| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
15,760 pcs
|
15760 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
125 pcs
|
125 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The PCF8574TS/3,118 from NXP Semiconductors is a general-purpose remote I/O expansion device that utilizes a two-wire bidirectional I2C-bus interface. It provides eight quasi-bidirectional ports that can function as inputs or outputs, making it suitable for monitoring inputs or activating devices like LEDs.
Key electrical specifications include an operating supply voltage range of 2.5 V to 6 V and a 100 kHz I2C-bus interface speed. The device features an active LOW open-drain interrupt output, which can signal the microcontroller when an input state changes, reducing the need for constant polling. It also includes Power-On Reset (POR) functionality, initializing the I/Os as inputs with a weak internal pull-up.
This I/O expander is available in a 20-SSOP package, designed for surface mounting. The latched output ports can directly drive LEDs, and the device offers a total package sink capability of 80 mA. Its low standby current consumption of 2.5 µA typical makes it suitable for mobile applications.
Applications for the PCF8574TS/3,118 include LED signs and displays, keypads, industrial control, and mobile devices, offering flexible I/O expansion for various embedded systems.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.15 | $1.15 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The PCF8574TS/3,118 operates between 2.5 V and 6 V.
The PCF8574TS/3,118 is available in a 20-SSOP package.
The operating temperature range is -40°C to +85°C.
Yes, it features an active LOW open-drain interrupt output.
The I2C-bus interface speed is 100 kHz.