TRS3223QPWRQ1 from Texas Instruments, in a TSSOP-20. 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 input; when high the receiver outputs are high-impedance, 5.5 V max input with VIL 0.8 V.
2	C1+	passive	Positive terminal of charge-pump capacitor C1.
3	V+	power_out	Positive charge-pump output supply, 7 V max, decoupled with an external capacitor.
4	C1-	passive	Negative terminal of charge-pump capacitor C1.
5	C2+	passive	Positive terminal of charge-pump capacitor C2.
6	C2-	passive	Negative terminal of charge-pump capacitor C2.
7	V-	power_out	Negative charge-pump output supply, -7 V max, decoupled with an external capacitor.
8	DOUT2	output	RS-232 driver 2 output with ±15 kV HBM ESD protection, swings ±5 V min into 3 kΩ.
9	RIN2	input	RS-232 receiver 2 input with ±15 kV HBM ESD protection, ±25 V input range and 5 kΩ typical input resistance.
10	ROUT2	output	Logic-level receiver 2 output, high-impedance when EN is high.
11	INVALID	output	Valid-signal output that is high when any receiver input is beyond ±2.7 V and low when inputs stay within ±0.3 V for more than 30 µs.
12	DIN2	input	Logic input for driver 2, accepts up to 5.5 V.
13	DIN1	input	Logic input for driver 1, accepts up to 5.5 V.
14	FORCEON	input	Drives auto-powerdown control; low with FORCEOFF high enables auto-powerdown, high with FORCEOFF high disables it.
15	ROUT1	output	Logic-level receiver 1 output, high-impedance when EN is high.
16	RIN1	input	RS-232 receiver 1 input with ±15 kV HBM ESD protection, ±25 V input range and 5 kΩ typical input resistance.
17	DOUT1	output	RS-232 driver 1 output with ±15 kV HBM ESD protection, swings ±5 V min into 3 kΩ.
18	GND	power_in	Ground.
19	VCC	power_in	Supply voltage input, 3 V to 5.5 V, with 0.1 µF bypass capacitor.
20	FORCEOFF	input	Active-low power-off control; low shuts off drivers and charge pump, reducing supply current to 1 µA typical.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	TSSOP-20
Category	Interface ICs
Pins	20

Electrical characteristics

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

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
VCC Supply voltage range	VCC	-0.3		6	V		3
V+ Positive output supply voltage range	V+	-0.3		7	V		3
V- Negative output supply voltage range	V-	-7		0.3	V		3
V+ - V- Supply voltage difference	V+, V-			13	V		3
Input voltage range, driver, FORCEOFF, FORCEON, EN	VI	-0.3		6	V	Driver, FORCEOFF, FORCEON, EN	3
Input voltage range, receiver	VI	-25		25	V	Receiver	3
Output voltage range, driver	VO	-13.2		13.2	V	Driver	3
Operating virtual-junction temperature	TJ			150	°C		3
Storage temperature range	Tstg	-65		150	°C		3
Package thermal impedance	θJA		83		°C/W		3
VCC Supply voltage	VCC	3	3.3	3.6	V	VCC = 3.3 V	3
VCC Supply voltage	VCC	4.5	5	5.5	V	VCC = 5 V	3
High-level input voltage	VIH	2			V	Driver and control, VCC = 3.3 V	3
High-level input voltage	VIH	2.4			V	DIN, EN, FORCEOFF, FORCEON, VCC = 5 V	3
Low-level input voltage	VIL			0.8	V	Driver and control, DIN, EN, FORCEOFF, FORCEON	3
Input voltage	VI	0		5.5	V	Driver and control, DIN, EN, FORCEOFF, FORCEON	3
Input voltage	VI	-25		25	V	Receiver	3
Operating free-air temperature	TA	-40		125	°C		3
Supply current, auto-powerdown disabled	ICC		0.3	2	mA	No load, FORCEOFF and FORCEON at VCC	3
Supply current, powered off	ICC		1	20	µA	VCC = 3.3 V or 5 V, No load, FORCEOFF at GND	3
Supply current, auto-powerdown enabled	ICC		1	20	µA	No load, FORCEOFF at VCC, FORCEON at GND, All RIN are open or grounded	3
Input leakage current	II	-1	0.01	1	µA	EN, FORCEOFF, FORCEON	3
High-level output voltage, driver	VOH	5	5.4		V	DOUT at RL = 3 kΩ to GND	4
Low-level output voltage, driver	VOL	-5	-5.4		V	DOUT at RL = 3 kΩ to GND	4
High-level input current	IIH	-1	0.01	1	µA	VI = VCC	4
Low-level input current	IIL	-1	0.01	1	µA	VI = GND	4
Short-circuit output current	IOS	-60	35	60	mA	VCC = 3.6 V, VO = 0 V	4
Output resistance	ro	300			Ω	VCC, V+, and V- = 0 V, VO = ±2 V	4
Output resistance	ro			10	MΩ	VCC, V+, and V- = 0 V, VO = ±2 V	4
Output leakage current	Ioff	-25		25	µA	FORCEOFF = GND, VO = ±12 V, VCC = 3 V to 3.6 V	4
Maximum data rate		250			kbit/s	CL = 1000 pF, One DOUT switching, RL = 3 kΩ	4
Pulse skew	tsk(p)			100	ns	CL = 150 pF to 2500 pF, RL = 3 kΩ to 7 kΩ	4
Slew rate, transition region	SR(tr)	6		30	V/µs	VCC = 3.3 V, RL = 3 kΩ to 7 kΩ, CL = 150 pF to 1000 pF	4
Slew rate, transition region	SR(tr)	4		30	V/µs	VCC = 3.3 V, RL = 3 kΩ to 7 kΩ, CL = 150 pF to 2500 pF	4
Low-level output voltage, receiver	VOL			0.4	V	IOL = 1.6 mA	5
Positive-going input threshold voltage	VIT+	1.6		2.4	V	VCC = 3.3 V	5
Positive-going input threshold voltage	VIT+	1.9		2.4	V	VCC = 5 V	5
Negative-going input threshold voltage	VIT-	0.6		1.1	V	VCC = 3.3 V	5
Negative-going input threshold voltage	VIT-	0.8		1.4	V	VCC = 5 V	5
Input hysteresis (VIT+, VIT-)	Vhys		0.5		V		5
Output leakage current, receiver	Ioff	-10	0.05	10	µA	EN = VCC	5
Input resistance	ri	3	5	8.3	kΩ	VI = ±3 V to ±25 V	5
Receiver input threshold for INVALID high-level output, positive	VT+(valid)	2.7			V	FORCEON = GND, FORCEOFF = VCC	6
Receiver input threshold for INVALID high-level output, negative	VT-(valid)			-2.7	V	FORCEON = GND, FORCEOFF = VCC	6
Receiver input threshold for INVALID low-level output	VT(invalid)	-0.3		0.3	V	FORCEON = GND, FORCEOFF = VCC	6
INVALID low-level output voltage	VOL			0.4	V	IOL = 1.6 mA, FORCEON = GND, FORCEOFF = VCC	6

CAD (KiCad official)

Symbol: TRS3223QPWRQ1
Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
3D model: TSSOP-20 (KiCad packages3D, STEP)
3D model files: trs3223qpwrq1-etched.step / trs3223qpwrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); trs3223qpwrq1.step / trs3223qpwrq1.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (17 pp, sha256 e19e777de74ce14f, retrieved 2026-10-30, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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

TRS3223QPWRQ1

Verified TRS3223QPWRQ1

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README