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SN75ALS176BDR

Public Made by Adom

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Texas Instruments RS-485/RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentinterface icssn75als176bdrfactory-2.0.0extractor-text

Verified SN75ALS176BDR

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, 8 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: SN75ALS176BDR · SOIC-8 · 8 pins
  • ✓copper: 8 copper pads, none touching another net
  • ✓datasheet: all 8 pin names found in the 26-page datasheet
  • ✓distributor: lcsc C7678, digikey 296-14965-2-ND, mouser 595-SN75ALS176BDR
  • ✓family: SOIC-8_3.9x4.9mm_P1.27mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-e1wm8spz/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.22)
  • ✓pads: 8 pins = 8 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 8 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ sn75als176bdr.kicad_sym✓ sn75als176bdr.kicad_mod✓ sn75als176bdr.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 9d ago
viewers sn75als176bdr: viewers · Ray 9d ago
package.json Publish 0.1.0 · Ray 9d ago
page.json Set visibility: public · Ray 9d ago
README.md Publish 0.1.0 · Ray 9d ago
sn75als176bdr-etched.glb Publish 0.1.0 · Ray 9d ago
sn75als176bdr-etched.step sn75als176bdr: factory component page (tier=mfr) · Ray 9d ago
sn75als176bdr-hero.glb sn75als176bdr: hero GLB from the etched model (keeps the MPN mark) · Ray 9d ago
sn75als176bdr-hero.overlay.json Publish 0.1.0 · Ray 9d ago
sn75als176bdr.glb Publish 0.1.0 · Ray 9d ago
sn75als176bdr.kicad_mod Publish 0.1.0 · Ray 9d ago
sn75als176bdr.kicad_sym Publish 0.1.0 · Ray 9d ago
sn75als176bdr.lbr Publish 0.1.0 · Ray 9d ago
sn75als176bdr.step Publish 0.1.0 · Ray 9d ago
verification.json Verified: Published by the parts factory: tier mfr, 8 pins · Ray 9d ago

SN75ALS176BDR

Texas Instruments · RS-485/RS-422 ICs · SOIC-8

SN75ALS176BDR from Texas Instruments, in a SOIC-8. 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 R output Receive data output, 3-state, high-impedance when RE is high.
2 RE input Receiver enable, active low; high level puts R in high impedance.
3 DE input Driver enable, active high; low level puts driver outputs A and B in high impedance.
4 D input Driver data input.
5 GND power_in Local device ground.
6 A bidirectional Driver output or receiver input, complementary to B; bus voltage range -7 V to 12 V.
7 B bidirectional Driver output or receiver input, complementary to A; bus voltage range -7 V to 12 V.
8 VCC power_in 4.75-V to 5.25-V supply.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Interface ICs
Pins 8

