TCA9534_16 Datasheet, PDF (2/38 Pages) Texas Instruments – Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander with Interrupt Output and Configuration Registers

TCA9534
SCPS197B – SEPTEMBER 2014 – REVISED NOVEMBER 2016
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Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ..................................... 4
6.2 Handling Ratings ...................................................... 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 5
6.6 I²C Interface Timing Requirements........................... 6
6.7 Switching Characteristics .......................................... 7
6.8 Typical Characteristics .............................................. 8
7 Parameter Measurement Information ................ 11
8 Detailed Description ............................................ 14
8.1 Overview ................................................................. 14
8.2 Functional Block Diagram ....................................... 15
8.3 Feature Description................................................. 16
8.4 Device Functional Modes........................................ 16
8.5 Programming........................................................... 16
8.6 Register Maps ......................................................... 18
9 Application and Implementation ........................ 23
9.1 Application Information............................................ 23
9.2 Typical Application ................................................. 23
10 Power Supply Recommendations ..................... 26
10.1 Power-On Reset Requirements ........................... 26
11 Layout................................................................... 28
11.1 Layout Guidelines ................................................. 28
11.2 Layout Example .................................................... 28
12 Device and Documentation Support ................. 29
12.1 Documentation Support ........................................ 29
12.2 Receiving Notification of Documentation Updates 29
12.3 Community Resources.......................................... 29
12.4 Trademarks ........................................................... 29
12.5 Electrostatic Discharge Caution ............................ 29
12.6 Glossary ................................................................ 29
13 Mechanical, Packaging, and Orderable
Information ........................................................... 29
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (September 2014) to Revision B
Page
• Updated the Description section............................................................................................................................................. 1
• Added DW package................................................................................................................................................................ 1
• Corrected ESD ratings to reflect ± ratings.............................................................................................................................. 4
• VIH values, improved performance ........................................................................................................................................ 4
• Made changes to I_OL in the Recommended Operating Conditions table................................................................................ 4
• Changed V_PORR limits ............................................................................................................................................................ 5
• Changed V_OH at V_CC = 1.65 V................................................................................................................................................. 5
• Updated I_OL in the Electrical Characteristics table.................................................................................................................. 5
• Changed I_CC in the Electrical Characteristics table ................................................................................................................ 6
• Deleted ΔI_CC parameter from the Electrical Characteristics table .......................................................................................... 6
• Increased the pin capacitance maximum, decreased typical ................................................................................................. 6
• Updated graphs in Typical Characteristics section ................................................................................................................ 8
• Updated Interrupt Output (INT) section ................................................................................................................................ 16
• Added the Calculating Junction Temperature and Power Dissipation section..................................................................... 24
• Added V_{CC_MV} to Table 8 ..................................................................................................................................................... 26
• Updated Figure 39 ............................................................................................................................................................... 26
Changes from Original (September 2014) to Revision A
Page
• Initial release of full version. .................................................................................................................................................. 1
2
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