PCA9545APW,118
- Mfr.Part #
- PCA9545APW,118
- Manufacturer
- NXP Semiconductors
- Package / Case
- 20-TSSOP (0.173, 4.40mm Width)
- Datasheet
- Download
- Description
- IC INTERFACE SPECIALIZED 20TSSOP
- Stock
- 524,628
- In Stock :
- 524,628
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- Manufacturer :
- NXP Semiconductors
- Product Category :
- Specialized
- Supply Voltage :
- 3.3V
- Surface Mount :
- yes
- Terminal Pitch :
- 0.65mm
- Output Polarity :
- TRUE
- Terminal Finish :
- NICKEL PALLADIUM GOLD
- Published :
- 2003
- Base Part Number :
- PCA9545
- Temperature Grade :
- Industrial
- Additional Feature :
- ALSO OPERATES WITH 4.5 TO 5.5V SUPPLY
- Terminal Form :
- Gull wing
- Terminal Position :
- Dual
- Package / Case :
- 20-TSSOP (0.173, 4.40mm Width)
- Mounting Type :
- Surface Mount
- Operating Temperature (Min) :
- -40°C
- Height Seated (Max) :
- 1.1mm
- Qualification Status :
- Not Qualified
- Output Characteristics :
- OPEN-DRAIN
- HTS Code :
- 8542.39.00.01
- Time@Peak Reflow Temperature-Max (s) :
- 30
- Supply Voltage-Min (Vsup) :
- 2.3V
- Factory Lead Time :
- 10 Weeks
- Number of Functions :
- 1
- Logic IC Type :
- Multiplexer
- JESD-30 Code :
- R-PDSO-G20
- Number of Inputs :
- 4
- Peak Reflow Temperature (Cel) :
- 260
- Number of Terminations :
- 20
- Operating Temperature (Max) :
- 85°C
- Width :
- 4.4mm
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Interface :
- I2C, SMBus
- Pin Count :
- 20
- Voltage - Supply :
- 2.3V~5.5V
- Applications :
- 2-Channel I2C Multiplexer
- Number of Outputs :
- 1
- Propagation Delay (tpd) :
- 0.3 ns
- RoHS Status :
- ROHS3 Compliant
- Packaging :
- Tape and Reel (TR)
- Length :
- 6.5mm
- JESD-609 Code :
- e4
- Supply Voltage-Max (Vsup) :
- 3.6V
- Datasheets
- PCA9545APW,118

Specialized NXP Semiconductors PCA9545APW,118 Overview
The PCA9545APW,118 by NXP Semiconductors is a cutting-edge integrated circuit specifically designed for specialized interface applications. As a multi-channel I2C switch, this IC provides critical functionality by enabling up to four downstream channels to be selected, each channel being one of four I2C bus expansions. Housed in a compact 20TSSOP package, this device ensures a minimal footprint while maximizing reliability and performance, making it ideal for high-density applications that require multiple I2C buses. It is particularly suited for situations where board space is at a premium and multiple I2C devices are in use. This capability facilitates system design enhancements and increases the efficiency of I2C bus configurations in complex multi-slave and multi-master scenarios.
PCA9545APW,118 Features
The PCA9545APW,118 boasts several key features that make it an excellent choice for demanding applications. It includes four bidirectional translating switches that can connect multiple I2C devices with different voltage and frequency requirements. The IC also supports hot insertion and features an active interrupt aggregation function, which simplifies handling interrupts from multiple sources on a single line. Moreover, its built-in reset function ensures easy recovery and maintenance, enhancing system reliability.
PCA9545APW,118 Applications
- Server Management: Integrates multiple I2C sensors and devices within a server to manage thermal and power conditions effectively.
- Telecommunications: Used in telecom switching systems to manage data flow and signal integrity across various communication modules.
- Consumer Electronics: Facilitates communication between different I2C-enabled components within devices such as smartphones and tablets.
- Industrial Control: Helps in monitoring and controlling machinery in industrial settings by managing sensor arrays and control units via multiple I2C buses.
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