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Texas Instruments CD74HC03M — Logic ICs

CD74HC03M 74HC Quad 2-Input NAND Gate, Open Drain, 14-SOIC

MPNCD74HC03M
End of Life

74HC series, Quad 2-Input NAND Gate, Open Drain, 14-SOIC (0.154", 3.90mm Width), Surface Mount, 2V to 6V supply, -55°C to 125°C operating temperature.

$1.23Ref. price · indicative, final on quote
Packaging14-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Series74HC
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CD74HC03M specifications
ParameterValue
Series74HC
Logic typeNAND Gate
MountingSurface Mount
Supply voltage2V ~ 6V
Current - quiescent2 µA
Current - output high, low-, 5.2mA
I/O channels2
Operating temperature-55°C ~ 125°C
PackageTube
FeaturesOpen Drain
Case14-SOIC (0.154\", 3.90mm Width)
Number of circuits4
Input logic level - low0.5V ~ 1.8V
Input logic level - high1.5V ~ 4.2V
Max propagation delay @ v, max CL17ns @ 6V, 50pF

Product details

Quad 2-input NAND with open-drain outputs — the wired-OR workhorse

The CD74HC03M is a 74HC-series quad 2-input NAND gate with open-drain outputs. Each gate sinks 5.2 mA per channel; the high side floats, requiring an external pull-up resistor. Supply range covers 2 V to 6 V, so it sits comfortably in a mixed-voltage BOM. The 17 ns propagation delay at 6 V, 50 pF is fast enough for most control and interface logic but not a contender for high-speed memory address decoding — that is not its job.

Open drain means external pull-up — plan the resistor

Rise time depends on the external pull-up resistor and load capacitance. Quiescent current is 2 µA.

No NRND flag or last-time-buy notice exists.

Package and footprint — 14-SOIC, surface-mount only

The part comes in a 14-SOIC package (3.90 mm body width, 0.154" pitch) and is supplied in Tube — not Tape & Reel by default, so if your pick-and-place line expects reeled parts, factor in the tube-to-reel transfer or confirm the distributor can supply it on a reel. The mounting is surface-mount only; no through-hole variant exists in this order code.

Frequently asked questions

Is CD74HC03M open drain?

Yes — the CD74HC03M features open-drain outputs on all four NAND gates. The high-side driver is absent, so an external pull-up resistor is required for the output to reach a logic-high level.

What is the difference between CD74HC03M and 74HC00?

The 74HC00 has standard totem-pole outputs that can both source and sink current. The CD74HC03M uses open-drain outputs — it can only sink current, and the high level is set by an external pull-up resistor. This makes the CD74HC03M the right choice for wired-OR connections and level translation, while the 74HC00 is better for driving standard CMOS inputs without an extra resistor.