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SN55LBC174 Datasheet(PDF) 1 Page - Texas Instruments |
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SN55LBC174 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 9 page SN55LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER SGLS082 – MARCH 1995 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Meets EIA Standard RS-485 D Designed for High-Speed Multipoint Transmission on Long Bus Lines in Noisy Environments D Supports Data Rates up to and Exceeding Ten Million Transfers Per Second D Common-Mode Output Voltage Range of – 7 V to 12 V D Positive- and Negative-Current Limiting D Low Power Consumption... 1.5 mA Max (Output Disabled) description The SN55LBC174 is composed of monolithic quadruple differential line drivers with 3-state outputs. This device is designed to meet the requirements of the Electronics Industry Association (EIA) Standard RS-485 and is optimized for balanced multipoint bus transmission at data rates up to and exceeding 10 million bits per second. Each driver features wide positive and negative common-mode output voltage ranges, current limiting, and thermal-shutdown protection making it suitable for party-line applications in noisy environments. This device is designed using LinBiCMOS ™, facilitating ultra-low power consumption and inherent robustness. The SN55LBC174 provides positive and negative-current limiting and thermal shutdown for protection from line fault conditions on the transmission bus line. This device offers optimum performance when used with the SN55LBC173 quadruple line receiver. The SN55LBC174 is available in the 16-pin CDIP package (J), the 16-pin CPAK (W), or the 20-pin LCCC package (FK). The SN55LBC174 is characterized for operation over the military temperature range of – 55 °C to 125°C. FUNCTION TABLE (each driver) INPUT ENABLE OUTPUTS INPUT ENABLE Y Z H H H L L H L H X L Z Z H = high level, L = low level, X = irrelevant, Z = high impedance (off) Copyright © 1995, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1A 1Y 1Z 1, 2EN 2Z 2Y 2A GND VCC 4A 4Y 4Z 3, 4EN 3Z 3Y 3A J OR W PACKAGE (TOP VIEW) NC – No internal connection FK PACKAGE (TOP VIEW) 19 20 1 32 17 18 16 15 14 13 12 11 9 10 5 4 6 7 8 4Y 4Z NC 3, 4EN 3Z 3Z 1, 2EN NC 2Z 2Y Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. LinBiCMOS is a trademark of Texas Instruments Incorporated. |
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