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Contents

README

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ES2631

Innosen · Buffer/Driver/Transceiver · SOP-16

ES2631 from Innosen, in a SOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1A input RS422 driver 1 data input (TTL).
2 1Y output Driver 1 non-inverting (in-phase) differential output.
3 1Z output Driver 1 inverting (out-of-phase) differential output.
4 G input Driver enable, active high. Together with GN controls whether all four drivers are enabled or held in high-impedance state.
5 2Z output Driver 2 inverting (out-of-phase) differential output.
6 2Y output Driver 2 non-inverting (in-phase) differential output.
7 2A input RS422 driver 2 data input (TTL).
8 GND power_in Device ground reference.
9 3A input RS422 driver 3 data input (TTL).
10 3Y output Driver 3 non-inverting (in-phase) differential output.
11 3Z output Driver 3 inverting (out-of-phase) differential output.
12 GN input Driver enable, active low. Together with G controls whether all four drivers are enabled or held in high-impedance state.
13 4Z output Driver 4 inverting (out-of-phase) differential output.
14 4Y output Driver 4 non-inverting (in-phase) differential output.
15 4A input RS422 driver 4 data input (TTL).
16 VCC power_in Supply pin. Recommended VCC = 4.5V to 5.5V (typ 5V). Bypass with 0.1μF near the pin.

Key specifications

Parameter Value
Manufacturer Innosen
Package SOP-16
Category Logic ICs
Pins 16

Ordering variants

Same part, different packaging or reel option.

  • ES2631

CAD (KiCad official)

  • Symbol: ES2631
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Innosen datasheet (7 pp, sha256 e0a0454a32a630a5, retrieved 2026-08-17, 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: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF