component
CD40147BM
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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCD40147BM
Texas Instruments · Signal Switches, Multiplexers, Decoders · SOIC-16
CD40147BM 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 | 4 | input | Data input line 4 of the ten priority-encoded inputs (0-9), buffered, active low. |
| 2 | 5 | input | Data input line 5 of the ten priority-encoded inputs (0-9), buffered, active low. |
| 3 | 6 | input | Data input line 6 of the ten priority-encoded inputs (0-9), buffered, active low. |
| 4 | 7 | input | Data input line 7 of the ten priority-encoded inputs (0-9), buffered, active low. |
| 5 | 8 | input | Data input line 8 of the ten priority-encoded inputs (0-9), buffered, active low. |
| 6 | C | output | BCD output C (weight 2^2, the 4 line), buffered, and can drive one TTL low-power Schottky load. |
| 7 | B | output | BCD output B (weight 2^1, the 2 line), buffered, and can drive one TTL low-power Schottky load. |
| 8 | VSS | power_in | Ground (VSS) supply reference; all four outputs go to logic 1 (VSS) when all input lines are logic 0. |
| 9 | A | output | BCD output A (weight 2^0, the 1 line), buffered, and can drive one TTL low-power Schottky load. |
| 10 | 9 | input | Data input line 9, the highest-priority input, buffered, active low. |
| 11 | 1 | input | Data input line 1 of the ten priority-encoded inputs (0-9), buffered, active low. |
| 12 | 2 | input | Data input line 2 of the ten priority-encoded inputs (0-9), buffered, active low. |
| 13 | 3 | input | Data input line 3 of the ten priority-encoded inputs (0-9), buffered, active low. |
| 14 | D | output | BCD output D (weight 2^3, the 8 line), buffered, and can drive one TTL low-power Schottky load. |
| 15 | 0 | input | Data input line 0, lowest priority; the device is functionally similar to the TTL54/74147 if this pin is tied low. |
| 16 | VDD | power_in | Positive supply; recommended range 3 V to 18 V, absolute maximum -0.5 V to +20 V referenced to VSS. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
CD40147BM - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
cd40147bm-etched.step/cd40147bm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cd40147bm.step/cd40147bm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (8 pp, sha256
01df76dccadc6024, retrieved 2026-10-01, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).