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Product Detailed Parameters
- Description：IC XPNDR 400KHZ I2C 16UMLP
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of I/O：8
- Interface：I2C
- Interrupt Output：Yes
- Features：POR
- Output Type：Open Drain
- Current - Output Source/Sink：6mA
- Clock Frequency：400 kHz
- Voltage - Supply：1.65V ~ 4V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：16-UFQFN
- Supplier Device Package：16-UMLP (1.8x2.6)
- Grade：-
- Qualification：-
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Overview
The FXL6408UMX is an I/O expander manufactured by onsemi, featuring eight channels and supporting the I2C interface with a clock frequency of 400 kHz. It operates within a supply voltage range of 1.65 V to 4 V and provides open-drain outputs capable of sourcing or sinking 6 mA. The component is housed in a 16-UMLP package measuring 1.8 mm by 2.6 mm with a height of 0.55 mm. It functions reliably across a temperature range of -40°C to 85°C and includes power-on reset (POR) functionality.
Feature Summary
- Provides eight general-purpose input/output channels for system expansion
- Supports standard I2C communication protocol at up to 400 kHz
- Includes interrupt output capability for efficient event handling
- Integrates power-on reset (POR) circuitry for reliable initialization
Applications
- Portable devices requiring additional GPIO pins
- Embedded systems needing I2C bus expansion
- Consumer electronics with limited pin availability
Procurement Notes
Verify the specific ordering suffix against official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with existing I2C address configurations and voltage levels before integration. Confirm RoHS compliance status through manufacturer documentation if required for regulatory adherence.
Selection Notes
Select this component when eight I/O channels are needed with low-power operation and small footprint requirements. Verify that the host controller supports I2C communication at the desired speed. Consider the 1.65 V minimum supply voltage for battery-operated applications.
Part Context
This part belongs to the FXL6408 series of I/O expanders from onsemi. The series focuses on providing cost-effective solutions for expanding digital I/O capabilities in space-constrained designs. The UMLP package variant offers a compact form factor suitable for modern surface-mount assembly processes.
Replacement Considerations
Consult official cross-reference lists for verified substitutes. Ensure any replacement maintains identical I2C compatibility, voltage ranges, and package dimensions to avoid redesign efforts.
