74HC240N,652

Overview

The NXP USA Inc. 74HC240N,652 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. The device includes two output enable inputs (1OE and 2OE), each controlling four outputs. Inputs feature clamp diodes for interfacing with voltages exceeding VCC. It complies with JEDEC standards JESD8C and JESD7A. ESD protection exceeds 2000 V (HBM) and 1000 V (CDM). Latch-up performance exceeds 100 mA per JESD 78 Class II Level B.

Feature Summary

• Provides bus driver capability with high noise immunity and CMOS low power dissipation.
• Features dual output enables allowing configuration as two 4-bit buffers or one 8-bit buffer.
• Includes input clamp diodes enabling direct interface to voltages higher than the supply voltage.

Applications

• Bus-oriented systems requiring signal buffering
• Clock drivers and buffer circuits
• Memory module data line drivers

Procurement Notes

Verify the specific suffix '652' against current Nexperia ordering information to confirm package type and tape-and-reel specifications. Confirm that the component meets the required temperature range and logic family compatibility for your design. Check for any recent lifecycle status updates regarding obsolescence or alternative package availability.

Selection Notes

Select this component when an octal inverting buffer with 3-state control is required. Ensure the system voltage falls within the 2.0 V to 6.0 V operating range. Verify that the HC logic family input levels are compatible with the driving source. Consider the SO20 package dimensions if board space is constrained.

Part Context

This part belongs to the 74HC/HCT240 series of octal buffers and line drivers. It is pin-compatible with low power Schottky TTL (LSTTL) devices. The series is designed for high-speed Si-gate CMOS technology and complies with JEDEC standard no. 7A. It serves as a general-purpose logic component for digital signal processing applications.

Replacement Considerations

Check for equivalent parts such as 74HC240 from other manufacturers ensuring identical pinout and electrical characteristics. Verify if 74HCT240 variants are suitable if TTL-level input compatibility is specifically required instead of CMOS levels.