component
CTM8251KAD
Public Made by Adomby adom
VISOM CAN Bus Modules, DIP-12. 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
markdownCTM8251KAD
VISOM · CAN Bus Modules · DIP-12
CTM8251KAD from VISOM, in a DIP-12. 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 | VCC | power_in | Positive power supply input, 3.15~3.45 VDC (3.3 V nominal) for CTM8251KAD; no reverse-polarity protection. |
| 2 | GND | power_in | Power supply input ground. |
| 3 | RXD1 | output | Receive data output of CAN channel 1, 3.3 V UART level for the KAD, VOL max 0.4 V and VOH min VCC-0.4 V at 4 mA. |
| 4 | TXD1 | input | Transmit data input of CAN channel 1, 3.3 V UART level with VIH min 0.7VCC and VIL max 0.3VCC. |
| 5 | RXD2 | output | Receive data output of CAN channel 2, 3.3 V UART level for the KAD, VOL max 0.4 V and VOH min VCC-0.4 V at 4 mA. |
| 6 | TXD2 | input | Transmit data input of CAN channel 2, 3.3 V UART level with VIH min 0.7VCC and VIL max 0.3VCC. |
| 7 | CANH2 | bidirectional | CAN bus high line of channel 2, bus pin withstand -27 V to +40 V. |
| 8 | CANL2 | bidirectional | CAN bus low line of channel 2, bus pin withstand -27 V to +40 V. |
| 9 | CANG2 | passive | Isolated power output ground for CAN channel 2; leave floating if unused. |
| 10 | CANH1 | bidirectional | CAN bus high line of channel 1, bus pin withstand -27 V to +40 V. |
| 11 | CANL1 | bidirectional | CAN bus low line of channel 1, bus pin withstand -27 V to +40 V. |
| 12 | CANG1 | passive | Isolated power output ground for CAN channel 1; leave floating if unused. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | VISOM |
| Package | DIP-12 |
| Category | IoT/Communication Modules |
| Pins | 12 |
CAD (KiCad official)
- Symbol:
CTM8251KAD - Footprint:
Package_DIP:DIP-12_W7.62mm - 3D model: DIP-12 (KiCad packages3D, STEP)
- 3D model files:
ctm8251kad-etched.step/ctm8251kad-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ctm8251kad.step/ctm8251kad.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: VISOM datasheet (5 pp, sha256
250dbd57c05032bb, retrieved 2026-10-22, 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 0.3, primaryclaude-sonnet-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).