PCA9505
PCA9505 is 40-bit I2C-bus I/O port manufactured by NXP Semiconductors.
- Part of the PCA9506 comparator family.
- Part of the PCA9506 comparator family.
PCA9505_9506
40-bit I2C-bus I/O port with RESET, OE and INT
Rev. 5
- 30 September 2021
Product data sheet
1 General description
The PCA9505/PCA9506 provide 40-bit parallel input/output (I/O) port expansion for I2Cbus applications organized in 5 banks of 8 I/Os. At 5 V supply voltage, the outputs are capable of sourcing 10 mA and sinking 15 mA with a total package load of 600 mA to allow direct driving of 40 LEDs. Any of the 40 I/O ports can be configured as an input or output. Output ports are totem-pole and their logic state changes at the Acknowledge (bank change). The PCA9505 is identical to the PCA9506 except that it includes 100 kΩ internal pull-up resistors on all the I/Os. The...
