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Fixed-direction voltage translators

SN74AVC2T244

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Dual-Bit Dual-Supply Bus Transceiver

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Data sheet

SN74AVC2T244

ACTIVE
Data sheet Order now

Product details

Technology family AVC Bits (#) 2 Configuration 2 Ch A to B 0 Ch B to A High input voltage (min) (V) 0.81 High input voltage (max) (V) 3.6 Vout (min) (V) 3000 Vout (max) (V) 3.6 Data rate (max) (Mbps) 380 IOH (max) (mA) -24 IOL (max) (mA) -24 Supply current (max) (µA) 3.6 Features 1.4, 2.16 Input type Standard CMOS Output type 3-State, Balanced CMOS Rating Catalog Operating temperature range (°C) -40 to 85
Technology family AVC Bits (#) 2 Configuration 2 Ch A to B 0 Ch B to A High input voltage (min) (V) 0.81 High input voltage (max) (V) 3.6 Vout (min) (V) 3000 Vout (max) (V) 3.6 Data rate (max) (Mbps) 380 IOH (max) (mA) -24 IOL (max) (mA) -24 Supply current (max) (µA) 3.6 Features 1.4, 2.16 Input type Standard CMOS Output type 3-State, Balanced CMOS Rating Catalog Operating temperature range (°C) -40 to 85
X2SON (DQE) 8 1.4 mm² 1.4 x 1 X2SON (DQM) 8 2.16 mm² 1.8 x 1.2
  • Wide Operating VCC Range of 0.9 V to 3.6 V
  • Low Static-Power Consumption, 6-µA Max ICC
  • Output Enable Feature Allows User to Disable Outputs to Reduce Power Consumption
  • ±24-mA Output Drive at 3.0 V
  • Ioff Supports Partial Power-Down-Mode Operation
  • Input Hysteresis Allows Slow Input Transition and Better Switching Noise Immunity at Input
  • Maximum Data Rates
    • 380 Mbps (1.8-V to 3.3-V Translation)
    • 200 Mbps (<1.8-V to 3.3-V Translation)
    • 200 Mbps (Translate to 2.5 V or 1.8 V)
    • 150 Mbps (Translate to 1.5 V)
    • 100 Mbps (Translate to 1.2 V)
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 5000-V Human-Body Model (A114-A)
  • Wide Operating VCC Range of 0.9 V to 3.6 V
  • Low Static-Power Consumption, 6-µA Max ICC
  • Output Enable Feature Allows User to Disable Outputs to Reduce Power Consumption
  • ±24-mA Output Drive at 3.0 V
  • Ioff Supports Partial Power-Down-Mode Operation
  • Input Hysteresis Allows Slow Input Transition and Better Switching Noise Immunity at Input
  • Maximum Data Rates
    • 380 Mbps (1.8-V to 3.3-V Translation)
    • 200 Mbps (<1.8-V to 3.3-V Translation)
    • 200 Mbps (Translate to 2.5 V or 1.8 V)
    • 150 Mbps (Translate to 1.5 V)
    • 100 Mbps (Translate to 1.2 V)
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 5000-V Human-Body Model (A114-A)

This 2-bit unidirectional translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 0.9 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 0.9 V to 3.6 V. This allows for low-voltage translation between 0.9-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V and 3.6-V voltage nodes. For the SN74AVC2T244, when the output-enable ( OE) input is high, all outputs are placed in the high-impedance state. The SN74AVC2T244 is designed so that the OE input circuit is referenced to VCCA. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

This 2-bit unidirectional translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 0.9 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 0.9 V to 3.6 V. This allows for low-voltage translation between 0.9-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V and 3.6-V voltage nodes. For the SN74AVC2T244, when the output-enable ( OE) input is high, all outputs are placed in the high-impedance state. The SN74AVC2T244 is designed so that the OE input circuit is referenced to VCCA. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

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Technical documentation

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Type Title Date
* Data sheet SN74AVC2T244 2-Bit Unidirectional Voltage-level Translator datasheet (Rev. C) PDF | HTML 12 Mar 2021
Application note Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators PDF | HTML 12 Jul 2024
Application note Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 03 Jul 2024
Selection guide Voltage Translation Buying Guide (Rev. A) 15 Apr 2021
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
Application note Voltage Translation Between 3.3-V, 2.5-V, 1.8-V, and 1.5-V Logic Standards (Rev. B) 30 Apr 2015
EVM User's guide SN74AVC2T244EVM 19 Sep 2011
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
Application note Selecting the Right Level Translation Solution (Rev. A) 22 Jun 2004
More literature LCD Module Interface Application Clip 09 May 2003
User guide AVC Advanced Very-Low-Voltage CMOS Logic Data Book, March 2000 (Rev. C) 20 Aug 2002
More literature Standard Linear & Logic for PCs, Servers & Motherboards 13 Jun 2002
Application note 16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) 22 May 2002
Application note Dynamic Output Control (DOC) Circuitry Technology And Applications (Rev. B) 07 Jul 1999
Application note AVC Logic Family Technology and Applications (Rev. A) 26 Aug 1998

Design & development

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

Evaluation board

SN74AVC2T244EVM — SN74AVC2T244 Evaluation Module

The SN74AVC2T244 is a 2-bit voltage level translator. This translator is a single direction voltage translator, with OE. When the output-enable (OE) input is high, all outputs are placed in the high-impedance state. The A port is designed to track VCCA. VCCA accepts any supply voltage from 0.9V to (...)

User guide: PDF
Not available on TI.com
Evaluation board

TAS6424EQ1EVM — TAS6424E-Q1 evaluation module 75-W, 2-MHz, quad-channel digital input Class-D audio amplifier

The TAS6424EQ1EVM evaluation module (EVM) showcases the TAS6424E-Q1, a  2.1-Mhz, four-channel, digital input Class-D audio amplifier solution for automotive infotainment. The 2.1-Mhz switching frequency allows to significantly reduce inductor size.The TAS6424E-Q1 delivers 25 W (10% THD+N) per (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

SN74AVC2T244 IBIS Model

SCEM543.ZIP (55 KB) - IBIS Model
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Reference designs

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Design guide: PDF
Schematic: PDF
Reference designs

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Schematic: PDF
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