FXLA104UM12X

Translators, Level Shifters Overview

The FXLA104UM12X is a low-voltage dual-supply 4-bit voltage translator manufactured by onsemi. It supports bi-directional translation between logic levels ranging from 1.1V to 3.6V, with ports A and B tracking respective supply voltages VCCA and VCCB. The device features configurable inputs and outputs, auto-direction sensing eliminating the need for control pins, and 3-state outputs when either supply is at ground. It operates within an ambient temperature range of -40°C to +85°C and achieves data rates up to 140 Mbps. The component is housed in a 12-terminal Quad UMLP package measuring 1.8mm x 1.8mm.

Translators, Level Shifters Feature Summary

• Bi-directional interface capability between two voltage levels without requiring external direction control pins
• Internal bus-hold circuits eliminate the need for external pull-up or pull-down resistors on data ports
• Non-preferential power-up sequence allows either VCCA or VCCB to be powered first while maintaining safe states
• Outputs automatically switch to 3-state condition if either supply voltage drops to ground level

Translators, Level Shifters Applications

• Cell phone systems
• Personal Digital Assistants (PDA)
• Digital camera interfaces
• Portable GPS devices

Translators, Level Shifters Procurement Notes

Verify that the specific ordering suffix UM12X corresponds to the 12-terminal Quad UMLP package configuration rather than the standard 16-terminal variant. Confirm compliance documentation availability for material composition requirements. Ensure application designs account for the recommended power-up and power-down sequences involving the /OE control pin to prevent bus contention during transitions.

Translators, Level Shifters Selection Notes

Select this component when designing systems requiring automatic bi-directional level shifting between dissimilar voltage domains such as 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. The absence of a direction control pin simplifies PCB layout and reduces pin count compared to manually controlled translators. Verify that the target application does not require external pull-up resistors, as the internal bus-hold feature handles static state maintenance.

Translators, Level Shifters Part Context

This part belongs to the FXLA104 series of low-voltage dual-supply voltage translators. The series includes variants with different package options, specifically the 16-terminal UMLP and the 12-terminal Quad UMLP. The FXLA104 family is designed for portable electronics where space constraints and low power consumption are critical design parameters.

Translators, Level Shifters Replacement Considerations

Consult official cross-reference tools for compatible alternatives from other manufacturers. Verify functional equivalence regarding voltage ranges, pin configurations, and electrical characteristics before substitution.