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SN74AHC594N

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

componentlogic icssn74ahc594nfactory-2.0.0extractor-text

Verified SN74AHC594N

by Ray · last 31 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 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: SN74AHC594N · PDIP-16 · 16 pins
  • ✓copper: 16 copper pads, none touching another net
  • ✓datasheet: all 16 pin names found in the 34-page datasheet
  • ✓distributor: lcsc C2868449, digikey 2156-SN74AHC594N-ND, mouser 595-SN74AHC594N
  • ✓family: DIP-16_W7.62mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-g_wvuclt/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✓ sn74ahc594n.kicad_sym✓ sn74ahc594n.kicad_mod✓ sn74ahc594n.step
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Ray Publish 0.1.0 deae0de 14h ago

SN74AHC594N

Texas Instruments · Shifting Register · PDIP-16

SN74AHC594N 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 QB output QB parallel output of the 8-bit storage register, limited to ±25 mA continuous output current (absolute maximum, VO = 0 to VCC).
2 QC output QC parallel output of the 8-bit storage register, limited to ±25 mA continuous output current (absolute maximum, VO = 0 to VCC).
3 QD output QD parallel output of the 8-bit storage register, limited to ±25 mA continuous output current (absolute maximum, VO = 0 to VCC).
4 QE output QE parallel output of the 8-bit storage register, limited to ±25 mA continuous output current (absolute maximum, VO = 0 to VCC).
5 QF output QF parallel output of the 8-bit storage register, limited to ±25 mA continuous output current (absolute maximum, VO = 0 to VCC).
6 QG output QG parallel output of the 8-bit storage register, limited to ±25 mA continuous output current (absolute maximum, VO = 0 to VCC).
7 QH output QH parallel output of the 8-bit storage register, limited to ±25 mA continuous output current (absolute maximum, VO = 0 to VCC).
8 GND power_in Ground pin for the device.
9 QH' output Serial output of the shift register, provided for cascading devices; limited to ±25 mA continuous output current (absolute maximum).
10 SRCLR input Direct overriding clear input for the shift register, independent of the storage register clear.
11 SRCLK input Clock input for the shift register, independent of the storage register clock (RCLK).
12 RCLK input Clock input for the 8-bit storage (output) register, independent of the shift register clock (SRCLK).
13 RCLR input Direct overriding clear input for the storage register, independent of the shift register clear.
14 SER input Serial data input to the 8-bit shift register; input voltage range 0 to 5.5 V (recommended).
15 QA output QA parallel output of the 8-bit storage register, limited to ±25 mA continuous output current (absolute maximum, VO = 0 to VCC).
16 VCC power_in Supply pin; recommended supply range 2 V to 5.5 V.

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
Supply voltage VCC 2 5.5 V 4
High-level input voltage VIH 1.5 V VCC = 2 V 4
High-level input voltage VIH 2.1 V VCC = 3 V 4
High-level input voltage VIH 3.85 V VCC = 5.5 V 4
Low-level input voltage VIL 0.5 V VCC = 2 V 4
Low-level input voltage VIL 0.9 V VCC = 3 V 4
Low-level input voltage VIL 1.65 V VCC = 5.5 V 4
Input voltage VI 0 5.5 V 4
Output voltage VO 0 V maximum is VCC (printed as VCC) 4
High-level output current IOH -50 µA VCC = 2 V 4
High-level output current IOH -4 mA VCC = 3 V ± 0.3 V 4
High-level output current IOH -8 mA VCC = 5.5 V ± 0.5 V 4
Low-level output current IOL 50 µA VCC = 2 V 4
Low-level output current IOL 4 mA VCC = 3 V ± 0.3 V 4
Low-level output current IOL 8 mA VCC = 5.5 V ± 0.5 V 4
Input transition rise and fall time Δt/Δv 100 ns/V VCC = 3 V ± 0.3 V 4
Input transition rise and fall time Δt/Δv 20 ns/V VCC = 5.5 V ± 0.5 V 4
Operating free-air temperature TA -40 125 °C SN74AHC594 variant 4
Supply voltage range VCC -0.5 7 V 4
Input voltage range VI -0.5 7 V 4
Output voltage range VO -0.5 V maximum is VCC + 0.5 V (printed) 4
Input clamp current IIK -20 mA VI < 0 4
Output clamp current IOK -20 20 mA VO < 0 or VO > VCC 4
Continuous output current IO -25 25 mA VO = 0 to VCC 4
Continuous current through VCC or GND -75 75 mA 4
Storage temperature range Tstg -65 150 °C 4
Electrostatic discharge, human body model V(ESD) 0 2000 V HBM, ANSI/ESDA/JEDEC JS-001, all pins 4
Electrostatic discharge, charged device model V(ESD) 0 1000 V CDM, JESD22-C101, all pins 4
High-level output voltage VOH 1.9 2 V IOH = -50 µA, VCC = 2 V 5
High-level output voltage VOH 2.9 3 V IOH = -50 µA, VCC = 3 V 5
High-level output voltage VOH 4.4 4.5 V IOH = -50 µA, VCC = 4.5 V 5
High-level output voltage VOH 2.48 V IOH = -4 mA, VCC = 3 V 5
High-level output voltage VOH 3.8 V IOH = -8 mA, VCC = 4.5 V, QA-QH 5
Low-level output voltage VOL 0.1 V IOL = 50 µA, VCC = 2 V 5
Low-level output voltage VOL 0.44 V IOL = 4 mA, VCC = 3 V 5
Input leakage current II -1 1 µA VCC = 0 to 5.5 V, VI = 5.5 V or GND 5
Supply current ICC 4 40 µA VI = VCC or GND, IO = 0, VCC = 5.5 V 5
Input capacitance Ci 2 10 pF VI = VCC or GND, VCC = 5 V 5
Junction-to-ambient thermal resistance RθJA 47.5 °C/W N (PDIP-16) package 5
Junction-to-case (top) thermal resistance RθJC(top) 34.9 °C/W N (PDIP-16) package 5
Junction-to-board thermal resistance RθJB 27.5 °C/W N (PDIP-16) package 5
Junction-to-top characterization parameter ψJT 19.8 °C/W N (PDIP-16) package 5
Junction-to-board characterization parameter ψJB 27.4 °C/W N (PDIP-16) package 5

CAD (KiCad official)

  • Symbol: SN74AHC594N
  • Footprint: Package_DIP:DIP-16_W7.62mm
  • 3D model: PDIP-16 (KiCad packages3D, STEP)
  • 3D model files: sn74ahc594n-etched.step / sn74ahc594n-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ahc594n.step / sn74ahc594n.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (34 pp, sha256 224b9baaab57a20d, retrieved 2026-10-31, 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