component
GM3471ESA
Public Made by Adomby adom
GATEMODE RS-485 / RS-422 ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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GM3471ESA
GATEMODE · RS-485 / RS-422 ICs · SOP-8
GM3471ESA from GATEMODE, 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: with RE low, RO is high when (A-B) ≥ -50mV and low when (A-B) ≤ -200mV; RO is high impedance when RE is high. |
| 2 | RE | input | Receiver output enable: drive RE low to enable RO and drive RE high to put RO in high impedance. |
| 3 | DE | input | Driver output enable: drive DE high to enable the driver outputs; the outputs are high impedance when DE is low. |
| 4 | DI | input | Driver input: driving DI low forces the noninverting output low and the inverting output high, and driving DI high forces the noninverting output high and the inverting output low. |
| 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 | Supply voltage, 2.5V ≤ VCC ≤ 5.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GATEMODE |
| 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 | 7 | V | 2 | |||
| A,B Driver Output/Receiver Input Voltage | -10.5 | 10.5 | V | 2 | |||
| Operating Temperature Range | TOP | -40 | 85 | °C | 2 | ||
| Storage Temperature Range | TSTO | -65 | 160 | °C | 2 | ||
| Lead Temperature (soldering, 10 sec) | TL | 300 | °C | soldering, 10 sec | 2 | ||
| Differential Transmitter Output (RS-422) | VOD2 | 1.8 | 3.6 | V | Fig.1, R=750Ω (RS-422) | 3 | |
| Differential Transmitter Output (RS-485) | VOD2 | 0.6 | 1.2 | V | Fig.1, R=27Ω (RS-485) | 3 | |
| Change in Magnitude of Differential Output Voltage | ΔVOD | 0.2 | V | Fig.1, R=750Ω or R=27Ω | 3 | ||
| Change in Magnitude of Common-Mode Output Voltage | ΔVOC | 0.2 | V | Fig.1, R=750Ω or R=27Ω | 3 | ||
| Input Current (DE=GND, VCC=GND or 5.5V, VIN=-7V) | IIN2 | -0.045 | mA | DE=GND, VCC=GND or 5.5V, VIN=-7V | 3 | ||
| Input Current (DE=GND, VCC=GND or 5.5V, VIN=10V) | IIN2 | 0.075 | mA | DE=GND, VCC=GND or 5.5V, VIN=10V | 3 | ||
| Input Current (A, B) | IIN1 | -1 | 1 | μA | 3 | ||
| Transmitter Short-Circuit Output Current (VCC ≤ 3.6V) | IOSD | -100 | 100 | mA | -7V ≤ VOUT ≤ 10V, VCC ≤ 3.6V | 3 | |
| Transmitter Short-Circuit Output Current (VCC ≤ 5.5V) | IOSD | -110 | 110 | mA | -7V ≤ VOUT ≤ 10V, VCC ≤ 5.5V | 3 | |
| Receiver Differential Threshold Voltage | VTH | -200 | -130 | -50 | mV | -7V≤VCM≤10V | 3 |
| Receiver Output Low Voltage | VOL | 0.4 | V | IO=2.2mA, VID=-450mV | 3 | ||
| Three-State Output Current | IOZR | -1 | 1 | μA | 0≤VO≤VCC | 3 | |
| Receiver Input Resistance | RIN | 96 | kΩ | -7V≤VCM≤10V | 3 | ||
| Receiver Output Short-Circuit Current (VCC ≤ 3.6V) | IOSR | -20 | 50 | mA | 0V≤VRO≤VCC, VCC ≤ 3.6V | 3 | |
| Receiver Output Short-Circuit Current (VCC ≤ 5.5V) | IOSR | -40 | 110 | mA | 0V≤VRO≤VCC, VCC ≤ 5.5V | 3 | |
