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SN74ALS38BN

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

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SN74ALS38BN

Texas Instruments · Gates · PDIP-14

SN74ALS38BN 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 1A input Input A of NAND buffer gate 1, forming Y = A • B with input 1B.
2 1B input Input B of NAND buffer gate 1, forming Y = A • B with input 1A.
3 1Y output Open-collector output of gate 1, which requires an external pullup resistor to operate correctly.
4 2A input Input A of NAND buffer gate 2, forming Y = A • B with input 2B.
5 2B input Input B of NAND buffer gate 2, forming Y = A • B with input 2A.
6 2Y output Open-collector output of gate 2, which requires an external pullup resistor to operate correctly.
7 GND power_in Ground reference for the device.
8 3Y output Open-collector output of gate 3, which requires an external pullup resistor to operate correctly.
9 3A input Input A of NAND buffer gate 3, forming Y = A • B with input 3B.
10 3B input Input B of NAND buffer gate 3, forming Y = A • B with input 3A.
11 4Y output Open-collector output of gate 4, which requires an external pullup resistor to operate correctly.
12 4A input Input A of NAND buffer gate 4, forming Y = A • B with input 4B.
13 4B input Input B of NAND buffer gate 4, forming Y = A • B with input 4A.
14 VCC power_in Positive supply voltage pin for the device.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package PDIP-14
Category Logic 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 7 V 2
Input voltage VI 7 V 2
Storage temperature range -65 150 °C 2
Operating free-air temperature range (SN74ALS38B) TA 0 70 °C 2
Supply voltage VCC 4.5 5 5.5 V 2
High-level input voltage VIH 2 V 2
Low-level input voltage VIL 0.8 V 2
High-level output voltage VOH 5.5 V 2
Low-level output current IOL 24 mA 2
Input clamp voltage VIK -1.5 V VCC = 4.5 V, II = -18 mA 2
Low-level output voltage VOL 0.25 0.4 V VCC = 4.5 V, IOL = 12 mA 2
Low-level output voltage VOL 0.35 0.5 V VCC = 4.5 V, IOL = 24 mA 2
Input current at maximum input voltage II 0.1 mA VCC = 5.5 V, VI = 7 V 2
High-level input current IIH 20 µA VCC = 5.5 V, VI = 2.7 V 2
Low-level input current IIL -0.1 mA VCC = 5.5 V, VI = 0.4 V 2
High-level output current IOH 0.1 mA VCC = 4.5 V, VOH = 5.5 V 2
Supply current, outputs high ICCH 0.86 1.6 mA VCC = 5.5 V, VI = 0 2
Supply current, outputs low ICCL 4.8 7.8 mA VCC = 5.5 V, VI = 4.5 V 2
Propagation delay time, low-to-high-level output tPLH 10 33 ns VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX (A or B to Y) 2
Propagation delay time, high-to-low-level output tPHL 1 12 ns VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX (A or B to Y) 2

CAD (KiCad official)

  • Symbol: SN74ALS38BN
  • Footprint: Package_DIP:DIP-14_W7.62mm
  • 3D model: PDIP-14 (KiCad packages3D, STEP)
  • 3D model files: sn74als38bn-etched.step / sn74als38bn-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74als38bn.step / sn74als38bn.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (17 pp, sha256 504e2d084f2bdf19, retrieved 2026-10-28, 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