器件名称: LPM232-B
功能描述: Serial Converter
文件大小: 134.32KB 共4页
简 介: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 1A. 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 LPM232-B RS232-TX RS232-RX RS232-RTS RS232-CTS MICROCONTROLLER UART-RX UART-TX UART-RTS UART-CTS
GND
GND
Figure 1 – Typical Application schematic
LPM232-B
www.lpelettronica.it
Pin Diagram
1 2 3 4
8 7 6 5
Figure 2 – Pin Diagram (Top View)
Pin Description
Pin number 1 2 3 4 5 Pin Name RS232-TX RS232-RX RS232……
