| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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51 pcs
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51 pcs | On Request | 1 | On Request | On Request | 06+ | On Request | On Request |
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The PCF8574AT/3 is an 8-bit remote I/O expander from NXP Semiconductors that utilizes a two-wire bidirectional I2C-bus interface. It features eight quasi-bidirectional ports that can be independently assigned as inputs or outputs, making it suitable for applications like driving LEDs or monitoring keypads.
This device operates with a supply voltage range of 2.5 V to 6 V and supports a 100 kHz I2C-bus interface. It includes an active LOW open-drain interrupt output that can signal a microcontroller when an input state changes, reducing the need for continuous polling. The latched output ports can directly drive LEDs, with a total package sink capability of 80 mA. The device consumes a low standby current of 2.5 µA typical.
Available in DIP16, SO16, and SSOP20 packages, the PCF8574AT/3 is designed for operation within a temperature range of -40 °C to +85 °C. Its features make it suitable for various applications including LED signs, industrial control, and mobile devices.
The operating supply voltage range is 2.5V to 6V.
The I2C-bus interface speed is 100 kHz (Standard-mode).
The operating temperature range is -40°C to +85°C.
The PCF8574AT/3 is available in DIP16, SO16, and SSOP20 packages.
The total package sink capability is 80 mA.
The typical standby current is 2.5 µA.