASTIC SSOP

ESD Performance: Human Body Model >2000V

CASE 940C–03

DT SUFFIX PLASTIC TSSOP

Pinout: 20–Lead (Top View)

CASE 948E–02

VCC O7 D7 D6 O6 O5 D5 D4 O4 LE

PIN NAMES

Pins Function OE Output Enable Input

LE Latch Enable Input D0–D7 Data Inputs O0–O7 3–State Latch Outputs

OE O0 D0 D1 O1 O2 D2 D3 O3 GND

REV 1 Motorola, Inc. 1995

Page Summary Contents For Motorola MC74LVQ373 Data Sheet

Page 1 查询MC74LVQ373供应商 SEMICONDUCTOR TECHNICAL DATA $! "! !  ! ! !!  #! The MC74LVQ373 is a high performance, non–inverting octal transparent latch operating from a 2.7 t...
Page 2 MC74LVQ373 LOGIC DIAGRAM INTERNAL INPUTS LATCHES OUTPUTS OE LE Dn On OPERATING MODE Transparent (Latch Disabled); Read Latch Latched (Latch Enabled) Read Latch NC NC Hold; Read Latch NC Hold; Disabled...
Page 3 MC74LVQ373 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 MC74LVQ373 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 MC74LVQ373 Dn 50% VCC50% VCC t PHLt PLH On 50% VCC 50% VCC WAVEFORM 1 – PROPAGATION DELAYS t R = t F = 2.5ns, 10% to 90%; f = 1MHz; t W = 500ns VCC VCC 50% VCC 50% VCC Dn 50% VCC t PZH t PHZ VCC VCC V...
Page 6 MC74LVQ373 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 MC74LVQ373 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 MC74LVQ373 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 216.21 KB
Published May 30, 2026
42 views

Enter the captcha to get the download link:

captcha

Frequently Asked Questions

What is the operational voltage range for this latch?

The MC74LVQ373 operates using a supply voltage between 2.7V and 3.6V.

How do I temporarily store data using this device?

Data is stored when Latch Enable (LE) is LOW, holding the state received prior to the LE transition.

What does the Output Enable (OE) pin control?

When OE is HIGH, the standard outputs are in a high impedance state; enabling them requires setting OE to LOW.

What are the device's key performance ratings?

It features an ESD rating exceeding 2000V and a latchup performance that exceeds 500mA.