{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"B505CA4EMCAXP","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"B505CA4EMCAXP","canonicalUrl":"https://icboms.com/infineon/B505CA4EMCAXP","factsUrl":"https://icboms.com/api/mcp/products/B505CA4EMCAXP","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies C5xx/C8xx series 8-bit microcontroller, B505CA4EMCAXP, C500 core, 20 MHz, 32 KB OTP, 1.25K x 8 RAM, 34 I/O, 44-QFP.","salesMarkdown":"## OTP program memory locks the firmware at the factory The B505CA4EMCAXP carries 32 KB of one-time-programmable (OTP) memory — the program is written during manufacturing and cannot be erased or updated in the field. This suits high-volume, firmware-fixed applications where code changes after deployment are not part of the product lifecycle. The C500 core runs at 20 MHz, a 8-bit architecture with 1.25K x 8 of on-chip RAM for data buffering and stack operations. The 34 general-purpose I/O lines are brought out through a 44-pin QFP (PG-MQFP-44-2) package, surface-mount for automated assembly. ## Peripheral set and supply rail for 5V legacy systems On-chip peripherals include a power-on reset (POR), pulse-width modulation (PWM) outputs, and a watchdog timer (WDT). An 8-channel, 10-bit analog-to-digital converter handles analog inputs without an external ADC. The oscillator is external; the device does not include an internal RC clock. A crystal or ceramic resonator must be provided on the PCB.","metaTitle":"Infineon B505CA4EMCAXP 8-bit MCU, 20 MHz, 32 KB OTP, 44-QFP","metaDescription":"Infineon B505CA4EMCAXP C500 8-bit MCU, 20 MHz core, 32 KB OTP program memory, 1.25K x 8 RAM, 34 I/O, CAN/UART, 44-QFP. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":"C5xx/C8xx","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"20MHz","Series":"C5xx/C8xx","Package":"Bulk","RAM Size":"1.25K x 8","Core Size":"8-Bit","Peripherals":"POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"34","Core Processor":"C500","Package / Case":"44-QFP","Data Converters":"A/D 8x10b","Oscillator Type":"External","lifecycle_stage":"eol_hot","Program Memory Size":"32KB (32K x 8)","Program Memory Type":"OTP","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"PG-MQFP-44-2","Voltage - Supply (Vcc/Vdd)":"4.25V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.03","stockQuantity":0,"priceTiers":[{"qty":34,"price":"$9.03000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2339f38d80ab702d6b5284707381fb98.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Who supplies B505CA4EMCAXP and how is it quoted for volume purchases?","answer":"Volume pricing and lead time are confirmed at RFQ against the specific BOM quantity."},{"question":"What is B505CA4EMCAXP's listed speed?","answer":"The core runs at 20 MHz, based on the C500 8-bit architecture."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/B505CA4EMCAXP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/B505CA4EMCAXP 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}}