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Texas Instruments SN74HC21DR — Signal Isolation
Texas Instruments

SN74HC21DR TI AND Gate, 2V-6V Supply, 14-SOIC

MPNSN74HC21DR
End of Life

Texas Instruments SN74HC21DR, Series 74HC, AND Gate, 2 Circuits, 4 Inputs, 2V to 6V Supply, 5.2mA Output, 19ns @ 6V, 50pF, -40°C to 85°C, 14-SOIC Surface Mount.

$0.53Ref. price · indicative, final on quote
SN74HC21DR datasheet
Packaging14-SOIC (0.154", 3.90mm 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.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

SN74HC21DR Technical Specifications
ParameterValue
Series74HC
Logic typeAND Gate
Mounting typeSurface Mount
Voltage2V ~ 6V
Current - quiescent2 µA
Current - output high, low5.2mA, 5.2mA
Number of inputs4
Operating temperature-40°C ~ 85°C
PackageTape & Reel (TR); Cut Tape (CT)
Case14-SOIC (0.154\", 3.90mm Width)
Number of circuits2
Input logic level - low0.5V ~ 1.8V
Input logic level - high1.5V ~ 4.2V
Max propagation delay @ v, max CL19ns @ 6V, 50pF

Product details

Dual 4-input AND gate in 14-SOIC

The Texas Instruments SN74HC21DR is a dual 4-input AND gate from the 74HC family, packaged in a 14-SOIC surface-mount footprint. It operates from a 2V to 6V supply.

Active production — no lifecycle risk

The SN74HC21DR carries an Active product status with ROHS3 compliance. Sourcing is through independent distribution channels; availability and current pricing are confirmed at quote time against an RFQ.

Package and mounting

The part is supplied in a 14-SOIC package (0.154" body width, 3.90 mm) for surface-mount assembly. It is available in Tape & Reel (TR) and Cut Tape (CT) options, fitting standard pick-and-place lines. The supplier device package is 14-SOIC; no special soldering profile is required beyond standard lead-free reflow.

Frequently asked questions

Is SN74HC21DR compatible with 5V logic?

Yes, the 2V to 6V supply range includes 5V. Input logic thresholds scale with VCC, so 5V CMOS and TTL outputs will reliably drive the gate at a 5V supply.

What is the pinout of SN74HC21DR?

The SN74HC21DR uses the standard 14-SOIC pinout for a dual 4-input AND gate. Pin assignments follow the 74HC21 convention: pins 1-4 and 9-12 are the two sets of four inputs, pin 6 and 8 are the outputs, pin 7 is GND, and pin 14 is VCC.

Is SN74HC21DR equivalent to 74HC21?

Yes, the SN74HC21DR is the surface-mount variant of the 74HC21 logic function. It is electrically identical to the through-hole SN74HC21N but in a 14-SOIC package.