74HC240DB,112

Overview

The Nexperia 74HC240DB,112 is an octal buffer and line driver featuring inverting 3-state outputs. It operates within a supply voltage range of 2.0 V to 6.0 V and supports ambient temperatures from -40 °C to +125 °C. The device provides two independent output enable inputs (1OE and 2OE), each controlling four outputs. Propagation delay ranges from 9 ns to 30 ns depending on voltage. Output drive capability reaches ±7.8 mA at 6.0 V.

Feature Summary

• Features inverting 3-state outputs controlled by two separate enable lines
• Includes input clamp diodes for interfacing with voltages exceeding VCC
• Provides high noise immunity and low power CMOS dissipation
• ESD protection exceeds 2000 V per HBM and 1000 V per CDM standards

Applications

• Bus-oriented communications systems
• Clock drivers requiring high capacitive loading
• Memory module address and data bus buffering
• Line drivers for signal transmission over long traces

Procurement Notes

Verify the specific ordering suffix against current Nexperia documentation to confirm package type and temperature grade. Confirm RoHS compliance status as specifications may evolve. Check official distributor channels for availability as production status can change without notice. Ensure design-in compatibility with existing system voltage levels before procurement.

Selection Notes

Select this component when an octal inverting buffer with tri-state control is required. Verify that the 2.0 V to 6.0 V operating range matches the target system supply. Consider the SSOP-20 package dimensions for PCB layout constraints. Ensure the propagation delay characteristics meet the timing requirements of the specific application interface.

Part Context

This part belongs to the 74HC family of high-speed CMOS logic devices manufactured by Nexperia. It is functionally compatible with other industry-standard octal buffers but offers specific Nexperia reliability features. The DB suffix indicates the SSOP-20 plastic small outline package variant designed for surface-mount assembly applications.

Replacement Considerations

Check for 74HC240PW variants if TSSOP packaging is preferred. Verify functional equivalence with other octal 3-state inverters from different manufacturers if sourcing alternatives.