{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C27243-24PVXIT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C27243-24PVXIT","canonicalUrl":"https://icboms.com/infineon/CY8C27243-24PVXIT","factsUrl":"https://icboms.com/api/mcp/products/CY8C27243-24PVXIT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies PSoC®1 CY8C27xxx 8-bit M8C MCU, CY8C27243-24PVXIT, 24 MHz, 16 KB Flash, 256 x 8 RAM, 4x14-bit ADC, 4x9-bit DAC, 16 I/O, 20-SSOP, -40°C to +85°C.","salesMarkdown":"## 24 MHz M8C core with on-chip analog The CY8C27243-24PVXIT runs an 8-bit M8C core at 24 MHz — the clock ceiling is set by the internal oscillator, so no external crystal is needed for the CPU timing. The 16 KB flash and 256 x 8 RAM are the firmware budget: the 256-byte SRAM is the tight constraint for buffered I²C or SPI transactions, so a polling-driven loop with a small FIFO fits better than a DMA-heavy architecture. The 14-bit resolution on the ADC side gives about 16384 counts across the supply range (3 V to 5.25 V), so a 0.3 mV LSB at 5 V is achievable for thermocouple or strain-gauge amplification. ## SSOP package and rework reality The 0.65 mm pitch is wide enough that bridging between adjacent pins is unlikely with a clean tip and flux. Pin 1 is marked by a bevel on the package corner, visible under a 10× loupe. ## Serial connectivity and peripheral set I²C, SPI, and UART/USART are all available on-chip — the three common serial buses for sensor, display, and host communication. The 16 general-purpose I/O pins are multiplexed with these serial interfaces and the analog inputs, so the pin assignment must be planned at schematic capture to avoid conflicts between the ADC channels and the SPI chip-select lines. Built-in POR (power-on reset), PWM, and WDT peripherals handle basic housekeeping without external supervisor ICs. The internal oscillator eliminates the crystal and its load capacitors, saving two component placements and reducing the BOM count. ## Active lifecycle and sourcing posture No stock-holding claim — each order is verified against the BOM quantity before commitment.","metaTitle":"Infineon CY8C27243-24PVXIT PSoC 8-bit MCU, 24 MHz","metaDescription":"Active-production Infineon CY8C27243-24PVXIT 8-bit M8C MCU, 24 MHz, 16 KB flash, 256 B RAM, 4x14-bit ADC, 20-SSOP. Industrial temp -40°C to +85°C.","metaKeywords":null},"attributes":{"series":"PSOC®1 CY8C27xxx","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"24MHz","Series":"PSOC®1 CY8C27xxx","Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"256 x 8","Core Size":"8-Bit","Peripherals":"POR, PWM, WDT","Connectivity":"I²C, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"16","Core Processor":"M8C","Package / Case":"20-SSOP (0.209\\\", 5.30mm Width)","Data Converters":"A/D 4x14b; D/A 4x9b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"16KB (16K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"20-SSOP","Voltage - Supply (Vcc/Vdd)":"3V ~ 5.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.73","stockQuantity":21,"priceTiers":[{"qty":1,"price":"$11.73000","currency":"USD"},{"qty":10,"price":"$10.59700","currency":"USD"},{"qty":25,"price":"$10.10400","currency":"USD"},{"qty":100,"price":"$8.77330","currency":"USD"},{"qty":250,"price":"$8.37896","currency":"USD"},{"qty":500,"price":"$7.63964","currency":"USD"},{"qty":1000,"price":"$6.65388","currency":"USD"},{"qty":2000,"price":"$6.40744","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d402c25d314e801e736bd9567f91c494.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source for CY8C27243-24PVXIT?","answer":"The CY8C29566-24AXIT is a higher-I/O sibling (40 I/O vs 16) with the same M8C core and 24 MHz speed, but it comes in a 48-pin QFP package — it will not drop into the same 20-SSOP footprint without a board spin. The CY8C29466-24PVXI has 24 I/O in a 28-pin SSOP, still a different package and pin count. Neither is a drop-in replacement; a layout change is required."},{"question":"What compliance documentation does Infineon provide for CY8C27243-24PVXIT?","answer":"The part is listed as ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C27243-24PVXIT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C27243-24PVXIT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}