ML145583

www.DataSheet4U.com ML145583 3.3 Volt Only Driver/Receiver with an Integrated Standby Mode RS 232/EIA–232–E and CCITT V.28 Legacy Device: Motorola MC145583 The ML145583 is a CMOS transceiver composed of three drivers and five receivers that fulfills the electrical specifications of EIA–232–E, EIA–562, and CCITT V .28 while operating from a single + 3.3 or + 5.0 V power supply. This transceiver is a high–performance, low–power consumption device that is equipped with a standby function. A voltage tripler and inverter converts the + 3.3 V to ± 8.8 V , or a voltage doubler and inverter converts the + 5.0 V to ± 8.8 V . This is accomplished through an on–chip 40 kHz oscillator and five inexpensive external capacitors. FEATURES Drivers: ± 5 V Minimum Output Swing at 3.3 or 5.0 V Power Supply 300 Ω Power–Off Impedance Output Current Limiting Three–State Outputs During Standby Mode C5+ 28 1 SOIC 28W = -7P SOG PACKAGE CASE 751F PACKAGE SOIC 28W MOTOROLA MC145583DW LANSDALE ML145583-7P Note: Lansdale lead free (Pb) product, as it becomes available, will be identified by a part number prefix change from ML to MLE. PIN ASSIGNMENT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 RING MONITOR CIRCUIT (INVERTING) 28 27 26 25 24 23 22 21 20 19 18 17 16 15 C2+ VCC C2– C1+ C1– VDD DO1 DO2 DO3 DI1 DO4 DI2 DO5 DI3 Receivers: ± 25 V Input Range 3 to 7 kΩ Input Impedance 0.8 V Hysteresis for Enhanced Noise Immunity Three–State Outputs During Standby Mode Ring Monitor Circuit: Invert th...