| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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7,000 pcs
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7000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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3,000 pcs
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3000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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2,500 pcs
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2500 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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495 pcs
|
495 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The PCF8574T/3,518 is a general-purpose remote I/O expansion device from NXP Semiconductors, utilizing a two-wire bidirectional I2C-bus interface. It features eight quasi-bidirectional ports that can function as inputs or outputs, making it suitable for applications like LED signs, keypads, and industrial control.
This I/O expander operates with a supply voltage range of 2.5V to 6V and supports a 100 kHz I2C-bus interface. It includes an active LOW open-drain interrupt output, which signals the microcontroller when an input state changes, eliminating the need for continuous polling. The device has a low standby current of 2.5 µA typical and latched output ports that can directly drive LEDs.
Packaged in a 16-SOIC surface mount configuration, the PCF8574T/3,518 is designed for operation within a temperature range of -40°C to 85°C. Its features include Power-On Reset (POR) initialization, where I/Os default to inputs with a weak internal pull-up current source.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.15 | $1.15 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The PCF8574T/3,518 operates from a supply voltage of 2.5V to 6V.
This I/O expander supports a 100 kHz I2C-bus interface.
Yes, it features an active LOW open-drain interrupt output.
The operating temperature range is -40°C to 85°C.
The PCF8574T/3,518 is supplied in a 16-SOIC package.