Description
PIN NUMBER 1 2 3 4 5 6 7 8 SYMBOL LED0 LED1 LED2 VSS LED3 SCL SDA VDD FUNCTION LED driver 0 LED driver 1 LED driver 2 Supply ground LED driver 3 Serial clock line Serial data line Supply voltage
Packages offered: SO8, TSSOP8 (MSOP8)
DESCRIPTION
The PCA9533 is a 4-bit I2C and SMBus I/O exp
Features
- 4 LED drivers (on, off, flashing at a programmable rate).
- 2 selectable, fully programmable blink rates (frequency and duty
cycle) between 0.591 Hz and 152 Hz (1.69 seconds and 6.58 milliseconds).
- 256 brightness steps.
- Input/outputs not used as LED drivers can be used as regular
GPIOs.
- Internal oscillator requires no external components.
- I2C interface logic compatible with SMBus.
- Internal power-on reset.
- Noise filter on S.
PCA9533 Datasheet