| Supply Current (VCC ≤ 3.6V, DE = VCC) | ICC | 90 | 100 | µA | VCC ≤ 3.6V, no load, RE=DI=GND or VCC, VA=VB=0, DE = VCC | 3 | |
| Supply Current (VCC ≤ 3.6V, DE = GND) | ICC | 1.6 | 2 | µA | VCC ≤ 3.6V, no load, RE=DI=GND or VCC, VA=VB=0, DE = GND | 3 | |
| Supply Current (VCC ≤ 5.5V, DE = VCC) | ICC | 110 | 130 | µA | VCC ≤ 5.5V, no load, RE=DI=GND or VCC, VA=VB=0, DE = VCC | 3 | |
| Supply Current (VCC ≤ 5.5V, DE = GND) | ICC | 1.8 | 2.2 | µA | VCC ≤ 5.5V, no load, RE=DI=GND or VCC, VA=VB=0, DE = GND | 3 | |
| Transmitter Input to Output Propagation Delay | tDPLH, tDPHL | 1.4 | 2 | μs | Fig.3 and Fig.5, RDIFF=1.5KΩ, CL1=CL2=100pF | 4 | |
| Transmitter Output Skew | tDSKEW | 0.025 | μs | Fig.3 and Fig.5, RDIFF=1.5KΩ, CL1=CL2=100pF | 4 | ||
| Transmitter Rise or Fall Time | tDR , tDF | 0.75 | 1.34 | 1.75 | μs | Fig.3 and Fig.5, RDIFF=1.5KΩ, CL1=CL2=100pF | 4 |
| Transmitter Enable Time to Output High | tDZH | 1.5 | 6 | μs | Fig.4 and Fig.6, CL=100pF, S2 closed, S1 open | 4 | |
| Transmitter Enable Time to Output Low | tDZL | 0.86 | 4 | μs | Fig.4 and Fig.6, CL=100pF, S1 closed, S2 open | 4 | |
| Transmitter Disable Time from Low | tDLZ | 0.4 | 1.5 | μs | Fig.4 and Fig.6, CL=15pF, S1 closed, S2 open | 4 | |
| Transmitter Disable Time from High | tDHZ | 0.6 | 1.5 | μs | Fig.4 and Fig.6, CL=15pF, S2 closed, S1 open | 4 | |
| Receiver Input to Output Propagation Delay (low-to-high) | tRPLH | 0.6 | 1.2 | μs | Fig.7 and Fig.9, /VID/=2.0V, CL = 15pF | 4 | |
| Receiver Input to Output Propagation Delay (high-to-low) | tRPHL | 0.7 | 1.2 | μs | Fig.7 and Fig.9, /VID/=2.0V, CL = 15pF | 4 | |
| Differential Receiver Skew | tRSKEW | 0.1 | μs | Fig.7 and Fig.9, /VID/=2.0V | 4 | ||
| Data Rate | fMAX | 64 | kbps | Fig.9, CL = 100pF | 4 | ||
| Receiver Enable Time to Output Low | tRZL | 70 | 500 | μs | Fig.2 and Fig.8, CL=15pF, S1 closed, S2 open | 4 | |
| Receiver Enable Time to Output High | tRZH | 85 | 500 | ns | Fig.2 and Fig.8, CL=15pF, S2 closed, S1 open | 4 | |
| Receiver Disable Time from Low | tRLZ | 50 | 200 | ns | Fig.2 and Fig.8, CL=15pF, S1 closed, S2 open | 4 | |
| Receiver Disable Time from High | tRHZ | 35 | 200 | ns | Fig.2 and Fig.8, CL=15pF, S2 closed, S1 open | 4 | |
| Differential Transmitter Output (RS-485, VCC = 5V) | VOD2 | 1.8 | V | Fig.1, R=27Ω (RS-485), VCC = 5V, TA = +25°C | 3 | ||
| Receiver Input Hysteresis | ΔVTH | 30 | mV | VCM = 0 | 3 | ||
| DI Input Hysteresis | VHYS | 100 | mV | 3 | |||
| Supply Voltage (recommended operating) | VCC | 2.5 | 5.5 | V | 2 | ||
| Common-Mode Input Voltage Range | -7 | 10 | V | 1 |
CAD (KiCad official)
- Symbol:
GM3471ESA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
gm3471esa-etched.step/gm3471esa-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);gm3471esa.step/gm3471esa.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GATEMODE datasheet (10 pp, sha256
205d1a69980866a2, 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).
