{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A42MX16-PLG84","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"A42MX16-PLG84","canonicalUrl":"https://icboms.com/microchip/A42MX16-PLG84","factsUrl":"https://icboms.com/api/mcp/products/A42MX16-PLG84","rawCanonicalId":null},"summary":{"shortDescription":"Microchip MX series FPGA, A42MX16-PLG84, 24,000 gates, 72 I/O, 3 V supply, 0°C to 70°C, 84-PLCC, Tube.","salesMarkdown":"## 24,000 gates in a 84-PLCC — the glue-logic workhorse The Microchip A42MX16-PLG84 is an MX-series FPGA packing 24,000 gates in a 84-pin PLCC package. That gate count puts it in the range for moderate-density bus bridging, address decoding, state-machine control, and custom peripheral muxing — not for processor-class logic, but enough to replace a handful of 7400-series or 4000-series logic ICs on a board. Seventy-two user I/O are available, which is enough to fan out to a 16-bit data bus plus address and control lines with headroom for a few status and configuration signals. The 3 V supply rail means it runs directly from a 3.3 V rail without a separate regulator — one less BOM line. That locks this part into indoor, temperature-controlled equipment — office peripherals, test gear, telecom racks with active cooling, consumer electronics. Not for an engine bay, a rooftop radio, or an unventilated enclosure in a warehouse. Surface-mount assembly in an 84-PLCC — the J-lead footprint is a known quantity for rework and inspection. The PLCC socket option exists for prototyping or field-upgradeable designs, but production boards typically solder direct. The MX series has been a long-running antifuse FPGA family. Active status on a mature part like this is a signal of stable supply — no die-shrink respin, no package-change PCN looming. The risk profile is low for a production line that needs a known, fixed logic footprint. ## Gate-count delta vs the A40MX04-PLG84 The closest sibling in the MX family is the A40MX04-PLG84, which holds 6,000 gates and 69 I/O in the same 84-PLCC package. The A42MX16-PLG84 offers 4× the gate count and three additional I/O — a meaningful step up if your design needs more combinatorial logic or wider bus fan-out, but still pin-compatible on the same board footprint. If the 6,000-gate variant is enough for the logic load, the A40MX04-PLG84 saves cost. If you need the extra headroom, the A42MX16-PLG84 is the drop-in upgrade without a board spin.","metaTitle":"Microchip A42MX16-PLG84 FPGA, 24,000 gates, 72 I/O, 84-PLCC","metaDescription":"Microchip MX series FPGA, 24,000 gates, 72 I/O, 3 V supply, 0°C to 70°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["FPGA / CPLD & Programmable Logic"],"specifications":{"series":"MX","has_mpn":"A42MX16","package_type":"Tube","Number Of I/O":"72","mounting_type":"Surface Mount","product_status":"Active","Number Of Gates":"24000","lifecycle_stage":"eol_hot","supply_voltage_v":"3.0","Operating Temperature High":"0°C to 70°C(TA)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$189.78","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"http://www.microsemi.com/index.php?option=com_docman&task=doc_download&gid=130699","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/A42MX16-PLG84","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/A42MX16-PLG84 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}}