{"id":6226,"date":"2026-06-12T09:29:24","date_gmt":"2026-06-12T09:29:24","guid":{"rendered":"https:\/\/materialparts.com\/sn75176bp\/"},"modified":"2026-06-12T09:29:24","modified_gmt":"2026-06-12T09:29:24","slug":"sn75176bp","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/sn75176bp\/","title":{"rendered":"SN75176BP"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The SN75176BP is a differential bus transceiver from Texas Instruments in DIP-8 package, implementing the RS-485 and RS-422 communication standards. It combines a tri-state differential line driver and a differential line receiver, both active simultaneously for full-duplex or half-duplex operation. The device features \u00b1200mV receiver sensitivity, 60mA driver output current, and thermal shutdown protection, supporting data rates up to 10Mbps.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Standard<\/td>\nRS-485 \/ RS-422<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/td>\nUp to 10Mbps<\/td>\n<\/tr>\n
Driver Output Current<\/td>\n60mA<\/td>\n<\/tr>\n
Receiver Sensitivity<\/td>\n\u00b1200mV<\/td>\n<\/tr>\n
Common-Mode Range<\/td>\n-7V to +12V<\/td>\n<\/tr>\n
Bus Pins ESD<\/td>\n\u00b115kV HBM<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n5V (4.75-5.25V)<\/td>\n<\/tr>\n
Supply Current<\/td>\n50mA max (driver active)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nDIP-8 (9.6 x 7.9mm)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n0\u00b0C to +70\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Combined driver and receiver for bidirectional RS-485 communication<\/li>\n
  • \u00b1200mV receiver sensitivity for noise-immune data reception<\/li>\n
  • -7V to +12V common-mode range for industrial environments<\/li>\n
  • Thermal shutdown protection at 150\u00b0C<\/li>\n
  • Driver and receiver enable pins for flexible bus control<\/li>\n
  • Up to 32 nodes on a single bus<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Industrial RS-485 communication networks (Modbus, PROFIBUS)<\/li>\n
    • HVAC and building automation systems<\/li>\n
    • Motor drive communication interfaces<\/li>\n
    • Point-of-sale terminal networks<\/li>\n
    • Laboratory and test equipment remote control<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SN75176BP is a differential bus transceiver from Texas Instruments in DIP-8 package, implementing the RS-485 and RS-422 communication standards. It combines a tri-state differential line driver and a differential line receiver, both active simultaneously for full-duplex or half-duplex operation. The device features \u00b1200mV receiver sensitivity, 60mA driver output current, and thermal shutdown […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[138],"class_list":["post-6226","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"RS-485\/RS-422 differential bus transceiver, 10Mbps, DIP-8, driver + receiver with enables","date_code":"","package_case":"DIP-8 (9.6 x 7.9 x 5.3mm)","in_stock":12683,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/sn75176b.pdf","price":"$0.85 @ 1ku","product_introduction":"The SN75176BP is an RS-485\/RS-422 differential bus transceiver from Texas Instruments in DIP-8, combining a tri-state differential driver and differential receiver on a single chip. The driver converts single-ended TTL\/CMOS data into differential signals (A and B) suitable for transmission over twisted-pair cable up to 1200 meters (4000 feet). The receiver converts the differential signal back to single-ended TTL\/CMOS with \u00b1200mV sensitivity, providing excellent noise immunity in industrial environments. The driver and receiver can be active simultaneously for full-duplex 4-wire RS-422, or the DE (Driver Enable) and RE# (Receiver Enable) pins can be used for half-duplex 2-wire RS-485. The device supports up to 32 nodes on a single bus (one unit load per device). The common-mode range of -7V to +12V allows operation in the presence of ground potential differences between nodes. The thermal shutdown at 150\u00b0C protects against line contention faults. The -BP suffix specifies DIP-8, commercial temperature (0\u00b0C to +70\u00b0C). The SN75176 is one of the