{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1487M","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"DS1487M","canonicalUrl":"https://icboms.com/texas-instruments/DS1487M","factsUrl":"https://icboms.com/api/mcp/products/DS1487M","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments DS1487M, half-duplex RS-485/RS-422 transceiver, 1/1 driver/receiver, 2 Mbps data rate, 4.75V–5.25V supply, 70 mV receiver hysteresis, 0°C–70°C, 8-SOIC surface-mount package.","salesMarkdown":"The DS1487M is a single-channel half-duplex transceiver for RS-485 and RS-422 networks, built for point-to-point or multi-drop bus topologies. Rated for 2 Mbps signaling, it covers the typical 500 kbps–1 Mbps industrial control bus speed range with margin. The 70 mV receiver hysteresis filters noise on long cable runs — a practical edge for factory-floor RS-485 links. ## Supply rail and temperature grade Supply range is 4.75 V to 5.25 V — strictly 5 V ±5 %. No 3.3 V compatibility; the receiver inputs are not 5 V tolerant on VCC below 4.75 V. Plan the 5 V rail separately if the rest of the board runs 3.3 V. Not rated for -40°C industrial or automotive environments. If the BOM calls for a wider range, the DS1487M is not the fit. ## Active production and sourcing posture Lifecycle status is Active. The part is still in regular production at Texas Instruments, which means it can be quoted against a BOM line without obsolescence risk. RoHS compliance is listed as non-compliant. If your assembly requires RoHS-10 (EU 2015/863), confirm the solder alloy and reflow profile — the DS1487M may contain lead in the terminations. Sourced per RFQ against the line-item quantity. ## Pinout and termination The DS1487M pinout follows the standard 8-SOIC RS-485 transceiver footprint: RO (pin 1), RE (pin 2), DE (pin 3), DI (pin 4), GND (pin 5), A (pin 6), B (pin 7), VCC (pin 8). This matches the SN75176 and other 8-pin half-duplex RS-485 parts — drop-in compatible for a board already routed for that footprint. Termination resistors: for RS-485, a 120 Ω resistor across A and B at each end of the bus is standard practice. The DS1487M does not include on-chip termination; it must be added externally.","metaTitle":"DS1487M – Texas Instruments Half-Duplex RS-485/RS-422","metaDescription":"DS1487M active-production transceiver from TI. RS-485/RS-422 half-duplex, 2 Mbps, 4.75V–5.25V supply, 70 mV hysteresis, 8-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Sensors & Transducers"],"specifications":{"Type":"Transceiver","Duplex":"Half","Package":"Bulk","Protocol":"RS422, RS485","Data Rate":"2Mbps","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Receiver Hysteresis":"70 mV","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"8-SOIC","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.34","stockQuantity":0,"priceTiers":[{"qty":224,"price":"$1.34000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/70c477009d589f3ddd5c1903792b39ab.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to DS1487M in this family?","answer":"The SN75176 is a common pin-compatible half-duplex RS-485 transceiver in the same 8-SOIC footprint. The DS1487M offers 70 mV receiver hysteresis versus the SN75176's 50 mV typical — a small noise-margin advantage on longer bus runs. Both operate on 5 V and switch at 2 Mbps. Confirm the exact supply tolerance and temperature grade against your BOM before swapping."},{"question":"Is DS1487M compatible with 3.3 V logic?","answer":"No. The supply voltage range is 4.75 V to 5.25 V. The logic inputs (DI, DE, RE) and receiver output (RO) are 5 V levels. Driving them from a 3.3 V MCU without level translation risks undervoltage on the bus and may not meet the input threshold. Use a 5 V-tolerant MCU or add a level shifter."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/DS1487M","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/DS1487M 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}}