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MC145705 - (MC145706 / MC145707) 5 Volt Only Driver/Receiver with an Integrated Standby Mode

Datasheet Summary

Description

VCC Digital Power Supply This digital supply pin is connected to the logic power supply.

This pin should have a 0.33 µF capacitor to ground.

232 D connector (Pin 7) as well as to the logic power

Features

  • er sections of the device. This pin requires an external storage capacitor to filter the 50% duty cycle voltage generated by the charge pump. TxEN Output Enable This is the driver output enable pin. When this pin is in logic low level, the condition of the driver outputs (Tx1.
  • Tx3) are in keep OFF (mark) state. STB Standby The device enters the standby mode while this pin is connected to the logic high level. During the standby mode, driver and receiver output pins become high impedance.

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Datasheet Details

Part number MC145705
Manufacturer Motorola
File Size 229.36 KB
Description (MC145706 / MC145707) 5 Volt Only Driver/Receiver with an Integrated Standby Mode
Datasheet download datasheet MC145705 Datasheet
Additional preview pages of the MC145705 datasheet.

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Full PDF Text Transcription

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MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC145705/D MC145705 Product Preview 5 Volt Only Driver/Receiver with an Integrated Standby Mode MC145706 MC145707 EIA–232–E and CCITT V.28 20 P SUFFIX PLASTIC DIP CASE 738 1 The MC145705/06/07 are a series of silicon–gate CMOS transceiver ICs that fulfill the electrical specifications of EIA–232–E and CCITT V.28 while operating from a single + 5 V power supply. These transceiver series are high performance and low power consumption devices that are equipped with standby and output enable function. 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.
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