PCA9543D, PCA9543PW, PCA9544 Selling Leads, Datasheet
MFG:ph Package Cooled:ph D/C:dc02
PCA9543D, PCA9543PW, PCA9544 Datasheet download
Part Number: PCA9543D
MFG: ph
Package Cooled: ph
D/C: dc02
PCA9543D, PCA9543PW, PCA9544
- Table of contents:
Info of PCA9543D
Info of PCA9543PW
Info of PCA9544
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About PCA9543D
PDF/DataSheet Download
Datasheet: PCA9543D
File Size: 123684 KB
Manufacturer: PHILIPS [Philips Semiconductors]
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About PCA9543PW
PDF/DataSheet Download
Datasheet: PCA9543PW
File Size: 123684 KB
Manufacturer: PHILIPS [Philips Semiconductors]
Download : Click here to Download
About PCA9544
PDF/DataSheet Download
Datasheet: PCA9544
File Size: 79036 KB
Manufacturer: PHILIPS [Philips Semiconductors]
Download : Click here to Download
PCA9544 General Description
The PCA9544 is a 1-of-4 bi-directional translating multiplexer, controlled via the I2C bus. The SCL/SDA upstream pair fans out to four SCx/SDx downstream pairs, or channels. Only one SCx/SDx channel is selected at a time, determined by the contents of the programmable control register. Four interrupt inputs, one for each of the SCx/SDx downstream pair, are provided. One interrupt output, which acts as an AND of the four interrupt inputs, is provided. All I/O pins are 5 V tolerant.
The pass gates of the multiplexer are constructed such that the VDD pin can be used to limit the maximum high voltage which will be passed by the PCA9544. This allows the use of different bus voltages on each SCx/SDx pair, so that 3.3 V parts can communicate with 5 V parts without any additional protection. External pull-up resistors can pull the bus up to the desired voltage level for this channel.
The pass gates of the multiplexer are constructed such that the VDD pin can be used to limit the maximum high voltage which will be passed by the PCA9544. This allows the use of different bus voltages on each SCx/SDx pair, so that 3.3 V parts can communicate with 5 V parts without any additional protection. External pull-up resistors can pull the bus up to the desired voltage level for this channel.
PCA9544 Maximum Ratings
| symbol | partameter | conditions | RATINGMINMAX | unit | |
| VDD | DC supply voltage | -0.5to +7.0 | V | ||
| VI | DC input voltage | -0.5 to+7.0 | V | ||
| Ii | DC input current | ±20 | MA | ||
| IO | DC output current | ±25 | MA | ||
| I DC | DC Supply current | ±100 | MA | ||
| ISS | DC Supply current | ±100 | MA | ||
| Ptot | total power dissipation | 400 | MW | ||
| Tstg | Storage temperature range | 60 to+150 | °C | ||
| Tamb | Operating ambient temperature | 0to70 | °C | ||
PCA9544 Features
• 1-of-4 bi-directional translating multiplexer
• Channel selection via I2C bus
• Operating supply voltage 2.5 to 3.6 V
• Operating temperature range 0°C to 70°C
• Power-up with all multiplexer channels deselected
• 3 address pins, allowing up to 8 devices on the I2C bus
• Low on resistance
• Channel selection via I2C bus
• Operating supply voltage 2.5 to 3.6 V
• Operating temperature range 0°C to 70°C
• Power-up with all multiplexer channels deselected
• 3 address pins, allowing up to 8 devices on the I2C bus
• Low on resistance
PCA9544 Connection Diagram
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