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Texas Instruments SN74HC08N — Logic ICs

SN74HC08N 74HC Quad 2-Input AND Gate, 17ns @ 6V, DIP-14

MPNSN74HC08N
End of Life

Texas Instruments 74HC series SN74HC08N, AND Gate, 4 Circuits, 2 Inputs, 2V to 6V Supply, 5.2mA Output, Through Hole, 14-DIP, -40°C to 85°C.

$0.6Ref. price · indicative, final on quote
Packaging14-DIP (0.300", 7.62mm)
RoHSROHS3 Compliant
Series74HC
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74HC08N specifications
ParameterValue
Series74HC
Logic typeAND Gate
MountingThrough Hole
Supply voltage2V ~ 6V
Current - quiescent2 µA
Current - output high, low5.2mA, 5.2mA
I/O channels2
Operating temperature-40°C ~ 85°C
PackageTube
Case14-DIP (0.300\", 7.62mm)
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 AND gate in a through-hole DIP — still the workhorse for breadboards and legacy boards

Quiescent current sits at a maximum of 2 µA, making it suitable for power-sensitive designs where the gate is idle most of the time.

The maximum propagation delay is 17 ns at 6V with a 50 pF load. That translates to a practical toggle rate around 20-30 MHz in a typical 5V system — fast enough for address decoding, clock gating, and control signal conditioning on a 10-20 MHz bus, but not for high-speed memory interfaces or 100 MHz+ clock trees. If your design needs sub-10 ns delays, consider the 74LVC or 74AUC families in surface-mount packages.

5.2 mA output drive — sizing for fan-out and LED loads

Both the output high and low current are rated at 5.2 mA. That's enough to drive up to 10 standard 74HC inputs (fan-out of 10) or a single low-current LED with a series resistor. For heavier loads — relays, optocouplers, or long cables — buffer the output with a transistor or a dedicated line driver.

For new designs, the surface-mount sibling SN74HC08DR (SOIC-14) offers a smaller footprint while keeping the same logic function and electrical ratings.

Frequently asked questions

What is the difference between SN74HC08N and SN74HCT08N?

The SN74HCT08N is the TTL-compatible version of the same quad AND gate. It uses the same pinout and package but has TTL-level input thresholds (0.8V low, 2.0V high) instead of the CMOS-level thresholds on the HC variant. If your upstream logic is 5V TTL (e.g., 74LS or 74ALS), the HCT version ensures proper noise margins without extra level shifting.

Is SN74HC08N equivalent to 74HC08?

Yes, the SN74HC08N is Texas Instruments' specific part number for the industry-standard 74HC08 quad 2-input AND gate in a DIP-14 package. It is functionally and pin-compatible with any 74HC08 from other manufacturers (e.g., NXP, ON Semiconductor).