NXP | PCA9553DP/01,118

The PCA9553DP/01,118 is part of PCA9553 Series LED blinker blinks LEDs in I2C-bus and SMBus applications where it is necessary to limit bus traffic or free up the I2C-bus master's (MCU, MPU, DSP, chip set, etc.) timer. Temprature rages from -40 °C to +85 °C and avialable in the TSSOP-8 Package

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

Features:

• 4 LED drivers (on, off, flashing at a programmable rate)
• 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
• 2 selectable, fully programmable blink rates (frequency and duty cycle) between 0.172 Hz and 44 Hz (5.82 seconds and 0.023 seconds)