component

CD74HC85E

Public Made by Adom

by adom

Texas Instruments Digital Comparators, PDIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentlogic icscd74hc85efactory-2.0.0extractor-text

Verified CD74HC85E

by Ray · last 2 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

2 Nov 2026RayPublished by the parts factory: tier mfr, 16 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: CD74HC85E · PDIP-16 · 16 pins
  • ✓copper: 16 copper pads, none touching another net
  • ✓datasheet: all 16 pin names found in the 20-page datasheet
  • ✓distributor: lcsc C134106, digikey 2156-CD74HC85E-ND, mouser 595-CD74HC85E
  • ✓family: DIP-16_W7.62mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-a_57txo1/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 16 pins = 16 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 16 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ cd74hc85e.kicad_sym✓ cd74hc85e.kicad_mod✓ cd74hc85e.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray
viewers cd74hc85e: viewers · Ray
cd74hc85e-etched.glb Publish 0.1.0 · Ray
cd74hc85e-etched.step cd74hc85e: factory component page (tier=mfr) · Ray
cd74hc85e-hero.glb cd74hc85e: hero GLB from the etched model (keeps the MPN mark) · Ray
cd74hc85e-hero.overlay.json Publish 0.1.0 · Ray
cd74hc85e.glb Publish 0.1.0 · Ray
cd74hc85e.kicad_mod Publish 0.1.0 · Ray
cd74hc85e.kicad_sym Publish 0.1.0 · Ray
cd74hc85e.lbr Publish 0.1.0 · Ray
cd74hc85e.step Publish 0.1.0 · Ray
package.json Publish 0.1.0 · Ray
page.json Set visibility: public · Ray
README.md Publish 0.1.0 · Ray
verification.json Verified: Published by the parts factory: tier mfr, 16 pins · Ray

