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PCA9504A from PHIL,Philips

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PCA9504A

Manufacturer: PHIL, PH

Glue chip 4

Partnumber Manufacturer Quantity Availability
PCA9504A PHIL, PH 58 In Stock

Description and Introduction

Glue chip 4 The **PCA9504A** is a versatile, bidirectional I²C bus and SMBus voltage-level translator designed to facilitate seamless communication between devices operating at different voltage levels. This integrated circuit (IC) is particularly useful in mixed-voltage systems, where it ensures reliable data transfer between low-voltage and higher-voltage components without signal degradation.  

Featuring four bidirectional channels, the PCA9504A supports voltage translation between 1.2V, 1.8V, 2.5V, 3.3V, and 5V logic levels, making it suitable for a wide range of applications, including embedded systems, industrial controls, and consumer electronics. Its automatic direction sensing eliminates the need for additional control signals, simplifying system design.  

The PCA9504A incorporates built-in pull-up resistors, reducing external component count and board space requirements. It also offers robust ESD protection, enhancing system reliability in harsh environments. With low standby current consumption, this IC is well-suited for power-sensitive applications.  

Compatible with I²C Fast-mode Plus (up to 1 MHz) and SMBus standards, the PCA9504A ensures high-speed data transmission while maintaining signal integrity. Its compact package options, such as TSSOP and HVQFN, make it an efficient choice for space-constrained designs.  

Engineers value the PCA9504A for its ease of integration, reliability, and ability to bridge voltage gaps in multi-voltage I²C systems.

Application Scenarios & Design Considerations

Glue chip 4

Alternative Part Number

  • PCF8574AP --: I2C 8-bit I/O expander with similar function and pinout, widely available and often used as a drop-in replacement for PCA9504A.
  • TCA9554APWR --: I2C/SMBus 8-bit I/O expander with interrupt output, functionally compatible and a common alternative in the same application space.
  • MAX7311AUG+ --: 16-bit I2C I/O expander offering comparable expander functionality; suitable when more I/O or a different vendor is acceptable.
  • PCF8574AP --: I2C 8-bit I/O expander with interrupt output, functionally similar to the PCA9504A and widely available from the same original Philips/NXP lineage.
  • PCF8574AT --: Same PCF8574 I/O expander family in a different package option, offering a drop-in style replacement for PCA9504A applications.
  • TCA9554APWR --: Pin-compatible I2C/SMBus 8-bit I/O expander with interrupt, a common cross-vendor alternative when the PCA9504A is unavailable.

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