Datasheet Texas Instruments PCA9557
| Manufacturer | Texas Instruments |
| Series | PCA9557 |
Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers
Datasheets
PCA9557 Remote 8-Bit I2C and SMBus Low-Power I/O Expander datasheet
PDF, 1.3 Mb, Revision: J, File published: Jun 12, 2014
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Prices
Status
| PCA9557D | PCA9557DB | PCA9557DBR | PCA9557DGVR | PCA9557DR | PCA9557DT | PCA9557PW | PCA9557PWR | PCA9557PWRG4 | PCA9557PWT | PCA9557RGVR | PCA9557RGVRG4 | PCA9557RGYR | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | No | Yes | Yes | Yes | No | Yes | No | Yes | Yes | No | No | Yes |
Packaging
| PCA9557D | PCA9557DB | PCA9557DBR | PCA9557DGVR | PCA9557DR | PCA9557DT | PCA9557PW | PCA9557PWR | PCA9557PWRG4 | PCA9557PWT | PCA9557RGVR | PCA9557RGVRG4 | PCA9557RGYR | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| Pin | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Package Type | D | DB | DB | DGV | D | D | PW | PW | PW | PW | RGV | RGV | RGY |
| Industry STD Term | SOIC | SSOP | SSOP | TVSOP | SOIC | SOIC | TSSOP | TSSOP | TSSOP | TSSOP | VQFN | VQFN | VQFN |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | S-PQFP-N | S-PQFP-N | R-PQFP-N |
| Package QTY | 40 | 80 | 2000 | 2000 | 2500 | 250 | 90 | 2000 | 2000 | 250 | 2500 | 2500 | 3000 |
| Carrier | TUBE | TUBE | LARGE T&R | LARGE T&R | LARGE T&R | SMALL T&R | TUBE | LARGE T&R | LARGE T&R | SMALL T&R | LARGE T&R | LARGE T&R | LARGE T&R |
| Device Marking | PCA9557 | PD557 | PD557 | PD557 | PCA9557 | PCA9557 | PD557 | PD557 | PD557 | PD557 | PD557 | PD557 | PD557 |
| Width (mm) | 3.91 | 5.3 | 5.3 | 4.4 | 3.91 | 3.91 | 4.4 | 4.4 | 4.4 | 4.4 | 4 | 4 | 3.5 |
| Length (mm) | 9.9 | 6.2 | 6.2 | 3.6 | 9.9 | 9.9 | 5 | 5 | 5 | 5 | 4 | 4 | 4 |
| Thickness (mm) | 1.58 | 1.95 | 1.95 | 1.05 | 1.58 | 1.58 | 1 | 1 | 1 | 1 | .9 | .9 | .9 |
| Pitch (mm) | 1.27 | .65 | .65 | .4 | 1.27 | 1.27 | .65 | .65 | .65 | .65 | .65 | .65 | .5 |
| Max Height (mm) | 1.75 | 2 | 2 | 1.2 | 1.75 | 1.75 | 1.2 | 1.2 | 1.2 | 1.2 | 1 | 1 | 1 |
| Mechanical Data | Download | Download | Download | Download | Download | Download | Download | Download | Download | Download | Download | Download | Download |
Parametrics
| Parameters / Models | PCA9557D | PCA9557DB | PCA9557DBR | PCA9557DGVR | PCA9557DR | PCA9557DT | PCA9557PW | PCA9557PWR | PCA9557PWRG4 | PCA9557PWT | PCA9557RGVR | PCA9557RGVRG4 | PCA9557RGYR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| I2C Address | 0011 xxx | 0011 xxx | 0011 xxx | 0011 xxx | 0011 xxx | 0011 xxx | 0011 xxx | 0011 xxx | 0011 xxx | 0011 xxx | 0011 xxx | 0011 xxx | 0011 xxx |
| Max Frequency, kHz | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 |
| Number of I/Os | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Operating Temperature Range, C | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Package Group | SOIC | SSOP | SSOP | TVSOP | SOIC | SOIC | TSSOP | TSSOP | TSSOP | TSSOP | VQFN | VQFN | VQFN |
| Rating | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| VCC(Max), V | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| VCC(Min), V | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| Voltage Nodes, V | 2.7,3.3,3.6,5 | 2.7,3.3,3.6,5 | 2.7,3.3,3.6,5 | 2.7,3.3,3.6,5 | 2.7,3.3,3.6,5 | 2.7,3.3,3.6,5 | 2.7,3.3,3.6,5 | 2.7,3.3,3.6,5 | 2.7,3.3,3.6,5 | 2.7,3.3,3.6,5 | 2.7,3.3,3.6,5 | 2.7,3.3,3.6,5 | 2.7,3.3,3.6,5 |
| fSCLK(Max), MHz | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 |
Eco Plan
| PCA9557D | PCA9557DB | PCA9557DBR | PCA9557DGVR | PCA9557DR | PCA9557DT | PCA9557PW | PCA9557PWR | PCA9557PWRG4 | PCA9557PWT | PCA9557RGVR | PCA9557RGVRG4 | PCA9557RGYR | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Application Notes
- Programming Fun Lights With TI's TCA6507PDF, 109 Kb, File published: Nov 30, 2007
- 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: PCA9557 (13)
Manufacturer's Classification
- Semiconductors> Interface> I2C> I2C IO Expander
