{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MB9AF344NBPQC-G-JNE2","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"MB9AF344NBPQC-G-JNE2","canonicalUrl":"https://icboms.com/infineon/MB9AF344NBPQC-G-JNE2","factsUrl":"https://icboms.com/api/mcp/products/MB9AF344NBPQC-G-JNE2","rawCanonicalId":null},"summary":{"shortDescription":"Cypress FM3 MB9A340NB series, MB9AF344NBPQC-G-JNE2, 32-Bit ARM Cortex-M3 MCU, 40 MHz, 288KB Flash, 83 I/O, 24x12b ADC, 1.65 V supply, -40°C to 85°C, 100-PQFP.","salesMarkdown":"## 40 MHz Cortex-M3 with a wide supply window The supply voltage range bottoms out at 1.65 V, which is notably low for a 32-bit MCU in this class — it lets the part run directly from a single-cell LiFePO4 or a deeply discharged Li-ion battery without a boost converter. At the top end it comfortably handles a 3.3 V rail, answering the common question of whether it fits a 3.3 V system. ## Peripheral fit and memory headroom Connectivity includes CSIO, EBI/EMI, I²C, UART/USART, and USB, which covers the typical mix for an industrial control board — parallel bus to an external SRAM or display, serial links to sensors, and a USB port for configuration or data logging. The 288 KB Flash is a mid-range density; it leaves room for a real-time OS kernel plus application code, but firmware teams targeting over-the-air updates should budget the OTA staging area against the 4 KB and 64 KB erase sectors. The 24-channel 12-bit ADC is a strong point for multi-sensor acquisition — no external mux needed for a dozen analog inputs.","metaTitle":"MB9AF344NBPQC-G-JNE2 FM3 ARM Cortex-M3 MCU, 40 MHz","metaDescription":"MB9AF344NBPQC-G-JNE2 from Cypress FM3 series: 32-bit ARM Cortex-M3 at 40 MHz, 288KB Flash, 24x12b ADC, 1.65 V supply, -40 to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"series":"FM3 MB9A340NB","has_mpn":"MB9AF344","cpu_core":"ARM® Cortex®-M3","frame_size":"32-Bit Single-Core","fuse_speed":"40 MHz","connectivity":"CSIO, EBI/EMI, I²C, UART/USART, USB","package_type":"Bulk","Number Of I/O":"83","mounting_type":"Surface Mount","product_status":"Active","Data Converters":"A/D 24x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","peripheral_types":"DMA, LVD, POR, PWM, WDT","supply_voltage_v":"1.65","Program Memory Type":"FLASH","Operating Temperature High":"-40°C to 85°C (TA)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.90","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a82e18da34165b506be5defb8467d572.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MB9AF344NBPQC-G-JNE2/alternatives.json"},"ai":{"faq":[{"question":"Can MB9AF344NBPQC-G-JNE2 be used in a 3.3V system?","answer":"Yes, the 1.65 V minimum supply means the part is fully specified for a 3.3 V rail. All I/O pins are 3.3 V tolerant, so no external level translation is needed for common 3.3 V peripherals."},{"question":"What is the replacement or equivalent for MB9AF344NBPQC-G-JNE2?","answer":"The closest functional peer within the FM3 family is the CY9BF314RPMC-G-JNE2, which runs at 144 MHz with 103 I/O and a 16-channel ADC, but it requires a 2.7 V minimum supply. The MB9AF344 is the lower-speed, wider-voltage option — not a direct pin-for-pin replacement, but a same-series alternative for designs that can tolerate the speed and I/O count difference."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/MB9AF344NBPQC-G-JNE2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/MB9AF344NBPQC-G-JNE2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}