3939AVR-3805 / AVC-3890LMS202IMXLMS202IMX Terminal FunctionPin Number Pin Name Pin Function1, 3 C1+, C1− External capacitor connection pins. Recommended external capacitor C1 = 0.1μF (6.3V)2 V+ Positive supply for TIA/EIA-232E drivers. Recommended external capacitor C4 = 0.1μF (6.3V)4, 5 C2+, C2− External capacitor connection pins. Recommended external capacitor C2 = 0.1μF (16V)6 V− Negative supply for TIA/EIA-232E drivers. Recommended external capacitor C3 = 0.1μF (16V)7, 14 T1out, T2out Transmitter output pins conform to TIA/EIA-232E levels. The typical transmitter output swing is± 8V when loaded 3kΩ load to ground. The open-circuit output voltage swings from (V+ − 0.6V)to V−8,13 R1in, R2in Receiver inputs accept TIA/EIA-2329, 12 R1out and R2out Receiver output pins are TTL/CMOS compatible10, 11 Tin1, Tin2 Transmitter input pins are TTL/CMOS compatible. Inputs of transmitter do not have pull-upresistors. Connect all unused transmitter inputs to ground15 GND Ground pin16 VS Power supply pin for the device, +5V ( ± 10%)www. xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299http://www.xiaoyu163.comhttp://www.xiaoyu163.com