component
TD322DCAN
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
markdownTD322DCAN
VISOM · CAN Bus Modules · DIP-12
TD322DCAN 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 for TD322DCAN (3.3 V nominal), with no reverse-polarity protection. |
| 2 | GND | power_in | Power supply input ground. |
| 3 | RXD1 | output | Receive pin of channel 1 (3.3 V UART level for TD322DCAN, VOH min VCC-0.4 V and VOL max 0.4 V at 4 mA). |
| 4 | TXD1 | input | Transmit pin of channel 1 (3.3 V UART level for TD322DCAN, VIH min 0.7VCC and VIL max 0.3VCC). |
| 5 | RXD2 | output | Receive pin of channel 2 (3.3 V UART level for TD322DCAN, VOH min VCC-0.4 V and VOL max 0.4 V at 4 mA). |
| 6 | TXD2 | input | Transmit pin of channel 2 (3.3 V UART level for TD322DCAN, VIH min 0.7VCC and VIL max 0.3VCC). |
| 7 | CANH2 | bidirectional | CANH bus pin of channel 2, with bus pin maximum voltage -27 to +40 V. |
| 8 | CANL2 | bidirectional | CANL bus pin of channel 2, with bus pin maximum voltage -27 to +40 V. |
| 9 | CANG2 | power_out | Isolated power output ground of channel 2; leave floating when unused. |
| 10 | CANH1 | bidirectional | CANH bus pin of channel 1, with bus pin maximum voltage -27 to +40 V. |
| 11 | CANL1 | bidirectional | CANL bus pin of channel 1, with bus pin maximum voltage -27 to +40 V. |
| 12 | CANG1 | power_out | Isolated power output ground of channel 1; leave floating when unused. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | VISOM |
| Package | DIP-12 |
| Category | IoT/Communication Modules |
| Pins | 12 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input voltage range (absolute maximum) | -0.7 | 3.3 | 5 | V dc | TD322DCAN | 2 | |
| Input voltage | VCC | 3.15 | 3.3 | 3.45 | VDC | TD322DCAN | 2 |
| Hand soldering temperature | 370 | ℃ | 手工焊接@3~5 秒 | 2 | |||
| Wave soldering temperature | 265 | ℃ | 波峰焊焊接@5~10 秒 | 2 | |||
| Quiescent current | 63 | mA | TD322DCAN, typ | 2 | |||
| Maximum operating current | 250 | mA | TD322DCAN | 2 | |||
| RXD low level output voltage | VOL | 0.2 | 0.4 | V | IRXD=4mA | 2 | |
| TXD drive current | ITXD | 2 | mA | 2 | |||
| CANH dominant output voltage | V(OD)CANH | 2.75 | 3.5 | 4.5 | VDC | 显性电平（逻辑 0） | 2 |
| CANL dominant output voltage | V(OD)CANL | 0.5 | 1.5 | 2.25 | VDC | 显性电平（逻辑 0） | 2 |
| CANH recessive output voltage | V(OR)CANH | 2 | 2.5 | 3 | VDC | 逻辑电平（逻辑 1） | 2 |
| CANL recessive output voltage | V(OR)CANL | 2 | 2.5 | 3 | VDC | 逻辑电平（逻辑 1） | 2 |
| Differential voltage dominant | Vdiff(d) | 1.5 | 2 | 3 | VDC | 显性(逻辑 0) | 2 |
| Differential voltage recessive | Vdiff(r) | -0.05 | 0 | 0.05 | VDC | 隐性(逻辑 1) | 2 |
| Bus pin maximum withstand voltage | Vx | -27 | 40 | V | 2 | ||
| Bus transient voltage | Vtrt | -100 | 100 | V | 2 | ||
| Bus pin leakage current | -10 | 10 | μA | VCC=0V, VCANH/L=5V | 2 | ||
| TXD transmit delay | tT | 80 | ns | 3 | |||
| RXD receive delay | tR | 130 | ns | 3 | |||
| Loop delay | tPD(TXD-RXD) | 210 | 250 | ns | 3 | ||
| TXD dominant timeout | Tto(dom)TXD | 2.5 | 16 | ms | 3 | ||
| Operating temperature range | -40 | 85 | ℃ | 输出为满载 | 3 | ||
| Storage temperature | -55 | 125 | ℃ | 3 | |||
| Storage humidity | 95 | % | 无凝结 | 3 | |||
| Case temperature rise in operation | 20 | ℃ | 3 |
CAD (KiCad official)
- Symbol:
TD322DCAN - Footprint:
Package_DIP:DIP-12_W7.62mm - 3D model: DIP-12 (KiCad packages3D, STEP)
- 3D model files:
td322dcan-etched.step/td322dcan-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);td322dcan.step/td322dcan.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: VISOM datasheet (5 pp, sha256
f91c3543dfc21849, retrieved 2026-10-26, 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).