ST75185 Datasheet | STMicroelectronics

® MULTIPLE RS-232 DRIVERS AND RECEIVERS s s s s 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 PATIBLES DESIGNED TO SUPPORT DATA RATES UP TO 120 Kbps PINOUT PATIBLE WITH ST75C185 N D (Plastic Package) (Micro Package) ORDER CODES : ST75185CN ST75185CD standards. These standards are for data interchange between a host puter 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 remended. The ST75185 is characterized for operation over the range of 0o C to 70o C. 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/AT™ and patibles. 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 ponents relative to the ST75C185. The ST75185 plies with the requirements of the EIA/TIA 232-E and ITU (formally CCITT) v.28 PIN CONNECTION IEC LOGIC SYMBOL AND LOGIC DIAGRAM June 2000 1/12 ORDER CODES T ype ST75185CN ST75185CD ST75185CDR T emp eratu re Range 0 to 70 o C 0 to 70 o C 0 to 70 C o Package DIP-20 SO-20 (Tube) SO-20 (Tape & Reel) ments 20 parts per tube / 50 tubes per box 40 parts per tube / 25 tubes per box 1000 parts per reel PIN DESCRIPTION PIN No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...