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NXP Semiconductors 74HCT240D-Q100,118 — Logic ICs
NXP Semiconductors

74HCT240D-Q100,118 Buffer Inverting 3-State 20-SOIC

MPN74HCT240D-Q100,118
End of Life

Nexperia 74HCT240D-Q100,118, Automotive AEC-Q100 74HCT series, Buffer Inverting with 3-State outputs, 4.5V to 5.5V supply, -40°C to 125°C, 20-SOIC (0.295", 7.50mm Width), Surface Mount.

$0.23Ref. price · indicative, final on quote
74HCT240D-Q100,118 datasheet
Packaging20-SOIC (0.295", 7.50mm Width)
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MOQ1 pcs
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Specifications

74HCT240D-Q100,118 Technical Specifications
ParameterValue
SeriesAutomotive, AEC-Q100, 74HCT
Logic typeBuffer, Inverting
Output type3-State
Mounting typeSurface Mount
Voltage4.5V ~ 5.5V
Current - output high, low6mA, 6mA
Operating temperature-40°C ~ 125°C (TA)
PackageBulk
Case20-SOIC (0.295\", 7.50mm Width)
Number of elements2
Number of bits per element4

Product details

Automotive-grade octal buffer with inverted 3-state outputs

The 74HCT240D-Q100,118: Each of the two 4-bit elements provides inverted buffering with independent output-enable controls, and the 3-state outputs allow bus-oriented designs where multiple drivers share a common line. The 6mA sink and source capability at both high and low output levels is typical for HCT logic and interfaces cleanly with standard CMOS or TTL inputs on the same 5V rail.

Package and mounting — wide-body SOIC for 5V bus buffering

The wide-body footprint is common for octal buffer/driver ICs and provides adequate creepage for 5V rails in automotive environments. The 20-SO package code confirms the standard JEDEC outline; no exposed pad or thermal slug is present, so power dissipation is limited to the package's inherent capability — stay within the 6mA per-output limit for continuous operation.

Frequently asked questions

Is 74HCT240D-Q100 AEC-Q100 certified?

Yes, the Q100 suffix in the order code indicates AEC-Q100 qualification, covering the stress test requirements for automotive-grade integrated circuits.

Can 74HCT240D-Q100 be used as a replacement for 74HCT240?

Yes. The 74HCT240D-Q100,118 is pin-compatible and functionally identical to the standard 74HCT240, with the same logic function, supply range, and output drive. The Q100 variant adds automotive qualification and extended temperature range, so it can replace the base part in any design, though it may carry a cost premium.