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Texas Instruments SN74HCS30DR — Logic ICs

SN74HCS30DR NAND Gate, 8-Input, Schmitt Trigger, 14-SOIC

MPNSN74HCS30DR
End of Life

Texas Instruments 74HCS series, SN74HCS30DR, single 8-input NAND gate with Schmitt-trigger inputs, 2V to 6V supply, -40°C to 125°C, 14-SOIC package, Tape & Reel.

$0.35Ref. price · indicative, final on quote
Texas Instruments SN74HCS30DR datasheet (PDF)
Packaging14-SOIC (0.154", 3.90mm Width)
RoHSNot applicable
Series74HCS
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74HCS30DR specifications
ParameterValue
Series74HCS
Logic typeNAND Gate
MountingSurface Mount
Supply voltage2V ~ 6V
Current - quiescent2 µA
Current - output high, low-, 7.8mA
I/O channels8
Operating temperature-40°C ~ 125°C
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesSchmitt Trigger Input
Case14-SOIC (0.154\", 3.90mm Width)
Number of circuits1
Input logic level - low1V ~ 3V
Input logic level - high1.5V ~ 4.2V
Max propagation delay @ v, max CL27ns @ 6V, 50pF

Product details

The SN74HCS30DR is a single 8-input NAND gate from TI's 74HCS family, with Schmitt-trigger inputs on all eight pins. Supply range of 2V to 6V covers both 3.3V and 5V logic rails, and the -40°C to 125°C temperature grade means it can sit in an outdoor telecom cabinet or an engine-bay controller without derating drama. Housed in a 14-SOIC package, it's a drop-in for existing 14-pin SOIC footprints on mixed-signal or digital boards.

Output drive and timing

Output is rated for 7.8 mA sink (low-side) with no specified source current. Propagation delay is 27 ns max at 6V with a 50 pF load.

Frequently asked questions

What is the exact input logic level threshold for SN74HCS30DR?

The input logic levels are specified as ranges: low is 1V to 3V, high is 1.5V to 4.2V, varying with supply voltage. The Schmitt trigger provides hysteresis, so the actual switching thresholds depend on the supply and the direction of the input transition.

Is SN74HCS30DR equivalent to 74HC30?

Functionally yes — both are single 8-input NAND gates. The key difference is the HCS family adds Schmitt-trigger inputs, which the standard 74HC30 lacks. The SN74HCS30DR also has a wider temperature range (-40°C to 125°C) versus the typical 74HC30's -40°C to 85°C. Pinout is the same 14-SOIC, so it's a drop-in replacement with better noise immunity.

Does SN74HCS30DR have a recommended PCB footprint?

The part uses a standard 14-SOIC package (3.90 mm body width). The recommended footprint matches any generic 14-SOIC land pattern per IPC-7351 or the manufacturer's datasheet. No special thermal or clearance requirements beyond standard SMD practice.