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WK2124-ISSG

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WEIKAI Interface - Specialized, SSOP-20-208mil. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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WK2124-ISSG

WEIKAI · Interface - Specialized · SSOP-20-208mil

WK2124-ISSG from WEIKAI, in a SSOP-20-208mil. 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 GND power_in Ground reference.
2 SCS input SPI chip select input (SSEL), active low. Asserted by the SPI master to select the WK2124.
3 SCLK input SPI clock input from the master. WK2124 operates in SPI slave mode, SPI mode 0, up to 10 Mbit/s.
4 SDIN input SPI serial data input (MOSI) from the master.
5 SDOUT output SPI serial data output (MISO) to the master.
6 RX4 input UART sub-channel 4 serial data input.
7 TX4 output UART sub-channel 4 serial data output.
8 /RST input Hardware reset input, active low.
9 VCC power_in Positive supply, 2.5 V to 5.0 V.
10 /IRQ output Interrupt request output, active low. Open-drain style; datasheet recommends an external pull-up (~5.1 kΩ typical).
11 TX2 output UART sub-channel 2 serial data output.
12 RX2 input UART sub-channel 2 serial data input.
13 GND power_in Ground reference.
14 TX1 output UART sub-channel 1 serial data output.
15 RX1 input UART sub-channel 1 serial data input.
16 TX3 output UART sub-channel 3 serial data output.
17 RX3 input UART sub-channel 3 serial data input.
18 VCC power_in Positive supply, 2.5 V to 5.0 V.
19 OSCI input Crystal oscillator input. A 1 MΩ resistor should be placed in parallel with the crystal.
20 OSCO output Crystal oscillator output. Connects to the opposite terminal of the crystal from OSCI.

Key specifications

Parameter Value
Manufacturer WEIKAI
Package SSOP-20-208mil
Category Interface
Pins 20

Ordering variants

Same part, different packaging or reel option.

  • WK2124-ISSG

CAD (KiCad official)

  • Symbol: WK2124-ISSG
  • Footprint: Package_SO:SSOP-20_5.3x7.2mm_P0.65mm
  • 3D model: SSOP-20-208mil (KiCad packages3D, STEP)
  • 3D model files: wk2124-issg-etched.step / wk2124-issg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); wk2124-issg.step / wk2124-issg.glb are the bare package body.

Provenance

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

  • Datasheet: WEIKAI datasheet (21 pp, sha256 61ccd637c44923b3, 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