Skip to the content
PCBKitNew board
KY3243LEEY on a board, in 3D

KY3243LEEY

Keysemi

250Kbps 3 3V~5.5V 5 Transceiver TSSOP-28 RS232 ICs ROHS

Extended
DatasheetJLCPCBLCSCkeysemi/KY3243LEEY
Category
RS232 ICs
Package
TSSOP-28
Pins
28

Overview

The KY3243LEEY is a RS232 IC made by Keysemi in a TSSOP-28 package with 28 pins. 250Kbps 3 3V~5.5V 5 Transceiver TSSOP-28 RS232 ICs ROHS.

PCBKit's library has its footprint (Package_SO:TSSOP-28_4.4x9.7mm_P0.65mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C428901).

Symbol

The library has no symbol for this part yet.

Footprint

12345678910111213141516171819202122232425262728
Package_SO:TSSOP-28_4.4x9.7mm_P0.65mmFrom KiCad's library

Parameters

10
Data Rate
250Kbps
ESD Protect
±15kV
Features
Low-power mode, Wake-up function
Number of Drivers
3
Number of Receivers
5
Operating Temperature
0℃~+70℃
Quiescent Supply Current
0.5mA
Type
Transceiver
Voltage - Supply
3V~5.5V
charge pump
Yes

Order codes

1

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/keysemi/KY3243LEEY" title="KY3243LEEY in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/keysemi/KY3243LEEY.jpg" alt="KY3243LEEY" width="1200" height="900">
A picture that opens the part, for a README
[![KY3243LEEY](https://pcbkit.io/embed/parts/keysemi/KY3243LEEY.jpg?size=s)](https://pcbkit.io/parts/keysemi/KY3243LEEY)

Questions

Is there a KiCad symbol and footprint for the KY3243LEEY?

Yes. 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 KY3243LEEY?

TSSOP-28, with 28 pins. Its footprint is drawn on this page.

Where is the KY3243LEEY datasheet?

Keysemi publishes it: the Datasheet link on this page opens it.

Where can I order the KY3243LEEY?

JLCPCB lists it as part C428901, with 0 in stock; the sellers' links on this page open their listings.

What can replace the KY3243LEEY?

Parts like it in the library: the MAX3243EIPW by Texas Instruments, the ADM3311EARUZ-REEL by Analog Devices, the TRSF3243IPW by Texas Instruments and the ICL3243ECVZ by Renesas Electronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

5