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CD4071B Quad OR Gate

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by Ray

Quad OR Gate in the 4000B CMOS family, 3 V to 18 V.

logicgate4000-seriescmostisoic-14
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CD4071B

Texas Instruments · Logic Gate · SOIC-14

The CD4071B contains four independent 2-input OR gates; each output is high when either input is high. It runs from 3 V to 18 V, part of the 4000B CMOS logic family.

Pinout

Pin Name Type Function
1 A input Gate 1 input A. CMOS logic input, VIH min 3.5 V @ VDD=5 V. Input protected by CMOS protection network.
2 B input Gate 1 input B. CMOS logic input paired with A to form OR gate 1 (J = A+B).
3 J output Gate 1 output, J = A + B. CMOS push-pull output; IOL/IOH ≈ 0.51 mA min @ VDD=5 V, VOL/VOH ≤ 0.05 V/≥ 4.95 V.
4 K output Gate 2 output, K = C + D. CMOS push-pull output.
5 C input Gate 2 input C. CMOS logic input.
6 D input Gate 2 input D. CMOS logic input paired with C to form OR gate 2 (K = C+D).
7 VSS power_in Negative supply / ground reference (0 V). All logic levels referenced to VSS.
8 E input Gate 3 input E. CMOS logic input.
9 F input Gate 3 input F. CMOS logic input paired with E to form OR gate 3 (L = E+F).
10 L output Gate 3 output, L = E + F. CMOS push-pull output.
11 M output Gate 4 output, M = G + H. CMOS push-pull output.
12 G input Gate 4 input G. CMOS logic input.
13 H input Gate 4 input H. CMOS logic input paired with G to form OR gate 4 (M = G+H).
14 VDD power_in Positive supply voltage. Operating range 3-18 V (absolute max −0.5 V to +20 V). Bypass to VSS with 0.1 µF ceramic capacitor near the device.

Key specifications

Parameter Value
Type Quad OR Gate
Logic family 4000B (CMOS)
Supply voltage 3 V to 18 V
Propagation delay 45 ns typ at 10 V
Operating temperature -55 C to 125 C

Ordering variants

Same part, different packaging or reel option.

  • CD4071BE
  • CD4071BEE4
  • CD4071BF
  • CD4071BF3A
  • CD4071BM
  • CD4071BM96
  • CD4071BME4
  • CD4071BMG4
  • CD4071BMT
  • CD4071BMTE4
  • CD4071BMTG4
  • CD4071BNSR
  • CD4071BNSRE4
  • CD4071BNSRG4
  • CD4071BPW
  • CD4071BPWE4
  • CD4071BPWG4
  • CD4071BPWR
  • CD4071BPWRE4
  • CD4071BPWRG4

CAD (KiCad official)

  • Symbol: cd4071.kicad_sym
  • Footprint: cd4071.kicad_mod
  • 3D model: SOIC-14 body from KiCad Package_SO/SOIC-14_3.9x8.7mm_P1.27mm.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (34 pp, sha256 8611af98ab021775, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF