Hot-selling and scarce ST75185CDR Multiple RS-232 drivers and receivers 20-SOIC spot stock

Product Descriptions

The ST75185C contains three drivers and fivereceivers . The pinout matches the DB9Sconnector design in order to decrease the partcount, reduce the board space required and alloweasy interconnection of the UART and serial portconnector of IBM PC/AT™ and compatibles . Thebipolar circuits and processing of the ST75185Cprovides a rugged low-cost solution for thisfunction at the expense of quiescent power andexternal passive components relative to theST75C185 .

The ST75185C complies with the requirements ofthe EIA/TIA 232-E and ITU (formally CCITT) v.28standards . These standards are for datainterchange between a host computer andperipheral at signalling rates up to 20 k-bits/s .Theswitching speeds of the ST75185C are fastenough to support rates up to 120 K-bits/s withlower capacitive loads (shorter cables). Interoperability at the higher signalling rates cannot beassured unless the designer has design control ofthe cable and the interface circuits at the bothends . For inter-operability at signalling rates to 120 k-bits/s, use of EIA/ITA-423-B (ITU v.10) andEIA/ITA-422-B (ITU v.11) standards arerecommended .

The ST75185C is characterized for operation overthe range of 0°C to 70 °C .

Product Features

■ Meets and exceeds the requirements of EIA/TIA-232-E and ITUV .28 standard

■ Single chip with easy interface between UART and serial port connector of IBM PC/AT™ and compatibles

■ Designed to support data rates up to 120 kbps

■ Pinout compatible with ST75C185

Product Specifications

Product Photos

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