# GM3471ESA
**GATEMODE** · RS-485 / RS-422 ICs · SOP-8
GM3471ESA from GATEMODE, 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: with RE low, RO is high when (A-B) ≥ -50mV and low when (A-B) ≤ -200mV; RO is high impedance when RE is high. |
| 2 | RE | input | Receiver output enable: drive RE low to enable RO and drive RE high to put RO in high impedance. |
| 3 | DE | input | Driver output enable: drive DE high to enable the driver outputs; the outputs are high impedance when DE is low. |
| 4 | DI | input | Driver input: driving DI low forces the noninverting output low and the inverting output high, and driving DI high forces the noninverting output high and the inverting output low. |
| 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 | Supply voltage, 2.5V ≤ VCC ≤ 5.5V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GATEMODE |
| 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 | | | 7 | V | | 2 |
| A,B Driver Output/Receiver Input Voltage | | -10.5 | | 10.5 | V | | 2 |
| Operating Temperature Range | TOP | -40 | | 85 | °C | | 2 |
| Storage Temperature Range | TSTO | -65 | | 160 | °C | | 2 |
| Lead Temperature (soldering, 10 sec) | TL | | | 300 | °C | soldering, 10 sec | 2 |
| Differential Transmitter Output (RS-422) | VOD2 | 1.8 | | 3.6 | V | Fig.1, R=750Ω (RS-422) | 3 |
| Differential Transmitter Output (RS-485) | VOD2 | 0.6 | | 1.2 | V | Fig.1, R=27Ω (RS-485) | 3 |
| Change in Magnitude of Differential Output Voltage | ΔVOD | | | 0.2 | V | Fig.1, R=750Ω or R=27Ω | 3 |
| Change in Magnitude of Common-Mode Output Voltage | ΔVOC | | | 0.2 | V | Fig.1, R=750Ω or R=27Ω | 3 |
| Input Current (DE=GND, VCC=GND or 5.5V, VIN=-7V) | IIN2 | -0.045 | | | mA | DE=GND, VCC=GND or 5.5V, VIN=-7V | 3 |
| Input Current (DE=GND, VCC=GND or 5.5V, VIN=10V) | IIN2 | | | 0.075 | mA | DE=GND, VCC=GND or 5.5V, VIN=10V | 3 |
| Input Current (A, B) | IIN1 | -1 | | 1 | μA | | 3 |
| Transmitter Short-Circuit Output Current (VCC ≤ 3.6V) | IOSD | -100 | | 100 | mA | -7V ≤ VOUT ≤ 10V, VCC ≤ 3.6V | 3 |
| Transmitter Short-Circuit Output Current (VCC ≤ 5.5V) | IOSD | -110 | | 110 | mA | -7V ≤ VOUT ≤ 10V, VCC ≤ 5.5V | 3 |
| Receiver Differential Threshold Voltage | VTH | -200 | -130 | -50 | mV | -7V≤VCM≤10V | 3 |
| Receiver Output Low Voltage | VOL | | | 0.4 | V | IO=2.2mA, VID=-450mV | 3 |
| Three-State Output Current | IOZR | -1 | | 1 | μA | 0≤VO≤VCC | 3 |
| Receiver Input Resistance | RIN | 96 | | | kΩ | -7V≤VCM≤10V | 3 |
| Receiver Output Short-Circuit Current (VCC ≤ 3.6V) | IOSR | -20 | | 50 | mA | 0V≤VRO≤VCC, VCC ≤ 3.6V | 3 |
| Receiver Output Short-Circuit Current (VCC ≤ 5.5V) | IOSR | -40 | | 110 | mA | 0V≤VRO≤VCC, VCC ≤ 5.5V | 3 |
| Supply Current (VCC ≤ 3.6V, DE = VCC) | ICC | | 90 | 100 | µA | VCC ≤ 3.6V, no load, RE=DI=GND or VCC, VA=VB=0, DE = VCC | 3 |
| Supply Current (VCC ≤ 3.6V, DE = GND) | ICC | | 1.6 | 2 | µA | VCC ≤ 3.6V, no load, RE=DI=GND or VCC, VA=VB=0, DE = GND | 3 |