CD74HC85E

Texas Instruments · Digital Comparators · PDIP-16

CD74HC85E from Texas Instruments, in a PDIP-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 B3 input Most significant bit of 4-bit word B, with input voltage range 0V to VCC.
2 (A<B) IN input Cascading input for A<B from a previous stage, used for serial or parallel expansion.
3 (A=B) IN input Cascading input for A=B from a previous stage, which must be high for the A=B output in single-device use.
4 (A>B) IN input Cascading input for A>B from a previous stage, used for serial or parallel expansion.
5 (A>B) OUT output Buffered output that goes high when word A is greater than word B, with source or sink current up to ±25mA per output pin.
6 (A=B) OUT output Buffered output that goes high when word A equals word B, with source or sink current up to ±25mA per output pin.
7 (A<B) OUT output Buffered output that goes high when word A is less than word B, with source or sink current up to ±25mA per output pin.
8 GND power_in Ground pin, with maximum DC VCC or ground current of ±50mA.
9 B0 input Least significant bit of 4-bit word B, with input voltage range 0V to VCC.
10 A0 input Least significant bit of 4-bit word A, with input voltage range 0V to VCC.
11 B1 input Bit 1 of 4-bit word B, with input voltage range 0V to VCC.
12 A1 input Bit 1 of 4-bit word A, with input voltage range 0V to VCC.
13 A2 input Bit 2 of 4-bit word A, with input voltage range 0V to VCC.
14 B2 input Bit 2 of 4-bit word B, with input voltage range 0V to VCC.
15 A3 input Most significant bit of 4-bit word A, with input voltage range 0V to VCC.
16 VCC power_in Positive supply pin, with HC-type operating range of 2V to 6V and absolute maximum of -0.5V to 7V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package PDIP-16
Category Logic ICs
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
High Level Input Voltage VIH 1.5 V VCC=2V, 25°C 3
High Level Input Voltage VIH 3.15 V VCC=4.5V, 25°C 3
High Level Input Voltage VIH 4.2 V VCC=6V, 25°C 3
Low Level Input Voltage VIL 0.5 V VCC=2V, 25°C 3
Low Level Input Voltage VIL 1.35 V VCC=4.5V, 25°C 3
Low Level Input Voltage VIL 1.8 V VCC=6V, 25°C 3
High Level Output Voltage CMOS Loads VOH 1.9 V VI=VIH or VIL; IO=-0.02mA; VCC=2V; 25°C 3
High Level Output Voltage CMOS Loads VOH 4.4 V VI=VIH or VIL; IO=-0.02mA; VCC=4.5V; 25°C 3
High Level Output Voltage CMOS Loads VOH 5.9 V VI=VIH or VIL; IO=-0.02mA; VCC=6V; 25°C 3
High Level Output Voltage TTL Loads VOH 3.98 V VI=VIH or VIL; IO=-4mA; VCC=4.5V; 25°C 3
High Level Output Voltage TTL Loads VOH 5.48 V VI=VIH or VIL; IO=-5.2mA; VCC=6V; 25°C 3
Low Level Output Voltage CMOS Loads VOL 0.1 V VI=VIH or VIL; IO=0.02mA; VCC=2V; 25°C 3
Low Level Output Voltage TTL Loads VOL 0.26 V VI=VIH or VIL; IO=4mA; VCC=4.5V; 25°C 3
Input Leakage Current II -0.1 0.1 µA VI=VCC or GND; VCC=6V; 25°C 3
Quiescent Device Current ICC 8 µA VI=VCC or GND; IO=0; VCC=6V; 25°C 3
Quiescent Device Current ICC 80 µA VI=VCC or GND; IO=0; VCC=6V; -40°C to 85°C 3
Quiescent Device Current ICC 160 µA VI=VCC or GND; IO=0; VCC=6V; -55°C to 125°C 3
Propagation Delay An,Bn to (A>B) OUT, (A<B) OUT tPLH, tPHL 195 ns CL=50pF; VCC=2V; 25°C 4
Propagation Delay An,Bn to (A>B) OUT, (A<B) OUT tPLH, tPHL 39 ns CL=50pF; VCC=4.5V; 25°C 4
Propagation Delay An,Bn to (A>B) OUT, (A<B) OUT tPLH, tPHL 33 ns CL=50pF; VCC=6V; 25°C 4
Propagation Delay An,Bn to (A=B) OUT tPLH, tPHL 175 ns CL=50pF; VCC=2V; 25°C 4
Propagation Delay An,Bn to (A=B) OUT tPLH, tPHL 35 ns CL=50pF; VCC=4.5V; 25°C 4
Propagation Delay An,Bn to (A=B) OUT tPLH, tPHL 30 ns CL=50pF; VCC=6V; 25°C 4
Propagation Delay (A>B) IN, (A<B) IN, (A=B) IN to (A>B) OUT, (A<B) OUT tPLH, tPHL 140 ns CL=50pF; VCC=2V; 25°C 5
Propagation Delay (A>B) IN, (A<B) IN, (A=B) IN to (A>B) OUT, (A<B) OUT tPLH, tPHL 28 ns CL=50pF; VCC=4.5V; 25°C 5
Propagation Delay (A>B) IN, (A<B) IN, (A=B) IN to (A>B) OUT, (A<B) OUT tPLH, tPHL 24 ns CL=50pF; VCC=6V; 25°C 5
Propagation Delay (A>B) IN to (A=B) OUT tPLH, tPHL 120 ns CL=50pF; VCC=2V; 25°C 5
Propagation Delay (A>B) IN to (A=B) OUT tPLH, tPHL 24 ns CL=50pF; VCC=4.5V; 25°C 5
Propagation Delay (A>B) IN to (A=B) OUT tPLH, tPHL 20 ns CL=50pF; VCC=6V; 25°C 5
Output Transition Times tTLH, tTHL 75 ns CL=50pF; VCC=2V; 25°C 5
Output Transition Times tTLH, tTHL 15 ns CL=50pF; VCC=4.5V; 25°C 5
Output Transition Times tTLH, tTHL 13 ns CL=50pF; VCC=6V; 25°C 5
Input Capacitance CIN 10 pF 5
Supply Voltage Range HC Types VCC 2 6 V HC types 3
Temperature Range TA -55 125 °C 3
Input Rise and Fall Time tr, tf 1000 ns VCC=2V 3
Input Rise and Fall Time tr, tf 500 ns VCC=4.5V 3
Input Rise and Fall Time tr, tf 400 ns VCC=6V 3
DC Supply Voltage VCC -0.5 7 V 3
DC Input Diode Current IIK -20 20 mA VI < -0.5V or VI > VCC + 0.5V 3
DC Output Diode Current IOK -20 20 mA VO < -0.5V or VO > VCC + 0.5V 3
DC Output Source or Sink Current per Output Pin IO -25 25 mA VO > -0.5V or VO < VCC + 0.5V 3
DC VCC or Ground Current ICC or IGND -50 50 mA 3
Maximum Junction Temperature TJ 150 °C 3
Maximum Storage Temperature Range TSTG -65 150 °C 3
Maximum Lead Temperature (Soldering 10s) 300 °C 10s 3

CAD (KiCad official)

  • Symbol: CD74HC85E
  • Footprint: Package_DIP:DIP-16_W7.62mm
  • 3D model: PDIP-16 (KiCad packages3D, STEP)
  • 3D model files: cd74hc85e-etched.step / cd74hc85e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cd74hc85e.step / cd74hc85e.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (20 pp, sha256 4191b8c2e4732748, retrieved 2026-11-02, tier: manufacturer)
  • 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