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ncv7341d21r2g

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by Ray

onsemi CAN Controllers, SOIC-14. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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NCV7341D21R2G

onsemi · CAN Controllers · SOIC-14

NCV7341D21R2G from onsemi, in a SOIC-14. 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 TxD input Transmit data input from the CAN controller. Low level drives a dominant state on the bus; has an internal pull-up current so the pin defaults high (recessive) if disconnected. A TxD dominant time-out disables the transmitter after tdom(TxD) = 300-1000 us to prevent bus lockup.
2 GND power_in Ground reference for the device. All voltages in the datasheet are referenced to GND (Pin 2).
3 VCC power_in Supply voltage for the core circuitry and the CAN transceiver output stage. Operating range 4.75 V to 5.25 V; absolute max +7 V.
4 RxD output Receive data output to the CAN controller. Dominant bus state produces a low output; recessive bus state produces a high output. Output levels are referenced to VIO for controller interface flexibility.
5 VIO power_in Supply voltage for the digital interface to the CAN controller / microcontroller, allowing interfacing to controllers with 3 V or 5 V I/O. Operating range 2.8 V to 5.25 V; absolute max +7 V.
6 EN input Enable / mode-control input (together with STB selects Normal, Receive-only, Standby, Go-to-Sleep, or Sleep modes). Has an internal pull-down current so pin defaults low if disconnected. Levels referenced to VIO.
7 INH output High-voltage inhibit output for controlling external voltage regulators. Pulled high (near VBAT, with typ 200 mV drop at 180 uA) in Normal/Receive-only/Standby/Go-to-Sleep modes; floats in Sleep mode to switch off the external regulators. Rated up to VBAT+0.3 V.
8 ERR output Active-low digital output that indicates internal flag conditions (power-up, wake-up, failure, and bus failure on the D20 version). Uses negative logic - pulled low when a signaled flag is set. Levels referenced to VIO.
9 WAKE input Local wake-up input. A stable High-to-Low or Low-to-High transition longer than tWAKE (5-50 us) is detected as a local wake-up event in Standby/Go-to-Sleep/Sleep modes. Internal current source (~5 uA pull-up or pull-down following the pin state). Rated up to 58 V; connect to GND or VBAT if unused.
10 VBAT power_in Battery supply connection (12 V or 24 V systems). Operating range 5 V to 50 V (6 V to 50 V guaranteed in Sleep mode); absolute max 58 V. Supplies the low-power wake circuitry and the INH output.
11 VSPLIT output Common-mode stabilization output providing VCC/2 (0.3VCC to 0.7VCC) in Normal and Receive-only modes for use with split termination to reduce EME. High-impedance (floating) in Standby and Sleep modes. Protected against short-circuit to battery/ground; rated -58 V to +58 V DC and +/-300 V transient.
12 CANL bidirectional Low-level CAN bus line (driven low in dominant state, typ 1.4 V). Differential pair with CANH; rated -58 V to +58 V DC and +/-300 V transient (ISO 7637). Short-circuit protected and thermally protected.
13 CANH bidirectional High-level CAN bus line (driven high in dominant state, typ 3.6 V). Differential pair with CANL; rated -58 V to +58 V DC and +/-300 V transient (ISO 7637). Short-circuit protected and thermally protected.
14 STB input Active-low stand-by mode control input (together with EN selects operating mode). Has an internal pull-down current so pin defaults low if disconnected. Levels referenced to VIO.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-14
Category Interface
Pins 14

Ordering variants

  • NCV7341D21R2GD21G
  • NCV7341D21R2G
  • NCV7341D21R2GD20G
  • NCV7341D21R2GD20R2G

CAD (KiCad official)

  • Symbol: NCV7341D21R2G
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: onsemi datasheet (None pp, sha256 59d663c1f4054c72, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

Symbol & Footprint

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PCB Footprint

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