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PCA9553 Datasheet (PDF) - NXP Semiconductors

PCA9553 Datasheet PDF - NXP Semiconductors
Part # PCA9553
Download  PCA9553 Download

File Size   155.25 Kbytes
Page   26 Pages
Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors
Description 4-bit I2C-bus LED driver with programmable blink rates

PCA9553 Datasheet (PDF)

Go To PDF Page Download Datasheet
PCA9553 Datasheet PDF - NXP Semiconductors

Part # PCA9553
Download  PCA9553 Click to download

File Size   155.25 Kbytes
Page   26 Pages
Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors
Description 4-bit I2C-bus LED driver with programmable blink rates

PCA9553 Datasheet (HTML) - NXP Semiconductors

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PCA9553 Product details

General description
The PCA9553 LED blinker blinks LEDs in I2C-bus and SMBus applications where it is necessary to limit bus traffic or free up the I2C-bus masters (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 master 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 masters timers. The PCA9553 LED blinker instead requires only the initial set-up command to program BLINK RATE 1 and BLINK RATE 2 (i.e., the frequency and duty cycle). From then on, only one command from the bus master is required to turn each individual open-drain output ON, OFF, or to cycle at BLINK RATE 1 or BLINK RATE 2. Maximum output sink current is 25 mA per bit and 100 mA per package.

Features
■ 4 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
■ 4 open-drain outputs directly drive LEDs to 25 mA
■ Controlled edge rates to minimize ground bounce
■ No glitch on power-up
■ Supports hot insertion
■ Low standby current
■ Operating power supply voltage range of 2.3 V to 5.5 V
■ 0 Hz to 400 kHz clock frequency
■ ESD protection exceeds 2000 V HBM per JESD22-A114, 150 V MM per
   JESD22-A115 and 1000 V CDM per JESD22-C101
■ Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
■ Packages offered: SO8, TSSOP8 (MSOP8), HVSON8




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About NXP Semiconductors


NXP Semiconductors is a publicly traded multinational company that designs, develops, and manufactures a wide range of semiconductors and integrated circuits for various applications, including automotive, industrial, communications, and consumer markets.

The company was founded in 2006 and is headquartered in Eindhoven, Netherlands.

NXP offers a broad portfolio of products, including microcontrollers, microprocessors, secure authentication ICs, power management ICs, RF and microwave components, and sensor solutions, among others.

The company's products are designed to be energy efficient, secure, and reliable, and are used in a variety of applications, including automotive systems, industrial automation and control, smart homes and buildings, and connected devices.

NXP is dedicated to innovation and customer satisfaction, and is committed to providing its customers with the best semiconductor solutions to meet their needs.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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