Datasheet4U Logo Datasheet4U.com

PCA9552 - 16-bit I2C LED driver

Description

The PCA9552 LED blinker blinks LEDs in I2C-bus and SMBus applications where it is necessary to limit bus traffic or free up the I2C-bus controller's (MCU, MPU, DSP, chip set, etc.) timer.

The uniqueness of this device is the internal oscillator with two programmable blink rates.

Features

  • 16 LED drivers (on, off, flashing at a programmable rate).
  • 2 selectable, fully programmable blink rates (frequency and duty cycle) between 0.172 Hz and 44 Hz (5.82 seconds and 0.023 seconds).
  • Input/outputs not used as LED drivers can be used as regular GPIOs.
  • Internal oscillator requires no external components.
  • I2C-bus interface logic compatible with SMBus.
  • Internal power-on reset.
  • Noise filter on SCL/SDA inputs.
  • Active LOW.

📥 Download Datasheet

Datasheet preview – PCA9552

Datasheet Details

Part number PCA9552
Manufacturer NXP
File Size 437.36 KB
Description 16-bit I2C LED driver
Datasheet download datasheet PCA9552 Datasheet
Additional preview pages of the PCA9552 datasheet.

📁 Similar Datasheet

  • PCA9554 - Remote 8-Bit I2C AND SMBus I/O Expander (Texas Instruments)
  • PCA9554 - 8-bit I2C and SMBus I/O Port (ON Semiconductor)
  • PCA9554A - Remote 8-Bit I2C and SMBus I/O Expander (Texas Instruments)
  • PCA9555 - Low-voltage 16-bit I2C-bus I/O port (nexperia)
  • PCA9555 - Remote 16-bit I2C and SMBus I/O Expander (Texas Instruments)
  • PCA9557 - Remote 8-Bit I2C and SMBus Low-Power I/O Expander (Texas Instruments)
  • PCA9502 - 8-bit I/O expander (NXP Semiconductors)
  • PCA9506 - 40-bit I2C-bus I/O port (NXP Semiconductors)
  • PCA9507 - 2-wire serial bus extender (NXP Semiconductors)
  • PCA9510A - Hot swappable I2C-bus and SMBus bus buffer (NXP Semiconductors)
Other Datasheets by NXP
  • PCA9550 - 2-bit I2C LED driver
  • PCA9551 - 8-bit I2C LED driver
  • PCA9553 - 4-bit I2C LED driver
  • PCA9554 - 8-bit I2C and SMBus I/O port
  • PCA9554A - 8-bit I2C and SMBus I/O port
  • PCA9555 - 16-bit I2C-bus and SMBus I/O port
  • PCA9555A - Low-voltage 16-bit I2C-bus I/O port
  • PCA9556 - Octal SMBus Registered Interface

Full PDF Text Transcription

Click to expand full text
PCA9552 16-bit I2C-bus LED driver with programmable blink rates Rev. 5.1 — 25 May 2023 Product data sheet 1 General description The PCA9552 LED blinker blinks LEDs in I2C-bus and SMBus applications where it is necessary to limit bus traffic or free up the I2C-bus controller's (MCU, MPU, DSP, chip set, etc.) timer. The uniqueness of this device is the internal oscillator with two programmable blink rates. To blink LEDs using normal I/O expanders like the PCF8574 or PCA9554, the bus controller must send repeated commands to turn the LED on and off. This greatly increases the amount of traffic on the I2C-bus and uses up one of the controller's timers.
Published: |