SN74LVC244A

ACTIVE

Octal Buffer/Driver With 3-State Outputs

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Product details

Parameters

Technology Family LVC VCC (Min) (V) 1.65 VCC (Max) (V) 3.6 Channels (#) 8 IOL (Max) (mA) 24 ICC (Max) (uA) 40 IOH (Max) (mA) -24 Input type Standard CMOS Output type 3-State Features Balanced outputs, Very high speed (tpd 5-10ns) Data rate (Mbps) 200 Rating Catalog open-in-new Find other Non-Inverting buffer/driver

Package | Pins | Size

PDIP (N) 20 229 mm² 24.33 x 9.4 SOIC (DW) 20 132 mm² 12.8 x 10.3 SOP (NS) 20 98 mm² 12.6 x 7.8 SSOP (DB) 20 38 mm² 5.3 x 7.2 TSSOP (PW) 20 42 mm² 6.5 x 6.4 TVSOP (DGV) 20 32 mm² 5 x 6.4 VQFN (RGY) 20 16 mm² 3.5 x 4.5 X1QFN (RWP) 20 8 mm² 3.3 x 2.5 open-in-new Find other Non-Inverting buffer/driver

Features

  • Operates From 1.65 V to 3.6 V
  • Inputs Accept Voltages to 5.5 V
  • Specified From –40°C to +85°C and –40°C to +125°C
  • Maximum tpd of 5.9 ns at 3.3 V
  • Typical VOLP (Output Ground Bounce) < 0.8 V at VCC = 3.3 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot) > 2 V at VCC = 3.3 V, TA = 25°C
  • Supports Mixed-Mode Signal Operation on All Ports (5-V Input or Output Voltage With 3.3-V VCC)
  • Ioff Supports Live Insertion, Partial-Power-Down Mode, and Back-Drive Protection
  • Can Be Used as a Down Translator to Translate Inputs From a Maximum of 5.5 V Down to the VCC Level
  • Available in Ultra Small Logic QFN Package (0.5 mm Maximum Height)
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model
    • 1000-V Charged-Device Model

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Description

These octal bus buffers are designed for 1.65-V to 3.6-V VCC operation. The SN74LVC244A devices are designed for asynchronous communication between data buses.

open-in-new Find other Non-Inverting buffer/driver
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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet SN74LVC244A Octal Buffer or Driver With 3-State Outputs datasheet (Rev. AC) Sep. 24, 2020
Selection guides Little Logic Guide 2018 (Rev. G) Jul. 06, 2018
Selection guides Logic Guide (Rev. AB) Jun. 12, 2017
Technical articles The next-generation QFN: Do you have what it takes to use it? Sep. 14, 2016
Application notes How to Select Little Logic (Rev. A) Jul. 26, 2016
Application notes Implications of Slow or Floating CMOS Inputs (Rev. D) Jun. 23, 2016
Application notes Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) Dec. 02, 2015
User guides LOGIC Pocket Data Book (Rev. B) Jan. 16, 2007
More literature Design Summary for WCSP Little Logic (Rev. B) Nov. 04, 2004
Application notes Semiconductor Packing Material Electrostatic Discharge (ESD) Protection Jul. 08, 2004
Application notes Selecting the Right Level Translation Solution (Rev. A) Jun. 22, 2004
User guides Signal Switch Data Book (Rev. A) Nov. 14, 2003
Application notes Use of the CMOS Unbuffered Inverter in Oscillator Circuits Nov. 06, 2003
More literature Logic Cross-Reference (Rev. A) Oct. 07, 2003
User guides LVC and LV Low-Voltage CMOS Logic Data Book (Rev. B) Dec. 18, 2002
Application notes Texas Instruments Little Logic Application Report Nov. 01, 2002
Application notes TI IBIS File Creation, Validation, and Distribution Processes Aug. 29, 2002
More literature Standard Linear & Logic for PCs, Servers & Motherboards Jun. 13, 2002
Application notes 16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) May 22, 2002
Application notes Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices May 10, 2002
More literature STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS Mar. 27, 2002
More literature Military Low Voltage Solutions Apr. 04, 2001
Application notes Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices Dec. 01, 1997
Application notes Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) Aug. 01, 1997
Application notes CMOS Power Consumption and CPD Calculation (Rev. B) Jun. 01, 1997
Application notes LVC Characterization Information Dec. 01, 1996
Application notes Input and Output Characteristics of Digital Integrated Circuits Oct. 01, 1996
Application notes Live Insertion Oct. 01, 1996
User guides Low-Voltage Logic (LVC) Designer's Guide Sep. 01, 1996
Application notes Understanding Advanced Bus-Interface Products Design Guide May 01, 1996

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
10
Description
This EVM is designed to support any logic device that has a D, DW, DB, NS, PW, P, N, or DGV package in a 14 to 24 pin count.
Features
  • Board design allows for versatility in evaluation
  • Supports a wide-range of logic devices
EVALUATION BOARDS Download
document-generic User guide
20
Description
Flexible EVM designed to support any logic or translation device that has a BQA, BQB, RGY (14-24 pin), RSV, RJW, or RHL package.
Features
  • Board design allows for versatility in evaluation
  • Supports a wide-range of logic and translation devices with included dual supply support
  • Board has 9 sections that can be broken apart for a smaller form factor

Design tools & simulation

SIMULATION MODELS Download
SCAJ008.ZIP (114 KB) - HSpice Model
SIMULATION MODELS Download
SCAM008C.ZIP (42 KB) - IBIS Model
SIMULATION MODELS Download
SCAM102.ZIP (7 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
Ultra-Small, Flexible LED Expansion Reference Design
TIDA-01233 — This document focuses on two reference designs using the SN74HC595B 8-bit Shift Register with 3-State Output Registers and the SN74LVC244A Octal Buffer with 3-State Outputs, each used to expand three general purpose outputs on a microcontroller to eight or more general purpose outputs. Both devices (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Wideband Receiver Design Using 66AK2L06 JESD204B Attach to ADC32RF80 Reference Design
TIDEP0081 — For wideband receiver system developers currently using FPGA or ASIC to connect High Speed data converters to a baseband processor, who need faster time to market with increased performance and significant reduction in cost, power, and size. This reference design includes the first widely available (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Thermal Printing with the PRU-ICSS on the BeagleBone Black Reference Design
TIDEP0056 The Programmable Realtime Unit – Industrial Communications Sub-System (PRU-ICSS) is a versatile component of the AM335x SoC that enables real-time, deterministic, fast GPIO control, even when running a non-deterministic operating system. This reference design provides a concrete use case and (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
BGA MICROSTAR JUNIOR (ZQN) 20 View options
PDIP (N) 20 View options
SO (NS) 20 View options
SOIC (DW) 20 View options
SSOP (DB) 20 View options
TSSOP (PW) 20 View options
TVSOP (DGV) 20 View options
VQFN (RGY) 20 View options
X1QFN (RWP) 20 View options

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