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TCAL6416 16-Bit Translating I2C-Bus, SMBus I/O Expander With Interrupt Output, Reset, and Agile I/O Configuration Registers
SCPS276D
June 2022 – January 2025
TCAL6416
PRODUCTION DATA
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TCAL6416 16-Bit Translating I2C-Bus, SMBus I/O Expander With Interrupt Output, Reset, and Agile I/O Configuration Registers
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
Timing Requirements
5.7
I2C Bus Timing Requirements
5.8
Switching Characteristics
5.9
Typical Characteristics
6
Parameter Measurement Information
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagrams
7.3
Feature Description
7.3.1
Voltage Translation
7.3.2
I/O Port
7.3.3
Adjustable Output Drive Strength
7.3.4
Interrupt Output (INT)
7.3.5
Reset Input (RESET)
7.3.6
Software Reset Call
7.4
Device Functional Modes
7.4.1
Power-On Reset
7.5
Programming
7.5.1
I2C Interface
7.6
Register Maps
7.6.1
Device Address
7.6.2
Multiple Power-Up Default Conditions
7.6.3
Control Register and Command Byte
7.6.4
Register Descriptions
7.6.5
Bus Transactions
7.6.5.1
Writes
7.6.5.2
Reads
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Minimizing ICC When I/Os Control LEDs
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.3.1
Power-On Reset Requirements
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Receiving Notification of Documentation Updates
9.2
Support Resources
9.3
Trademarks
9.4
Electrostatic Discharge Caution
9.5
Glossary
10
Revision History
11
Device and Documentation Support
11.1
Receiving Notification of Documentation Updates
11.2
Support Resources
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Mechanical, Packaging, and Orderable Information
12.1
Mechanical Data
IMPORTANT NOTICE
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Data Sheet
TCAL6416
16-Bit Translating I
2
C-Bus, SMBus I/O Expander With Interrupt Output, Reset, and Agile I/O Configuration Registers
1
Features
Operating power-supply voltage range of 1.08V to 3.6V
Allows bidirectional voltage-level translation and GPIO expansion between 1.2V, 1.8V, 2.5V, and 3.3V I
2
C bus and p-ports
Low standby current consumption of 1µA typical at 1.8V
1-MHz fast mode plus I
2
C bus
Hardware address pin allows two devices on the same I
2
C, SMBus bus
Active-low reset input (
RESET
)
Open-drain active-low interrupt output (
INT
)
Input or output configuration register
Polarity inversion register
Configurable I/O drive strength register
Pull-up and pull-down resistor configuration register
Internal power-on reset
Noise filter on SCL or SDA inputs
Latched outputs with high-current drive maximum capability for directly driving LEDs
Latch-up performance exceeds 100mA per JESD 78, class II
ESD protection exceeds JESD 22
4000V Human-body model (A114A)
1000V Charged-device model (C101)
2
Applications
Servers
Routers (telecom switching equipment)
Personal computers
Personal electronics
Industrial automation
Gaming
consoles
Products with GPIO-limited processors