most widely used RS-485 transceivers in the industry, with second-source availability from multiple manufacturers.","working_principle":"The SN75176BP contains two independent functional blocks: a differential driver and a differential receiver, each with its own enable control. The driver: When DE (Driver Enable) is HIGH, the driver is active. The DI (Driver Input) signal controls the differential output: DI=HIGH drives A HIGH and B LOW (logic 1); DI=LOW drives A LOW and B HIGH (logic 0). The driver output current is 60mA into a 54-ohm load (27 ohms each side to a 5V termination), producing a differential voltage of at least 1.5V. When DE is LOW, the driver outputs are high-impedance (tri-state), allowing other nodes to transmit. The receiver: When RE# (Receiver Enable) is LOW, the receiver is active. It compares the voltage difference between A and B: if (A-B) > 200mV, RO (Receiver Output) = HIGH; if (A-B) < -200mV, RO = LOW; if |A-B| < 200mV, RO is indeterminate. When RE# is HIGH, RO is high-impedance. For half-duplex RS-485: the DE and RE# pins are typically tied together (or DE = RE# inverted), so the device either transmits or receives but never both simultaneously. The bus termination: a 120-ohm resistor at each end of the bus matches the characteristic impedance of the twisted-pair cable, preventing signal reflections. The fail-safe biasing: when no driver is active, the bus floats; pull-up (A) and pull-down (B) resistors (typically 1k) ensure the bus idle state is >200mV differential, preventing false start bits.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>RO<\/td>Output<\/td>Receiver output (HIGH when A-B > 200mV, LOW when A-B < -200mV, Hi-Z when RE#=HIGH)<\/td><\/tr>
      2<\/td>RE#<\/td>Input<\/td>Receiver enable (active LOW, LOW=receive, HIGH=RO high-impedance)<\/td><\/tr>
      3<\/td>DE<\/td>Input<\/td>Driver enable (active HIGH, HIGH=transmit, LOW=driver high-impedance)<\/td><\/tr>
      4<\/td>DI<\/td>Input<\/td>Driver input (TTL\/CMOS, HIGH=A-HIGH\/B-LOW, LOW=A-LOW\/B-HIGH)<\/td><\/tr>
      5<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      6<\/td>A<\/td>I\/O<\/td>Bus side A (non-inverting, connects to twisted-pair via termination)<\/td><\/tr>
      7<\/td>B<\/td>I\/O<\/td>Bus side B (inverting, connects to twisted-pair via termination)<\/td><\/tr>
      8<\/td>VCC<\/td>Power<\/td>Supply (5V, connect with 0.1uF ceramic bypass)<\/td><\/tr><\/table>","application_scenarios":"
      • Modbus RTU network<\/b>: Half-duplex RS-485 connects up to 32 PLCs and I\/O modules over 1200m twisted-pair; DE\/RE# controlled by UART RTS signal for auto-direction switching<\/li>
      • HVAC building automation<\/b>: Multiple temperature\/humidity sensors communicate to central controller; -7V to +12V common-mode range tolerates ground differences between floors<\/li>
      • Motor drive communication<\/b>: Inverter receives speed\/torque commands via RS-485 from PLC; 10Mbps data rate supports real-time command updates<\/li>
      • Point-of-sale terminal<\/b>: Cash registers networked to central server over long cable runs; \u00b1200mV sensitivity ensures reliable data in noisy retail environments<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Texas Instruments<\/td>SN75176BDR<\/td>SOIC-8<\/td>Same device in SOIC-8 SMD package<\/td><\/tr>
        Texas Instruments<\/td>SP3485EN-L\/TR<\/td>SOP-8<\/td>3.3V RS-485, low power, TI\/Sipex brand<\/td><\/tr>
        Analog Devices<\/td>ADM485ARZ-REEL7<\/td>SOIC-8<\/td>5V RS-485, 5Mbps, ADI brand<\/td><\/tr>
        Maxim<\/td>MAX485CPA+<\/td>DIP-8<\/td>5V RS-485, 2.5Mbps, Maxim brand<\/td><\/tr>
        STMicroelectronics<\/td>ST485ABDR<\/td>SOIC-8<\/td>5V RS-485, 10Mbps, ST brand<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6226","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=6226"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6226\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6226"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6226"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6226"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6226"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}