Datasheet Texas Instruments TCA9538
| Manufacturer | Texas Instruments |
| Series | TCA9538 |
Remote 8-Bit I2C and SMBus Low-Power I/O Expander
Datasheets
TCA9538 Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander with Interrupt Output, Reset, and Configuration Registers datasheet
PDF, 1.1 Mb, Revision: D, File published: Oct 10, 2016
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Prices
Status
| TCA9538DBR | TCA9538PWR | |
|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | Yes |
Packaging
| TCA9538DBR | TCA9538PWR | |
|---|---|---|
| N | 1 | 2 |
| Pin | 16 | 16 |
| Package Type | DB | PW |
| Industry STD Term | SSOP | TSSOP |
| JEDEC Code | R-PDSO-G | R-PDSO-G |
| Package QTY | 2000 | 2000 |
| Carrier | LARGE T&R | LARGE T&R |
| Device Marking | TD538 | PW538 |
| Width (mm) | 5.3 | 4.4 |
| Length (mm) | 6.2 | 5 |
| Thickness (mm) | 1.95 | 1 |
| Pitch (mm) | .65 | .65 |
| Max Height (mm) | 2 | 1.2 |
| Mechanical Data | Download | Download |
Parametrics
| Parameters / Models | TCA9538DBR | TCA9538PWR |
|---|---|---|
| I2C Address | 1110 0xx | 1110 0xx |
| Max Frequency, kHz | 400 | 400 |
| Number of I/Os | 8 | 8 |
| Operating Temperature Range, C | -40 to 85 | -40 to 85 |
| Package Group | SSOP | TSSOP |
| Rating | Catalog | Catalog |
| VCC(Max), V | 5.5 | 5.5 |
| VCC(Min), V | 1.65 | 1.65 |
| Voltage Nodes, V | 1.8,2.7,3.3,3.6,5 | 1.8,2.7,3.3,3.6,5 |
| fSCLK(Max), MHz | 0.4 | 0.4 |
Eco Plan
| TCA9538DBR | TCA9538PWR | |
|---|---|---|
| RoHS | Compliant | Compliant |
Application Notes
- Choosing the Correct I2C Device for New DesignsPDF, 87 Kb, File published: Sep 7, 2016
The I2C bus is a very popular and powerful bus used for communication between a single (or multiple)master and a single (or multiple) slave device. In many applications there is a potential need for moreslave devices on the bus, isolation between similar addressed slaves, or a need for more I/Os. Theseneeds can be solved with an I2C buffer, switch, and I/O expander.The application note h - Maximum Clock Frequency of I2C Bus Using RepeatersPDF, 116 Kb, File published: May 15, 2015
TCA9617 Maximum Allowed Frequency on I2C Bus Using Repeaters - I2C Bus Pull-Up Resistor CalculationPDF, 157 Kb, File published: Feb 13, 2015
- Understanding the I2C BusPDF, 124 Kb, File published: Jun 30, 2015
Model Line
Series: TCA9538 (2)
Manufacturer's Classification
- Semiconductors> Interface> I2C> I2C IO Expander
