component
WL531
Public Made by Adomby adom
WL RF Transceiver ICs, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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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README
markdownWL531
WL · RF Transceiver ICs · SOP-8
WL531 from WL, in a SOP-8. 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 | ANT | input | RF signal input pin for 300MHz to 440MHz wireless signals. |
| 2 | GND | power_in | Ground pin. |
| 3 | VDD | power_in | Power supply pin, DC 2.0V to 5.5V operating voltage range. |
| 4 | SHUT | input | Shutdown mode control pin: connect to VDD for shutdown mode; connect to GND for normal operation with 3 ms startup time. |
| 5 | DO | output | Demodulated data signal output with data rate up to 10 kbps. |
| 6 | CTH | input | Reference signal mode selection input for internal data comparator with 145 kΩ source impedance. |
| 7 | NC | unconnected | No connection. |
| 8 | REFOSC | input | External reference oscillator input pin for crystal frequencies 4.8970 MHz to 6.7458 MHz with 15 pF load capacitance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WL |
| Package | SOP-8 |
| Category | RF And Wireless |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
WL531 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
wl531-etched.step/wl531-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);wl531.step/wl531.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: WL datasheet (7 pp, sha256
d9c3025f4b4d0da1, retrieved 2026-09-21, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).