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 7 V 4
Voltage range at any bus terminal -7 12 V 4
Enable input voltage VI 5.5 V 4
Lead temperature 260 ℃ 1,6 mm (1/16 inch) from case for 10 seconds 4
Storage temperature range Tstg -65 150 ℃ 4
Supply voltage VCC 4.75 5 5.25 V 4
Input voltage at any bus terminal VI or VIC -7 12 V separately or common mode 4
High-level input voltage VIH 2 V D, DE, and RE 4
Low-level input voltage VIL 0.8 V D, DE, and RE 4
Differential input voltage VID -12 12 V 4
High-level output current, driver IOH -60 mA Driver 4
High-level output current, receiver IOH -400 μA Receiver 4
Low-level output current, driver IOL 60 mA Driver 4
Low-level output current, receiver IOL 8 mA Receiver 4
Operating free-air temperature TA 0 70 °C SN75ALS176 series 4
Junction-to-ambient thermal resistance RθJA 110 °C/W D (SOIC) SN75 devices, 8-pin 4
Junction-to-case (top) thermal resistance RθJC(top) 44.1 °C/W D (SOIC) SN75 devices, 8-pin 4
Junction-to-board thermal resistance RθJB 53.5 °C/W D (SOIC) SN75 devices, 8-pin 4
Junction-to-top characterization parameter ψJT 4.8 °C/W D (SOIC) SN75 devices, 8-pin 4
Junction-to-board characterization parameter ψJB 52.7 °C/W D (SOIC) SN75 devices, 8-pin 4
Driver input clamp voltage VIK -1.5 V II = -18 mA 5
Driver output voltage VO 0 6 V IO = 0 5
Driver differential output voltage /VOD1/ 1.5 6 V IO = 0 5
Driver differential output voltage VOD2 1.5 2.5 5 V RL = 54 Ω See Figure 6-1 5
Driver differential output voltage VOD3 1.5 5 V Vtest = -7 V to 12 V, See Figure 6-2 5
Change in magnitude of differential output voltage Δ/VOD/ -0.2 0.2 V RL = 54 Ω or 100 Ω See Figure 6-1 5
Common-mode output voltage VOC -1 3 V RL = 54 Ω or 100 Ω See Figure 6-1 5
Change in magnitude of common-mode output voltage Δ/VOC/ -0.2 0.2 V RL = 54 Ω or 100 Ω See Figure 6-1 5
Driver output current, outputs disabled IO 1 mA Outputs disabled, VO = 12 V 5
Driver output current, outputs disabled IO -0.8 mA Outputs disabled, VO = -7 V 5
Driver high-level input current IIH 20 μA VI = 2.4 V 5
Driver low-level input current IIL -400 μA VI = 0.4 V 5
Driver short-circuit output current IOS -250 mA VO = -6 V SN75ALS176 5
Driver short-circuit output current IOS -150 mA VO = 0 5
Driver short-circuit output current IOS 250 mA VO = VCC 5
Supply current, outputs enabled ICC 23 30 mA No load, Outputs enabled 5
Supply current, outputs disabled ICC 19 26 mA No load, Outputs disabled 5
Driver differential output delay time td(OD) 5 8 10 ns ’ALS176B, RL = 54 Ω CL = 50 pF, See Figure 6-3 6
Driver pulse skew tsk(p) 0 2 ns RL = 54 Ω CL = 50 pF, See Figure 6-3 6
Driver pulse skew limit tsk(lim) 5 ns ’ALS176B, RL = 54 Ω CL = 50 pF, See Figure 6-3 6
Driver differential output transition time tt(OD) 8 ns RL = 54 Ω CL = 50 pF, See Figure 6-3 6
Driver output enable time to high level tPZH 23 50 ns RL = 110 Ω CL = 50 pF, See Figure 6-4 6
Driver output enable time to low level tPZL 14 20 ns RL = 110 Ω CL = 50 pF, See Figure 6-5 6
Driver output disable time from high level tPHZ 20 35 ns RL = 110 Ω CL = 50 pF, See Figure 6-4 6
Driver output disable time from low level tPLZ 8 17 ns RL = 110 Ω CL = 50 pF, See Figure 6-5 6
Receiver positive-going input threshold voltage VIT+ 0.2 V VO = 2.7 V, IO = -0.4 mA 7
Receiver negative-going input threshold voltage VIT- -0.2 V VO = 0.5 V, IO = 8 mA 7
Receiver hysteresis voltage Vhys 60 mV VIT+, VIT- 7
Receiver enable-input clamp voltage VIK -1.5 V II = -18 mA 7
Receiver high-level output voltage VOH 2.7 V VID = 200 mV, IOH = -400 mA, See Figure 6-6 7
Receiver low-level output voltage VOL 0.45 V VID = -200 mV, IOL = 8 mA 7
Receiver high-impedance-state output current IOZ -20 20 μA VO = 0.4 V to 2.4 V 7
Receiver line input current VI 1 mA Other input = 0 V, VI = 12 V 7
Receiver line input current VI -0.8 mA Other input = 0 V, VI = -7 V 7
Receiver high-level-enable input current IIH 20 μA VIH = 2.7 V 7
Receiver low-level-enable input current IIL -100 μA VIL = 0.4 V 7
Receiver input resistance rI 12 20 kΩ 7
Receiver short-circuit output current IOS -85 -15 mA VID = 200 mV, VO = 0 7
Receiver propagation time tpd 11.5 13 16.5 ns ’ALS176B, VID = -1.5 V to 1.5 V, CL = 15 pF, See Figure 6-7 8
Receiver pulse skew limit tsk(lim) 5 ns ’ALS176B, RL = 54 Ω, CL = 50 pF, See Figure 6-3 8

CAD (KiCad official)

  • Symbol: SN75ALS176BDR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: sn75als176bdr-etched.step / sn75als176bdr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn75als176bdr.step / sn75als176bdr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (26 pp, sha256 173f362db3d9addb, retrieved 2026-10-31, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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