LPM232-B Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – Serial Converter

LPM232-B Serial Converter
www.lpelettronica.it
Doc. Rev.0 (30/12/10)
Features
•
All-In-One Serial Converter RS232-CMOS/TTL.
•
Wide Supply Voltage Range 3.0V to 5.5V.
•
Data rate up to 250kbps.
•
No external components required.
•
Low Shutdown current consumption 1µA.
•
Enable pin to disable TX output (three-state).
•
Very small footprint (39x14.6mm).
•
Pitch 2.54mm (100mils) for easy mouting on prototype
boards.
•
Typical Application: connection of microcontroller to PC
through RS232 serial cable.
Description
LPM232-B is a special serial connector with built-in RS232-CMOS/TTL converter.
The LPM232 size is similar to the one of a standard RS232 connector (lateral module’s pin added), but it
incorporates also the RS232-CMOS/TTL conversion logic so you save a lot of space on the board.
The module allows to connect directly an RS232 device (i.e. a PC) to a CMOS/TTL device (i.e. a microcontroller).
It is provided also with /SHDWN pin that puts the module in Shutdown mode for very low power consumption.
There is also an /EN pin that if pulled high disables the output lines of the module RS232-TX and RS232-RTS
putting them in three-state.
Typical Application
VCC
VCC
/EN
/SHDWN
LPM 232-B
RS232-TX
RS232-RX
RS232-RTS
RS232-CTS
M ICROCONTROLLER
UART-RX
UART-TX
UART-RTS
UART-CTS
GND
GND
Figure 1 – Typical Application schematic