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max232eimt-etched.step	max232eimt: factory component page (tier=lcsc) · Ray	17d ago
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MAX232EIMT

HGSEMI · RS232 ICs · TSSOP-16

MAX232EIMT from HGSEMI, 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 external capacitor for the positive voltage multiplier unit, which the datasheet describes as an output of external capacitance.
2	V+	power_out	Positive voltage output of the multiplier unit, specified at 5.0 V minimum with a -0.3 V to VCC+14 V... absolute range of -0.3 V to 14 V relative to VCC (VCC-0.3 to 14 V).
3	C1-	passive	Negative terminal of the external capacitor for the positive voltage multiplier unit, which the datasheet describes as an output of external capacitance.
4	C2+	passive	Positive terminal of the external capacitor for the negative voltage multiplier unit, which the datasheet describes as an output of external capacitance.
5	C2-	passive	Negative terminal of the external capacitor for the negative voltage multiplier unit, which the datasheet describes as an output of external capacitance.
6	V-	power_out	Negative voltage output of the multiplier unit, specified at -5.0 V minimum and absolute limit of -14 V.
7	T2OUT	output	RS-232 level transmitter data output; the transmitter short-circuit output current is rated ±60 mA.
8	R2IN	input	RS-232 level receiver data input; the receiver input voltage is rated at ±30 V.
9	R2OUT	output	TTL/CMOS level receiver data output.
10	T2IN	input	TTL/CMOS level transmitter data input, with a transmitter input voltage range of 0 V to VCC.
11	T1IN	input	TTL/CMOS level transmitter data input, with a transmitter input voltage range of 0 V to VCC.
12	R1OUT	output	TTL/CMOS level receiver data output.
13	R1IN	input	RS-232 level receiver data input; the receiver input voltage is rated at ±30 V.
14	T1OUT	output	RS-232 level transmitter data output; the transmitter short-circuit output current is rated ±60 mA.
15	GND	power_in	Common ground reference for the device.
16	VCC	power_in	Supply voltage input, rated 4.5 V to 5.5 V.

Key specifications

Parameter	Value
Manufacturer	HGSEMI
Package	TSSOP-16
Category	Interface
Pins	16

Electrical characteristics

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

Parameter	Symbol	Min	Max	Unit	Conditions	Page
Supply voltage	VCC	4.5	5.5	V		3
Transmitter output high voltage	V+	5		V		3
Transmitter output low voltage	V-	-5		V		3
Transmitter input voltage	VTIN	0		V		3
Receiver input voltage	VRIN	-30	30	V		3
Transmitter short circuit output current	ISC	-60	60	mA		3
Ambient temperature	Ta	-40	85	℃	MAX232EI	3
Supply voltage	VCC	-0.3	6	V		3
Transmitter high output voltage	V+		14	V		3
Transmitter low output voltage	V-	-0.3	-14	V		3
Transmitter input voltage	VTIN	-0.3		V		3
Receiver input voltage	VRIN	-30	30	V		3
Ambient temperature	Ta	-60	150	℃		3
Lead temperature (soldering)	TL		260	℃	Soldering, 10 seconds	3
Consumption current static	ICC		14	mA	VCC = 5.5 V; VIL = 0 V	5
Hysteresis voltage	Vh	0.2	1	V	VCC = 5.0 V	5
On (operation) voltage	VOn		2.3	V	VO ≦ 0.1 V; IOL ≦ 20 mkA	5
Off (dropout) voltage	Voff	0.9		V	VO ≧ VCC -0.1 V; IOH ≦ -20 mkA	5
Output low voltage (receiver)	VOL		0.4	V	IOL = 3.2 мА; VCC = 4.5 V; VIH = 2.4 V	5
Output high voltage (receiver)	VOH	3.5		V	IOH = -1.0 мА; VCC = 4.5 V; VIL = 0.8 V	5
Input resistance	RI	3	7	kOhm	VCC = 5.0 V	5
Output low voltage (transmitter)	VOL		-5	V	VCC = 4.5 V; VIH = 2.0 V; RL = 3.0 kOhm	5
Output high voltage (transmitter)	VOH	5		V	VCC = 4.5 V; VIL = 0.8 V; RL = 3.0 kOhm	5
Input low current	IIL		-10	mkA	VCC = 5.5 V; VIL = 0 V	5
Speed of output front change	SR	2.7	27	V/mks	VCC = 5.0 V; CL = 50 - 1000 pF; RL = 3.0 - 7.0 kOhm	5
Output resistance	RO	300		Ohm	VCC = V+ = V- = 0 V; VO = 2 V	5
Short circuit output current	ISC	-60	60	mA	VCC = 5.5 V; VO = 0 V; VI = VCC, VI = 0 V	5
Speed of information transmission	ST	120		kbit/с	VCC = 4.5 V; CL = 1000 pF; RL = 3.0 kOhm; tW = 7 mks (for extreme tW = 8 mks)	5
Signal propagation delay time when switching on (off), receiver	tPHLR (tPLHR)		10	mks	VCC = 4.5 V; CL = 150 pF; VIL = 0 V; VIH = 3.0 V; tLH = tHL ≦ 10 ns	6

CAD (KiCad official)

Symbol: MAX232EIMT
Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
3D model: TSSOP-16 (KiCad packages3D, STEP)
3D model files: max232eimt-etched.step / max232eimt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max232eimt.step / max232eimt.glb are the bare package body.

Provenance

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

Datasheet: HGSEMI datasheet (11 pp, sha256 9a012bf2ba7d349e, retrieved 2026-10-18, 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