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WK2168-IQPG

Public Made by Adom

by adom

WEIKAI Interface - Specialized, QFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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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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Contents

README

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WK2168-IQPG

WEIKAI · Interface - Specialized · QFP-48(7x7)

WK2168-IQPG from WEIKAI, in a QFP-48(7x7). 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 OSCI input Crystal oscillator input; a 1M resistor must be connected in parallel with the crystal.
2 OSCO output Crystal oscillator output.
3 MP3 bidirectional Multiplexed main-interface pin: CS (active low) in parallel mode, SSEL (active low) in SPI, IA1 in IIC, IR in UART mode (IR=0 infrared, IR=1 normal, default high).
4 MP2 bidirectional Multiplexed main-interface pin: WR (active low) in parallel mode, SCLK in SPI, SCL in IIC, MRX (main UART receive) in UART mode.
5 MP1 bidirectional Multiplexed main-interface pin: RD (active low) in parallel mode, MOSI in SPI, IA0 in IIC, MTX (main UART transmit) in UART mode.
6 MP0 bidirectional Multiplexed main-interface pin: AD in parallel mode (AD=0 write register address, AD=1 write register data), MISO in SPI, SDA in IIC, NC in UART mode.
7 NC unconnected No connection.
8 NC unconnected No connection.
9 NC unconnected No connection.
10 NC unconnected No connection.
11 NC unconnected No connection.
12 DAT7 bidirectional Parallel bus data pin; usable as GPIO when the main interface is another mode.
13 DAT6 bidirectional Parallel bus data pin; usable as GPIO when the main interface is another mode.
14 DAT5 bidirectional Parallel bus data pin; usable as GPIO when the main interface is another mode.
15 DAT4 bidirectional Parallel bus data pin; usable as GPIO when the main interface is another mode.
16 DAT3 bidirectional Parallel bus data pin; usable as GPIO when the main interface is another mode.
17 DAT2 bidirectional Parallel bus data pin; usable as GPIO when the main interface is another mode.
18 DAT1 bidirectional Parallel bus data pin; usable as GPIO when the main interface is another mode.
19 DAT0 bidirectional Parallel bus data pin; usable as GPIO when the main interface is another mode.
20 RTS4 output Sub-UART 4 Request To Send, active low; also controls RS-485 transceiver direction in RS-485 auto mode.
21 RX4 input Sub-UART 4 serial data input.
22 TX4 output Sub-UART 4 serial data output.
23 CTS4 input Sub-UART 4 Clear To Send, active low.
24 RSTN input Hardware reset input, active low.
25 VCC power_in Power supply, 2.5V to 5.0V operating voltage.
26 IRQ output Interrupt output, active low; external pull-up recommended, typically 5.1K.
27 CTS2 input Sub-UART 2 Clear To Send, active low.
28 TX2 output Sub-UART 2 serial data output.
29 RX2 input Sub-UART 2 serial data input.
30 RTS2 output Sub-UART 2 Request To Send, active low; also controls RS-485 transceiver direction in RS-485 auto mode.
31 GND power_in Power ground.
32 MD0 input Main interface mode select bit 0 (MD1 MD0: 00 SPI, 01 8-bit parallel, 10 IIC, 11 UART); internal pull-up, floating reads 1.
33 MD1 input Main interface mode select bit 1 (MD1 MD0: 00 SPI, 01 8-bit parallel, 10 IIC, 11 UART); internal pull-up, floating reads 1.
34 NC unconnected No connection.
35 NC unconnected No connection.
36 NC unconnected No connection.
37 CTS1 input Sub-UART 1 Clear To Send, active low.
38 TX1 output Sub-UART 1 serial data output.
39 RX1 input Sub-UART 1 serial data input.
40 RTS1 output Sub-UART 1 Request To Send, active low; also controls RS-485 transceiver direction in RS-485 auto mode.
41 CTS3 input Sub-UART 3 Clear To Send, active low.
42 TX3 output Sub-UART 3 serial data output.
43 RX3 input Sub-UART 3 serial data input.
44 RTS3 output Sub-UART 3 Request To Send, active low; also controls RS-485 transceiver direction in RS-485 auto mode.
45 VCC power_in Power supply, 2.5V to 5.0V operating voltage.
46 NC unconnected No connection.
47 NC unconnected No connection.
48 NC unconnected No connection.

