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SN74AXCH8T245 8-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation, Tri-State Outputs, and Bus-Hold Circuitry
SCES876A
August 2018 – January 2019
SN74AXCH8T245
PRODUCTION DATA.
CONTENTS
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SN74AXCH8T245 8-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation, Tri-State Outputs, and Bus-Hold Circuitry
1
Features
2
Applications
3
Description
Typical Application Schematic
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Switching Characteristics, VCCA = 0.7 V
6.7
Switching Characteristics, VCCA = 0.8 V
6.8
Switching Characteristics, VCCA = 0.9 V
6.9
Switching Characteristics, VCCA = 1.2 V
6.10
Switching Characteristics, VCCA = 1.5 V
6.11
Switching Characteristics, VCCA = 1.8 V
6.12
Switching Characteristics, VCCA = 2.5 V
6.13
Switching Characteristics, VCCA = 3.3 V
6.14
Operating Characteristics: TA = 25°C
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Up-Translation and Down-Translation From 0.65 V to 3.6 V
8.3.2
Multiple Direction Control Pins
8.3.3
Bus-Hold Circuitry
8.3.4
Ioff Supports Partial-Power-Down Mode Operation
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curve
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Documentation Support
12.1.1
Related Documentation
12.2
Receiving Notification of Documentation Updates
12.3
Community Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
RHL|24
MPQF163J
PW|24
MPDS363A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sces876a_oa
sces876a_pm
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DATA SHEET
SN74AXCH8T245 8-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation, Tri-State Outputs, and Bus-Hold Circuitry
1
Features
Qualified Fully Configurable Dual-Rail Design Allows Each Port to Operate With a Power Supply Range From 0.65 V to 3.6 V
Operating Temperature From –40°C to +125°C
Bus-hold on Data Inputs Eliminates the Need for External Pullup or Pulldown Resistors
Multiple Direction Control Pins to Allow Simultaneous Up and Down Translation
Up to 380 Mbps support when translating from 1.8 V to 3.3 V
V
CC
Isolation Feature to Effectively Isolate Both Buses in a Power-Down Scenario
Partial Power-Down Mode to Limit Backflow Current in a Power-Down Scenario
Compatible With SN74AVCH8T245 and 74AVCH8T245 Level Shifters
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
8000-V Human-Body Model
1000-V Charged-Device Model