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SN74HC27N

Public Made by Adom

by adom

lingxingic Logic Gates, DIP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN74HC27N

lingxingic · Logic Gates · DIP-14

SN74HC27N from lingxingic, in a DIP-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1A input Data input of NOR gate 1; recommended input voltage is 0 V to VCC and the input clamping current limit is ±20 mA.
2 1B input Data input of NOR gate 1; recommended input voltage is 0 V to VCC and the input clamping current limit is ±20 mA.
3 2A input Data input of NOR gate 2; recommended input voltage is 0 V to VCC and the input clamping current limit is ±20 mA.
4 2B input Data input of NOR gate 2; recommended input voltage is 0 V to VCC and the input clamping current limit is ±20 mA.
5 2C input Data input of NOR gate 2; recommended input voltage is 0 V to VCC and the input clamping current limit is ±20 mA.
6 2Y output Output of NOR gate 2, which is low when any input is high; absolute maximum output current is ±25 mA.
7 GND power_in Ground reference (0 V); absolute maximum ground current is -50 mA.
8 3Y output Output of NOR gate 3, which is low when any input is high; absolute maximum output current is ±25 mA.
9 3A input Data input of NOR gate 3; recommended input voltage is 0 V to VCC and the input clamping current limit is ±20 mA.
10 3B input Data input of NOR gate 3; recommended input voltage is 0 V to VCC and the input clamping current limit is ±20 mA.
11 3C input Data input of NOR gate 3; recommended input voltage is 0 V to VCC and the input clamping current limit is ±20 mA.
12 1Y output Output of NOR gate 1, which is low when any input is high; absolute maximum output current is ±25 mA.
13 1C input Data input of NOR gate 1; recommended input voltage is 0 V to VCC and the input clamping current limit is ±20 mA.
14 VCC power_in Supply voltage; recommended range is 2.0 V to 6.0 V (SN74HC27) or 4.5 V to 5.5 V (SN74HCT27), with absolute maximum +7 V.

