MX25L6433FM2I-08G from MXIC Macronix, in a SOP-8-200mil. 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	CS#	input	Chip Select, active low. Drives the device into active mode when low; when high the device is deselected and enters standby.
2	SO/SIO1	bidirectional	Serial Data Output in single (1xI/O) mode; becomes bidirectional data line SIO1 in Dual (2xI/O) and Quad (4xI/O) modes.
3	WP#/SIO2	bidirectional	Write Protect (active low) when in single/dual I/O mode - asserts hardware protection of the Status Register when combined with the SRWD bit. Becomes bidirectional data line SIO2 in Quad (4xI/O) mode.
4	GND	power_in	Ground reference (0 V) for supply and signals.
5	SI/SIO0	bidirectional	Serial Data Input in single (1xI/O) mode; becomes bidirectional data line SIO0 in Dual (2xI/O) and Quad (4xI/O) modes.
6	SCLK	input	Serial Clock input. All data on SI/SIO0..SIO3 is latched/driven relative to SCLK edges. Supports SPI Mode 0 and Mode 3 up to 133 MHz.
7	HOLD#/SIO3	bidirectional	Hold (active low) - pauses serial communication without deselecting the device in single/dual I/O mode. Becomes bidirectional data line SIO3 in Quad (4xI/O) mode. Has an internal pull-up.
8	VCC	power_in	+3.0 V power supply. Operating range 2.65 V to 3.6 V for read, erase and program operations.

Key specifications

Parameter	Value
Manufacturer	MXIC Macronix
Package	SOP-8-200mil
Category	Memory
Pins	8

Ordering variants

Same part, different packaging or reel option.

MX25L6433FM2I-08G
MX25L6433FM2I-08Q
MX25L6433FM2I-08GFMI-08G
MX25L6433FM2I-08GFMI-08Q
MX25L6433FM2I-08GFZ2I-08G
MX25L6433FM2I-08GFZNI-08G
MX25L6433FM2I-08GFZNI-08Q
MX25L6433FM2I-08GFXCI-08G
MX25L6433FM2I-08GFBBI-08G

CAD (KiCad official)

Symbol: MX25L6433FM2I-08G
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8-200mil (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`mx25l6433fm2i-08g.step`	122 KB	You want the bare part, or you mark your own boards.
`mx25l6433fm2i-08g-etched.step`	3.3 MB	You want the part with `MX25L6433FM2I-08G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 808 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: MXIC Macronix datasheet (83 pp, sha256 edb75bc0e7ba9c24, 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