FXL4T245BQX

Overview

The FXL4T245BQX is a low-voltage dual-supply 4-bit signal translator manufactured by onsemi. It supports bidirectional voltage translation between logic levels ranging from 1.1V to 3.6V. The device features configurable voltage supplies and signal levels with three-state outputs. It operates within an ambient temperature range of -40°C to +85°C and is housed in a 16-terminal DQFN package measuring 2.5mm x 3.5mm.

Feature Summary

• Configurable bi-directional interface supporting any two voltage levels between 1.1V and 3.6V
• Non-preferential power-up sequencing allowing either VCCA or VCCB to power up first
• Outputs remain in three-state until the active VCC level is reached
• Power-off protection prevents current leakage during partial power-down states

Applications

• Bi-directional voltage translation between different logic families
• Interfacing low-voltage microcontrollers with higher-voltage peripherals
• Portable electronic devices requiring flexible voltage domain communication

Procurement Notes

Verify the exact suffix against official onsemi documentation, as 'FXL4T245BQX' may differ from the verified 'FXL4TD245BQX'. Confirm RoHS compliance status and ESD ratings via the manufacturer datasheet. Ensure the package type matches the required 16-terminal DQFN form factor for your PCB layout.

Selection Notes

Select this component when designing systems requiring flexible voltage translation between 1.1V and 3.6V domains. It is suitable for applications needing non-preferential power sequencing and robust ESD protection. Verify that the 4-bit width and bidirectional capability meet the specific data bus requirements of the target system.

Part Context

This part belongs to the FXL4TD245 series of low-voltage dual-supply translators. It is designed for applications where multiple voltage domains coexist, such as mixed-signal systems. The device simplifies interface design by eliminating the need for external level-shifting components.

Replacement Considerations

FXL4TD245BQX