MC145583

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC145583/D MC145583 Product Preview 3.3 Volt Only Driver/Receiver with an Integrated Standby Mode 28 1 DW SUFFIX SOG PACKAGE CASE 751F EIA–232–E and CCITT V.28 The MC145583 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. 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 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 the Input Level on Rx1 to Logic Output Level on RIMON at Standby Mode 28 1 VF SUFFIX SSOP CASE 940J ORDERING INFORMATION MC145583DW MC145583VF SOG Package SSOP PIN ASSIGNMENT C5+ GND C5– RIMON VSS STB Rx1 Rx2 Rx3 Tx1 Rx4 Tx2 Rx5 Tx3 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– ...