
Rs232 sniffer board
CRImier/MyKiCad
My KiCad boards. Can't be bothered uploading individually anymore, so here you go.

The MAX3243CDB is a RS232 IC made by Texas Instruments in a SSOP-28-208mil package with 28 pins. 0℃~+70℃ 250Kbps 3 300uA 3V~5.5V 5 Transceiver Yes ±15kV SSOP-28 RS232 ICs ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:TRS3243CPW, from EasyEDA) and its footprint (Package_SO:SSOP-28_5.3x10.2mm_P0.65mm, from KiCad's library), ready for a KiCad board. 185 are in stock at JLCPCB (part C414614). 2 open-source boards in 2 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | C2+ | Unspecified |
| 2 | C2− | Unspecified |
| 3 | V− | Unspecified |
| 4 | RIN1 | Unspecified |
| 5 | RIN2 | Unspecified |
| 6 | RIN3 | Unspecified |
| 7 | RIN4 | Unspecified |
| 8 | RIN5 | Unspecified |
| 9 | DOUT1 | Unspecified |
| 10 | DOUT2 | Unspecified |
| 11 | DOUT3 | Unspecified |
| 12 | DIN3 | Unspecified |
| 13 | DIN2 | Unspecified |
| 14 | DIN1 | Unspecified |
| 15 | ROUT5 | Unspecified |
| 16 | ROUT4 | Unspecified |
| 17 | ROUT3 | Unspecified |
| 18 | ROUT2 | Unspecified |
| 19 | ROUT1 | Unspecified |
| 20 | ROUT2B | Unspecified |
| 21 | INVALID# | Unspecified |
| 22 | FORCEOFF# | Unspecified |
| 23 | FORCEON | Unspecified |
| 24 | C1− | Unspecified |
| 25 | GND | Unspecified |
| 26 | VCC | Unspecified |
| 27 | V+ | Unspecified |
| 28 | C1+ | Unspecified |

CRImier/MyKiCad
My KiCad boards. Can't be bothered uploading individually anymore, so here you go.

<iframe src="https://pcbkit.io/embed/parts/ti/MAX3243CDB" title="MAX3243CDB in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/MAX3243CDB.jpg" alt="MAX3243CDB" width="1200" height="900">[](https://pcbkit.io/parts/ti/MAX3243CDB)Yes. The symbol is EasyEDA_Cloud:TRS3243CPW and the footprint Package_SO:SSOP-28_5.3x10.2mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SSOP-28-208mil, with 28 pins. Its footprint is drawn on this page.
Texas Instruments publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C414614, with 185 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the SP213EEA-L/TR by MaxLinear, the SP3243EEA-L/TR by MaxLinear, the SP3243EBEA-L/TR by MaxLinear and the SP3243EUEA-L/TR by MaxLinear. Check their datasheets: a part that fits the footprint may still differ in its ratings.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.