component
CD74HC4046AM
Public Made by Adomby adom
Texas Instruments Clock Generators, PLLs, Frequency Synthesizers, SOIC-16. Datasheet-verified pinout, 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
markdownCD74HC4046AM
Texas Instruments · Clock Generators, PLLs, Frequency Synthesizers · SOIC-16
CD74HC4046AM from Texas Instruments, in a SOIC-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | PCPOUT | output | Phase Comparator Pulse Output; indicates locked condition when HIGH. |
| 2 | PC1OUT | output | Phase Comparator 1 Output from Exclusive-OR logic. |
| 3 | COMPIN | input | Comparator Input common to all three phase comparators. |
| 4 | VCOOUT | output | VCO Output with 50% duty factor. |
| 5 | INH | input | Inhibit Input; LOW enables VCO and demodulator, HIGH disables for low standby power. |
| 6 | C1A | passive | Capacitor C1 Connection A; connect external frequency-setting capacitor between C1A and C1B. |
| 7 | C1B | passive | Capacitor C1 Connection B; connect external frequency-setting capacitor between C1A and C1B. |
| 8 | GND | power_in | Ground (0V reference). |
| 9 | VCOIN | input | VCO Input control voltage; valid operating range 1.1V to VCC-0.9V. |
| 10 | DEMOUT | output | Demodulator Output; high impedance if unused, load with resistor RS greater than 300kΩ if used. |
| 11 | R1 | passive | Resistor R1 Connection; external resistor 3kΩ to 300kΩ from R1 to GND sets VCO frequency range. |
| 12 | R2 | passive | Resistor R2 Connection; external resistor 3kΩ to 300kΩ from R2 to GND provides frequency offset. |
| 13 | PC2OUT | tri_state | Phase Comparator 2 Output from edge-triggered phase and frequency detector; three-state output. |
| 14 | SIGIN | input | Signal Input common to all three phase comparators; DC or AC coupled operation. |
| 15 | PC3OUT | output | Phase Comparator 3 Output from positive edge-triggered RS flip-flop. |
| 16 | VCC | power_in | Positive Supply Voltage; HC types operate from 2V to 6V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Clock/Timing |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
CD74HC4046AM - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
cd74hc4046am-etched.step/cd74hc4046am-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cd74hc4046am.step/cd74hc4046am.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (36 pp, sha256
047ac408a2e3bcfc, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).