FXMA2102L8X

Translators, Level Shifters Overview

The FXMA2102L8X is a dual-supply, 2-bit voltage translator and buffer designed for I2C applications. It supports bi-directional translation between any two voltage levels from 1.65 V to 5.5 V on both A and B ports. The device features open-drain inputs/outputs with automatic direction sensing, eliminating the need for external direction control. It accommodates standard-mode and fast-mode I2C devices, supporting clock stretching and multi-master arbitration. Packaged in an 8-terminal leadless MicroPak (1.6 mm x 1.6 mm), it operates over a temperature range of -40°C to +85°C.

Translators, Level Shifters Feature Summary

• Bi-directional interface capability between any two voltage levels within the 1.65 V to 5.5 V range
• Automatic direction sense functionality that removes the requirement for system GPIO resources
• Supports I2C bus isolation by transitioning outputs to 3-state when either power supply is removed
• Non-preferential power-up sequencing allowing either VCC supply to be powered first

Translators, Level Shifters Applications

• Voltage translation between I2C-bus compliant masters and slaves
• I2C bus buffering and repeating to extend segment length
• I2C bus isolation to protect active segments during bus clear conditions or power loss

Translators, Level Shifters Procurement Notes

Verify the specific package type matches the design requirements, as the FXMA2102 series includes both MicroPak and Ultrathin MLP variants. Confirm the ordering suffix corresponds to the desired tape and reel quantity. Ensure the OE pin configuration aligns with the intended power-up sequence and GPIO availability. Check for RoHS compliance status if required by project specifications.

Translators, Level Shifters Selection Notes

Select this component when bi-directional level shifting is required for I2C interfaces without dedicated control pins. It is suitable for systems where either power rail may energize first. Consider the 8-lead MicroPak package for compact layouts requiring a 1.6 mm x 1.6 mm footprint. Ensure external pull-up resistors are sized appropriately for the target bus capacitance and speed mode.

Translators, Level Shifters Part Context

The FXMA2102 belongs to onsemi's FXMA logic family of voltage translators. It is specifically engineered for high-performance level shifting in I2C environments. The L8X suffix denotes the 8-lead MicroPak package variant. This device integrates dynamic drivers to accelerate signal edges, improving performance over traditional passive translators.

Translators, Level Shifters Replacement Considerations

FXMA2102UMX