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SN74AVC2T244DQER

更新时间： 2024-11-26 12:21:51
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德州仪器 - TI /
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12页 604K
描述
2-BIT UNDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR

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SN74AVC2T244DQER 数据手册

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SN74AVC2T244  
www.ti.com  
SCES767B –SEPTEMBER 2011–REVISED SEPTEMBER 2011  
2-BIT UNDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR  
Check for Samples: SN74AVC2T244  
1
FEATURES  
•
•
•
Wide Operating VCC Range of 0.9 V to 3.6 V  
•
•
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
Low Static-Power Consumption, 6-µA Max ICC  
ESD Protection Exceeds JESD 22  
Output Enable Feature Allows User to Disable  
Outputs to Reduce Power Consumption  
–
5000-V Human-Body Model (A114-A)  
•
•
±24-mA Output Drive at 3.0 V  
APPLICATIONS  
Ioff Supports Partial Power-Down-Mode  
Operation  
•
Handset, Smartphone, Tablet, Server  
•
•
Input Hysteresis Allows Slow Input Transition  
and Better Switching Noise Immunity at Input  
DQE/DQM PACKAGE  
(TOP VIEW)  
Maximum Data Rates  
1
2
3
4
8
7
6
5
VCCA  
A1  
VCCB  
B1  
–
–
–
–
–
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)  
A2  
B2  
OE  
GND  
100 Mbps (Translate to 1.2 V)  
DESCRIPTION/ORDERING INFORMATION  
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.  
ORDERING INFORMATION(1)  
ORDERABLE  
PART NUMBER  
TA  
PACKAGE(2)  
TOP-SIDE MARKING  
DQE – MicroQFN  
DQM – MicroQFN  
SN74AVC2T244DQER  
SN74AVC2T244DQMR  
VA  
–40°C to 85°C  
VAH  
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
web site at www.ti.com.  
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2011, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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