GM3232ENA from GATEMODE, in a SSOP-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 end of the voltage-doubler charge-pump capacitor C1. Connect an external flying capacitor (0.1µF typical at 3.3V, 0.047µF at 5V) between C1+ (pin 1) and C1- (pin 3).
2	V+	power_out	Positive voltage produced by the internal charge pump (approximately +2×VCC). Bypass to GND with a reservoir capacitor (0.1µF to 0.47µF depending on VCC). Absolute max +7V; V+ to V- difference must not exceed 13V.
3	C1-	passive	Negative end of the voltage-doubler charge-pump capacitor C1. Paired with C1+ (pin 1) to form the doubler flying cap.
4	C2+	passive	Positive end of the inverting charge-pump flying capacitor C2. Connect an external cap (0.1µF to 0.33µF depending on VCC) between C2+ (pin 4) and C2- (pin 5).
5	C2-	passive	Negative end of the inverting charge-pump flying capacitance. Paired with C2+ (pin 4).
6	V-	power_out	Negative voltage generated by the internal inverting charge pump (approximately -2×VCC). Bypass to GND with a reservoir capacitor. Absolute max -7V; V+ to V- difference must not exceed 13V.
7	DOUT2	output	RS-232 driver output for channel 2. Swings between V+ and V- to drive an RS-232 line. Short-circuit protected to GND (Ios ±60 mA typ). ESD-protected to ±15 kV HBM / IEC 61000-4-2 air discharge.
8	RIN2	input	RS-232 receiver input for channel 2. Accepts ±25V RS-232 line levels via a built-in 5 kΩ (3-7 kΩ) input resistance to ground. ESD-protected to ±15 kV HBM.
9	ROUT2	output	TTL/CMOS receiver output for channel 2. Drives VCC-referenced logic (VOH ≥ VCC-0.6 at -1 mA, VOL ≤ 0.4 mV at 1.6 mA). Output goes high when RIN2 is open-circuit.
10	DIN2	input	TTL/CMOS driver input for channel 2. VIH ≥ 2.0V (VCC=3.3V) or 2.4V (VCC=5V); VIL ≤ 0.8V. Inverted through the driver to DOUT2.
11	DIN1	input	TTL/CMOS driver input for channel 1. VIH ≥ 2.0V (VCC=3.3V) or 2.4V (VCC=5V); VIL ≤ 0.8V. Inverted through the driver to DOUT1.
12	ROUT1	output	TTL/CMOS receiver output for channel 1. Drives VCC-referenced logic (VOH ≥ VCC-0.6 at -1 mA, VOL ≤ 0.4 mV at 1.6 mA). Output goes high when RIN1 is open-circuit.
13	RIN1	input	RS-232 receiver input for channel 1. Accepts ±25V RS-232 line levels via a built-in 5 kΩ (3-7 kΩ) input resistance to ground. ESD-protected to ±15 kV HBM.
14	DOUT1	output	RS-232 driver output for channel 1. Swings between V+ and V- to drive an RS-232 line. Short-circuit protected to GND (Ios ±60 mA typ). ESD-protected to ±15 kV HBM / IEC 61000-4-2 air discharge.
15	GND	power_in	Device ground reference for logic and analog supply return.
16	VCC	power_in	+3.0V to +5.5V single-supply input (absolute max +6V). Bypass to GND with a 1µF ceramic capacitor placed close to the pin. Typical supply current ICC = 0.3 mA (no load).

Key specifications

Parameter	Value
Manufacturer	GATEMODE
Package	SSOP-16
Category	Interface
Pins	16

Ordering variants

Same part, different packaging or reel option.

GM3232ENA
GM3232ENAESA
GM3232ENAETA
GM3232ENAEBA

CAD (KiCad official)

Symbol: GM3232ENA
Footprint: Package_SO:SSOP-16_5.3x6.2mm_P0.65mm
3D model: SSOP-16 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`gm3232ena.step`	217 KB	You want the bare part, or you mark your own boards.
`gm3232ena-etched.step`	2.4 MB	You want the part with `GM3232ENA` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 599 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: GATEMODE datasheet (13 pp, sha256 d683feb35f456db6, 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