MC145405数据手册恩XP中文资料规格书

描述 Description

Overview The MC145405 has been discontinued. Suggested replacement: none.The MC145405 is a silicon-gate CMOS IC that combines both the transmitter and receiverto fulfill the electrical specifications of EIA Standard 232-E and CCITT V.28. The drivers feature true TTL input compatibility, slew rate limiting outputs, 300 ohm power-off source impedance, and output typically switching to within 25% of the supply rails. The receivers canhandle up to +/- 25 V while presenting 3 to 7 k ohms impedance. Hysteresis in the receivers aidsin the reception of noisy signals. By combining both drivers and receivers in a single CMOS chip,these devices provide efficient, low-power solutions for both EIA-232-E and V.28 applications. See related devices:MC145403 (3 x 5), MC145404 (4 x 4), MC145408 (5 x 5)

特性 Features

Drivers

\t•+/- 5 to +/- 12 V Supply Range
\t•300 ohm Power-Off Source Impedance
\t•Output Current Limiting
\t•TTL and CMOS Compatible Inputs
\t•Driver Slew Rate Range Limited to 30 V/microseconds Maximum

Receivers

\t•+/- 25 V Input Range
\t•3 to 7 k ohm Input Impedance
\t•0.8 V of Hysteresis for Enhanced Noise Immunity
\t•TTL and CMOS Compatible Outputs