Maxim

MAX233 - Multichannel RS232 Transceivers (20 pin DIP)

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Features Operate from Single +5V Power Supply (+5V and +12V---MAX231/MAX239) Low-Power Receive Mode in Shutdown (MAX223/MAX242) Meet All EIA/TIA-232E and V.28 Specifications Multiple Drivers and Receivers 3-State Driver and Receiver Outputs Open-Line Detection (MAX243)

Pin Description Pin Number Description 1 T2N-Transmittter 2 In 2 T1N-Transmitter 1 In 3 R1out-Reciver 1 Output 4 R1N-Reciver 1 In 5 T1out-Transmitter 1 Output 6 GND-Ground 7 Vcc- +5V Power Supply 8 (V+) C1+- Capacitor 1 + terminal 9 GND-Ground 10 (V-) CS-CHIPP SELECT 11 C2+(C2-) - Capacitor 2 - terminal 12 V-(C2+) - Capacitor 2 + terminal 13 C1-(C1+) - Capacitor 1 + terminal 14 V+(C1-)- Capacitor 1 - terminal 15 C2+ - Capacitor 2 + terminal 16 C2- -Capacitor 2- terminal 17 V- -Negative Supply 18 T2out-Transmitter 2 Output 19 R2N - Reciver 2 In 20 R2out - Reciver 2 Output

Pin Layout Dimensional Drawing

Technical Data Data Sheet Maxim - Data Sheet for MAX233 Application Notes