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PCA9505

NXP
Part Number PCA9505
Manufacturer NXP
Description 40-bit I2C-bus I/O port
Published Feb 7, 2019
Detailed Description PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT Rev. 4 — 3 August 2010 Product data sheet 1. General descr...
Datasheet PDF File PCA9505 PDF File

PCA9505
PCA9505

Overview
PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT Rev.
4 — 3 August 2010 Product data sheet 1.
General description The PCA9505/PCA9506 provide 40-bit parallel input/output (I/O) port expansion for I2C-bus 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 PCA9506 does not include the internal pull-ups on the I/Os to reduce power consumption when used as outputs or when the input is driven by a push-pull driver.
The device can be configured to have each input port to be masked in order to prevent it from generating interrupts when its state changes and to...


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