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Texas Instruments CD74HCT32E — Analog & Data Acquisition
Texas Instruments

CD74HCT32E TI OR Gate, 74HCT, 4-ch 2-in, 14-DIP

MPNCD74HCT32E
End of Life

Texas Instruments 74HCT series, OR Gate, 4-ch 2-input, 14-DIP (0.300", 7.62mm), Through Hole, 4.5V ~ 5.5V supply, -55°C ~ 125°C, 24ns @ 4.5V/50pF.

$0.72Ref. price · indicative, final on quote
CD74HCT32E datasheet
Packaging14-DIP (0.300", 7.62mm)
StockContact for availability
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Specifications

CD74HCT32E Technical Specifications
ParameterValue
Series74HCT
Logic typeOR Gate
Mounting typeThrough Hole
Voltage4.5V ~ 5.5V
Current - quiescent2 µA
Current - output high, low4mA, 4mA
Number of inputs2
Operating temperature-55°C ~ 125°C
PackageTube
Case14-DIP (0.300\", 7.62mm)
Number of circuits4
Input logic level - low0.8V
Input logic level - high2V
Max propagation delay @ v, max CL24ns @ 4.5V, 50pF

Product details

What this part is — quad 2-input OR gate in 74HCT

The CD74HCT32E: Package is 14-DIP with 0.300" body width (14-PDIP). Through-hole mounting.

Temperature range and deployment environments

Operating temperature range is -55°C to 125°C.

Propagation delay — timing margin for 5V buses

Maximum propagation delay is 24 ns at 4.5V with 50 pF load.

Lifecycle and sourcing posture

The CD74HCT32E is listed as Active in production with ROHS3 compliance. For a production BOM, this part carries no imminent obsolescence risk.

Frequently asked questions

What is CD74HCT32E equivalent?

The CD74HCT32E is a quad 2-input OR gate in 74HCT logic. A functional equivalent in the same 74HCT family is the CD74HCT132M96, but that is a NAND gate with Schmitt-trigger inputs, not a direct OR-gate replacement. For a pin-compatible OR gate, stick with the 74HCT32 or 74HC32 in the same DIP footprint.

Can CD74HCT32E replace 74HC32?

Yes, the CD74HCT32E can replace a 74HC32 in a 5V system. The HCT variant has TTL-compatible input thresholds (0.8V low, 2V high), while the HC variant uses CMOS thresholds (roughly 1.5V at 5V). If your driving logic is TTL-level, the HCT version is the correct choice. If the driver is CMOS, either works, but the HCT version draws slightly more input current.

Can CD74HCT32E be used with 5V supply?

Yes, the CD74HCT32E is designed for a 4.5V to 5.5V supply range, making it fully compatible with 5V TTL and CMOS systems. The 5V rail is its nominal operating voltage.

What is the difference between CD74HCT32E and CD74HC32E?

The CD74HCT32E has TTL-compatible input thresholds (0.8V low, 2V high), while the CD74HC32E uses CMOS thresholds (typically 1.5V at 5V). Both are quad 2-input OR gates in the same pinout and package. The HCT version is the right pick when interfacing to TTL logic outputs; the HC version is preferred for pure CMOS systems where lower input current matters.