Key specifications

Parameter Value
Manufacturer WEIKAI
Package QFP-48(7x7)
Category Interface ICs
Pins 48

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 (2.5V column) VCC 2.3 2.7 V VCC=2.5V column 42
Supply voltage (3.0V column) VCC 3 3.6 V VCC=3.0V column 42
Supply voltage (5.0V column) VCC 4.5 5 V VCC=5.0V column 42
Operating current (2.5V) ICC 0.8 2 mA 3.6864MHz crystal, no load, VCC=2.5V 42
Operating current (3.0V) ICC 1 2 mA 3.6864MHz crystal, no load, VCC=3.0V 42
Operating current (5.0V) ICC 2 3 mA 3.6864MHz crystal, no load, VCC=5.0V 42
Sleep current (2.5V) ICCSL 150 uA VCC=2.5V 42
Sleep current (3.0V) ICCSL 200 uA VCC=3.0V 42
Sleep current (5.0V) ICCSL 460 uA VCC=5.0V 42
Input high level (2.5V) VIH 1.8 V VCC=2.5V; max printed as VCC 42
Input high level (3.0V) VIH 2 V VCC=3.0V; max printed as VCC 42
Input high level (5.0V) VIH 3.6 V VCC=5.0V; max printed as VCC 42
Input low level (2.5V) VIL 0.6 V VCC=2.5V 42
Input low level (3.0V) VIL 0.9 V VCC=3.0V 42
Input low level (5.0V) VIL 1.1 V VCC=5.0V 42
Input leakage current IIL -10 10 uA VI=5.0 or 0V; all VCC columns 42
Input capacitance CI 5 pF all VCC columns 42
Output high level (2.5V) VOH 1.9 V IOH=3mA, VCC=2.5V 42
Output high level (3.0V) VOH 2.4 V IOH=3mA, VCC=3.0V 42
Output high level (5.0V) VOH 4.5 V IOH=3mA, VCC=5.0V 42
Output low level (2.5V) VOL 0.4 V IOL=-3mA, VCC=2.5V 42
Output low level (3.0V) VOL 0.4 V IOL=-3mA, VCC=3.0V 42
Output low level (5.0V) VOL 0 0.4 V IOL=-3mA, VCC=5.0V 42
Output leakage current IOL -10 10 uA all VCC columns 42
Output capacitance Co 5 pF all VCC columns 42
Crystal frequency (2.5V) FOSI 16 MHz VCC=2.5V 42
Crystal frequency (3.0V) FOSI 24 MHz VCC=3.0V 42
Crystal frequency (5.0V) FOSI 32 MHz VCC=5.0V 42
Supply voltage VCC -0.5 5 V 42
Input voltage VI -0.5 5.5 V 42
Output voltage VO -0.5 5.5 V 42
Operating temperature TO -40 85 °C 42
Storage temperature TSTG -65 150 °C 42
Operating temperature (ordering table) -45 85 ℃ WK2168-IQPG industrial grade 3

CAD (KiCad official)

  • Symbol: WK2168-IQPG
  • Footprint: Package_QFP:LQFP-48_7x7mm_P0.5mm
  • 3D model: QFP-48(7x7) (KiCad packages3D, STEP)
  • 3D model files: wk2168-iqpg-etched.step / wk2168-iqpg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); wk2168-iqpg.step / wk2168-iqpg.glb are the bare package body.

Provenance

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

  • Datasheet: WEIKAI datasheet (44 pp, sha256 e8c36a6a252f22de, retrieved 2026-10-22, 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: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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