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ST75185CDR Datasheet(PDF) 1 Page - STMicroelectronics |
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ST75185CDR Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 21 page  June 2006 Rev 16 1/21 21 ST75185 Multiple RS-232 drivers and receivers General 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/ATTM and compatibles ■ Designed to support data rates up to 120kbps ■ Pinout compatible with ST75C185 Description The ST75185 contains three drivers and five receivers. The pinout matches the DB9S connector design in order to decrease the part count, reduce the board space required and allow easy interconnection of the UART and serial port connector of IBM PC/ATTM and compatibles. The bipolar circuits and processing of the ST75185 provides a rugged low-cost solution for this function at the expense of quiescent power and external passive components relative to the ST75C185. The ST75185 complies with the requirements of the EIA/TIA 232-E and ITU (formally CCITT) v.28 standards. These standards are for data interchange between a host computer and peripheral at signalling rates up to 20k-bits/s. The switching speeds of the ST75185 are fast enough to support rates up to 120K-bits/s with lower capacitive loads (shorter cables). Interoperability at the higher signalling rates cannot be assured unless the designer has design control of the cable and the interface circuits at the both ends. For interoperability at signalling rates to 120 K- bits/s, use of EIA/ITA-423-B (ITU v.10) and EIA/ITA-422-B (ITU v.11) standards are recommended. The ST75185 is characterized for operation over the range of 0°C to 70°C. SO-20 TSSOP20 www.st.com Order code Part number Temperature range Package Packaging ST75185CTR 0 to 70 °C TSSOP20 (Tape & Reel) 2500 parts per reel ST75185CDR 0 to 70 °C SO-20 (Tape & Reel) 1000 parts per reel |
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