145406中文資料飛利浦?jǐn)?shù)據(jù)手冊PDF規(guī)格書

DESCRIPTION

The MC145406 is a silicon-gate CMOS IC that combines 3 drivers and 3 receivers to fulfill the electrical specifications of standards EIA-232-D and CCITT V.28. The drivers feature true TTL input compatibility, slew-rate limited output, 300? power-off source impedance, and output typically switching to within 25 of the supply rails. The receivers can handle up to +25V while presenting 3 to 7k? impedance. Hysteresis in the receiver aids reception of noisy signals. By combining both drivers and receivers in a single CMOS chip, the MC145406 provides efficient, low-power solutions for EIA-232-D and V.28 applications.

FEATURES

? Drivers

? +5 to +12V supply range

? 300? power-off source impedance

? Output current limiting

? TTL compatible

? Maximum slew rate = 30V/μs

? Receivers

? +25V input voltage range over the full supply range

? 3 to 7k? input impedance

? Hysteresis on input switchpoint

? General

? Very low supply currents for long battery life

? Operation is independent of power supply sequencing

APPLICATIONS

? Modem interface

? Voice/data telephone interface

? Lap-top computers

? UART interface