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SN75C188N

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Texas Instruments Pre-ordered Chips, PDIP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentinterface icssn75c188nfactory-2.0.0extractor-text

Verified SN75C188N

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 14 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: SN75C188N · PDIP-14 · 14 pins
  • ✓copper: 14 copper pads, none touching another net
  • ✓datasheet: all 14 pin names found in the 19-page datasheet
  • ✓distributor: lcsc C1544642, digikey 296-1754-5-ND, mouser 595-SN75C188N
  • ✓family: DIP-14_W7.62mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-n8n493l4/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: 14 pins = 14 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 14 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ sn75c188n.kicad_sym✓ sn75c188n.kicad_mod✓ sn75c188n.step
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Ray Publish 0.1.0 8c0ff3e 10d ago

SN75C188N

Texas Instruments · Pre-ordered Chips · PDIP-14

SN75C188N from Texas Instruments, in a PDIP-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 VCC- power_in Negative supply terminal; recommended range is -4.5 V to -15 V, and an external series diode is needed for protection under power-off fault conditions.
2 1A input Driver 1 input (non-inverting, Y = A) that is CMOS/TTL compatible with VIH minimum 2 V and VIL maximum 0.8 V.
3 1Y output Driver 1 RS-232 line output, current-limited at about 10 mA typical, with output voltage range VCC- - 6 V to VCC+ + 6 V.
4 2A input Driver 2 input for the NAND function Y = AB, CMOS/TTL compatible with VIH minimum 2 V and VIL maximum 0.8 V.
5 2B input Driver 2 second input for the NAND function Y = AB, CMOS/TTL compatible with VIH minimum 2 V and VIL maximum 0.8 V.
6 2Y output Driver 2 RS-232 line output, current-limited at about 10 mA typical, with output voltage range VCC- - 6 V to VCC+ + 6 V.
7 GND power_in Network ground terminal; all voltage values are referenced to this terminal.
8 3Y output Driver 3 RS-232 line output, current-limited at about 10 mA typical, with output voltage range VCC- - 6 V to VCC+ + 6 V.
9 3A input Driver 3 input for the NAND function Y = AB, CMOS/TTL compatible with VIH minimum 2 V and VIL maximum 0.8 V.
10 3B input Driver 3 second input for the NAND function Y = AB, CMOS/TTL compatible with VIH minimum 2 V and VIL maximum 0.8 V.
11 4Y output Driver 4 RS-232 line output, current-limited at about 10 mA typical, with output voltage range VCC- - 6 V to VCC+ + 6 V.
12 4A input Driver 4 input for the NAND function Y = AB, CMOS/TTL compatible with VIH minimum 2 V and VIL maximum 0.8 V.
13 4B input Driver 4 second input for the NAND function Y = AB, CMOS/TTL compatible with VIH minimum 2 V and VIL maximum 0.8 V.
14 VCC+ power_in Positive supply terminal; recommended range is 4.5 V to 15 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package PDIP-14
Category Interface ICs
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+ (recommended) VCC+ 4.5 12 15 V 3
Supply voltage VCC- (recommended), printed MIN/NOM/MAX cells VCC- -4.5 -12 -15 V 3
High-level input voltage VIH 2 V 3
Low-level input voltage VIL 0.8 V 3
Operating free-air temperature TA 0 70 °C 3
Supply voltage VCC+ (absolute maximum) VCC+ 15 V All voltage values with respect to network ground terminal (Note 1) 3
Supply voltage VCC- (absolute maximum) VCC- -15 V All voltage values with respect to network ground terminal (Note 1) 3
Storage temperature range Tstg -65 150 °C 3
Lead temperature 260 °C 1,6 mm (1/16 inch) from case for 10 seconds 3
Continuous total power dissipation, N package 1150 mW N package, TA ≤ 25°C 3
Derating factor above TA = 25°C, N package 9.2 mW/°C N package, above TA = 25°C 3
Power rating at TA = 70°C, N package 736 mW N package, TA = 70°C 3
High-level output voltage (±5 V supplies) VOH 4 V VCC+ = 5 V, VCC- = -5 V, VIL = 0.8 V, RL = 3 kΩ 4
High-level output voltage (±12 V supplies) VOH 10 V VCC+ = 12 V, VCC- = -12 V, VIL = 0.8 V, RL = 3 kΩ 4
Low-level output voltage (±5 V supplies) VOL -4 V VCC+ = 5 V, VCC- = -5 V, VIH = 2 V, RL = 3 kΩ (see Note 2) 4
Low-level output voltage (±12 V supplies) VOL -10 V VCC+ = 12 V, VCC- = -12 V, VIH = 2 V, RL = 3 kΩ (see Note 2) 4
High-level input current IIH 10 µA VI = 5 V 4
Low-level input current IIL -10 µA VI = 0 4
High-level short-circuit output current (negative sign line) IOS(H) -5.5 -10 -19.5 mA VI = 0.8 V, VO = 0 or VCC- 4
Low-level short-circuit output current IOS(L) 5.5 10 19.5 mA VI = 2 V, VO = 0 or VCC+ 4
Output resistance, power off rO 300 Ω VCC+ = 0, VCC- = 0, VI = -2 V to 2 V 4
Supply current from VCC+ (±5 V) ICC+ 90 160 µA VCC+ = 5 V, VCC- = -5 V, all inputs at 2 V or 0.8 V, no load 4
Supply current from VCC+ (±12 V) ICC+ 95 160 µA VCC+ = 12 V, VCC- = -12 V, all inputs at 2 V or 0.8 V, no load 4
Supply current from VCC- (±5 V) ICC- -90 -160 µA VCC+ = 5 V, VCC- = -5 V, all inputs at 2 V or 0.8 V, no load 4
Supply current from VCC- (±12 V) ICC- -95 -160 µA VCC+ = 12 V, VCC- = -12 V, all inputs at 2 V or 0.8 V, no load 4
Propagation delay time, low- to high-level output tPLH 3 µs RL = 3 kΩ, CL = 15 pF, See Figure 1 4
Propagation delay time, high- to low-level output tPHL 3.5 µs RL = 3 kΩ, CL = 15 pF, See Figure 1 4
Transition time, low- to high-level output (10% to 90%) tTLH 0.53 3.2 µs 4
Transition time, high- to low-level output (10% to 90%) tTHL 0.53 3.2 µs 4
Transition time, low- to high-level output (3 V to -3 V) tTLH 1.5 µs RL = 3 kΩ to 7 kΩ, CL = 2500 pF 4
Transition time, high- to low-level output (3 V to -3 V) tTHL 1.5 µs RL = 3 kΩ to 7 kΩ, CL = 2500 pF 4
Output slew rate SR 6 15 30 V/µs RL = 3 kΩ to 7 kΩ, CL = 15 pF 4

CAD (KiCad official)

  • Symbol: SN75C188N
  • Footprint: Package_DIP:DIP-14_W7.62mm
  • 3D model: PDIP-14 (KiCad packages3D, STEP)
  • 3D model files: sn75c188n-etched.step / sn75c188n-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn75c188n.step / sn75c188n.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (19 pp, sha256 25e666607f367cdc, retrieved 2026-10-30, 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