{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY9AF314NAPMC-GNE2","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY9AF314NAPMC-GNE2","canonicalUrl":"https://icboms.com/infineon/CY9AF314NAPMC-GNE2","factsUrl":"https://icboms.com/api/mcp/products/CY9AF314NAPMC-GNE2","rawCanonicalId":null},"summary":{"shortDescription":"Infineon FM3 MB9A310A series, CY9AF314NAPMC-GNE2, 32-bit ARM Cortex-M3 MCU, 40 MHz, 256KB Flash, 32K x 8 RAM, DMA, LVD, POR, PWM, WDT, CSIO, EBI/EMI, I²C, LINbus, SPI, UART/USART, USB, 83 I/O, 100-LQFP, -40°C to 105°C, 2.7V to 5.5V.","salesMarkdown":"## 40 MHz ARM Cortex-M3 with 256 KB Flash — what it buys the design The Infineon CY9AF314NAPMC-GNE2 is a 32-bit ARM Cortex-M3 microcontroller from the FM3 MB9A310A series, clocked at 40 MHz. It carries 256 KB of Flash program memory and 32 KB of RAM, placing it in the mid-range density tier for Cortex-M3 parts — enough for a real-time control loop, a USB stack, and a modest RTOS without external memory. The 2.7 V to 5.5 V supply range is a practical advantage: it runs directly from a 3.3 V or 5 V rail, or from a 3-cell alkaline battery stack, without a regulator. The -40°C to 105°C operating temperature range qualifies it for industrial motor drives, outdoor telecom enclosures, and under-hood automotive auxiliary modules. On-chip peripherals include USB, I²C, SPI, UART/USART, LINbus, and an external bus interface (EBI/EMI), plus 16-channel 12-bit SAR ADC. With 83 general-purpose I/Os in a 100-LQFP package, this part suits control panels, sensor hubs, and human-machine interface applications where a single-chip solution keeps the BOM count low. ## Memory and peripheral budget for the BOM 256 KB Flash and 32 KB RAM are the memory envelope for firmware and data. A typical application — say, a brushless DC motor controller with CANopen stack and USB logging — fits comfortably in 128 KB of code space, leaving headroom for field-upgradeable bootloader and diagnostic routines. The 32 KB RAM supports moderate-sized data buffers and a real-time OS kernel with a few tasks. The 16-channel 12-bit SAR ADC samples at rates adequate for current sensing in motor drives or multi-channel temperature monitoring. The DMA controller offloads ADC result transfers and serial communication without CPU intervention, preserving the 40 MHz core for control algorithm execution. ## Package and layout fit The 100-LQFP package (14x14 mm body) with 0.5 mm pitch is a standard footprint that routes easily on a two-layer PCB. The 83 I/Os are distributed around all four sides, giving the layout engineer flexibility in signal routing. No exposed thermal pad — junction-to-ambient thermal performance relies on the leadframe and copper pour area. ## Lifecycle and sourcing posture The CY9AF314NAPMC-GNE2 carries an Active lifecycle status with ROHS3 compliance. This part is suitable for both new design-ins and ongoing production without obsolescence risk in the near term. For dual-sourcing or a higher-performance variant, the CY9BF314RPMC-G-JNE2 is a pin-compatible sibling in the FM3 MB9B310R series, running at 144 MHz with the same 256 KB Flash and 100-LQFP footprint.","metaTitle":"Infineon CY9AF314NAPMC-GNE2 MCU, ARM Cortex-M3, 40 MHz","metaDescription":"Infineon FM3 MB9A310A 32-bit ARM Cortex-M3 MCU at 40 MHz with 256KB Flash, 32KB RAM, 83 I/O, USB, I²C, SPI. Industrial temp -40°C to 105°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"FM3 MB9A310A","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Speed":"40MHz","Series":"FM3 MB9A310A","Package":"Tray","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","Peripherals":"DMA, LVD, POR, PWM, WDT","Connectivity":"CSIO, EBI/EMI, I²C, LINbus, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"83","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Data Converters":"A/D 16x12b SAR","Oscillator Type":"External, Internal","lifecycle_stage":"eol_hot","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 105°C (TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"2.7V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.78","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$9.78000","currency":"USD"},{"qty":10,"price":"$8.83800","currency":"USD"},{"qty":25,"price":"$8.42680","currency":"USD"},{"qty":90,"price":"$7.31700","currency":"USD"},{"qty":270,"price":"$6.98819","currency":"USD"},{"qty":450,"price":"$6.37158","currency":"USD"},{"qty":990,"price":"$5.54944","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d768c54e454e5552253fa5809edcd2b4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Are there any equivalents to CY9AF314NAPMC-GNE2?","answer":"The CY9BF314RPMC-G-JNE2 is a pin-compatible sibling in the FM3 MB9B310R series. It runs at 144 MHz (higher speed) but has a narrower temperature range of -40°C to 85°C. Both share the same 100-LQFP package, 256 KB Flash, and peripheral set."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY9AF314NAPMC-GNE2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY9AF314NAPMC-GNE2 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}}