Overview
The WS1820T is a RFID IC made by wisesun in a QFN-16 package with 17 pins.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:WS1820T, from EasyEDA) and its footprint (EasyEDA_Cloud:WQFN-16_L3.0-W3.0-P0.50-BL-EP1.7, from EasyEDA), ready for a KiCad board. 2,257 are in stock at JLCPCB (part C19185752).
Symbol
Footprint
Pinout
17| Pin | Name | Type |
|---|---|---|
| 1 | DVDD | Unspecified |
| 2 | NRSTPD | Unspecified |
| 3 | NC | Unspecified |
| 4 | TX1 | Unspecified |
| 5 | TVDD | Unspecified |
| 6 | TX2 | Unspecified |
| 7 | AVDD | Unspecified |
| 8 | VMID | Unspecified |
| 9 | RX | Unspecified |
| 10 | OSCIN | Unspecified |
| 11 | OSCOUT | Unspecified |
| 12 | MISO | Unspecified |
| 13 | MOSI | Unspecified |
| 14 | SCK | Unspecified |
| 15 | NSS | Unspecified |
| 16 | IRQ | Unspecified |
| 17 | VSS | Unspecified |
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8
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Questions
Is there a KiCad symbol and footprint for the WS1820T?
Yes. The symbol is EasyEDA_Cloud:WS1820T and the footprint EasyEDA_Cloud:WQFN-16_L3.0-W3.0-P0.50-BL-EP1.7, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the WS1820T?
QFN-16, with 17 pins. Its footprint is drawn on this page.
Where is the WS1820T datasheet?
wisesun publishes it: the Datasheet link on this page opens it.
Where can I order the WS1820T?
JLCPCB lists it as part C19185752, with 2,257 in stock; the sellers' links on this page open their listings.
What can replace the WS1820T?
Parts like it in the library: the ST25DV04KC-IE6S3 by STMicroelectronics, the MFRC522 by JSMSEMI, the CLRC66303HNY by NXP Semiconductors and the PN7150B0HN/C11002Y by NXP Semiconductors. Check their datasheets: a part that fits the footprint may still differ in its ratings.