Datasheet Texas Instruments PCA9544AGQNR
| Manufacturer | Texas Instruments |
| Series | PCA9544A |
| Part Number | PCA9544AGQNR |
Datasheets
PCA9544A Low Voltage 4-Channel IВІC and SMBus Multiplexer With Interrupt Logic datasheet
PDF, 1.4 Mb, Revision: E, File published: Jun 12, 2014
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Prices
Status
| Lifecycle Status | Obsolete (Manufacturer has discontinued the production of the device) |
| Manufacture's Sample Availability | No |
Packaging
| Pin | 20 |
| Package Type | GQN |
| Industry STD Term | BGA MICROSTAR JUNIOR |
| JEDEC Code | R-PBGA-N |
| Device Marking | PD544A |
| Width (mm) | 3 |
| Length (mm) | 4 |
| Thickness (mm) | .75 |
| Pitch (mm) | .65 |
| Max Height (mm) | 1 |
| Mechanical Data | Download |
Parametrics
| Approx. Price (US$) | 0.63 | 1ku |
| Channel Width | 4 |
| I2C Address | 1110 xxx |
| Max Frequency(kHz) | 400 |
| Operating Temperature Range(C) | -40 to 85 |
| Package Group | SOIC BGA MICROSTAR JUNIOR TVSOP TSSOP VQFN |
| Package Size: mm2:W x L (PKG) | 20BGA MICROSTAR JUNIOR: 12 mm2: 3 x 4(BGA MICROSTAR JUNIOR) 20VQFN: 16 mm2: 3.5 x 4.5(VQFN) 20TVSOP: 32 mm2: 6.4 x 5(TVSOP) 20TSSOP: 42 mm2: 6.4 x 6.5(TSSOP) 20SOIC: 132 mm2: 10.3 x 12.8(SOIC) |
| Simultaneously Active Channels | 1 |
| Special Features | Interrupt Output 5V Tolerant I/O |
| VCC(Max)(V) | 5.5 |
| VCC(Min)(V) | 2.3 |
| fSCLK(Max)(MHz) | 0.4 |
| tpd max(ns) | 1 |
Eco Plan
| RoHS | Not Compliant |
| Pb Free | No |
Application Notes
- Troubleshooting I2C Bus ProtocolPDF, 184 Kb, File published: Oct 19, 2009
When using the I2Cв„ў bus protocol, the designer must ensure that the hardware complies with the I2C standard. This application report describes the I2C protocol and provides guidelines on debugging a missing acknowledgment, selecting the pullup resistors, or meeting the maximum capacitance load of an I2C bus. A conflict occurs if devices sharing the I2C bus have the same slave address. This - 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: PCA9544A (11)
Manufacturer's Classification
- Semiconductors > Interface > I2C > I2C Multiplexer, Switch
