component
ES3485EEUA
Public Made by Adomby adom
ElecSuper RS-485 / RS-422 ICs, MSOP-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
markdownES3485EEUA
ElecSuper · RS-485 / RS-422 ICs · MSOP-8
ES3485EEUA from ElecSuper, in a MSOP-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: with /RE low, RO goes high when A-B is at least -10 mV and goes low when A-B is at or below -200 mV. |
| 2 | /RE | input | Receiver output enable, active low: a high level disables RO to high-impedance, and with /RE high and DE low the device enters low-power shutdown. |
| 3 | DE | input | Driver output enable: a high level enables the driver outputs and a low level puts them in high-impedance, and with /RE high and DE low the device enters low-power shutdown. |
| 4 | DI | input | Driver input: when DE is high, a low on DI drives A low and B high, and a high on DI drives A high and B low. |
| 5 | GND | power_in | Ground reference for the device; all voltages are referenced to ground. |
| 6 | A | bidirectional | Non-inverting driver output and non-inverting receiver input on the RS-485 bus, with bus input voltage rated -15 V to +15 V. |
| 7 | B | bidirectional | Inverting driver output and inverting receiver input on the RS-485 bus, with bus input voltage rated -15 V to +15 V. |
| 8 | VCC | power_in | Supply pin; the device operates from 3.0 V to 5.5 V and the absolute maximum supply voltage is +6.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ElecSuper |
| Package | MSOP-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 | 6.5 | V | 3 | |||
| Control port voltage (/RE, DE, DI) | -0.3 | V | Printed as -0.3~VCC+0.5; upper limit is an expression, not a number | 3 | |||
| Bus-side input voltage (A, B) | -15 | 15 | V | 3 | |||
| Receiver output voltage (RO) | -0.3 | V | Printed as -0.3~VCC+0.5; upper limit is an expression, not a number | 3 | |||
| Operating temperature range | TA | -40 | 125 | ℃ | 3 | ||
| Storage temperature range | Tstg | -60 | 150 | ℃ | 3 | ||
| Soldering temperature range | 300 | ℃ | 3 | ||||
| Driver differential output (no load) | VOD1 | 3 | 5.5 | V | No load | 3 | |
| Driver differential output | VOD2 | 1.5 | V | RL = 54 Ω, VCC=3.3V; printed max is VCC (expression) | 3 | ||
| Change in differential output voltage magnitude | ΔVOD | 0.2 | V | RL = 54 Ω | 3 | ||
| Output common-mode voltage | VOC | 3 | V | RL = 54 Ω | 3 | ||
| Change in common-mode output voltage magnitude | ΔVOC | 0.2 | V | RL = 54 Ω | 3 | ||
| High-level input voltage | VIH | 2 | V | DE, DI, /RE | 3 | ||
| Low-level input voltage | VIL | 0.8 | V | DE, DI, /RE | 3 | ||
| Logic input current | IIN1 | -2 | 2 | uA | DE, DI, /RE | 3 | |
| Output short-circuit current, shorted to high | IOSD1 | 250 | mA | short-circuit to 0V~12V | 3 | ||
| Output short-circuit current, shorted to low | IOSD2 | -250 | mA | short-circuit to -7V~0V | 3 | ||
| Receiver input current (A, B) | IIN2 | 125 | uA | DE = 0 V, VCC=0 or 3.3/5V, VIN = 12 V | 4 | ||
| Receiver input current (A, B) | IIN2 | -100 | uA | DE = 0 V, VCC=0 or 3.3/5V, VIN = -7V | 4 | ||
| Positive-going input threshold voltage | VIT+ | -10 | mV | -7V≤VCM≤12V | 4 | ||
| Negative-going input threshold voltage | VIT- | -200 | mV | -7V≤VCM≤12V | 4 | ||
| Input hysteresis voltage | Vhys | 10 | 30 | mV | -7V≤VCM≤12V | 4 | |
| Low-level output voltage | VOL | 0.4 | V | IOUT = +2.5mA, VID = -200 mV | 4 | ||
| Three-state input leakage current | IOZR | -1 | 1 | uA | 0.4V<VO<2.4V | 4 | |
| Receiver input resistance | RIN | 96 | kΩ | -7V≤VCM≤12V | 4 | ||
| Receiver short-circuit current | IOSR | -90 | 90 | mA | 0 V≤VO≤VCC | 4 | |
| Supply current, operating (driver disabled) | ICC1 | 240 | 650 | uA | /RE=0V, DE = 0 V, VCC=3.3V | 4 | |
| Supply current, operating (driver disabled) | ICC1 | 270 | 750 | uA | /RE=0V, DE = 0 V, VCC=5V | 4 | |
| Supply current, operating (driver and receiver enabled) | ICC2 | 250 | 650 | uA | /RE=VCC, DE=VCC, VCC=3.3V | 4 | |
| Supply current, operating (driver and receiver enabled) | ICC2 | 280 | 750 | uA | /RE=VCC, DE=VCC, VCC=5V | 4 | |
| Shutdown current | ISHDN | 0.2 | 10 | uA | /RE= VCC, DE=0V, VCC=3.3V | 4 | |
| Driver differential output delay | tDD | 20 | 40 | ns | RL=60Ω, CL=100pF | 5 | |
| Driver differential output transition time | tTD | 12 | 28 | ns | RL=60Ω, CL=100pF | 5 | |
| Driver propagation delay, low to high | tPLH | 20 | 40 | ns | RL=27Ω | 5 | |
| Driver propagation delay, high to low | tPHL | 20 | 40 | ns | RL=27Ω | 5 | |
| Driver propagation delay skew /tPLH, tPHL/ | tPDS | 1 | 8 | ns | 5 | ||
| Enable to output high | tPZH | 55 | ns | RL=110Ω | 5 | ||
| Enable to output low | tPZL | 55 | ns | RL=110Ω | 5 | ||
| Input high to disable | tPHZ | 85 | ns | RL=110Ω | 5 | ||
| Input low to disable | tPLZ | 85 | ns | RL=110Ω | 5 | ||
| Enable to output high from shutdown | tPSH | 20 | 100 | ns | RL=110Ω | 5 | |
| Enable to output low from shutdown | tPSL | 20 | 100 | ns | RL=110Ω | 5 | |
| Receiver input to output propagation delay, low to high | tRPLH | 60 | ns | CL=15pF | 5 | ||
| Receiver input to output propagation delay, high to low | tRPHL | 60 | ns | CL=15pF | 5 | ||
| Receiver propagation delay skew /tRPLH, tRPHL/ | tRPDS | 3 | 10 | ns | CL=15pF | 5 | |
| Enable to output low time | tPRZL | 15 | 40 | ns | CL=15pF | 5 | |
| Enable to output high time | tPRZH | 15 | 40 | ns | CL=15pF | 6 | |
| Output high to disable time | tRPHZ | 25 | 55 | ns | CL=15pF | 6 | |
| Output low to disable time | tPRLZ | 25 | 55 | ns | CL=15pF | 6 | |
| Enable to output low time from shutdown | tPRSL | 150 | 500 | ns | CL=15pF | 6 | |
| Enable to output high time from shutdown | tPRSH | 150 | 500 | ns | CL=15pF | 6 | |
| Time to enter shutdown | tSHDN | 50 | 300 | ns | NOTE2: /RE=1, DE=0 | 6 |
CAD (KiCad official)
- Symbol:
ES3485EEUA - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
es3485eeua-etched.step/es3485eeua-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);es3485eeua.step/es3485eeua.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ElecSuper datasheet (13 pp, sha256
4fbc1c2e3e72a553, retrieved 2026-10-19, 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).