| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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64,571 pcs
|
64571 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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5,750 pcs
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5750 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
1,096 pcs
|
1096 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
133 pcs
|
133 pcs | On Request | 1 | On Request | On Request | 11+ | On Request | On Request |
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The Texas Instruments PCF8574DW is an 8-bit input/output (I/O) expander that utilizes the I2C interface for communication. This device is designed for 2.5V to 6V VCC operation, making it compatible with a wide range of microcontrollers. It provides general-purpose remote I/O expansion through the serial clock (SCL) and serial data (SDA) lines.
The PCF8574DW features an 8-bit quasi-bidirectional I/O port (P0–P7) with latched outputs capable of directly driving LEDs. Each I/O can function as either an input or an output without requiring a separate data-direction control signal. At power-on, the I/Os are set to a high state.
This I/O expander operates at a maximum clock frequency of 100 kHz and has an operating temperature range of -40°C to 85°C. It includes an interrupt output feature. The device is available in a 16-SOIC package and is designed for surface mount applications.
Key electrical characteristics include a voltage range of 2.5V to 6V and current ratings of 1mA and 25mA. The PCF8574DW is suitable for applications requiring additional I/O pins for microcontrollers, such as controlling LEDs or reading button inputs.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.17 | $1.17 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The PCF8574DW operates within a voltage range of 2.5V to 6V.
The PCF8574DW is packaged in a 16-SOIC surface-mount package.