Shenzhen Xinluda Information Technology Co., Ltd Electronic Parts
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The XL8574T is a remote 8-bit I/O expander from Shenzhen Xinluda Information Technology Co., Ltd. It provides general-purpose remote I/O expansion to a host microcontroller through the standard two-wire bidirectional I2C-bus interface (SCL/SDA), making it a drop-in functional alternative to the widely used PCF8574 family. Each of the eight quasi-bidirectional ports can be independently assigned as an input to monitor a keypad or status line, or as an output to drive indicator devices such as LEDs.
An active-low open-drain interrupt output lets the device flag a change of state on any input pin to the host without the controller having to continuously poll the bus. Three hardware address pins allow up to eight XL8574T devices to share a single I2C bus, supporting as many as 64 I/O lines on one two-wire interface.
The XL8574T is an Asian-brand I/O expander with limited authorized-distributor coverage in North America and Europe, which can make it difficult to source in production quantities through mainstream channels. Pacific Component Xchange is an independent distributor specializing in hard-to-find and obsolete power-management ICs and interface components. We help engineering and procurement teams secure parts like the XL8574T when standard distribution falls short.
Every order is backed by our authenticity and quality-assurance process, and we ship worldwide to keep your line running. Request a quote (RFQ) today and our sourcing specialists will confirm availability, lead time, and pricing for the quantity you need.
The XL8574T is a remote 8-bit I/O expander from Xinluda. It adds eight quasi-bidirectional general-purpose I/O ports to a host system over a two-wire I2C bus and includes an active-low interrupt output. It is functionally compatible with the popular PCF8574 family.
The XL8574T is supplied in a 16-pin SOP-16 surface-mount package.
Per distributor parametric data for this part, the XL8574T operates over a supply voltage range of 2.3 V to 5.5 V.
The XL8574T has three hardware address pins providing eight programmable slave addresses, so up to eight devices can share a single I2C bus for as many as 64 I/O lines.
Yes. The XL8574T is an I2C-bus to parallel-port expander that is functionally compatible with the industry-standard PCF8574 8-bit I/O expander, offering eight quasi-bidirectional ports and an interrupt output.
Yes. The XL8574T is offered by Pacific Component Xchange as a request-for-quote (RFQ) item. Contact our sourcing team and we will confirm current availability, lead time, and pricing for your required quantity.
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