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Texas Instruments SN74ABT240ANSR — Analog & Data Acquisition
Texas Instruments

SN74ABT240ANSR Texas Instruments Buffer Inverting, 32/64mA

MPNSN74ABT240ANSR
End of Life

Texas Instruments 74ABT series, SN74ABT240ANSR, Buffer, Inverting, 3-State, 2-Element, 4-Bit per Element, 32mA/64mA, 4.5V-5.5V, -40°C to 85°C, 20-SOIC, Surface Mount.

$1.16Ref. price · indicative, final on quote
SN74ABT240ANSR datasheet
Packaging20-SOIC (0.209", 5.30mm Width)
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.
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Specifications

SN74ABT240ANSR Technical Specifications
ParameterValue
Series74ABT
Logic typeBuffer, Inverting
Output type3-State
Mounting typeSurface Mount
Voltage4.5V ~ 5.5V
Current - output high, low32mA, 64mA
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case20-SOIC (0.209\", 5.30mm Width)
Number of elements2
Number of bits per element4

Product details

Inverting buffer for 5 V bus isolation

Each of the two elements handles four bits, with output drive rated at 32 mA source and 64 mA sink — enough to drive a heavily loaded backplane or a bank of LED indicators without external buffers.

The 32 mA source / 64 mA sink current rating is the headline selection parameter. On a 5 V backplane with multiple loads, the 64 mA sink handles the low-level current from a dozen TTL inputs or a long trace's capacitive discharge. If your system is mixed-voltage, you need a level-translating buffer like the 74LVTH series.

Frequently asked questions

Is SN74ABT240ANSR RoHS compliant?

Yes, it is ROHS3 compliant, meeting the current EU RoHS directive without exemptions.

Can SN74ABT240ANSR be used as a replacement for SN74ABT240ADW?

The SN74ABT240ADW is the same die in a different package (SOIC wide-body versus the narrow 20-SO of the ANSR suffix). The ANSR variant is a surface-mount 20-SOIC; verify the footprint matches your board layout before substituting.