component

SN74HC145N

Public Made by Adom

by adom

lingxingic Signal Switches, Multiplexers, Decoders, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentlogicsn74hc145nfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 7d ago
viewers sn74hc145n: viewers · Ray 7d ago
package.json Publish 0.1.0 · Ray 7d ago
page.json Set visibility: public · Ray 7d ago
README.md Publish 0.1.0 · Ray 7d ago
sn74hc145n-etched.glb Publish 0.1.0 · Ray 7d ago
sn74hc145n-etched.step sn74hc145n: factory component page (tier=lcsc) · Ray 7d ago
sn74hc145n-hero.glb sn74hc145n: hero GLB from the etched model (keeps the MPN mark) · Ray 7d ago
sn74hc145n-hero.overlay.json Publish 0.1.0 · Ray 7d ago
sn74hc145n.glb Publish 0.1.0 · Ray 7d ago
sn74hc145n.kicad_mod Publish 0.1.0 · Ray 7d ago
sn74hc145n.kicad_sym Publish 0.1.0 · Ray 7d ago
sn74hc145n.lbr Publish 0.1.0 · Ray 7d ago
sn74hc145n.step Publish 0.1.0 · Ray 7d ago

SN74HC145N

lingxingic · Signal Switches, Multiplexers, Decoders · DIP-16

SN74HC145N from lingxingic, in a DIP-16. 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 Q0 output Decoded data output Q0, which the function table drives LOW only when the BCD code DCBA = 0000 is applied and HIGH otherwise.
2 Q1 output Decoded data output Q1, which the function table drives LOW only when the BCD code DCBA = 0001 is applied and HIGH otherwise.
3 Q2 output Decoded data output Q2, which the function table drives LOW only when the BCD code DCBA = 0010 is applied and HIGH otherwise.
4 Q3 output Decoded data output Q3, which the function table drives LOW only when the BCD code DCBA = 0011 is applied and HIGH otherwise.
5 Q4 output Decoded data output Q4, which the function table drives LOW only when the BCD code DCBA = 0100 is applied and HIGH otherwise.
6 Q5 output Decoded data output Q5, which the function table drives LOW only when the BCD code DCBA = 0101 is applied and HIGH otherwise.
7 Q6 output Decoded data output Q6, which the function table drives LOW only when the BCD code DCBA = 0110 is applied and HIGH otherwise.
8 GND power_in Ground reference (0 V); all voltages are referenced to this pin.
9 Q7 output Decoded data output Q7, which the function table drives LOW only when the BCD code DCBA = 0111 is applied and HIGH otherwise.
10 Q8 output Decoded data output Q8, which the function table drives LOW only when the BCD code DCBA = 1000 is applied and HIGH otherwise.
11 Q9 output Decoded data output Q9, which the function table drives LOW only when the BCD code DCBA = 1001 is applied and HIGH otherwise.
12 D input BCD data input D (most significant bit), with input levels between 0 V and VCC.
13 C input BCD data input C, with input levels between 0 V and VCC.
14 B input BCD data input B, with input levels between 0 V and VCC.
15 A input BCD data input A (least significant bit), with input levels between 0 V and VCC.
16 VCC power_in Supply voltage: 2.0 V to 6.0 V for SN74HC145 and 4.5 V to 5.5 V for SN74HCT145 per the recommended operating conditions.

