{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY8C21345-12PVXE","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY8C21345-12PVXE","canonicalUrl":"https://icboms.com/infineon/CY8C21345-12PVXE","factsUrl":"https://icboms.com/api/mcp/products/CY8C21345-12PVXE","rawCanonicalId":null},"summary":{"shortDescription":"Cypress PSoC®1 CY8C21xxx series, CY8C21345-12PVXE, 8-bit M8C MCU, 12 MHz, 8 KB Flash, 24 I/O, I²C/SPI/UART, 4.75 V supply, 28-SSOP, -40°C to 125°C.","salesMarkdown":"The Cypress CY8C21345-12PVXE is an 8-bit PSoC1 microcontroller built around the M8C core, clocked at 12 MHz with 8 KB of on-chip Flash program memory. It belongs to the CY8C21xxx family, Infineon's (formerly Cypress) programmable-system-on-chip line that combines a microcontroller core with configurable analog and digital blocks on a single die. ## 28-pin SSOP – rework-friendly and board-space conscious The 28-pin SSOP package (Shrink Small Outline Package) is a surface-mount footprint with 0.65 mm lead pitch. It is hand-solderable with a fine-tipped iron and rework-friendly under hot air – the leads are exposed and easy to inspect. The package's low profile (typically 1.75 mm seated height) suits tight enclosures. The part is RoHS-compliant (the 'E' suffix in the order code indicates lead-free / RoHS). ## Integrated peripherals – what the on-chip blocks save you The CY8C21345-12PVXE integrates a Low-Voltage Detect (LVD), Power-On Reset (POR), Pulse-Width Modulator (PWM), and Watchdog Timer (WDT) on-chip. That eliminates the need for external supervisor ICs, reset generators, or PWM controllers in many simple control loops. The internal oscillator means no external crystal or ceramic resonator is required for the 12 MHz core clock – just a single supply rail at 4.75 V nominal. For a motor-fan controller, a heater sequencer, or a sensor hub, this part can replace a handful of discrete components.","metaTitle":"Cypress CY8C21345-12PVXE PSoC1 8-bit MCU, 12 MHz, 8 KB Flash","metaDescription":"Cypress CY8C21345-12PVXE PSoC1 8-bit M8C MCU at 12 MHz with 8 KB Flash, 24 I/O, I²C/SPI/UART, -40°C to 125°C, 28-SSOP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"series":"PSOC®1 CY8C21xxx","has_mpn":"CY8C21345","cpu_core":"M8C","frame_size":"8-Bit","fuse_speed":"12 MHz","connectivity":"I²C, IrDA, SPI, UART/USART","package_type":"Bulk","Number Of I/O":"24","mounting_type":"Surface Mount","product_status":"Active","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","peripheral_types":"LVD, POR, PWM, WDT","supply_voltage_v":"4.75","Program Memory Type":"FLASH","Operating Temperature High":"-40°C to 125°C (TA)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.40","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b0e5dd759a9b2f6d8b1f7d1f8a0a96de.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY8C21345-12PVXE/alternatives.json"},"ai":{"faq":[{"question":"What are the differences between CY8C21345-12PVXE and CY8C21345-24PVXE?","answer":"The only difference is the maximum core clock speed: the -12 variant runs at 12 MHz, while the -24 variant runs at 24 MHz. The -12 is the lower-cost, lower-power option for applications that don't need the extra throughput."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY8C21345-12PVXE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY8C21345-12PVXE 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}}