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TCA6416A Low-Voltage 16-Bit I2C and SMBus I/O Expander With Voltage Translation, Interrupt Output, Reset Input, and Configuration Registers
SCPS194F
May 2009 – January 2023
TCA6416A
PRODUCTION DATA
CONTENTS
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TCA6416A Low-Voltage 16-Bit I2C and SMBus I/O Expander With Voltage Translation, Interrupt Output, Reset Input, and Configuration Registers
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and 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
I2C Interface Timing Requirements
6.7
Reset Timing Requirements
6.8
Switching Characteristics
6.9
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagrams
8.3
Feature Description
8.3.1
Voltage Translation
8.3.2
I/O Port
8.3.3
Interrupt Output ( INT)
8.3.4
Reset Input ( RESET)
8.4
Device Functional Modes
8.4.1
Power-On Reset
8.5
Programming
8.5.1
I2C Interface
8.6
Register Maps
8.6.1
Device Address
8.6.2
Control Register and Command Byte
8.6.3
Register Descriptions
8.6.4
Bus Transactions
8.6.4.1
Writes
8.6.4.2
Reads
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Minimizing ICC When I/Os Control LEDs
9.2.3
Application Curves
10
Power Supply Recommendations
10.1
Power-On Reset Requirements
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Receiving Notification of Documentation Updates
12.2
Support Resources
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
PW|24
MPDS363A
RTW|24
MPQF167C
Thermal pad, mechanical data (Package|Pins)
RTW|24
QFND062N
Orderable Information
scps194f_oa
scps194f_pm
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DATA SHEET
TCA6416A Low-Voltage 16-Bit I2C and SMBus I/O Expander With Voltage Translation, Interrupt Output, Reset Input, and Configuration Registers
1
Features
I
2
C to parallel port expander
Operating power-supply voltage range of 1.65 V to 5.5 V
Allows bidirectional voltage-level translation and GPIO expansion between 1.8-V, 2.5-V, 3.3-V, and 5-V I
2
C Bus and P-ports
Low standby current consumption of 3 μA
5-V Tolerant I/O ports
400-kHz Fast I
2
C bus
Hardware address pin allows two TCA6416A devices on the same I
2
C/SMBus bus
Active-low reset input (
RESET
)
Open-drain active-low interrupt output (
INT
)
Input/output configuration register
Polarity inversion register
Internal power-on reset
Power-up with all channels configured as inputs
No glitch on power up
Noise filter on SCL and SDA inputs
Latched outputs with high-current drive maximum capability for directly driving LEDs
Latch-up performance exceeds 100 mA Per JESD 78, class II
ESD Protection exceeds JESD 22
2000-V Human-body model (A114-A)
200-V Machine model (A115-A)
1000-V Charged-device model (C101)
2
Applications
Servers
Routers (telecom switching equipment)
Personal computers
Personal electronics
(for example, gaming consoles)
Industrial automation
Products with GPIO-limited processors