I/O Expander, 40 I2C, 400 kHz, 56-TSSOP
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The PCA9506DGG,518 is a 40-bit I/O expander manufactured by NXP Semiconductors. This device provides 40 parallel input/output lines controlled via an I2C-bus interface. It operates at an I2C clock frequency of up to 400 kHz and is supplied in a 56-TSSOP package.
This I/O expander is commonly used in systems requiring additional digital input/output capabilities beyond what is available on the main microcontroller or processor. It is suitable for a variety of control and monitoring tasks.