SP202EEN-L from MaxLinear, in a SOIC-16. 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	C1+	passive	Positive terminal of the charge-pump flying capacitor C1 (typ. 0.1uF ceramic). Used in charge-pump Phase 1 to double VCC.
2	V+	power_out	Regulated positive charge-pump output (nominally +6V). Bypass to GND with a 0.1uF ceramic reservoir capacitor. Supplies the internal RS-232 driver positive rail.
3	C1-	passive	Negative terminal of the charge-pump flying capacitor C1 (typ. 0.1uF ceramic).
4	C2+	passive	Positive terminal of the charge-pump flying capacitor C2 (typ. 0.1uF ceramic). Used by the inverting charge pump to develop V-.
5	C2-	passive	Negative terminal of the charge-pump flying capacitor C2 (typ. 0.1uF ceramic).
6	V-	power_out	Regulated negative charge-pump output (nominally -6V). Bypass to GND with a 0.1uF ceramic reservoir capacitor. Supplies the internal RS-232 driver negative rail.
7	T2OUT	output	Driver 2 RS-232 line output. Inverted level-shifted version of T2IN; swings between V- and V+ (typ. +/-6V, guaranteed +/-5.0V min into 3kohm/2500pF). Short-circuit protected.
8	R2IN	input	Receiver 2 RS-232 line input. Accepts +/-15V RS-232 signals; typical thresholds 1.2V/1.7V with 500mV hysteresis. Internal ~5kohm pull-down commits an unconnected input to a HIGH output.
9	R2OUT	output	Receiver 2 TTL/CMOS logic output. Inverted logic-level version of R2IN. VOL <= 0.4V @ 3.2mA, VOH >= 3.5V @ -1mA.
10	T2IN	input	Driver 2 TTL/CMOS logic input. Thresholds 0.8V LOW / 2.0V HIGH; internal pull-up (~15uA typ). Drives T2OUT to the inverted RS-232 level.
11	T1IN	input	Driver 1 TTL/CMOS logic input. Thresholds 0.8V LOW / 2.0V HIGH; internal pull-up (~15uA typ). Drives T1OUT to the inverted RS-232 level.
12	R1OUT	output	Receiver 1 TTL/CMOS logic output. Inverted logic-level version of R1IN. VOL <= 0.4V @ 3.2mA, VOH >= 3.5V @ -1mA.
13	R1IN	input	Receiver 1 RS-232 line input. Accepts +/-15V RS-232 signals; typical thresholds 1.2V/1.7V with 500mV hysteresis. Internal ~5kohm pull-down commits an unconnected input to a HIGH output.
14	T1OUT	output	Driver 1 RS-232 line output. Inverted level-shifted version of T1IN; swings between V- and V+ (typ. +/-6V, guaranteed +/-5.0V min into 3kohm/2500pF). Short-circuit protected.
15	GND	power_in	Device ground reference. All RS-232 and TTL signals are referenced to this pin.
16	VCC	power_in	Primary +5V logic and charge-pump supply (4.5-5.5V nominal, 6.0V absolute max). Typical ICC = 3mA no-load, 15mA when all transmitters loaded at 3kohm. Bypass with 0.1uF to GND.

Key specifications

Parameter	Value
Manufacturer	MaxLinear
Package	SOIC-16
Category	Interface
Pins	16

Ordering variants

Same part, different packaging or reel option.

SP202EEN-L
SP202EEN-L/TR
SP202ECN-L
SP202ECN-L/TR
SP202EET-L/TR
SP202ECT-L
SP202ECT-L/TR

CAD (KiCad official)

Symbol: SP202EEN-L
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOIC-16 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sp202een-l.step`	217 KB	You want the bare part, or you mark your own boards.
`sp202een-l-etched.step`	2.3 MB	You want the part with `SP202EEN-L` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 578 faces against 267 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: MaxLinear datasheet (19 pp, sha256 942adc867fc83cd3, retrieved 2026-08-17, tier: manufacturer)
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