| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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2,000 pcs
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2000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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This PCA9554APWR from Texas Instruments is an 8-bit I/O expander that facilitates remote I/O expansion via the I2C and SMBus interfaces. It supports a wide operating power-supply voltage range from 2.3 V to 5.5 V, with 5-V tolerant I/Os.
The device features an open-drain active-low interrupt output and three hardware address pins, allowing up to eight devices on the I2C/SMBus. It includes an Input/Output Configuration Register and a Polarity Inversion Register. At power-on, all I/Os are configured as inputs with a weak pullup to VCC, but can be configured as inputs or outputs by writing to the I/O configuration bits.
Key electrical characteristics include a 400-kHz Fast I2C Bus speed, output current source/sink capabilities of 10mA and 25mA, and a Push-Pull output type. The device is supplied in a 16-TSSOP package, suitable for surface mounting.
ESD protection exceeds JESD 22 standards, including 2000-V Human-Body Model, 200-V Machine Model, and 1000-V Charged-Device Model. Latch-up performance exceeds 100 mA per JESD 78, Class II.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.15 | $1.15 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating power-supply voltage range is 2.3 V to 5.5 V.
The PCA9554APWR is supplied in a 16-TSSOP package.
The operating temperature range is -40°C to 85°C.
Yes, it features an open-drain active-low interrupt output.
The device supports a 400-kHz Fast I2C Bus.