Skip to main content
NXP Semiconductors 74HC240BQ/C4115 — Logic ICs
NXP Semiconductors

74HC240BQ/C4115 Buffer, Inverting 3-State, 2V-6V, 20-DHVQFN

MPN74HC240BQ/C4115
End of Life

NXP 74HC240BQ/C4115, 74HC series, Buffer Inverting 3-State, 2V to 6V supply, -40°C to 125°C, 20-DHVQFN Exposed Pad, 7.8mA output drive.

$0.17Ref. price · indicative, final on quote
74HC240BQ/C4115 datasheet
Packaging20-VFQFN Exposed Pad
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

74HC240BQ/C4115 Technical Specifications
ParameterValue
Series74HC
Logic typeBuffer, Inverting
Output type3-State
Mounting typeSurface Mount
Voltage2V ~ 6V
Current - output high, low7.8mA, 7.8mA
Operating temperature-40°C ~ 125°C (TA)
PackageBulk
Case20-VFQFN Exposed Pad
Number of elements2
Number of bits per element4

Product details

Octal inverting buffer with 3-state — 74HC240 in a compact DHVQFN

The NXP 74HC240BQ/C4115 is an octal inverting buffer with 3-state outputs from the 74HC family, designed for bus-oriented applications requiring signal inversion and output disable capability. The two elements, each handling four bits, provide eight inverting channels with a balanced 7.8mA sink and source drive at both output states.

The wide temperature grade eliminates the need to derate or qualify a separate industrial-tier variant for mixed-temperature BOM lines.

20-DHVQFN with exposed pad — layout notes

The 0.5 mm pitch fine-pitch QFN calls for a controlled impedance PCB if the bus traces run longer than a few centimetres at 5V edge rates. The supplier device package is 20-DHVQFN (4.5x2.5).

Listed with an active product status, the 74HC240BQ carries no last-time-buy or end-of-life notice. For production BOMs that need a second-source hedge, the 74HC240 footprint is broadly second-sourced across multiple logic vendors — qualify an alternate now rather than single-source it.

Frequently asked questions

What is 74HC240BQ/C4115 used for?

It is an octal inverting buffer with 3-state outputs, used for bus isolation, signal inversion, and driving capacitive loads in digital systems. Typical applications include memory address buffers, data bus transceivers, and general-purpose line driving in 3.3V or 5V logic environments.