GM3232EBA from GATEMODE, in a SSOP-16-208mil. 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 voltage-doubler charge-pump flying capacitor C1. Connects to the external capacitor between C1+ and C1-.
2	V+	power_out	Positive voltage produced by the internal charge pump (approximately +2×VCC). Bypass to GND with a reservoir capacitor (0.1µF typ, 0.33µF at 5V VCC).
3	C1-	passive	Negative terminal of the voltage-doubler charge-pump flying capacitor C1.
4	C2+	passive	Positive terminal of the inverting charge-pump flying capacitor C2.
5	C2-	passive	Negative terminal of the inverting charge-pump flying capacitor C2.
6	V-	power_out	Negative voltage generated by the internal inverting charge pump (approximately -2×VCC). Bypass to GND with a reservoir capacitor (0.1µF typ, 0.33µF at 5V VCC).
7	DOUT2	output	RS-232 driver output for channel 2. Swings between V+ and V- (typ ±5V) to drive an RS-232 line. Short-circuit protected to ground.
8	RIN2	input	RS-232 receiver input for channel 2. Accepts ±25V RS-232 signals with a standard built-in ~5kΩ input load resistor. Thresholds ~1.5V typ (VIT+) / ~1.1V typ (VIT-).
9	ROUT2	output	TTL/CMOS receiver output for channel 2. Drives VCC-level logic to a downstream UART; goes high when RIN2 is open-circuit.
10	DIN2	input	TTL/CMOS driver input for channel 2. VIH ≥ 2.0V (VCC=3.3V) / 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) / 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-level logic to a downstream UART; goes high when RIN1 is open-circuit.
13	RIN1	input	RS-232 receiver input for channel 1. Accepts ±25V RS-232 signals with a standard built-in ~5kΩ input load resistor. Thresholds ~1.5V typ (VIT+) / ~1.1V typ (VIT-).
14	DOUT1	output	RS-232 driver output for channel 1. Swings between V+ and V- (typ ±5V) to drive an RS-232 line. Short-circuit protected to ground.
15	GND	power_in	Device ground return. Common reference for logic and charge-pump capacitors.
16	VCC	power_in	+3.0V to +5.5V power supply input. Bypass with a 1µF (typ) capacitor to GND close to the pin. Absolute maximum +6V.

Key specifications

Parameter	Value
Manufacturer	GATEMODE
Package	SSOP-16-208mil
Category	Interface
Pins	16

Ordering variants

Same part, different packaging or reel option.

GM3232ESA
GM3232ETA
GM3232EBA
GM3232ENA

CAD (KiCad official)

Symbol: GM3232EBA
Footprint: Package_SO:SSOP-16_5.3x6.2mm_P0.65mm
3D model: SSOP-16-208mil (KiCad packages3D, STEP)

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