{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX490EPA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX490EPA","canonicalUrl":"https://icboms.com/analog-devices/MAX490EPA","factsUrl":"https://icboms.com/api/mcp/products/MAX490EPA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX490EPA+, RS-422/RS-485 transceiver, full duplex, 1/1 driver/receiver, 2.5 Mbps, 4.75V–5.25V supply, -40°C to 85°C, 8-PDIP (0.300\") through-hole package, tube.","salesMarkdown":"## Full duplex means four wires, not two Unlike the half-duplex part (which shares the same 8-DIP footprint and 5V supply), the MAX490EPA+ supports full-duplex communication using separate transmit and receive pairs. That gives you simultaneous bidirectional data flow — useful for poll-response protocols where the master doesn't want to wait for bus turn-around. The trade-off is wiring: you need four conductors (plus ground) instead of two. If your application is half-duplex multi-drop, the half-duplex part is the simpler fit; if you need continuous two-way streaming over RS-422 or RS-485, this part is the one. ## Active lifecycle and compliance The MAX490EPA+ carries an Active product status and is RoHS3 compliant. It remains a current-production part suitable for new designs and production replenishment through independent distribution.","metaTitle":"MAX490EPA+ RS-485/RS-422 Transceiver, Full Duplex, 2.5 Mbps","metaDescription":"MAX490EPA+ full-duplex RS-485/RS-422 transceiver, 2.5 Mbps data rate, 5V supply, -40°C to 85°C, 8-PDIP. Active, RoHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Transceiver","Duplex":"Full","Package":"Tube","Protocol":"RS422, RS485","Data Rate":"2.5Mbps","Mounting Type":"Through Hole","Package / Case":"8-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Receiver Hysteresis":"70 mV","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"8-PDIP","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.39","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.39000","currency":"USD"},{"qty":10,"price":"$5.77600","currency":"USD"},{"qty":25,"price":"$5.50760","currency":"USD"},{"qty":100,"price":"$4.78220","currency":"USD"},{"qty":250,"price":"$4.56724","currency":"USD"},{"qty":500,"price":"$4.16424","currency":"USD"},{"qty":1000,"price":"$3.62692","currency":"USD"},{"qty":2500,"price":"$3.49259","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/602428fed3abfc9496453e492ef2d17c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between MAX490EPA+ and MAX485EPA+?","answer":"The MAX490EPA+ is a full-duplex transceiver (separate transmit and receive pairs, four wires), while the MAX485EPA+ is half-duplex (shared pair, two wires). Both use the same 8-DIP footprint, 5V supply, and 2.5 Mbps data rate. The MAX490 also supports RS-422 point-to-point links; the MAX485 is limited to RS-485 multi-drop. Choose the MAX490 when you need simultaneous bidirectional communication; choose the MAX485 for simpler two-wire bus topologies."},{"question":"Is MAX490EPA+ lead-free and RoHS compliant?","answer":"Yes, the MAX490EPA+ is RoHS3 compliant (lead-free per EU directive 2015/863). The suffix '+ ' denotes a lead-free, RoHS-compliant part from Maxim Integrated."},{"question":"What is the maximum data rate of MAX490EPA+?","answer":"The MAX490EPA+ is rated for a maximum data rate of 2.5 Mbps. At this speed, reliable communication over twisted-pair cable is typically limited to a few hundred feet; longer runs require lower data rates or active repeaters."},{"question":"Can MAX490EPA+ be used as a replacement for MAX490CPD?","answer":"The MAX490EPA+ and MAX490CPD share the same transceiver function, full-duplex protocol, and 8-DIP package. The 'E' in the order code indicates the industrial temperature range (-40°C to 85°C), while the 'C' variant is commercial temperature (0°C to 70°C). The MAX490EPA+ is a drop-in replacement for the MAX490CPD in terms of pinout and electrical specs, with wider temperature capability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX490EPA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX490EPA when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}