ATA6570-GNQW0 from Microchip, 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 host CAN controller. Drives the CANH/CANL differential bus driver; logic low forces the bus dominant. Includes a TXD dominant time-out to prevent permanent bus blocking.
2	GND	power_in	Device ground. Common return for VS, VCC, VIO and the CAN bus driver. On the VDFN package the exposed thermal pad is internally connected to this pin.
3	VCC	power_in	5 V supply for the integrated CAN transceiver output stage. Typically decoupled locally with a ceramic capacitor to GND. Undervoltage detection on VCC is provided.
4	RXD	output	Receive data output to the host CAN controller. Reports the bus state (dominant = low, recessive = high) and is referenced to VIO. Includes recessive-clamping detection.
5	VIO	power_in	Supply for the digital I/O level adapter, tied to the microcontroller's supply (3.3 V or 5 V). Sets the logic-high levels on TXD, RXD, SDI, SDO, SCK and NCS. Undervoltage detection on VIO is provided.
6	SDO	output	SPI serial data output (MISO). Data is shifted out on this pin to the host MCU during SPI transactions. High-impedance when NCS is de-asserted.
7	INH	output	High-side inhibit output for switching an external voltage regulator on/off. Sourced from VS; enabled in Standby/Normal mode and switched off in Sleep mode to power down the ECU.
8	SCK	input	SPI clock input from the host MCU. Supports SPI clock rates up to 4 MHz. Data on SDI is sampled and SDO is updated on the appropriate clock edges.
9	WAKE	input	High-voltage local wake-up input, referenced to VS. A rising or falling edge (per configuration) initiates a local wake-up event to bring the device out of Sleep or Standby mode.
10	VS	power_in	Battery supply input. Normally connected to the vehicle battery through a reverse-polarity diode. Operating range up to 28 V with 40 V DC/load-dump tolerance; undervoltage detection is implemented.
11	SDI	input	SPI serial data input (MOSI) from the host MCU. Carries command and register-write data clocked in by SCK while NCS is asserted low.
12	CANL	bidirectional	Low-level CAN bus line. Driven low in the dominant state and biased to roughly VCC/2 in the recessive state. Protected against shorts to GND/VCC and automotive transients per ISO 7637.
13	CANH	bidirectional	High-level CAN bus line. Driven high in the dominant state and biased to roughly VCC/2 in the recessive state. Protected against shorts to GND/VCC and automotive transients per ISO 7637.
14	NCS	input	Active-low SPI chip-select input. Framing signal that gates SPI transactions; SDO is driven only while NCS is low.

Key specifications

Parameter	Value
Manufacturer	Microchip
Package	SOIC-14
Category	Comm/UART
Pins	14

Ordering variants

ATA6570-GNQW0
ATA6570-GNQW0GNQW1
ATA6570-GNQW0GCQW0
ATA6570-GNQW0GCQW1

CAD (KiCad official)

Symbol: ATA6570-GNQW0
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ata6570-gnqw0.step`	195 KB	You want the bare part, or you mark your own boards.
`ata6570-gnqw0-etched.step`	2.6 MB	You want the part with `ATA6570-GNQW0` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 664 faces against 237 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Microchip datasheet (68 pp, sha256 e72a03940d79c3a5, retrieved 2026-08-17, tier: lcsc)
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