74LV245ATPWJ

Overview

The 74LV245AT is an octal bus transceiver with 3-state outputs designed for a supply voltage range of 4.5 V to 5.5 V. It features TTL-compatible inputs and Schmitt-trigger action for tolerance of slow input transitions. The device includes IOFF circuitry for partial power-down mode operation, preventing backflow current when powered down. Direction control is managed via DIR and OE pins.

Feature Summary

• Supports mixed-mode voltage operation on all ports
• IOFF circuitry provides partial Power-down mode operation
• Direct interface with TTL levels

Applications

• Partial Power-down applications using IOFF
• Mixed-mode voltage operation interfaces
• TTL level translation from 3.3 V to 5 V

Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature range. Confirm that the application environment stays within the recommended operating conditions of 4.5 V to 5.5 V supply voltage. Ensure design safeguards are in place for ESD protection requirements as specified in the datasheet.

Selection Notes

Select this component for designs requiring an 8-bit bidirectional bus interface operating strictly between 4.5 V and 5.5 V. It is suitable for applications needing direct TTL compatibility and partial power-down capabilities. Verify that the TSSOP20 package fits the PCB layout constraints.

Part Context

This part belongs to the Nexperia 74LV logic family, specifically optimized for low-voltage applications but restricted here to the 4.5 V–5.5 V range. It serves as an octal transceiver variant within the broader 74LV series portfolio, distinct from other variants like the standard 74LV245 which may support wider voltage ranges.

Replacement Considerations

Check for 74LV245 equivalents if the wider voltage range (1.0 V–5.5 V) is acceptable. Verify pinout compatibility with TSSOP20 packages before substituting.