HT3232ARTZ from HTCSEMI, in a TSSOP-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	C1+	passive	Positive terminal of the first charge pump capacitor, connected to a 0.1 µF external capacitor for 3.3V operation.
2	V+	power_out	Doubled voltage terminal generated by the charge pump, with a maximum magnitude of +7V and
3	C1-	passive	Negative terminal of the first charge pump capacitor.
4	C2+	passive	Positive terminal of the second charge pump capacitor.
5	C2-	passive	Negative terminal of the second charge pump capacitor.
6	V-	power_out	Inverted voltage terminal generated by the charge pump, with a maximum magnitude of -7V and
7	T2OUT	output	Second RS-232 transmitter output, with an output voltage range of ±13.2 V.
8	R2IN	input	Second RS-232 receiver input, with an input voltage operating range of ±25 V.
9	R2OUT	output	Second receiver TTL/CMOS output, referenced to VCC with a range of -0.3 V to (VCC + 0.3) V.
10	T2IN	input	Second transmitter TTL/CMOS input, with an input voltage range of -0.3 V to 6 V.
11	T1IN	input	First transmitter TTL/CMOS input, with an input voltage range of -0.3 V to 6 V.
12	R1OUT	output	First receiver TTL/CMOS output, referenced to VCC with a range of -0.3 V to (VCC + 0.3) V.
13	R1IN	input	First RS-232 receiver input, with an input voltage operating range of ±25 V.
14	T1OUT	output	First RS-232 transmitter output, with an output voltage range of ±13.2 V.
15	GND	power_in	Ground reference for the device.
16	VCC	power_in	Supply voltage input, -0.3 to 6 V absolute maximum, with 3.3 V to 5.5 V recommended operation.

Key specifications

Parameter	Value
Manufacturer	HTCSEMI
Package	TSSOP-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
VCC Power Supply Current	ISUPPLY		2.5	5	mA	No Load VCC = 3.3V ±10% TA = 25°C	3
VCC Power Supply Current	ISUPPLY		6	10	mA	No Load VCC = 5V ±10% TA = 25°C	3
Input Logic Threshold Low	VTIL			0.8	V	T-IN (Note 1)	3
Input Logic Threshold High	VTIH	2			V	VCC = 3.3V	3
Input Logic Threshold High	VTIH	2.4			V	VCC = 5V	3
Input Leakage Current	IIL	-1	0.01	1	µA	T-IN	3
Output Voltage Swing	VTOUT	-5	5.4		V	All transmitter outputs loaded with 3KΩ to GND; VCC = 5.0V	3
Output Voltage Swing	VTOUT	-3.5	4		V	All transmitter outputs loaded with 3KΩ to GND; VCC = 3.3V	3
Transmitter Output Resistance (min)	RTOUT	300			Ω	VCC = V+ = V- = 0V; VOUT = ±2V	3
Transmitter Output Resistance (max)	RTOUT			10	MΩ	VCC = V+ = V- = 0V; VOUT = ±2V	3
Output Short Circuit Current	ITSC	-60		60	mA	VCC = 3.3V to 5V; VOUT = 0V	3
Receiver Input Voltage Operating Range	VRIN	-25		25	V		3
RS-232 Input Threshold Low	VRIL		0.6	1.2	V	TA = 25°C VCC = 3.3V	3
RS-232 Input Threshold Low	VRIL		0.8	1.5	V	TA = 25°C VCC = 5V	3
RS-232 Input Threshold High	VRIH		1.5	2.4	V	TA = 25°C VCC = 3.3V	3
RS-232 Input Threshold High	VRIH		1.8	2.4	V	TA = 25°C VCC = 5V	3
Input Hysteresis	VRIHYS		0.3		V		3
Input Resistance	RRIN	3	5	7	kΩ	TA = 25°C	3
TTL/CMOS Output Voltage Low	VROL			0.4	V	IOUT = 1.6mA VCC = 3.3V	3
Data Transfer Rate	DR			120	Kbps	RL = 3KΩ; CL2 = 1000pF; one transmitter switching; VCC = 3.3V	4
Propagation Delay Input to Output (receiver)	tPHLR, tPLHR		4	9.7	µs	RXIN = RXOUT; CL = 150pF	4
Propagation Delay Input to Output (transmitter)	tPHLT, tPLHT		2	5	µs	RL = 3KΩ; CL = 2500pF	4
Receiver Propagation Delay Difference	/tPHLR - tPLHR/			300	ns		4
Transmitter Propagation Delay Difference	/tPHLT - tPLHT/			300	ns		4
Transition Slew Rate	SRT	3		30	V/µs	TA = 25°C; RL = 3KΩ to 7KΩ; VCC = 3.3V; measured from +3V to -3V or -3V to +3V; CL = 150pF to 1000pF	4
Supply Voltage	VCC	-0.3		6	V		2
Doubled Voltage Terminal	V+			7	V	Minimum printed as (VCC - 0.3)	2
Inverted Voltage Terminal	V-	-7			V	Printed as 0.3 to -7 (sign of 0.3 not printed)	2
Voltage Magnitude Sum V+ + /V-/	V+ +/V-/			13	V		2
Transmitter Input Voltage Range	TIN	-0.3		6	V		2
Receiver Input Voltage Range	RIN	-25		25	V		2
Transmitter Output Voltage Range	TOUT	-13.2		13.2	V		2
Receiver Output Voltage Range	ROUT	-0.3			V	Maximum printed as (VCC + 0.3)	2
Storage Temperature	Ts	-60		150	°C		2
Supply Voltage	VCC	3.3		5.5	V	Test condition range VCC = 3.3V to 5.5V	3
Operating Temperature	TA	-40		125	°C	For all packages	1
Operating Temperature (test conditions)	TA	-40		85	°C	Unless otherwise specified (electrical table conditions)	3

CAD (KiCad official)

Symbol: HT3232ARTZ
Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
3D model: TSSOP-16 (KiCad packages3D, STEP)
3D model files: ht3232artz-etched.step / ht3232artz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht3232artz.step / ht3232artz.glb are the bare package body.

Provenance

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

Datasheet: HTCSEMI datasheet (13 pp, sha256 ebd757e3d17455ba, retrieved 2026-11-05, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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

HT3232ARTZ

Verified HT3232ARTZ

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

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