Paste this into Claude Code (VS Code panel, Adom editor, or terminal) to install:
Search the Adom Wiki for the library component "74HC138" (slug: 74hc138) at https://wiki-ufypy5dpx93o.adom.cloud/wiki/libraries/74hc138. Pull down the KiCad symbol, footprint, and 3D model files from the wiki page's assets. Install them into my current KiCad project and register in sym-lib-table and fp-lib-table. If the page has a datasheet URL, save that too.
The 74HC138 is a 3-to-8 line decoder/demultiplexer with active-low outputs. Commonly used for address decoding in memory and I/O systems, and for expanding chip select signals.
Electrical Specifications
Type: 3-to-8 line decoder/demultiplexer
Supply Voltage: 2V–6V
Input Voltage: CMOS compatible
Propagation Delay: 19ns @ 4.5V
Output Current: ±25mA per output
Quiescent Current: 8µA
Package: DIP-16 / SOIC-16
Pin Configuration
Package: DIP-16
Pin 1: A0 — Address input A0 (LSB)
Pin 2: A1 — Address input A1
Pin 3: A2 — Address input A2 (MSB)
Pin 4: E1 — Enable input (active low)
Pin 5: E2 — Enable input (active low)
Pin 6: E3 — Enable input (active high)
Pin 7: Y7 — Output Y7 (active low)
Pin 8: GND — Ground
Pin 9: Y6 — Output Y6 (active low)
Pin 10: Y5 — Output Y5 (active low)
Pin 11: Y4 — Output Y4 (active low)
Pin 12: Y3 — Output Y3 (active low)
Pin 13: Y2 — Output Y2 (active low)
Pin 14: Y1 — Output Y1 (active low)
Pin 15: Y0 — Output Y0 (active low)
Pin 16: VCC — Positive supply voltage
Sub-Skills
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A manufacturer’s configuration tool for a motor controller
A community-written design guide for an amplifier circuit
An automated test/validation script for a sensor module
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