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Contents

README

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MAX202EIM

HGSEMI · RS232 ICs · SOP-16

MAX202EIM from HGSEMI, in a SOP-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 terminal of charge-pump flying capacitor C1 (0.1 µF, 16 V) used by the voltage doubler to generate V+.
2 V+ power_out Positive charge-pump output, approximately +10 V. Bypass to GND with a 0.1-µF capacitor (C3, 6.3 V or higher). Absolute maximum range VCC-0.3 V to +14 V.
3 C1- passive Negative terminal of charge-pump flying capacitor C1 (0.1 µF, 16 V).
4 C2+ passive Positive terminal of charge-pump flying capacitor C2 (0.1 µF, 16 V) used by the voltage inverter to generate V-.
5 C2- passive Negative terminal of charge-pump flying capacitor C2 (0.1 µF, 16 V).
6 V- power_out Negative charge-pump output, approximately -10 V. Bypass to GND with a 0.1-µF capacitor (C4, 16 V). Absolute maximum range -14 V to +0.3 V.
7 DOUT2 output RS-232 line driver 2 output. Swings between V+ and V- (approximately ±10 V) to drive an RS-232 line. Inverting: VOH ≈ 9 V (DIN=L), VOL ≈ -9 V (DIN=H). ±15-kV HBM ESD protected. Short-circuit current ±10 to ±60 mA.
8 RIN2 input RS-232 line receiver 2 input. Accepts ±30 V RS-232 signal levels. Input resistance 3-7 kΩ (typ 5 kΩ). Schmitt-trigger thresholds: VIT+ typ 1.7 V, VIT- typ 1.2 V, hysteresis typ 0.5 V. ±15-kV HBM ESD protected.
9 ROUT2 output CMOS/TTL-level receiver 2 output. Inverted with respect to RIN2. VOH ≥ 3.5 V at IOH = -1 mA; VOL ≤ 0.4 V at IOL = 1.6 mA. High when RIN2 is open or driven low.
10 DIN2 input CMOS/TTL-level line driver 2 input. VIH ≥ 2 V, VIL ≤ 0.8 V. Inverted at DOUT2.
11 DIN1 input CMOS/TTL-level line driver 1 input. VIH ≥ 2 V, VIL ≤ 0.8 V. Inverted at DOUT1.
12 ROUT1 output CMOS/TTL-level receiver 1 output. Inverted with respect to RIN1. VOH ≥ 3.5 V at IOH = -1 mA; VOL ≤ 0.4 V at IOL = 1.6 mA. High when RIN1 is open or driven low.
13 RIN1 input RS-232 line receiver 1 input. Accepts ±30 V RS-232 signal levels. Input resistance 3-7 kΩ (typ 5 kΩ). Schmitt-trigger thresholds: VIT+ typ 1.7 V, VIT- typ 1.2 V, hysteresis typ 0.5 V. ±15-kV HBM ESD protected.
14 DOUT1 output RS-232 line driver 1 output. Swings between V+ and V- (approximately ±10 V). Inverting: VOH ≈ 9 V (DIN=L), VOL ≈ -9 V (DIN=H). ±15-kV HBM ESD protected. Short-circuit current ±10 to ±60 mA.
15 GND power_in Device ground. Reference for all voltages.
16 VCC power_in Positive supply voltage input. Recommended 4.5 V to 5.5 V (nom 5 V). Absolute max 6 V. Supply current typ 8 mA, max 15 mA (no load). Bypass to GND with at least 0.1 µF.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • MAX202EIM/TR
  • MAX202ECM/TR
  • MAX202EIN
  • MAX202ECN
  • MAX202EIMT/TR
  • MAX202ECMT/TR

CAD (KiCad official)

  • Symbol: MAX202EIM
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)
  • 3D model files: max202eim-etched.step / max202eim-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max202eim.step / max202eim.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (13 pp, sha256 d669a5a448fb5d49, 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