Key specifications

Parameter Value
Manufacturer lingxingic
Package DIP-14
Category Logic
Pins 14

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
supply voltage VCC -0.5 7 V 7
input clamping current IIK -20 20 mA VI < -0.5V or VI > VCC+0.5V 7
output clamping current IOK -20 20 mA VO < -0.5V or VO > VCC+0.5V 7
output current IO -25 25 mA -0.5V < VO < VCC+0.5V 7
supply current ICC 50 mA 7
ground current IGND -50 mA 7
total power dissipation Ptot 500 mW 7
storage temperature Tstg -65 150 ℃ 7
soldering temperature TL 245 ℃ 10s DIP 7
supply voltage VCC 2 5 6 V 7
input voltage VI 0 V 7
output voltage VO 0 V 7
input transition rise and fall rate Δt/ΔV 625 ns/V VCC=2.0V 7
input transition rise and fall rate Δt/ΔV 1.67 139 ns/V VCC=4.5V 7
input transition rise and fall rate Δt/ΔV 83 ns/V VCC=6.0V 7
ambient temperature Tamb -40 125 ℃ 7
HIGH-level input voltage VIH 1.5 1.2 V Tamb=25℃; VCC=2.0V 8
HIGH-level input voltage VIH 3.15 2.4 V Tamb=25℃; VCC=4.5V 8
HIGH-level input voltage VIH 4.2 3.2 V Tamb=25℃; VCC=6.0V 8
LOW-level input voltage VIL 0.8 0.5 V Tamb=25℃; VCC=2.0V 8
LOW-level input voltage VIL 2.1 1.35 V Tamb=25℃; VCC=4.5V 8
LOW-level input voltage VIL 2.8 1.8 V Tamb=25℃; VCC=6.0V 8
HIGH-level output voltage VOH 1.9 2 V Tamb=25℃; VI=VIH or VIL; IO=-20uA; VCC=2.0V 8
HIGH-level output voltage VOH 4.4 4.5 V Tamb=25℃; VI=VIH or VIL; IO=-20uA; VCC=4.5V 8
HIGH-level output voltage VOH 5.9 6 V Tamb=25℃; VI=VIH or VIL; IO=-20uA; VCC=6.0V 8
HIGH-level output voltage VOH 3.98 4.32 V Tamb=25℃; VI=VIH or VIL; IO=-4.0mA; VCC=4.5V 8
HIGH-level output voltage VOH 5.48 5.81 V Tamb=25℃; VI=VIH or VIL; IO=-5.2mA; VCC=6.0V 8
LOW-level output voltage VOL 0 0.1 V Tamb=25℃; VI=VIH or VIL; IO=20uA; VCC=2.0V 8
LOW-level output voltage VOL 0.15 0.26 V Tamb=25℃; VI=VIH or VIL; IO=4.0mA; VCC=4.5V 8
LOW-level output voltage VOL 0.16 0.26 V Tamb=25℃; VI=VIH or VIL; IO=5.2mA; VCC=6.0V 8
input leakage current II -1 1 uA Tamb=25℃; VI=VCC or GND; VCC=6.0V 8
supply current ICC 2 uA Tamb=25℃; VI=VCC or GND; IO=0A; VCC=6.0V 8
input capacitance CI 3.5 pF Tamb=25℃ 8
propagation delay nA, nB, nC to nY tpd 28 90 ns Tamb=25℃; see Figure 5; VCC=2.0V 11
propagation delay nA, nB, nC to nY tpd 10 18 ns Tamb=25℃; see Figure 5; VCC=4.5V 11
propagation delay nA, nB, nC to nY tpd 8 15 ns Tamb=25℃; see Figure 5; VCC=6.0V 11
transition time tt 19 75 ns Tamb=25℃; see Figure 5; VCC=2.0V 11
transition time tt 7 15 ns Tamb=25℃; see Figure 5; VCC=4.5V 11
transition time tt 6 13 ns Tamb=25℃; see Figure 5; VCC=6.0V 11
HIGH-level input voltage VIH 1.5 V Tamb=-40℃ to +125℃; VCC=2.0V 10
HIGH-level input voltage VIH 3.15 V Tamb=-40℃ to +125℃; VCC=4.5V 10
HIGH-level input voltage VIH 4.2 V Tamb=-40℃ to +125℃; VCC=6.0V 10
LOW-level input voltage VIL 0.5 V Tamb=-40℃ to +125℃; VCC=2.0V 10
LOW-level input voltage VIL 1.35 V Tamb=-40℃ to +125℃; VCC=4.5V 10
LOW-level input voltage VIL 1.8 V Tamb=-40℃ to +125℃; VCC=6.0V 10
HIGH-level output voltage VOH 1.9 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-20uA; VCC=2.0V 10
HIGH-level output voltage VOH 4.4 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-20uA; VCC=4.5V 10
HIGH-level output voltage VOH 5.9 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-20uA; VCC=6.0V 10
HIGH-level output voltage VOH 3.7 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-4.0mA; VCC=4.5V 10
HIGH-level output voltage VOH 5.2 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-5.2mA; VCC=6.0V 10
LOW-level output voltage VOL 0.1 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=20uA; VCC=2.0V 10
LOW-level output voltage VOL 0.4 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=4.0mA; VCC=4.5V 10
input leakage current II -1 1 uA Tamb=-40℃ to +125℃; VI=VCC or GND; VCC=6.0V 10
supply current ICC 40 uA Tamb=-40℃ to +125℃; VI=VCC or GND; IO=0A; VCC=6.0V 10

CAD (KiCad official)

  • Symbol: SN74HC27N
  • Footprint: Package_DIP:DIP-14_W7.62mm
  • 3D model: DIP-14 (KiCad packages3D, STEP)
  • 3D model files: sn74hc27n-etched.step / sn74hc27n-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hc27n.step / sn74hc27n.glb are the bare package body.

Provenance

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

  • Datasheet: lingxingic datasheet (18 pp, sha256 cf7ee2dbc2b2f9ab, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF