74HC540DB,112

Overview

The Nexperia 74HC540DB,112 is an octal buffer and line driver featuring inverting outputs with three-state capability. It operates within a supply voltage range of 2.0 V to 6.0 V and utilizes a 20-lead SSOP package (SOT339-1). The device incorporates two active-low output enable inputs (OE1 and OE2) to control the high-impedance OFF-state. Inputs include clamp diodes for interfacing with voltages exceeding VCC. It complies with JEDEC standards JESD8C and JESD7A.

Feature Summary

• Features two independent active-low output enables for flexible bus management
• Provides high noise immunity and low power CMOS dissipation
• Includes input clamp diodes to support current limiting resistors
• Offers robust latch-up performance exceeding specified JEDEC Class II Level B limits

Applications

• Bus-oriented memory and signal driving applications
• Clock drivers and buffered clocking systems
• Multiplexer and demultiplexer enabling circuits
• Transceiver and transceiver bus control logic

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to confirm package type and temperature range. Confirm that the component meets all required environmental standards and RoHS compliance specifications before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring eight-channel inverting buffering with tri-state isolation. Ensure the operating voltage aligns with the 2.0 V to 6.0 V range and verify that the SSOP-20 footprint matches the target PCB layout constraints.

Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices manufactured by Nexperia. It serves as a standard solution for digital signal routing where inversion and bus isolation are necessary. The DB suffix specifically denotes the SSOP20 plastic shrink small outline package variant.

Replacement Considerations

Consult official Nexperia documentation for verified substitute part numbers. Cross-reference pinouts and electrical characteristics carefully to ensure functional compatibility.