component
MAX13433EIM
Public Made by Adomby adom
HGSEMI RS-485 / RS-422 ICs, SOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownMAX13433EIM
HGSEMI · RS-485 / RS-422 ICs · SOP-14
MAX13433EIM from HGSEMI, in a SOP-14. 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 | VL | power_in | Input logic level supply, to be bypassed to GND with a 0.1µF capacitor placed as close to the pin as possible, and operating from 1.62V up to VCC. |
| 2 | RO | output | Receiver output, which goes high when V(A)-V(B) is above -50mV and low when V(A)-V(B) is below -200mV while the receiver is enabled. |
| 3 | DE | input | Driver output enable, where a high level enables the driver and a low level disables it into a high-impedance state. |
| 4 | RE | input | Receiver output enable, where a low level makes RO valid and a high level disables the receiver; RE high with DE low puts the chip in shutdown. |
| 5 | DI | input | Driver input, where a low level forces the non-inverting output low and the inverting output high, and a high level forces the non-inverting output high and the inverting output low. |
| 6 | GND | power_in | Ground. |
| 7 | NC | unconnected | Not connected. |
| 8 | GND | power_in | Ground. |
| 9 | Y | bidirectional | Non-inverting driver output and non-inverting receiver input of the RS-422 bus. |
| 10 | Z | bidirectional | Inverting driver output and inverting receiver input of the RS-422 bus. |
| 11 | B | bidirectional | Inverting bus terminal, where the receiver input impedance is 1/8 unit load (96kΩ) per the datasheet. |
| 12 | A | bidirectional | Non-inverting bus terminal, where the receiver input impedance is 1/8 unit load (96kΩ) per the datasheet. |
| 13 | NC | unconnected | Not connected. |
| 14 | VCC | power_in | Positive supply, recommended operating range 3V to 5.5V, to be bypassed to GND with a 0.1µF capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | SOP-14 |
| Category | Interface |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
MAX13433EIM - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOP-14 (KiCad packages3D, STEP)
- 3D model files:
max13433eim-etched.step/max13433eim-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max13433eim.step/max13433eim.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (11 pp, sha256
170ed76270137c59, retrieved 2026-10-27, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).