SP3220EBEA-L from MaxLinear, in a SSOP-16. 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	EN	input	Receiver enable: apply logic LOW for normal operation, logic HIGH to disable the receiver outputs (high-Z state).
2	C1+	passive	Positive terminal of the voltage doubler charge-pump capacitor.
3	V+	power_out	+5.5V output generated by the charge pump (absolute maximum +7.0V).
4	C1-	passive	Negative terminal of the voltage doubler charge-pump capacitor.
5	C2+	passive	Positive terminal of the inverting charge-pump capacitor.
6	C2-	passive	Negative terminal of the inverting charge-pump capacitor.
7	V-	power_out	-5.5V output generated by the charge pump (absolute maximum -7.0V).
8	R1IN	input	RS-232 receiver input with internal 5kΩ pull-down, ±15V input range and ±15kV ESD protection.
9	R1OUT	output	TTL/CMOS receiver output, high-Z when EN is HIGH.
10	N.C.	unconnected	No connect.
11	T1IN	input	TTL/CMOS driver input with no pull-up resistor, so unused inputs should be tied to VCC or GND.
12	N.C.	unconnected	No connect.
13	T1OUT	output	RS-232 driver output with ±15kV ESD protection, tri-stated in shutdown.
14	GND	power_in	Ground.
15	VCC	power_in	+3.0V to +5.5V supply voltage.
16	SHDN	input	Shutdown control input: drive HIGH for normal operation, drive LOW to shut down the drivers (high-Z output) and the on-board power supply.

Key specifications

Parameter	Value
Manufacturer	MaxLinear
Package	SSOP-16
Category	Interface ICs
Pins	16

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 Current	ICC		0.3	1	mA	no load, VCC = 3.3V, TAMB = 25°C, TxIN = GND or VCC	2
Shutdown Supply Current			1	10	µA	SHDN = GND, VCC = 3.3V, TAMB = 25°C, TxIN = Vcc or GND	2
Input Logic Threshold LOW				0.8	V	TxIN, EN, SHDN, Note 2	2
Input Logic Threshold HIGH		2			V	Vcc = 3.3V, Note 2	2
Input Logic Threshold HIGH		2.4			V	Vcc = 5.0V, Note 2	2
Input Leakage Current			0.01	1	µA	TxIN, EN, SHDN, TAMB = +25°C, VIN = 0V to VCC	2
Output Leakage Current (receiver)			0.05	10	µA	Receivers disabled, VOUT = 0V to VCC	2
Output Voltage LOW	VOL			0.4	V	IOUT = 1.6mA	2
Output Voltage HIGH	VOH	-0.6	-0.1		V	IOUT = -1.0mA; printed VCC -0.6 min, VCC -0.1 typ	2
Driver Output Voltage Swing		5	5.4		V	Driver output loaded with 3KΩ to GND, TAMB = +25°C	2
Driver Output Resistance		300			Ω	VCC = V+ = V- = 0V, TOUT=+2V	3
Output Short-Circuit Current			35	60	mA	VOUT = 0V	3
Driver Output Leakage Current				25	µA	VOUT = +12V, VCC = GND to 5.5V, Drivers disabled	3
Receiver Input Voltage Range		-15		15	V		3
Receiver Input Threshold LOW		0.6		1.2	V	Vcc = 3.3V	3
Receiver Input Threshold LOW		0.8		1.5	V	Vcc = 5.0V	3
Receiver Input Threshold HIGH		1.5		2.4	V	Vcc = 3.3V	3
Receiver Input Threshold HIGH		1.8		2.4	V	Vcc = 5.0V	3
Receiver Input Hysteresis			0.3		V		3
Receiver Input Resistance		3	5	7	kΩ		3
Data Rate SP3220EB		250			kbps	RL = 3KΩ, CL = 1000pF	3
Receiver Propagation Delay tPHL	tPHL		0.15		µs	Receiver input to Receiver output, CL = 150pF	3
Receiver Propagation Delay tPLH	tPLH		0.15		µs	Receiver input to Receiver output, CL = 150pF	3
Receiver Output Enable Time			200		ns		3
Receiver Output Disable Time			200		ns		3
Driver Skew			100		ns	/ tPHL - tPLH /, TAMB = 25°C	3
Receiver Skew			50		ns	/ tPHL - tPLH /	3
Transition-Region Slew Rate				30	V/µs	Vcc = 3.3V, RL = 3kΩ, TAMB = 25°C, -3.0V to +3.0V or +3.0V to -3.0V (SP3220E and SP3220EB)	3
Supply Voltage	VCC	-0.3		6	V		2
V+ voltage	V+	-0.3		7	V	NOTE 1	2
V- voltage	V-	-7		0.3	V	NOTE 1	2
V+ + /V-/				13	V	NOTE 1	2
ICC (DC VCC or GND current)	ICC			100	mA		2
Input Voltage RxIN		-25		25	V	printed +25V	2
Output Voltage TxOUT		-13.2		13.2	V	printed +13.2V	2
Storage Temperature		-65		150	°C		2
Operating Temperature Range	TAMB	-40		85	°C	SP3220EBEA-L/TR ordering information	18
Supply Voltage	VCC	3		5.5	V		1

CAD (KiCad official)

Symbol: SP3220EBEA-L
Footprint: Package_SO:SSOP-16_5.3x6.2mm_P0.65mm
3D model: SSOP-16 (KiCad packages3D, STEP)
3D model files: sp3220ebea-l-etched.step / sp3220ebea-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sp3220ebea-l.step / sp3220ebea-l.glb are the bare package body.

Provenance

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

Datasheet: MaxLinear datasheet (19 pp, sha256 221656b2383cc637, retrieved 2026-10-31, tier: lcsc)
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

SP3220EBEA-L

Verified SP3220EBEA-L

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README