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15 pcs
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15 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The PCA9555APW,118 from NXP Semiconductors is a low-voltage, 16-bit General Purpose Input/Output (GPIO) expander designed for I2C-bus/SMBus applications. It provides a flexible solution for systems requiring additional I/Os, such as ACPI power switches, sensors, push buttons, and LED control.
This device features a wide operating power supply voltage range of 1.65 V to 5.5 V, allowing it to interface with modern microprocessors and microcontrollers. It supports a 400 kHz Fast-mode I2C-bus interface and includes an open-drain active LOW interrupt output. The PCA9555A contains register sets for configuration, input, output, and polarity inversion.
Key electrical characteristics include low standby current consumption, Schmitt-trigger action on SCL and SDA inputs for noise immunity, and 5 V tolerant I/Os. The output pins have 25 mA sink capabilities for directly driving LEDs. The device incorporates an internal power-on reset and initializes with all channels configured as inputs with weak pull-up resistors.
The PCA9555APW,118 is supplied in a 24-TSSOP (0.173", 4.40mm Width) surface mount package. Its design includes weak pull-up resistors on all input/output pins to minimize external component count. Three hardware pins (A0, A1, A2) allow for I2C-bus address selection, enabling up to eight devices to share the same bus.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.15 | $1.15 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The PCA9555APW,118 operates with a supply voltage range of 1.65 V to 5.5 V.
The PCA9555APW,118 is supplied in a 24-TSSOP package.
The operating temperature range for the PCA9555APW,118 is -40°C to 85°C.
The PCA9555APW,118 is RoHS3 Compliant.
The Moisture Sensitivity Level (MSL) for the PCA9555APW,118 is 1 Unlimited.
The REACH status for the PCA9555APW,118 is REACH Unaffected.
The PCA9555APW,118 supports a maximum clock frequency of 400 kHz.