FXMA2104UMX

Translators, Level Shifters Overview

The FXMA2104UMX is a dual-supply, 4-bit voltage translator designed for open-drain applications. It supports bi-directional translation between any two voltage levels ranging from 1.65V to 5.5V on both VCCA and VCCB ports. The device features open-drain inputs and outputs with configurable direction control that does not require external GPIO resources when OE is tied to VCCA. It accommodates standard-mode and fast-mode I2C-Bus devices, supporting clock stretching and multi-master arbitration. Packaged in a 12-lead ultrathin MLP measuring 1.8mm x 1.8mm, it operates within a temperature range of -40°C to +85°C.

Translators, Level Shifters Feature Summary

• Bi-directional interface capability between any two voltage levels from 1.65V to 5.5V without requiring direction control signals.
• Supports I2C bus isolation by automatically forcing outputs to 3-state if either power supply transitions to ground.
• Features non-preferential power-up sequencing, allowing either VCC supply to be powered up first.
• Includes dynamic drivers with time-out capabilities to accelerate signal edges for high-performance level shifting.

Translators, Level Shifters Applications

• I2C buffer or repeater applications
• I2C-bus isolation
• Voltage translation between different logic domains

Translators, Level Shifters Procurement Notes

Verify the specific package type and marking code against the manufacturer's current ordering information. Confirm RoHS compliance status and material composition declarations prior to integration. Ensure the design accounts for the required external pull-up resistors necessary for open-drain operation. Validate operating conditions against absolute maximum ratings to prevent device damage.

Translators, Level Shifters Selection Notes

Select this component for designs requiring bi-directional voltage translation across a wide range of supply voltages. It is suitable for systems needing I2C bus isolation or buffering where automatic direction sensing is beneficial. Consider the 12-lead ultrathin MLP package for space-constrained layouts. Ensure application requirements align with the open-drain output topology and the need for external pull-up components.

Translators, Level Shifters Part Context

The FXMA2104 belongs to the FXMA series of dual-supply voltage translators manufactured by onsemi. It is part of a family of high-performance configurable translators intended for open-drain interfaces. The device integrates internal power-down control circuits and dynamic drivers to facilitate efficient signal transfer between disparate voltage domains in digital communication systems.

Translators, Level Shifters Replacement Considerations

FXMA2104UMXTR

Translators, Level Shifters FAQ

How does the FXMA2104 handle power-up sequencing?

The device supports non-preferential power-up, meaning either VCCA or VCCB can be powered up first. Internal power-down control circuits ensure outputs enter a 3-state if either supply drops to ground.

What is the function of the OE pin?

The Output Enable (OE) pin controls the device state. Driving OE LOW forces all A and B port pins into a 3-state. Tying OE to VCCA saves GPIO resources while maintaining normal operation.

Does the FXMA2104 support I2C clock stretching?

Yes, the device fully supports I2C clock stretching and multi-master arbitration due to its auto-direction-sense capability and hybrid architecture using N-pass gates.