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10 pcs
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10 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The Texas Instruments PCF8574AN is an 8-bit general-purpose remote I/O expander that communicates via the I2C interface. It is designed for operation with microcontrollers and supports a voltage range of 2.5V to 6V. The device features an 8-bit quasi-bidirectional I/O port (P0–P7) that can function as either input or output without requiring a data-direction control signal.
Key electrical characteristics include an operating temperature range of -40°C to 85°C and a maximum clock frequency of 100 kHz. The PCF8574AN offers an interrupt output feature and operates with a supply current of 1mA, with outputs capable of sourcing/sinking 25mA. The outputs are latched and provide high-current drive capability, suitable for directly driving LEDs.
This I/O expander is available in a 16-PDIP through-hole package. Its design facilitates easy integration into systems requiring additional I/O pins, making it compatible with most microcontroller families. The low standby current consumption and latched outputs with high-current drive capability are notable features for embedded system design.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.68 | $1.68 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The PCF8574AN operates from 2.5V to 6V.
The PCF8574AN is available in a 16-PDIP package.
The PCF8574AN operates between -40°C and 85°C.
Yes, the PCF8574AN features an interrupt output.
The maximum clock frequency for the PCF8574AN is 100 kHz.