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GM3471ESA

Public Made by Adom

by 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.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 (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