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MC145407DW-MC145407P-MC145407P.
5 Volt Only Driver / Recevier
Advance Information -
EIA–232–E and CCITT V.28The MC145407 is a silicon–gate CMOS IC that combines three drivers and
three receivers to fulfill the electrical specifications of EIA–232–E and CCITT
V.28 while operating from a single + 5 V power supply. A voltage doubler and
inverter convert the + 5 V to ± 10 V. This is accomplished through an on–board
20 kHz oscillator and four inexpensive external electrolytic capacitors. The
three drivers and three receivers of the MC145407 are virtually identical to
those of the MC145406. Therefore, for applications requiring more than three
drivers and/or three receivers, an MC145406 can be powered from an
MC145407, since the MC145407 charge pumps have been designed to
guarantee ± 5 V at the output of up to six drivers. Thus, the MC145407 provides
a high–performance, low–power, stand–alone solution or, with the MC145406,
a + 5 V only, high–performance two–chip solution.
Drivers ± 7.5 V Output Swing 300 Ω Power–Off Impedance Output Current Limiting TTL and CMOS Compatible Inputs Slew Rate Range Limited from 4 V/μs to 30 V/μs
Receivers + 25 V Input Range 3 to 7 kΩ Input Impedance 0.8 V Hysteresis for Enhanced Noise Immunity
Charge Pumps + 5 V to ± 10 V Dual Charge Pump Architecture Supply Outputs Capable of Driving Three On–Chip Drivers and Three
Drivers on the MC145406 Simultaneously Requires Four Inexpensive Electrolytic Capacitors On–Chip 20 kHz Oscillator
This document contains information on a new product. Specifications and information herein are subject to change without notice.
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SEMICONDUCTOR TECHNICAL DATA
