PCA9531PW,118 datasheet by NXP Semiconductors

Description 8-bit I2C-bus LED dimmer - # of Addresses: 8 ; I2C-bus: 400 kHz; Max Sink Current per bit: 25 mA; Max Sink Current, per package: 100 mA; Number of bits: 8 ; Operating temperature: -40~85 Cel; Operating voltage: 2.3~5.5 VDC; PWMs: 2 (160 Hz to 1.6 sec) ; Reset input pin: yes; Package: SOT403-1 (TSSOP16); Container: Reel Pack, SMD, 13"
Datasheet Type Original
RoHS Yes
Lifecycle Active
HTS Code 8542.39.00.01
Schedule B 8542.39.00.00
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PCA9531PW,118 datasheet preview

The PCA9531PW,118 can support I2C bus frequencies up to 400 kHz.
To configure the PCA9531PW,118 to operate in input mode, set the corresponding bit in the configuration register (register 0x06) to '1'. This will configure the pin as an input.
The PCA9531PW,118 can sink or source up to 25 mA per pin.
The PCA9531PW,118 can be reset by pulling the RESET pin low for at least 1 ms. This will reset the device to its default state.
The internal pull-up resistors on the PCA9531PW,118 are used to pull the I2C bus lines (SCL and SDA) high when the device is not actively driving them. This helps to prevent bus contention and ensures reliable communication.

PCA9531PW,118 datasheet preview Download Datasheet