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MAX3471EUA-TUDI
Public Made by Adomby adom
Tudi 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
markdownMAX3471EUA-TUDI
Tudi · RS-485 / RS-422 ICs · MSOP-8
MAX3471EUA-TUDI from Tudi, 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 is high when A-B is -50mV or greater and low when A-B is -450mV or less. |
| 2 | RE | input | Receiver output enable: drive RE low to enable RO; RO is high impedance when RE is high. |
| 3 | DE | input | Driver output enable: drive DE high to enable the driver outputs, which are high impedance when DE is low. |
| 4 | DI | input | Driver input: with DE high, a low on DI forces the noninverting output low and the inverting output high, and a high forces the reverse. |
| 5 | GND | power_in | Ground reference for the device. |
| 6 | A | bidirectional | Noninverting driver output and noninverting receiver input. |
| 7 | B | bidirectional | Inverting driver output and inverting receiver input. |
| 8 | Vcc | power_in | Positive supply, +2.5V to +5.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Tudi |
| 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 | 7 | V | 3 | |||
| Control input voltage (RE, DE) | -0.3 | V | max printed as (VCC)+0.3V | 3 | |||
| Driver input voltage (DI) | DI | -0.3 | V | max printed as (VCC)+0.3V | 3 | ||
| Driver output/receiver input voltage (A, B) | A, B | -10.5 | 10.5 | V | ±10.5V | 3 | |
| Receiver output voltage (RO) | RO | -0.3 | V | max printed as (VCC)+0.3V | 3 | ||
| Storage temperature range | -65 | 160 | °C | 3 | |||
| Lead temperature | 300 | °C | soldering, 10sec | 3 | |||
| Operating temperature range (MAX3471EUA) | TA | -40 | 85 | °C | MAX3471EUA | 3 | |
| Supply voltage operating range | VCC | 2.5 | 5.5 | V | 4 | ||
| Change in magnitude of differential output voltage | VOD | 0.2 | V | Figure 1, R=750 or 27 | 4 | ||
| Change in magnitude of driver common-mode voltage | VOC | 0.2 | V | Figure 1, R=750 or 27 | 4 | ||
| Differential driver output with load (RS-422) | VOD2 | 1.5 | V | Figure 1, R=750 (RS-422) | 4 | ||
| Input high voltage | VIH | 0.7 | ×Vcc | DE, DI, RE | 4 | ||
| Input low voltage | VIL | 0.3 | ×Vcc | DE, DI, RE | 4 | ||
| Input current | IN1 | -1 | 1 | μA | DE, DI, RE | 4 | |
| Receiver output short-circuit current (Vcc 3.6V) | IOSR | -20 | 50 | mA | 0≤VRO≤Vcc, Vcc 3.6V | 5 | |
| Receiver output short-circuit current (Vcc 5.5V) | IOSR | -40 | 110 | mA | 0≤VRO≤Vcc, Vcc 5.5V | 5 | |
| Receiver differential threshold voltage | VTH | -450 | -250 | -50 | mV | -7V≤VCM≤10V | 5 |
| Receiver output low voltage | VOL | 0.4 | V | IO=2.2mA, VID=-450mV | 5 | ||
| Three-state current at receiver output | IOZR | -1 | 1 | μA | 0≤VO≤Vcc | 5 | |
| Receiver input resistance | RIN | 96 | k | -7V≤VCM≤10V | 5 | ||
| Receiver input hysteresis | VTH | 32 | mV | VCM=0 | 5 | ||
| Driver input to output propagation delay | tDPLH, tDPHL | 1.4 | 2 | μs | Figures 3 and 5, RDIFF=1.5k, CL1=CL2=100pF | 6 | |
| Driver output skew | tDSKEW | 0.025 | μs | Figures 3 and 5, RDIFF=1.5k, CL1=CL2=100pF | 6 | ||
| Driver rise or fall time | tDR, tDF | 0.75 | 1.34 | 1.75 | μs | Figures 3 and 5, RDIFF=1.5k, CL1=CL2=100pF | 6 |
| Driver enable time to output high | tDZH | 1.5 | 6 | μs | Figures 4 and 6, CL=100pF, S2 closed, S1 open | 6 | |
| Driver enable time to output low | tDZL | 0.86 | 4 | μS | Figures 4 and 6, CL=100pF, S1 closed, S2 open | 6 | |
| Driver disable time from low | tDLZ | 0.4 | 1.5 | μS | Figures 4 and 6, CL=15pF, S1 closed, S2 open | 6 | |
| Driver disable time from high | tDHZ | 0.6 | 1.5 | μs | Figures 4 and 6, CL=15pF, S2 closed, S1 open | 6 | |
| Receiver input to output propagation delay (low-to-high) | tRPLH | 5.2 | 12 | μS | Figures 7 and 9, CL=15pF, /VID/=2V | 6 | |
| Receiver input to output propagation delay (high-to-low) | tRPHL | 6.4 | 12 | μS | Figures 7 and 9, CL=15pF, /VID/=2V | 6 | |
| Receiver enable time to output low | tRZL | 70 | 500 | ns | Figures 2 and 8, CL=15pF, S1 closed, S2 open | 6 | |
| Receiver enable time to output high | tRZH | 85 | 500 | ns | Figures 2 and 8, CL=15pF, S2 closed, S1 open | 6 | |
| Receiver disable time from low | tRLZ | 50 | 200 | ns | Figures 2 and 8, CL=15pF, S1 closed, S2 open | 6 | |
| Receiver disable time from high | tRHZ | 35 | 200 | ns | Figures 2 and 8, CL=15pF, S2 closed, S1 open | 6 | |
| Data rate | fMAX | 64 | kbps | Figure 9, CL=100pF | 6 |
CAD (KiCad official)
- Symbol:
MAX3471EUA-TUDI - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
max3471eua-tudi-etched.step/max3471eua-tudi-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max3471eua-tudi.step/max3471eua-tudi.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Tudi datasheet (11 pp, sha256
12dd6d886b5ca4fb, retrieved 2026-10-27, 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).