SP3490CN-L from MaxLinear, in a SOIC-8. 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	Positive supply, 3.00V < Vcc < 3.60V.
2	R	output	Receiver output.
3	D	input	Driver input.
4	GND	power_in	Ground connection.
5	Y	output	Non-inverting driver output.
6	Z	output	Inverting driver output.
7	B	input	Inverting receiver input, -7V to 12V common-mode range.
8	A	input	Non-inverting receiver input, -7V to 12V common-mode range.

Key specifications

Parameter	Value
Manufacturer	MaxLinear
Package	SOIC-8
Category	Interface ICs
Pins	8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Supply voltage	VCC	3	3.3	3.6	V		3
Differential output voltage (RS-422)		2			V	With load; R = 50Ω (RS-422); Figure 1	2
Differential output voltage (RS-485)		1.5			V	With load; R = 27Ω (RS-485); Figure 1	2
Change in magnitude of driver differential output voltage				0.2	V	R = 27Ω or R = 50Ω; Figure 1	2
Driver common-mode output voltage				3	V	R = 27Ω or R = 50Ω; Figure 1	2
Input high voltage		2			V		2
Input low voltage				0.8	V		2
Input current		-10		10	µA		2
Driver short circuit current, VOUT = HIGH		-250		250	mA	-7V ≤ VO ≤ 12V; Figure 8	2
Driver short circuit current, VOUT = LOW		-250		250	mA	-7V ≤ VO ≤ 12V; Figure 8	2
Driver maximum data rate				10	Mbps		2
Driver input to output tPLH	tPLH	20	40	60	ns	R = 27Ω, Figures 2 & 9	2
Driver input to output tPHL	tPHL	20	40	60	ns	R = 27Ω, Figures 2 & 9	2
Differential driver skew				2	ns	/tPHL(Y)- tPLH(Y)/, /tPHL(Z)- tPLH(Z)/, Figures 2 and 9	3
Driver rise or fall time			5	20	ns	From 10%-90%; Figures 3 and 10	3
Receiver differential input threshold		-0.2		0.2	Volts	-7V ≤ VCM ≤ 12V	3
Receiver output voltage LOW				0.4	Volts	VID = -200mV, IO = 2.5mA	3
Receiver input resistance		12	15		kΩ	-7V ≤ VCM ≤ 12V	3
Receiver input current (A, B) at VIN = 12V				1	mA	VIN = 12V	3
Receiver input current (A, B) at VIN = -7V		-0.8			mA	VIN = -7V	3
Receiver short circuit current				60	mA	0V ≤ VO ≤ VCC	3
Receiver maximum data rate				10	Mbps		3
Receiver input to output tPLH	tPLH	40	70	120	ns	Figures 6 and 12	3
Receiver input to output tPHL	tPHL	40	70	120	ns	Figures 6 and 12	3
Differential receiver skew				4	ns	/tPHL(A)- tPLH(A)/, /tPHL(B)- tPLH(B)/, Figures 6 and 12	3
Supply current			1000	2000	µA	D = 0V or VCC	3
ESD protection for D, R, A, B, Y and Z pins		-2		2	kV	Human Body Model	3
Supply voltage	VCC			6	V		2
Input voltage, logic		-0.3		6	V		2
Input voltage, drivers		-0.3		6	V		2
Input voltage, receivers		-14		14	V		2
Output voltage, drivers		-14		14	V		2
Output voltage, receivers		-0.3		6	V		2
Storage temperature		-65		150	°C		2
Operating temperature range		0		70	°C	SP3490CN-L	12
Thermal resistance, 8-pin NSOIC	ΘJA		128.4		°C/W	8-pin NSOIC	2
ESD rating		-2		2	kV	Human Body Model (HBM)	2

CAD (KiCad official)

Symbol: SP3490CN-L
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)
3D model files: sp3490cn-l-etched.step / sp3490cn-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sp3490cn-l.step / sp3490cn-l.glb are the bare package body.

Provenance

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

Datasheet: MaxLinear datasheet (12 pp, sha256 53de7ea6a2a264b2, retrieved 2026-10-30, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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

SP3490CN-L

Verified SP3490CN-L

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

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