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TD522DCAN

VISOM · CAN Bus Modules · DIP-12

TD522DCAN 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 Power supply input (positive); for the TD522DCAN it must be 5 V nominal, within 4.75 V to 5.25 V, and the module has no reverse-polarity protection.
2 GND power_in Power supply input ground; reversing the supply polarity causes irreversible damage to the module.
3 RXD1 output Channel 1 receive data output to the host MCU/CAN controller at 5 V logic level (TD522DCAN), with output current up to 10 mA.
4 TXD1 input Channel 1 transmit data input from the host MCU/CAN controller at 5 V logic level, with VIH of 0.7VCC to VCC+0.5 V, VIL of 0 to 0.3VCC, and drive current of 2 mA.
5 RXD2 output Channel 2 receive data output to the host MCU/CAN controller at 5 V logic level (TD522DCAN), with output current up to 10 mA.
6 TXD2 input Channel 2 transmit data input from the host MCU/CAN controller at 5 V logic level, with VIH of 0.7VCC to VCC+0.5 V, VIL of 0 to 0.3VCC, and drive current of 2 mA.
7 CANH2 bidirectional Channel 2 CAN high bus line conforming to ISO 11898, with bus-pin maximum voltage rating of -27 V to +40 V and transient voltage of -100 V to +100 V.
8 CANL2 bidirectional Channel 2 CAN low bus line conforming to ISO 11898, with bus-pin maximum voltage rating of -27 V to +40 V and transient voltage of -100 V to +100 V.
9 CANG2 power_out Isolated power supply output ground for channel 2; it may be left floating when unused, per the datasheet's usage note.
10 CANH1 bidirectional Channel 1 CAN high bus line conforming to ISO 11898, with bus-pin maximum voltage rating of -27 V to +40 V and transient voltage of -100 V to +100 V.
11 CANL1 bidirectional Channel 1 CAN low bus line conforming to ISO 11898, with bus-pin maximum voltage rating of -27 V to +40 V and transient voltage of -100 V to +100 V.
12 CANG1 power_out Isolated power supply output ground for channel 1; it may be left floating when unused, per the datasheet's usage note.

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 (TD522DCAN) -0.7 5 7 V 2
Input voltage VCC (TD522DCAN) VCC 4.75 5 5.25 V 2
TXD logic low input voltage VIL 0 V 2
RXD logic low output voltage VOL 0.2 0.4 V IRXD=4mA 2
CANH dominant output voltage V(OD)CANH 2.75 3.5 4.5 V 2
CANL dominant output voltage V(OD)CANL 0.5 1.5 2.25 V 2
CANH recessive output voltage V(OR)CANH 2 2.5 3 V 2
CANL recessive output voltage V(OR)CANL 2 2.5 3 V 2
Differential output dominant (logic 0) Vdiff(d) 1.5 2 3 V 2
Differential output recessive (logic 1) Vdiff(r) -0.05 0 0.05 V 2
Bus pin maximum withstand voltage Vx -27 40 V 2
Bus transient voltage Vtrt -100 100 2
Bus pin leakage current -10 10 μA VCC=0V, VCANH/L=5V 2
Isolation voltage input-output 2.5 KVDC 1 min test, leakage <5mA 3
Isolation voltage between two outputs 1.5 KVDC 1 min test, leakage <5mA 3
Operating temperature range -40 85 ℃ output at full load 3
Storage temperature -55 125 ℃ 3
Storage humidity 95 % non-condensing 3
Case temperature rise during operation 20 ℃ 3
TXD propagation delay tT 80 ns 3
RXD propagation delay tR 130 ns 3
Loop delay tPD(TXD-RXD) 210 250 ns 3
TXD dominant timeout time Tto(dom)TXD 2.5 16 ms 3
Pin soldering temperature, hand soldering 370 ℃ hand soldering @3~5 s 2
Pin soldering temperature, wave soldering 265 ℃ wave soldering @5~10 s 2

CAD (KiCad official)

  • Symbol: TD522DCAN
  • Footprint: Package_DIP:DIP-12_W7.62mm
  • 3D model: DIP-12 (KiCad packages3D, STEP)
  • 3D model files: td522dcan-etched.step / td522dcan-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); td522dcan.step / td522dcan.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: VISOM datasheet (5 pp, sha256 f91c3543dfc21849, retrieved 2026-10-24, 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, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF