component
SN74HCS138DR
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 5d ago |
| viewers | 5d ago |
| package.json | 5d ago |
| page.json | 5d ago |
| README.md | 5d ago |
| sn74hcs138dr-etched.glb | 5d ago |
| sn74hcs138dr-etched.step | 5d ago |
| sn74hcs138dr-hero.glb | 5d ago |
| sn74hcs138dr-hero.overlay.json | 5d ago |
| sn74hcs138dr.glb | 5d ago |
| sn74hcs138dr.kicad_mod | 5d ago |
| sn74hcs138dr.kicad_sym | 5d ago |
| sn74hcs138dr.lbr | 5d ago |
| sn74hcs138dr.step | 5d ago |
SN74HCS138DR
Texas Instruments · Signal Switches, Multiplexers, Decoders · SOIC-16
SN74HCS138DR from Texas Instruments, in a SOIC-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 | A0 | input | Address select 0 input, one of the three binary address inputs that select which output goes low. |
| 2 | A1 | input | Address select 1 input, one of the three binary address inputs that select which output goes low. |
| 3 | A2 | input | Address select 2 input, one of the three binary address inputs that select which output goes low. |
| 4 | G0 | input | Strobe input, active low; when the outputs are gated by any strobe input, all outputs are forced high. |
| 5 | G1 | input | Strobe input, active low; when the outputs are gated by any strobe input, all outputs are forced high. |
| 6 | G2 | input | Strobe input (standard active-high strobe); when the outputs are gated by any strobe input, all outputs are forced high. |
| 7 | Y7 | output | Decoder output 7; low only when it is the selected output and the outputs are not disabled by the strobe inputs, otherwise high. |
| 8 | GND | power_in | Ground reference pin. |
| 9 | Y6 | output | Decoder output 6; low only when it is the selected output and the outputs are not disabled by the strobe inputs, otherwise high. |
| 10 | Y5 | output | Decoder output 5; low only when it is the selected output and the outputs are not disabled by the strobe inputs, otherwise high. |
| 11 | Y4 | output | Decoder output 4; low only when it is the selected output and the outputs are not disabled by the strobe inputs, otherwise high. |
| 12 | Y3 | output | Decoder output 3; low only when it is the selected output and the outputs are not disabled by the strobe inputs, otherwise high. |
| 13 | Y2 | output | Decoder output 2; low only when it is the selected output and the outputs are not disabled by the strobe inputs, otherwise high. |
| 14 | Y1 | output | Decoder output 1; low only when it is the selected output and the outputs are not disabled by the strobe inputs, otherwise high. |
| 15 | Y0 | output | Decoder output 0; low only when it is the selected output and the outputs are not disabled by the strobe inputs, otherwise high. |
| 16 | VCC | power_in | Positive supply pin; recommended supply range is 2 V to 6 V (absolute maximum 7 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Logic |
| 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 | 6 | V | 4 | |
| Ambient temperature | TA | -40 | 125 | °C | 4 | ||
| Input voltage | VI | 0 | V | max = VCC | 4 | ||
| Output voltage | VO | 0 | V | max = VCC | 4 | ||
| Supply voltage | VCC | -0.5 | 7 | V | 4 | ||
| Input clamp current | IIK | -20 | 20 | mA | VI < -0.5 V or VI > VCC + 0.5 V | 4 | |
| Output clamp current | IOK | -20 | 20 | mA | VI < -0.5 V or VI > VCC + 0.5 V | 4 | |
| Continuous output current | IO | -35 | 35 | mA | VO = 0 to VCC | 4 | |
| Continuous current through VCC or GND | -70 | 70 | mA | 4 | |||
| Junction temperature | TJ | 150 | °C | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| Positive switching threshold | VT+ | 0.7 | 1.5 | V | VCC = 2 V | 5 | |
| Positive switching threshold | VT+ | 1.7 | 3.15 | V | VCC = 4.5 V | 5 | |
| Positive switching threshold | VT+ | 2.1 | 4.2 | V | VCC = 6 V | 5 | |
| Negative switching threshold | VT- | 0.3 | 1 | V | VCC = 2 V | 5 | |
| Negative switching threshold | VT- | 0.9 | 2.2 | V | VCC = 4.5 V | 5 | |
| Negative switching threshold | VT- | 1.2 | 3 | V | VCC = 6 V | 5 | |
| Hysteresis (VT+ - VT-) | ΔVT | 0.2 | 1 | V | VCC = 2 V | 5 | |
| Hysteresis (VT+ - VT-) | ΔVT | 0.4 | 1.4 | V | VCC = 4.5 V | 5 | |
| Hysteresis (VT+ - VT-) | ΔVT | 0.6 | 1.6 | V | VCC = 6 V | 5 | |
| High-level output voltage | VOH | 4 | 4.3 | V | IOH = -6 mA, VCC = 4.5 V | 5 | |
| High-level output voltage | VOH | 5.4 | 5.75 | V | IOH = -7.8 mA, VCC = 6 V | 5 | |
| Low-level output voltage | VOL | 0.002 | 0.1 | V | IOL = 20 µA, VCC = 2 V to 6 V | 5 | |
| Low-level output voltage | VOL | 0.18 | 0.3 | V | IOL = 6 mA, VCC = 4.5 V | 5 | |
| Low-level output voltage | VOL | 0.22 | 0.33 | V | IOL = 7.8 mA, VCC = 6 V | 5 | |
| Input leakage current | II | -1000 | 100 | 1000 | nA | VI = VCC or 0, VCC = 6 V | 5 |
| Supply current | ICC | 0.1 | 2 | µA | VI = VCC or 0, IO = 0, VCC = 6 V | 5 | |
| Junction-to-ambient thermal resistance (D, SOIC) | RθJA | 122.2 | °C/W | D (SOIC) 16-pin package | 5 | ||
| Junction-to-case (top) thermal resistance (D, SOIC) | RθJC(top) | 80.9 | °C/W | D (SOIC) 16-pin package | 5 | ||
| Junction-to-board thermal resistance (D, SOIC) | RθJB | 80.6 | °C/W | D (SOIC) 16-pin package | 5 | ||
| Junction-to-top characterization parameter (D, SOIC) | ΨJT | 40.4 | °C/W | D (SOIC) 16-pin package | 5 | ||
| Junction-to-board characterization parameter (D, SOIC) | ΨJB | 80.3 | °C/W | D (SOIC) 16-pin package | 5 |
CAD (KiCad official)
- Symbol:
SN74HCS138DR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
sn74hcs138dr-etched.step/sn74hcs138dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hcs138dr.step/sn74hcs138dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (33 pp, sha256
fcab8263365237de, retrieved 2026-10-18, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).