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Texas Instruments SN74HC21PW — Signal Isolation
Texas Instruments

SN74HC21PW TI 74HC AND Gate, 2V-6V Supply, 14-TSSOP

MPNSN74HC21PW
End of Life

Texas Instruments SN74HC21PW, 74HC series AND Gate, 2 Circuits 4-Input, 14-TSSOP package, Surface Mount, 2V to 6V supply, -40°C to 85°C operating temperature.

$1.16Ref. price · indicative, final on quote
SN74HC21PW datasheet
Packaging14-TSSOP (0.173", 4.40mm 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

SN74HC21PW 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
PackageTube
Case14-TSSOP (0.173\", 4.40mm 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-TSSOP — what it does and where it fits

The Texas Instruments SN74HC21PW is a dual 4-input AND gate from the 74HC series, in a 14-TSSOP (4.40 mm width) for surface-mount boards. It contains two independent 4-input AND functions, each output high only when all four inputs are high.

Quiescent current and output drive

Quiescent current sits at 2 µA max, making this gate negligible in the power budget for battery-backed or always-on logic. Each output can source or sink 5.2 mA, enough to drive a single standard CMOS load or a low-power LED indicator, but not intended for heavy fan-out beyond a few gate inputs.

Frequently asked questions

Where can I buy SN74HC21PW?

This part is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time. No stock or price figures are published here.

What is the closest functional second-source — SN74HC21N?

The SN74HC21N is the through-hole DIP version of the same dual 4-input AND gate, with identical logic, supply range, and timing. It is not a surface-mount drop-in but a valid alternate for boards that accept through-hole packages.