SCPS226C
January 2011 – August 2018
TCA4311A
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified 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
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Rise-Time Accelerators
8.3.2
READY Digital Output
8.3.3
EN Low Current Disable
8.4
Device Functional Modes
8.4.1
Start-Up
8.4.2
Connection Circuitry
8.4.3
Missing ACK Event
8.4.3.1
System Impact
8.4.3.2
System Workaround
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.1.1
Input to Output Offset Voltage
9.2.1.2
Propagation Delays
9.2.2
Detailed Design Procedure
9.2.2.1
Resistor Pull-Up Value Selection
9.2.3
Application Curves
9.2.4
Live Insertion and Capacitance Buffering CompactPCI Application
9.2.4.1
Design Requirements
9.2.4.2
Detailed Design Procedure
9.2.4.3
Application Curves
9.2.5
Live Insertion and Capacitance Buffering PCI Application
9.2.5.1
Design Requirements
9.2.5.2
Detailed Design Procedure
9.2.5.3
Application Curves
9.2.6
Repeater/Bus Extender Application
9.2.6.1
Design Requirements
9.2.6.2
Detailed Design Procedure
9.2.6.3
Application Curves
9.2.7
Systems With Disparate Supply Voltages
9.2.7.1
Design Requirements
9.2.7.2
Detailed Design Procedure
9.2.7.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Receiving Notification of Documentation Updates
12.2
Community Resources
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
D|8
MSOI002K
DGK|8
MPDS028E
Thermal pad, mechanical data (Package|Pins)
Orderable Information
scps226c_oa
scps226c_pm
1
Features
Operating Power-Supply Voltage Range of 2.7 V to 5.5 V
Supports Bidirectional Data Transfer of I
2
C Bus Signals
SDA and SCL Lines are Buffered Which Increases Fanout
1-V Precharge on all SDA and SCL Lines Prevents Corruption During Live Board Insertion and Removal From Backplane
SDA and SCL Input Lines are Isolated From Outputs
Accommodates Standard Mode and Fast Mode I
2
C Devices
Improved Noise Immunity
Applications Include Hot Board Insertion and Bus Extension
Low I
CC
Chip Disable of < 1 μA
READY Open-Drain Output
Supports Clock Stretching, Arbitration, and Synchronization
Powered-Off High-Impedance I
2
C Pins
Open-Drain I
2
C Pins
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
8000-V Human-Body Model (A114-A)
200-V Machine Model (A115-A)
1000-V Charged-Device Model (C101)