TCA9555_16 Datasheet, PDF (2/46 Pages) Texas Instruments – Low-Voltage 16-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers

TCA9555
SCPS200D – JULY 2009 – REVISED JULY 2016
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Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Description (continued)......................................... 3
6 Pin Configuration and Functions ......................... 4
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ..................................... 5
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 6
7.5 Electrical Characteristics........................................... 6
7.6 I²C Interface Timing Requirements.......................... 7
7.7 Switching Characteristics .......................................... 8
7.8 Typical Characteristics .............................................. 9
8 Parameter Measurement Information ................ 12
9 Detailed Description ............................................ 15
9.1 Overview ................................................................. 15
9.2 Functional Block Diagram ....................................... 15
9.3 Feature Description................................................. 15
9.4 Device Functional Modes........................................ 16
9.5 Programming........................................................... 16
9.6 Register Maps ......................................................... 24
10 Application and Implementation........................ 25
10.1 Application Information.......................................... 25
10.2 Typical Application ............................................... 25
11 Power Supply Recommendations ..................... 29
12 Layout................................................................... 31
12.1 Layout Guidelines ................................................. 31
12.2 Layout Example .................................................... 31
13 Device and Documentation Support ................. 32
13.1 Documentation Support ........................................ 32
13.2 Receiving Notification of Documentation Updates 32
13.3 Community Resources.......................................... 32
13.4 Trademarks ........................................................... 32
13.5 Electrostatic Discharge Caution ............................ 32
13.6 Glossary ................................................................ 32
14 Mechanical, Packaging, and Orderable
Information ........................................................... 32
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (June 2016) to Revision D
Page
• Added DB Package ............................................................................................................................................................... 1
Changes from Revision A (July 2009) to Revision B
Page
• Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional
Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device
and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1
Changes from Revision B (July 2015) to Revision C
Page
• Added RGE Package. ............................................................................................................................................................ 1
• Changed V_IH for I²C pins limited to V_CC, with note allowing higher voltage .......................................................................... 5
• Added I_OL for different T_j ........................................................................................................................................................ 5
• Removed ΔI_CC spec from the Electrical Characteristics table, added ΔI_CC typical characteristics graph .............................. 6
• Changed I_CC standby into different input states...................................................................................................................... 7
• Changed C_io maximum .......................................................................................................................................................... 7
• Removed ΔI_CC spec from the Electrical Characteristics table, added ΔI_CC typical characteristics graph .............................. 7
• Changed Typical characteristic plots with updated data ........................................................................................................ 9
• POR requirements, bounded lowest voltage allowed during glitch ..................................................................................... 30
2
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