

Overview
The SP3243EEY-L is a RS232 IC made by MaxLinear in a TSSOP-28 package with 28 pins. -40℃~+85℃ 120Kbps 3 3V~5.5V 5 Transceiver TSSOP-28 RS232 ICs ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SP3243EEY-L_TR, from EasyEDA) and its footprint (Package_SO:TSSOP-28_4.4x9.7mm_P0.65mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1544235). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
8- Data Rate
- 120Kbps
- Driver/receiver
- 3/5
- Number of Drivers
- 3
- Number of Receivers
- 5
- Operating Temperature
- -40℃~+85℃
- Type
- Transceiver
- Types
- transceiver
- Voltage - Supply
- 3V~5.5V
Order codes
1- SP3243EEY-LLCSC C1544235
Pinout
28| Pin | Name | Type |
|---|---|---|
| 1 | C2+ | Unspecified |
| 2 | C2- | Unspecified |
| 3 | V- | Unspecified |
| 4 | R1IN | Unspecified |
| 5 | R2IN | Unspecified |
| 6 | R3IN | Unspecified |
| 7 | R4IN | Unspecified |
| 8 | R5IN | Unspecified |
| 9 | T1OUT | Unspecified |
| 10 | T2OUT | Unspecified |
| 11 | T3OUT | Unspecified |
| 12 | T3IN | Unspecified |
| 13 | T2IN | Unspecified |
| 14 | T1IN | Unspecified |
| 15 | R5OUT | Unspecified |
| 16 | R4OUT | Unspecified |
| 17 | R3OUT | Unspecified |
| 18 | R2OUT | Unspecified |
| 19 | R1OUT | Unspecified |
| 20 | R2OUT# | Unspecified |
| 21 | STATUS# | Unspecified |
| 22 | SHUTDOWN# | Unspecified |
| 23 | ONLINE# | Unspecified |
| 24 | C1- | Unspecified |
| 25 | GND | Unspecified |
| 26 | VCC | Unspecified |
| 27 | V+ | Unspecified |
| 28 | C1+ | Unspecified |
Open-source boards using it
All 1- 4 layers106.7 × 83.8 mm

Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/maxlinear/SP3243EEY-L" title="SP3243EEY-L in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/maxlinear/SP3243EEY-L.jpg" alt="SP3243EEY-L" width="1200" height="900">[](https://pcbkit.io/parts/maxlinear/SP3243EEY-L)Questions
Is there a KiCad symbol and footprint for the SP3243EEY-L?
Yes. The symbol is EasyEDA_Cloud:SP3243EEY-L_TR and the footprint Package_SO:TSSOP-28_4.4x9.7mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SP3243EEY-L?
TSSOP-28, with 28 pins. Its footprint is drawn on this page.
Where is the SP3243EEY-L datasheet?
MaxLinear publishes it: the Datasheet link on this page opens it.
Where can I order the SP3243EEY-L?
JLCPCB lists it as part C1544235, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SP3243EEY-L?
Parts like it in the library: the SP3243EBEY-L/TR by MaxLinear, the GM3243ETA by GATEMODE, the SP336EEY-L/TR by MaxLinear and the MAX3243ECPW by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the SP3243EEY-L?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8SP3243EBEY-L/TR
TSSOP-28-40℃~+85℃ 1mA 250Kbps 3 3V~5.5V 5 Transceiver Yes ±15kV TSSOP-28 RS232 ICs ROHSMaxLinearRS232 ICsGM3243ETA
TSSOP-28RS232 ICsGATEMODESP336EEY-L/TR
TSSOP-28-40℃~+85℃ 250Kbps 3.3V、5V 4 4 Transceiver TSSOP-28 RS232 ICs ROHSMaxLinearRS232 ICsMAX3243ECPW
TSSOP-280℃~+70℃ 1mA 3 3V~5.5V 5 500Kbps Transceiver Yes ±15kV TSSOP-28 RS232 ICs ROHSTexas InstrumentsRS232 ICsUM3243EEUS
TSSOP-28-40℃~+85℃ 1mA 250Kbps 3 3V~5.5V 5 Transceiver Yes ±15kV TSSOP-28 RS232 ICs ROHSUnion SemiconductorRS232 ICsADM213EARUZ-REEL7
TSSOP-28-40℃~+85℃ 13mA 230Kbps 4 4.5V~5.5V 5 Transceiver Yes ±15kV TSSOP-28 RS232 ICs ROHSAnalog DevicesRS232 ICsWS3243FCY
TSSOP-28-40℃~+85℃ 1Mbit/s 1mA 3 3V~5.5V 5 Transceiver Yes ±15kV TSSOP-28 RS232 ICs ROHSNJGWRS232 ICsICL3243EIVZ
TSSOP-28-40℃~+85℃ 250Kbps 3 3V~5.5V 5 Transceiver Yes ±15kV TSSOP-28 RS232 ICs ROHSRenesas ElectronicsRS232 ICs