component
MC8721C
Public Made by Adomby adom
GATEMODE Interface - Specialized, SOP-8. 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
markdownMC8721C
GATEMODE · Interface - Specialized · SOP-8
MC8721C from GATEMODE, in a SOP-8. 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 | VB | power_in | Bus voltage input pin accepting 18V to 45V for M-Bus receiver operation. |
| 2 | RIDD | input | Bus current adjustment input pin; external resistor RRIDD (20kΩ to 200kΩ recommended) determines static bias current. |
| 3 | SC | passive | Receive demodulation capacitor connection pin; 1µF capacitor required for proper signal detection. |
| 4 | STC | power_out | 5V regulator output pin providing 5.0V to 5.5V with up to 30mA available drive current. |
| 5 | TX | output | M-Bus serial data output pin with 3.3V logic levels (low 0V-0.3V, high 3.2V-3.4V). |
| 6 | VDD | power_out | 3.3V regulator output pin providing 3.2V to 3.4V with up to 30mA available drive current. |
| 7 | RX | input | M-Bus serial data input pin accepting 0V to 5.5V input range with 3.3V default logic levels. |
| 8 | GND | power_in | Ground connection pin serving as voltage reference for all circuit voltages. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GATEMODE |
| Package | SOP-8 |
| Category | Interface |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
MC8721C - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
mc8721c-etched.step/mc8721c-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mc8721c.step/mc8721c.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GATEMODE datasheet (10 pp, sha256
015f315b1b66c8e9, retrieved 2026-09-22, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).