{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C3246PVI-122","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C3246PVI-122","canonicalUrl":"https://icboms.com/infineon/CY8C3246PVI-122","factsUrl":"https://icboms.com/api/mcp/products/CY8C3246PVI-122","rawCanonicalId":null},"summary":{"shortDescription":"Cypress PSoC 3 CY8C32xx 8-bit MCU, CY8C3246PVI-122, 8051 core 50MHz, 64KB Flash, 8K x 8 RAM, 2K x 8 EEPROM, 25 I/O, CapSense, LCD, I²C/SPI/UART, 1.71V-5.5V, -40°C to 85°C, 48-SSOP.","salesMarkdown":"## 8051 core at 50 MHz with PSoC 3 programmable analog The CY8C3246PVI-122 is an 8-bit MCU from Cypress's PSoC 3 family, built around an 8051 core clocked at 50 MHz. What sets this part apart from a plain 8051 is the PSoC programmable architecture: on-chip CapSense, LCD drive, DMA, and a configurable analog front end with a 16-channel 12-bit ADC and a single 8-bit DAC. ## CapSense and LCD drive — what they save on the BOM The integrated CapSense peripheral eliminates a dedicated touch-controller IC for capacitive touch buttons or sliders, and the LCD drive can directly bias a segment LCD panel without an external display driver. For a human-machine interface panel, this consolidation saves one or two ICs, the associated passives, and the board area those components occupy. The 25 I/O lines, routed through the 48-pin SSOP package, provide enough headroom for a keypad matrix, a few sensors, and a UART or I²C link to a host processor. ## 50 MHz — what the speed buys in a control loop At 50 MHz the 8051 pipeline executes most instructions in 1–4 clock cycles, yielding roughly 12–25 MIPS of sustained throughput. That is enough for closed-loop PID control at a few kilohertz, real-time CapSense scanning, and a serial protocol like SPI or UART running at a few megabits per second without a dedicated DMA channel — though the DMA is there if you need to move ADC results to RAM without CPU intervention. If your application needs floating-point math or heavy signal processing, the 8051 core will feel the strain; the PSoC 3's digital blocks (PWM, counter, timer) offload periodic tasks efficiently. The PSoC 4 parts (CY8C4245LQI-483, CY8C4247LQI-BL473) use an ARM Cortex-M0 core at 48 MHz and a different pinout — they require a board spin and firmware port. No direct pin-compatible second source exists in the PSoC family; the CY8C3246PVI-122 is the only 48-SSOP variant at this density and speed grade.","metaTitle":"CY8C3246PVI-122 PSoC 3 MCU, 8051 50MHz, 64KB Flash, 48-SSOP","metaDescription":"CY8C3246PVI-122 PSoC 3 8-bit MCU with 8051 core at 50MHz, 64KB Flash, 8K x 8 RAM, CapSense, LCD drive, -40°C to 85°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"PSOC® 3 CY8C32xx","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Speed":"50MHz","Series":"PSOC® 3 CY8C32xx","Package":"Tube","RAM Size":"8K x 8","Core Size":"8-Bit","EEPROM Size":"2K x 8","Peripherals":"CapSense, DMA, LCD, POR, PWM, WDT","Connectivity":"EBI/EMI, I²C, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"25","Core Processor":"8051","Package / Case":"48-BSSOP (0.295\\\", 7.50mm Width)","Data Converters":"A/D 16x12b; D/A 1x8b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"64KB (64K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"48-SSOP","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.22","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$10.22000","currency":"USD"},{"qty":10,"price":"$9.22900","currency":"USD"},{"qty":25,"price":"$8.79960","currency":"USD"},{"qty":100,"price":"$7.64060","currency":"USD"},{"qty":250,"price":"$7.29724","currency":"USD"},{"qty":500,"price":"$6.65338","currency":"USD"},{"qty":1000,"price":"$5.79488","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ca1be62407dfa0bc41d1655ecfdd98f1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy CY8C3246PVI-122?","answer":"Submit an RFQ to confirm availability and current pricing for your required quantity."},{"question":"What are the alternatives to CY8C3246PVI-122?","answer":"The PSoC 1 part CY8C29466-24PVXI uses an M8C core at 24 MHz and is not pin-compatible. PSoC 4 parts like CY8C4245LQI-483 and CY8C4247LQI-BL473 run an ARM Cortex-M0 at 48 MHz but require a different package and board layout. No direct drop-in second source exists."},{"question":"What is CY8C3246PVI-122's listed speed?","answer":"The core processor runs at 50 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C3246PVI-122","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C3246PVI-122 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}}