| Supply Current (VCC ≤ 5.5V, DE = VCC) | ICC | | 110 | 130 | µA | VCC ≤ 5.5V, no load, RE=DI=GND or VCC, VA=VB=0, DE = VCC | 3 |
| Supply Current (VCC ≤ 5.5V, DE = GND) | ICC | | 1.8 | 2.2 | µA | VCC ≤ 5.5V, no load, RE=DI=GND or VCC, VA=VB=0, DE = GND | 3 |
| Transmitter Input to Output Propagation Delay | tDPLH, tDPHL | | 1.4 | 2 | μs | Fig.3 and Fig.5, RDIFF=1.5KΩ, CL1=CL2=100pF | 4 |
| Transmitter Output Skew | tDSKEW | | | 0.025 | μs | Fig.3 and Fig.5, RDIFF=1.5KΩ, CL1=CL2=100pF | 4 |
| Transmitter Rise or Fall Time | tDR , tDF | 0.75 | 1.34 | 1.75 | μs | Fig.3 and Fig.5, RDIFF=1.5KΩ, CL1=CL2=100pF | 4 |
| Transmitter Enable Time to Output High | tDZH | | 1.5 | 6 | μs | Fig.4 and Fig.6, CL=100pF, S2 closed, S1 open | 4 |
| Transmitter Enable Time to Output Low | tDZL | | 0.86 | 4 | μs | Fig.4 and Fig.6, CL=100pF, S1 closed, S2 open | 4 |
| Transmitter Disable Time from Low | tDLZ | | 0.4 | 1.5 | μs | Fig.4 and Fig.6, CL=15pF, S1 closed, S2 open | 4 |
| Transmitter Disable Time from High | tDHZ | | 0.6 | 1.5 | μs | Fig.4 and Fig.6, CL=15pF, S2 closed, S1 open | 4 |
| Receiver Input to Output Propagation Delay (low-to-high) | tRPLH | | 0.6 | 1.2 | μs | Fig.7 and Fig.9, /VID/=2.0V, CL = 15pF | 4 |
| Receiver Input to Output Propagation Delay (high-to-low) | tRPHL | | 0.7 | 1.2 | μs | Fig.7 and Fig.9, /VID/=2.0V, CL = 15pF | 4 |
| Differential Receiver Skew | tRSKEW | | | 0.1 | μs | Fig.7 and Fig.9, /VID/=2.0V | 4 |
| Data Rate | fMAX | | | 64 | kbps | Fig.9, CL = 100pF | 4 |
| Receiver Enable Time to Output Low | tRZL | | 70 | 500 | μs | Fig.2 and Fig.8, CL=15pF, S1 closed, S2 open | 4 |
| Receiver Enable Time to Output High | tRZH | | 85 | 500 | ns | Fig.2 and Fig.8, CL=15pF, S2 closed, S1 open | 4 |
| Receiver Disable Time from Low | tRLZ | | 50 | 200 | ns | Fig.2 and Fig.8, CL=15pF, S1 closed, S2 open | 4 |
| Receiver Disable Time from High | tRHZ | | 35 | 200 | ns | Fig.2 and Fig.8, CL=15pF, S2 closed, S1 open | 4 |
| Differential Transmitter Output (RS-485, VCC = 5V) | VOD2 | | 1.8 | | V | Fig.1, R=27Ω (RS-485), VCC = 5V, TA = +25°C | 3 |
| Receiver Input Hysteresis | ΔVTH | | 30 | | mV | VCM = 0 | 3 |
| DI Input Hysteresis | VHYS | | 100 | | mV | | 3 |
| Supply Voltage (recommended operating) | VCC | 2.5 | | 5.5 | V | | 2 |
| Common-Mode Input Voltage Range | | -7 | | 10 | V | | 1 |
## CAD (KiCad official)
- Symbol: `GM3471ESA`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `gm3471esa-etched.step` / `gm3471esa-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gm3471esa.step` / `gm3471esa.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [GATEMODE datasheet](docs/gm3471esa-datasheet.pdf) (10 pp, sha256 `205d1a69980866a2`, retrieved 2026-10-17, tier: lcsc)
- **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](docs/gm3471esa-datasheet.pdf)