{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AVR64EA28-I/SS","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"AVR64EA28-I-SS","canonicalUrl":"https://icboms.com/microchip/AVR64EA28-I-SS","factsUrl":"https://icboms.com/api/mcp/products/AVR64EA28-I%2FSS","rawCanonicalId":null},"summary":{"shortDescription":"Microchip AVR64EA28-I/SS, AVR® EA series, 8-bit MCU, 64KB Flash, 6KB SRAM, 512B EEPROM, 20MHz, 28-SSOP, -40°C to 85°C, 1.8V to 5.5V.","salesMarkdown":"## 64 KB Flash, 6 KB SRAM — what the memory split means for firmware fit The 512 bytes of EEPROM are handy for calibration constants or fault logs that survive a power cycle, and the 20 MHz core speed keeps instruction cycles at 50 ns, fast enough for most sensor polling and UART handling at 115200 baud without bit-banging headaches. That wide Vcc tolerance reduces BOM cost by eliminating a separate LDO in many battery-powered or industrial 5 V logic systems. For a production BOM, this is a low-risk choice — no surprise obsolescence notice in the next year. ## 28-SSOP footprint and I/O count The 28-pin SSOP body (0.209\" wide, 5.30 mm) is a common footprint shared with many Microchip 8-bit MCUs, so a board layout for a previous Microchip 28-SSOP part often needs only a firmware recompile. You get 23 GPIOs, plus I²C, SMBus, SPI, and UART/USART peripherals, and a 20-channel 12-bit ADC plus one 10-bit DAC — enough for a sensor node or motor-control interface without external converters.","metaTitle":"Microchip AVR64EA28-I/SS 8-bit MCU, 64KB Flash, 20MHz","metaDescription":"Microchip AVR64EA28-I/SS 8-bit AVR MCU with 64KB Flash, 6KB SRAM, 512B EEPROM, 20MHz, 28-SSOP, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":"AVR® EA","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Microchip Technology","Speed":"20MHz","Series":"AVR® EA","Package":"Tube","RAM Size":"6K x 8","Core Size":"8-Bit","EEPROM Size":"512 x 8","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I2C, SMBus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"23","Core Processor":"AVR","Package / Case":"28-SSOP (0.209\\\", 5.30mm Width)","Product Status":"Active","Data Converters":"A/D 20x12b; D/A 1x10b","Oscillator Type":"External, 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":"28-SSOP","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5200","priceTiers":[{"qty":1,"price":"$1.52000","currency":"USD"},{"qty":25,"price":"$1.39000","currency":"USD"},{"qty":100,"price":"$1.26000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3b849226ce288ae0dfa981f2336b2a3d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/AVR64EA28-I%2FSS/alternatives.json"},"ai":{"faq":[{"question":"What is an alternative to AVR64EA28-I/SS?","answer":"A close functional peer is the AVR32DD28T-I/SS, also an 8-bit AVR in 28-SSOP, but with 32 KB Flash and a 24 MHz core. The AVR64EA28-I/SS offers double the Flash (64 KB) and runs at 20 MHz. If you need more I/O or different peripherals, check the AVR® EA family's other density and package options."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/AVR64EA28-I-SS","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/AVR64EA28-I-SS when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}