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HADM485ARZ-REEL

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HXY MOSFET RS-485 / RS-422 ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HADM485ARZ-REEL

HXY MOSFET · RS-485 / RS-422 ICs · SOP-8

HADM485ARZ-REEL from HXY MOSFET, 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: goes high when VA is more than 200 mV above VB, and goes low when VA is more than 200 mV below VB.
2 RE input Receiver output enable, active low: when RE is high the receiver output RO is placed in high-impedance (high-Z) state.
3 DE input Driver output enable, active high: when DE is low the driver output is high-Z, and when DE is high the chip operates in transmit mode (DE low with RE low gives receive mode).
4 DI input Driver input: a low level on DI drives A high and B low, and a high level on DI does the opposite.
5 GND power_in Ground, the negative power supply terminal.
6 A bidirectional Receiver non-inverting input and driver non-inverting output.
7 B bidirectional Receiver inverting input and driver inverting output.
8 VCC power_in Positive power supply terminal, operated from a 5 V single supply; absolute maximum VCC rating is 10 V.

Key specifications

Parameter Value
Manufacturer HXY MOSFET
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 VCC 10 V 2
RE, DE control input voltage -0.5 10 V 2
DI driver input voltage -0.5 10 V 2
A, B driver output voltage -0.5 15 V 2
A, B receiver input voltage -0.5 15 V 2
RO receiver output voltage -0.5 10 V 2
Storage temperature Tstg -65 160 ℃ 2
Operating temperature TA -40 85 ℃ 2
Input high voltage (DE, RE) VIH 2 V 2
Input high voltage (DI) VIH 2.8 V 2
Input low voltage (DE, RE) VIL 0.8 V 2
Input low voltage (DI) VIL 1.6 V 2
Input current (DE, RE, DI) IIN1 -2 2 uA 2
Input current (A, B), VIN=0V IIN2 180 400 uA DE=0V, VCC=5V, VIN=0V 2
Receiver differential threshold voltage VTH -0.2 0.2 V 2
Receiver input hysteresis ΔVTH 70 mV 2
Receiver output high voltage VOH 3.5 4.5 V IO=-4mA, VID=200mV 2
Receiver output low voltage VOL 0.2 0.4 V IO=4mA, VID=-200mV 2
Receiver tri-state (high-Z) output current IOZR -1 1 uA 0.4V≤VO≤2.4V 2
Receiver input resistance RIN 48 KΩ 2
No-load supply current ICC 1.2 1.6 mV RE、DI=0 or VCC; DE=VCC 2
No-load supply current ICC 1.1 1.5 mV RE、DI=0 or VCC; DE=0 2
Driver short-circuit current (VO=High) IOSD1 120 250 mA DE=RE=5V, DI=0, VA=5V 2
Driver short-circuit current (VO=Low) IOSD2 120 250 mA DE=RE=5V, DI=0, VB=0 2
ESD protection, A and B pins, human body model ESD -4 4 KV A and B pins, human body model (note 1) 2
Receiver input to output tPLH tPLH 20 60 200 ns 见图2,图4, RDIFF=50Ω, CL1=CL2=100pF 3
Maximum data rate MAX 2.5 Mbps 3
Driver output skew to output SKEW 30 ns 3
Differential receiver skew tPLH - tPHL SKD 20 ns 差分接收 3

CAD (KiCad official)

  • Symbol: HADM485ARZ-REEL
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: hadm485arz-reel-etched.step / hadm485arz-reel-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hadm485arz-reel.step / hadm485arz-reel.glb are the bare package body.

Provenance

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

  • Datasheet: HXY MOSFET datasheet (8 pp, sha256 e352d2a5a4dd3f0e, retrieved 2026-10-18, 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, 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