SCPS225D
August 2011 – April 2021
TCA9509
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Description (continued)
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements
7.7
I2C Interface Timing Requirements
8
Parameter Measurement Information
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Two-Channel Bidirectional Buffer
9.3.2
Integrated A-Side Current Source
9.3.3
Standard Mode and Fast Mode Support
9.4
Device Functional Modes
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.2.1
Clock Stretching Support
10.2.2.2
VILC and Pulldown Strength Requirements
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Receiving Notification of Documentation Updates
13.2
Support Resources
13.3
Trademarks
13.4
Electrostatic Discharge Caution
13.5
Glossary
Package Options
Mechanical Data (Package|Pins)
DGK|8
MPDS028E
RVH|8
MPQF272B
Thermal pad, mechanical data (Package|Pins)
Orderable Information
scps225d_oa
scps225d_pm
1
Features
Two-channel bidirectional buffer
I
2
C bus and SMBus compatible
Operating supply voltage range of
2.7 V to 5.5 V on B side
Operating voltage range of 0.9 V to 5.5 V on
A side
Voltage-level translation from
0.9 V to 5.5 V and 2.7 V to 5.5 V
Active-high repeater-enable input
Requires no external pullup resistors on
lower-voltage port-A
Open-drain I
2
C I/O
5.5-V Tolerant I
2
C and enable input support mixed-mode signal operation
Lockup-free operation
Accommodates standard mode and fast mode I
2
C devices and multiple controllers
Supports arbitration and clock stretching across Repeater
Powered-off high-impedance I
2
C bus pins
Supports 400-kHz fast I
2
C bus operating speeds
Available in
1.6-mm × 1.6-mm, 0.4-mm height, 0.5-mm pitch QFN package
3-mm × 3-mm Industry standard MSOP package
Latch-up performance exceeds 100 mA Per JESD 78, class II
ESD protection exceeds JESD 22
2000-V Human-body model (A114-A)
1000-V Charged-device model (C101)