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Texas Instruments SN74HCS32PWR — Logic ICs

SN74HCS32PWR TI OR Gate, Schmitt Trigger, 14-TSSOP

MPNSN74HCS32PWR
End of Life

Texas Instruments 74HCS series, SN74HCS32PWR, OR Gate, Schmitt Trigger Input, 4 Circuits, 2 Inputs, 7.8mA output, 2V to 6V supply, -40°C to 125°C, 14-TSSOP.

$0.37Ref. price · indicative, final on quote
Texas Instruments SN74HCS32PWR datasheet (PDF)
Packaging14-TSSOP (0.173", 4.40mm Width)
RoHSROHS3 Compliant
Series74HCS
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74HCS32PWR specifications
ParameterValue
Series74HCS
Logic typeOR Gate
MountingSurface Mount
Supply voltage2V ~ 6V
Current - quiescent2 µA
Current - output high, low7.8mA, 7.8mA
I/O channels2
Operating temperature-40°C ~ 125°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesSchmitt Trigger Input
Case14-TSSOP (0.173\", 4.40mm Width)
Number of circuits4
Input logic level - low1V ~ 3V
Input logic level - high1.5V ~ 4.2V
Max propagation delay @ v, max CL12ns @ 6V, 50pF

Product details

Quad OR gate with Schmitt-trigger inputs for noisy rails

What the Schmitt-trigger buys you

The Schmitt-trigger inputs accept slow or noisy signals without extra external hysteresis. Input logic low is 1V to 3V, high is 1.5V to 4.2V — the hysteresis window varies with supply. This cleans up signals from mechanical switches, RC oscillators, or long PCB traces that pick up crosstalk. The 2 µA max quiescent current keeps the power budget tight even with all four gates switching.

Output drive and propagation delay

Each output sources or sinks 7.8 mA, enough to drive a standard CMOS load or an LED indicator through a series resistor. Propagation delay is 12 ns typical at 6V with a 50 pF load, which keeps up with most microcontroller bus handshakes and glue-logic paths. For higher drive or faster edges, the 74AC32 (SN74AC32DR) offers 24 mA output and 7.5 ns delay but lacks the Schmitt-trigger inputs and tops out at 85°C.

Frequently asked questions

What is the difference between SN74HCS32PWR and SN74HC32PWR?

The HCS variant adds Schmitt-trigger inputs to the standard HC32 quad OR gate. Both share the same pinout and 14-TSSOP package, but the HCS version handles slow or noisy input edges without external hysteresis.

What package does SN74HCS32PWR come in?

It comes in a 14-TSSOP package (4.40 mm width), supplied in Tape & Reel (TR) or Cut Tape (CT).

What are alternatives to SN74HCS32PWR?

The SN74HC32PWR is the same quad OR gate without Schmitt-trigger inputs. For higher output drive (24 mA) and faster propagation delay (7.5 ns) but narrower temperature range (85°C), the SN74AC32DR is an option. Neither is a drop-in replacement — verify the pinout and input thresholds for your design.