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Texas Instruments CD4081BE — Logic ICs

CD4081BE 4000B Quad 2-Input AND Gate, 3V-18V, -55°C to 125°C

MPNCD4081BE
End of Life

Texas Instruments CD4081BE, 4000B series, Quad 2-Input AND Gate, 3V to 18V supply, 14-DIP (0.300", 7.62mm), Through Hole, -55°C to 125°C, 1 µA quiescent current.

$0.88Ref. price · indicative, final on quote
Texas Instruments CD4081BE datasheet (PDF)
Packaging14-DIP (0.300", 7.62mm)
RoHSROHS3 Compliant
Series4000B
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CD4081BE specifications
ParameterValue
Series4000B
Logic typeAND Gate
MountingThrough Hole
Supply voltage3V ~ 18V
Current - quiescent1 µA
Current - output high, low3.4mA, 3.4mA
I/O channels2
Operating temperature-55°C ~ 125°C
PackageTube
Case14-DIP (0.300\", 7.62mm)
Number of circuits4
Input logic level - low1.5V ~ 4V
Input logic level - high3.5V ~ 11V
Max propagation delay @ v, max CL90ns @ 15V, 50pF

Product details

What this AND gate does on your board

The CD4081BE is a quad 2-input AND gate from the classic 4000B CMOS logic family, in a 14-pin DIP package for through-hole assembly.

Supply voltage and logic-level compatibility

The 3V to 18V supply range is the 4000B family's main advantage over 5V-only logic. At 5V, the input low threshold is 1.5V to 4V and the high threshold is 3.5V to 11V, so the gate directly accepts 5V CMOS and TTL levels with margin. At 12V or 15V rails, the same gate can interface with higher-voltage sensors or analog circuits without a level shifter. The output can source or sink 3.4 mA per gate, enough to drive a standard LED or a CMOS input on the next stage.

Propagation delay and speed context

Maximum propagation delay is 90 ns at 15V with a 50 pF load. That is slower than a 74HC gate (19 ns at 6V), but the 4000B family trades speed for noise immunity and wide supply tolerance. For clock rates below 5 MHz or for control logic, glitch filtering, and enable gating, the delay is irrelevant. For high-speed data paths, pick a 74HC or 74AC part instead.

The 14-DIP (0.300", 7.62mm) through-hole package is breadboard-friendly and hand-solderable. The supplier device package is 14-PDIP. MSL rating is not listed, but DIP packages are typically MSL 1 (no bake required).

The part is ROHS3 compliant.

Frequently asked questions

What is the equivalent of CD4081BE?

The CD4081BE is a quad 2-input AND gate. A functional equivalent in the same 4000B family is the CD4025BM96, which is a triple 3-input NOR gate — different logic function, same supply and temperature range. For a pin-compatible AND gate, the SN74HC21N is a dual 4-input AND gate in a different package and with a narrower supply range (2V to 6V) and temperature range (-40°C to 85°C). Neither is a drop-in replacement; verify the logic function and pinout against your design.

Is CD4081BE compatible with 5V logic?

Yes. At a 5V supply, the input low threshold is 1.5V to 4V and the high threshold is 3.5V to 11V, so the gate directly accepts standard 5V CMOS and TTL output levels without external level shifting.