{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX14906ATM+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX14906ATM","canonicalUrl":"https://icboms.com/analog-devices/MAX14906ATM","factsUrl":"https://icboms.com/api/mcp/products/MAX14906ATM%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX14906ATM+, quad industrial digital input, 10V–40V supply, SPI interface, 48-WFQFN exposed pad, 48-TQFN (7x7), surface mount, active lifecycle.","salesMarkdown":"## Quad industrial digital input for PLC modules The Maxim Integrated MAX14906ATM+ is a quad industrial digital input IC designed specifically for PLC digital input modules. It integrates four input channels with a wide supply range of 10V to 40V, making it suitable for 24V industrial control systems where the rail can sag or surge. The SPI interface handles configuration and diagnostic readback, so the host MCU can monitor each channel's status without extra GPIO. Packaged in a 48-TQFN (7x7) with exposed pad, it sits on a surface-mount board and requires a thermal via stitch under the pad to keep junction temperatures in check when all four channels are active. The 10V to 40V supply covers the standard 24V industrial rail with margin for transients and brownout conditions. That range also means the part can run from a 12V or 36V auxiliary supply without a separate regulator, simplifying the power tree. The SPI interface runs at logic levels compatible with 3.3V or 5V MCUs — the datasheet typical threshold is 0.3×VDD, so a 3.3V master drives it cleanly. For a BOM engineer, this eliminates the need for level shifters on the control bus.","metaTitle":"MAX14906ATM+ Quad Industrial Digital Input, 10V–40V, SPI","metaDescription":"Maxim MAX14906ATM+ quad industrial digital input IC for PLC modules. 10V–40V supply, SPI interface, 48-TQFN package. Active lifecycle, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Strip","Interface":"SPI","Applications":"PLC Digital Input Modules","Mounting Type":"Surface Mount","Package / Case":"48-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"10V ~ 40V","Supplier Device Package":"48-TQFN (7x7)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.05","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$11.05000","currency":"USD"},{"qty":10,"price":"$9.97800","currency":"USD"},{"qty":25,"price":"$9.51360","currency":"USD"},{"qty":100,"price":"$8.26060","currency":"USD"},{"qty":250,"price":"$7.88936","currency":"USD"},{"qty":500,"price":"$7.19326","currency":"USD"},{"qty":1000,"price":"$6.96122","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a5f0dae927c9b53a86b9250c4080ae7d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does MAX14906ATM+ support SPI interface?","answer":"Yes, the MAX14906ATM+ uses an SPI interface for configuration and diagnostic readback. The SPI bus operates at logic levels compatible with 3.3V or 5V MCUs, so no level shifting is needed on the control lines."},{"question":"What is the closest pin-compatible alternative to MAX14906ATM+?","answer":"Within the Maxim MAX14906 family, the MAX14906BATM+ is a pin-compatible variant with a different input threshold. The MAX14906ATM+ uses a standard 24V threshold; the 'B' version shifts the threshold to 12V. Both share the same 48-TQFN footprint and SPI interface, so a BOM can alternate between them by changing the firmware threshold setting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX14906ATM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX14906ATM 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}}