component

HGX232ECM

Public Unreviewed

by Ray

HGSEMI RS232 ICs, SOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentinterfacehgx232ecm
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

PCB Footprint

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Datasheet

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Download PDF
Contents

README

markdown

HGX232ECM

HGSEMI · RS232 ICs · SOP-16

HGX232ECM 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 the external flying capacitor for the positive charge-pump voltage multiplier. Connect a 0.1 uF capacitor between C1+ (pin 1) and C1- (pin 3).
2 V+ power_out Positive output of the charge-pump voltage multiplier (approximately +10 V from a 5 V VCC). Bypass to VCC with a 0.1 uF capacitor.
3 C1- passive Negative terminal of the external flying capacitor for the positive charge-pump voltage multiplier. Pairs with C1+ (pin 1).
4 C2+ passive Positive terminal of the external flying capacitor for the negative charge-pump voltage multiplier. Connect a 0.1 uF capacitor between C2+ (pin 4) and C2- (pin 5).
5 C2- passive Negative terminal of the external flying capacitor for the negative charge-pump voltage multiplier. Pairs with C2+ (pin 4).
6 V- power_out Negative output of the charge-pump voltage multiplier (approximately -10 V from a 5 V VCC). Bypass to GND with a 0.1 uF capacitor.
7 T2OUT output Transmitter 2 output at RS-232 levels (typically +/-5 V or greater). Drives the far-end RS-232 receiver line.
8 R2IN input Receiver 2 input at RS-232 levels (up to +/-30 V). Internally biased with ~5 kOhm input resistance to ground.
9 R2OUT output Receiver 2 output at TTL/CMOS levels. Inverted output of the R2IN receiver.
10 T2IN input Transmitter 2 input at TTL/CMOS levels. Driven by the host UART TXD line.
11 T1IN input Transmitter 1 input at TTL/CMOS levels. Driven by the host UART TXD line.
12 R1OUT output Receiver 1 output at TTL/CMOS levels. Inverted output of the R1IN receiver.
13 R1IN input Receiver 1 input at RS-232 levels (up to +/-30 V). Internally biased with ~5 kOhm input resistance to ground.
14 T1OUT output Transmitter 1 output at RS-232 levels (typically +/-5 V or greater). Drives the far-end RS-232 receiver line.
15 GND power_in Ground / common return. All supply and signal returns reference this pin.
16 VCC power_in Positive supply input, 4.5 V to 5.5 V recommended (6.0 V absolute maximum). Decouple to GND with a 0.1 uF capacitor.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • HGX232ECM/TR
  • HGX232EIM/TR
  • HGX232ECN
  • HGX232EIN
  • HGX232ECMT/TR
  • HGX232EIMT/TR

CAD (KiCad official)

  • Symbol: HGX232ECM
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: HGSEMI datasheet (11 pp, sha256 10f1bf5b12850453, 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