component
HX3172-S
Public Made by Adomby adom
ZHHXDZ RS-485 / RS-422 ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownHX3172-S
ZHHXDZ · RS-485 / RS-422 ICs · SOP-8
HX3172-S from ZHHXDZ, in a SOP-8. 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 | RO | output | Receiver output: driven high when A-B is at or above -50 mV and low when A-B is at or below -200 mV, per the receiver truth table. |
| 2 | RE | input | Receiver output enable, active low: a low level enables the receiver, and a high level turns the receiver off; when RE is high and DE is low the whole chip is turned off. |
| 3 | DE | input | Driver output enable, active high: when DE is high the driver output is enabled, and when DE is low the driver output enters a high-resistance state. |
| 4 | DI | input | Driver input: when DI is high, A is driven high and B low; when DI is low, A is driven low and B high (drive truth table, with DE high). |
| 5 | GND | power_in | Ground reference pin for the device. |
| 6 | A | bidirectional | Non-inverting bus terminal, serving as the non-inverting receiver input and non-inverting driver output. |
| 7 | B | bidirectional | Inverting bus terminal, serving as the inverting receiver input and inverting driver output. |
| 8 | VCC | power_in | Supply pin for the 3.3 V or 5 V supply; the absolute maximum rating is +6.0 V, and DC characteristics are specified at Vcc = 3.3 V ±5%. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ZHHXDZ |
| Package | SOP-8 |
| Category | Interface |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage (absolute maximum) | VCC | 6 | V | 2 | |||
| Control input voltage (DE, RE) | DE，RE | -0.3 | 6 | V | 2 | ||
| Driver input voltage (DI) | DI | -0.3 | 6 | V | 2 | ||
| Bus pin voltage (A, B) | A,B | -8 | 13 | V | 2 | ||
| Storage temperature range | TSTG | -65 | 150 | ℃ | 2 | ||
| Operating temperature range | TOP | -40 | 125 | ℃ | 2 | ||
| Power dissipation | 471 | mW | SOP-8 (derate above 70 ℃) | 2 | |||
| Soldering temperature | 300 | ℃ | 10 seconds | 2 | |||
| Input high voltage (DE, DI, RE) | VIH1 | 2 | V | DE,DI,RE | 2 | ||
| Input low voltage (DE, DI, RE) | VIL1 | 0.8 | V | DE,DI,RE | 2 | ||
| Receiver output low voltage | VOL | 0.4 | V | IO=4mA, VID=-1V | 2 | ||
| Receiver differential threshold voltage | VTH | -200 | -75 | mV | -7V≤VCM≤+12V | 2 | |
| Receiver input impedance | RIN | 96 | kΩ | -7V≤VCM≤+12V | 2 | ||
| Receiver output short-circuit current | IOSR | -7 | 7 | mA | 0V≤VRO≤VCC | 2 | |
| Input current (A and B) | IIN4 | 125 | uA | VIN=12V | 2 | ||
| ESD protection, pins A and B (human body model) | -15 | 15 | kV | Human body model | 2 |
CAD (KiCad official)
- Symbol:
HX3172-S - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
hx3172-s-etched.step/hx3172-s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hx3172-s.step/hx3172-s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ZHHXDZ datasheet (5 pp, sha256
342e5d19cb707427, retrieved 2026-10-17, tier: lcsc) - 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).