Key specifications

Parameter Value
Manufacturer lingxingic
Package DIP-16
Category Logic
Pins 16

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
supply current ICC 50 mA 7
ground current IGND -50 mA 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
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
ambient temperature Tamb -40 125 ℃ 7
HIGH-level input voltage VIH 1.5 1.2 V Tamb=-40℃ to +85℃; VCC=2.0V 8
HIGH-level input voltage VIH 3.15 2.4 V Tamb=-40℃ to +85℃; VCC=4.5V 8
HIGH-level input voltage VIH 4.2 3.2 V Tamb=-40℃ to +85℃; VCC=6.0V 8
LOW-level input voltage VIL 0.8 0.5 V Tamb=-40℃ to +85℃; VCC=2.0V 8
LOW-level input voltage VIL 2.1 1.35 V Tamb=-40℃ to +85℃; VCC=4.5V 8
LOW-level input voltage VIL 2.8 1.8 V Tamb=-40℃ to +85℃; VCC=6.0V 8
HIGH-level output voltage VOH 1.9 2 V Tamb=-40℃ to +85℃; VCC=2.0V; IO=-20uA 8
HIGH-level output voltage VOH 4.4 4.5 V Tamb=-40℃ to +85℃; VCC=4.5V; IO=-20uA 8
HIGH-level output voltage VOH 5.9 6 V Tamb=-40℃ to +85℃; VCC=6.0V; IO=-20uA 8
HIGH-level output voltage VOH 3.84 4.32 V Tamb=-40℃ to +85℃; VCC=4.5V; IO=-4.0mA 8
HIGH-level output voltage VOH 5.34 5.81 V Tamb=-40℃ to +85℃; VCC=6.0V; IO=-5.2mA 8
LOW-level output voltage VOL 0 0.1 V Tamb=-40℃ to +85℃; VCC=2.0V; IO=20uA 8
LOW-level output voltage VOL 0.15 0.33 V Tamb=-40℃ to +85℃; VCC=4.5V; IO=4.0mA 8
LOW-level output voltage VOL 0.16 0.33 V Tamb=-40℃ to +85℃; VCC=6.0V; IO=5.2mA 8
input leakage current II -2 2 uA Tamb=-40℃ to +85℃; VCC=6.0V; VI=VCC or GND 8
supply current ICC 2 uA Tamb=-40℃ to +85℃; VCC=6.0V; VI=VCC or GND; IO=0A 8
HIGH-level input voltage VIH 1.5 V Tamb=-40℃ to +125℃; VCC=2.0V 9
HIGH-level input voltage VIH 3.15 V Tamb=-40℃ to +125℃; VCC=4.5V 9
HIGH-level input voltage VIH 4.2 V Tamb=-40℃ to +125℃; VCC=6.0V 9
LOW-level input voltage VIL 0.5 V Tamb=-40℃ to +125℃; VCC=2.0V 9
LOW-level input voltage VIL 1.35 V Tamb=-40℃ to +125℃; VCC=4.5V 9
LOW-level input voltage VIL 1.8 V Tamb=-40℃ to +125℃; VCC=6.0V 9
HIGH-level output voltage VOH 1.9 V Tamb=-40℃ to +125℃; VCC=2.0V; IO=-20uA 9
HIGH-level output voltage VOH 4.4 V Tamb=-40℃ to +125℃; VCC=4.5V; IO=-20uA 9
HIGH-level output voltage VOH 5.9 V Tamb=-40℃ to +125℃; VCC=6.0V; IO=-20uA 9
HIGH-level output voltage VOH 3.7 V Tamb=-40℃ to +125℃; VCC=4.5V; IO=-4.0mA 9
HIGH-level output voltage VOH 5.2 V Tamb=-40℃ to +125℃; VCC=6.0V; IO=-5.2mA 9
LOW-level output voltage VOL 0.1 V Tamb=-40℃ to +125℃; VCC=2.0V; IO=20uA 9
LOW-level output voltage VOL 0.4 V Tamb=-40℃ to +125℃; VCC=4.5V; IO=4.0mA 9
input leakage current II -4 4 uA Tamb=-40℃ to +125℃; VCC=6.0V; VI=VCC or GND 9
supply current ICC 4 uA Tamb=-40℃ to +125℃; VCC=6.0V; VI=VCC or GND; IO=0A 9
propagation delay tPLH, tPHL 50 ns Tamb=-40℃ to +85℃; VCC=5.0V; CL=45pF; see Figure 3 10
propagation delay tPLH, tPHL 60 ns Tamb=-40℃ to +125℃; VCC=5.0V; CL=45pF; see Figure 3 10

CAD (KiCad official)

  • Symbol: SN74HC145N
  • Footprint: Package_DIP:DIP-16_W7.62mm
  • 3D model: DIP-16 (KiCad packages3D, STEP)
  • 3D model files: sn74hc145n-etched.step / sn74hc145n-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hc145n.step / sn74hc145n.glb are the bare package body.

Provenance

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

  • Datasheet: lingxingic datasheet (15 pp, sha256 936ea512588bedb8, 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