{"id":7562,"date":"2026-06-26T04:33:12","date_gmt":"2026-06-26T04:33:12","guid":{"rendered":"https:\/\/materialparts.com\/isl83483ibz-t\/"},"modified":"2026-06-26T04:33:12","modified_gmt":"2026-06-26T04:33:12","slug":"isl83483ibz-t","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/isl83483ibz-t\/","title":{"rendered":"ISL83483IBZ-T"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The ISL83483IBZ-T from Renesas Electronics (formerly Intersil) is a 3.3V RS-485\/RS-422 half-duplex transceiver with 250kbps data rate, 0.65mA Iq, and shutdown mode in SOIC-8 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Protocol<\/td>\nRS-485 \/ RS-422<\/td>\n<\/tr>\n
Duplex<\/td>\nHalf duplex<\/td>\n<\/tr>\n
Drivers \/ Receivers<\/td>\n1 \/ 1<\/td>\n<\/tr>\n
\u6570\u636e\u901f\u7387<\/td>\n250 kbps (slew rate limited)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3.0V to 3.6V<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n0.65 mA typical<\/td>\n<\/tr>\n
\u5173\u673a\u7535\u6d41<\/td>\n1 nA typical<\/td>\n<\/tr>\n
Common Mode Range<\/td>\n-7V to +12V<\/td>\n<\/tr>\n
Receiver Hysteresis<\/td>\n50 mV<\/td>\n<\/tr>\n
Bus Nodes<\/td>\n32 (unit load)<\/td>\n<\/tr>\n
Fail-Safe<\/td>\nOpen (receiver high if inputs floating)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-8 (IBZ suffix)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 3.3V single supply operation<\/li>\n
  • 250kbps slew-rate limited for error-free long-line communication<\/li>\n
  • 0.65mA low quiescent current with shutdown mode<\/li>\n
  • Fail-safe open receiver output for floating inputs<\/li>\n
  • Current limit and thermal shutdown for driver protection<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial RS-485 network communication<\/li>\n
    • Building automation and HVAC control<\/li>\n
    • Security network bus communication<\/li>\n
    • 3.3V microcontroller RS-485 interface<\/li>\n
    • Level translator from RS-232 to RS-422<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ISL83483IBZ-T from Renesas Electronics (formerly Intersil) is a 3.3V RS-485\/RS-422 half-duplex transceiver with 250kbps data rate, 0.65mA Iq, and shutdown mode in SOIC-8 package. Key Specifications Protocol RS-485 \/ RS-422 Duplex Half duplex Drivers \/ Receivers 1 \/ 1 Data Rate 250 kbps (slew rate limited) Supply Voltage 3.0V to 3.6V Quiescent […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[182],"class_list":["post-7562","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-onsemi"],"acf":{"brief_explanation":"3.3V RS-485 half-duplex, 250kbps, SOIC-8","date_code":"","package_case":"SOIC-8 (4.9 x 3.9 x 1.5 mm)","in_stock":2800,"datasheet":"https:\/\/www.renesas.com\/en\/document\/dst\/isl83483-85-88-90-91-datasheet","price":"$0.68 @ 1ku","product_introduction":"The ISL83483IBZ-T from Renesas Electronics (formerly Intersil) is a 3.3V BiCMOS RS-485\/RS-422 half-duplex transceiver in SOIC-8 package. The device operates from a single 3.0V to 3.6V supply and supports 250kbps data rate with slew-rate limited driver outputs for error-free communication on long, improperly terminated networks. The 0.65mA typical quiescent current and nano-ampere shutdown mode make it suitable for power-sensitive applications. The fail-safe open receiver ensures a logic-high output when inputs are floating. Driver outputs feature current limiting and thermal shutdown for robustness during bus contention. The IBZ-T suffix denotes SOIC-8 package with tape and reel.","working_principle":"The ISL83483IBZ-T operates as a 3.3V RS-485\/RS-422 half-duplex transceiver. (1) The driver converts single-ended TTL\/CMOS logic at the DI input to differential RS-485 levels at the Y and Z outputs. The differential output voltage is at least 1.5V across a 54-ohm load (RS-485 standard), even at VCC=3.0V. The DE (driver enable) pin tri-states the driver outputs for half-duplex operation. The slew-rate limited driver outputs minimize EMI and reflections on long, improperly terminated networks, limiting the data rate to 250kbps. (2) The receiver converts differential RS-485 levels at the A and B inputs to single-ended TTL\/CMOS logic at the RO output. The receiver has 50mV input hysteresis for noise immunity. The fail-safe open feature guarantees a logic-high RO output when the receiver inputs are floating or the bus is disconnected. The RE (receiver enable) pin tri-states the receiver output. (3) The shutdown mode is entered when RE is high and DE is low simultaneously for more than 300ns. In shutdown, the supply current drops to 1nA typical. The driver outputs include short-circuit current limiting and thermal shutdown that disables the driver if excessive power dissipation occurs during bus contention.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>RO<\/td>Receiver output (TTL\/CMOS)<\/td><\/tr>
      2<\/td>RE<\/td>Receiver enable (active low)<\/td><\/tr>
      3<\/td>DE<\/td>Driver enable (active high)<\/td><\/tr>
      4<\/td>DI<\/td>Driver input (TTL\/CMOS)<\/td><\/tr>
      5<\/td>GND<\/td>Ground<\/td><\/tr>
      6<\/td>A<\/td>Non-inverting bus I\/O<\/td><\/tr>
      7<\/td>B<\/td>Inverting bus I\/O<\/td><\/tr>
      8<\/td>VCC<\/td>3.3V power supply<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial RS-485 network communication with 250kbps data rate<\/li>
      • Building automation and HVAC control bus with fail-safe open<\/li>
      • Security network bus communication with 32-node support<\/li>
      • 3.3V microcontroller RS-485 interface with shutdown mode<\/li>
      • Level translator from RS-232 to RS-422 for long-distance links<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        ISL83485IBZ-T<\/td>Renesas<\/td>10Mbps, non-slew limited<\/td><\/tr>
        SP3485CN-L\/TR<\/td>MaxLinear<\/td>3.3V, 10Mbps, similar<\/td><\/tr>
        SN65HVD3082EDR<\/td>TI<\/td>3.3V, 200kbps, SOIC-8<\/td><\/tr>
        MAX3485EESA+T<\/td>ADI<\/td>3.3V, 10Mbps, ESD protected<\/td><\/tr>
        ST3485EBDR<\/td>ST<\/td>3.3V, 250kbps, SOIC-8<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=7562"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7562\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7562"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}