ATA6561-GAQW from Microchip, in a SOIC-8. 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 to the transceiver. Internally pulled up to VIO (which is internally tied to VCC on ATA6560). Dominant time-out disables the driver if held low longer than t_to(dom)TXD.
2	GND	power_in	Ground supply reference (0 V).
3	VCC	power_in	Supply voltage for the transceiver, 4.5 V to 5.5 V nominal. On ATA6560 the VCC and internal VIO rails are internally connected, so I/O levels are 5 V-compatible.
4	RXD	output	Receive Data Output; reads out data from the CAN bus lines. Push-pull output referenced to VIO/VCC. Recessive = HIGH, dominant = LOW; also signals wake-up requests in Standby mode.
5	NSIL	input	Silent Mode Control Input (low active). Together with STBY selects Silent (receive-only) mode. Internally pulled up to VIO/VCC.
6	CANL	bidirectional	Low-level CAN bus line. Differential I/O with CANH, driven low in dominant state and biased to VCC/2 in Normal mode. Short-circuit protected to GND or a positive supply, with ISO 7637-part-2 transient tolerance -150 V to +100 V and ±8 kV ESD (IEC 61000-4-2).
7	CANH	bidirectional	High-level CAN bus line. Differential I/O with CANL, driven high in dominant state and biased to VCC/2 in Normal mode. Short-circuit protected, with ISO 7637-part-2 transient tolerance -150 V to +100 V and ±8 kV ESD (IEC 61000-4-2).
8	STBY	input	Standby Mode Control Input. HIGH selects Standby (low-power) mode; LOW together with the appropriate NSIL/TXD state selects Normal or Silent operation. Internally pulled up to VIO/VCC.

Key specifications

Parameter	Value
Manufacturer	Microchip
Package	SOIC-8
Category	Interface
Pins	8

Ordering variants

ATA6561-GAQW
ATA6561-GAQW-N
ATA6561-GAQWGBQW
ATA6561-GAQWGBQW-N
ATA6561-GAQWATA6561-GBQW
ATA6561-GAQWATA6561-GBQW-N

CAD (KiCad official)

Symbol: ATA6561-GAQW
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ata6561-gaqw.step`	122 KB	You want the bare part, or you mark your own boards.
`ata6561-gaqw-etched.step`	2.2 MB	You want the part with `ATA6561-GAQW` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 541 faces against 147 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 (28 pp, sha256 dac60589c9c1902e, 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