PCA9550 - 2-bit I2C LED driver

Product Overview

NXP

PCA9550 2-bit I2C LED driver by NXP - Datasheet Preview — Datasheet preview – PCA9550

Datasheet Details

Part number	PCA9550
Manufacturer	NXP
File Size	150.21 KB
Description	2-bit I2C LED driver
Datasheet	PCA9550 Datasheet
Additional preview pages of the PCA9550 datasheet.

Product details

Description

The PCA9550 LED blinker blinks LEDs in I2C-bus and SMBus applications where it is necessary to limit bus trafﬁc or free up the I2C master's (MCU, MPU, DSP, chip set, etc.) timer.

Features

I 2 LED drivers (on, off, ﬂashing at a programmable rate) I 2 selectable, fully programmable blink rates (frequency and duty cycle) between 0.172 Hz and 44 Hz (5.82 seconds and 0.023 second) I Input/output not used as LED drivers can be used as regular GPIOs I Internal oscillator requires no external components I I2C-bus interface logic compatible with SMBus I Internal power-on reset I Noise ﬁlter on SCL/SDA inputs I Active LOW reset input I 2 open-drain outputs directly drive LEDs to 25 mA I Co.

📁 Similar Datasheet

PCA9554 - Remote 8-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)
PCA9511A - Hot swappable I2C-bus and SMBus bus buffer (NXP Semiconductors)
PCA9513 - Hot swappable I2C and SMBus bus buffer (Philips)

Other Datasheets by NXP

PCA9551 - 8-bit I2C LED driver
PCA9552 - 16-bit I2C LED driver
PCA9553 - 4-bit I2C LED driver
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

Published: Mar 22, 2005 |