{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AVR64DB28T-E/SO","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"AVR64DB28T-E-SO","canonicalUrl":"https://icboms.com/microchip/AVR64DB28T-E-SO","factsUrl":"https://icboms.com/api/mcp/products/AVR64DB28T-E%2FSO","rawCanonicalId":null},"summary":{"shortDescription":"Microchip AVR® DB series AVR64DB28T-E/SO, 8-bit AVR MCU, 24MHz, 64KB Flash, 8K x 8 RAM, 512 x 8 EEPROM, 1.8V to 5.5V, -40°C to 125°C, 28-SOIC.","salesMarkdown":"It runs at up to 24 MHz from an internal oscillator, so no external crystal is needed for many timing tasks. The 28-SOIC package handles the thermal cycling well — the wide-body SOIC (7.50 mm width) has decent heat spreading compared to a narrow SOIC, and the -E suffix parts are typically built on a process that holds parametric stability across the full range. ## Memory map and why the EEPROM matters The 8 KB SRAM handles moderate data buffers; if your application streams ADC readings or holds a large lookup table, check that 8 KB covers your worst-case stack and heap. The 512-byte EEPROM is the part that saves you an external serial EEPROM for calibration constants, node IDs, or fault logs. Because it is true EEPROM (not emulated in Flash), you get the rated endurance without wear-leveling code — useful for counters or parameters that change every power cycle. ## On-chip analog: ADC and DAC without external parts Nine 12-bit ADC channels cover most sensor-input needs — thermistors, potentiometers, current-sense resistors — with enough resolution for 0.1% readings. The single 10-bit DAC can generate an analog reference voltage or drive a simple analog output (like a 0-5 V signal) without an external converter. For designs that need more than one analog output, you will need an external DAC or PWM-plus-filter, but for a single output channel this saves a component and a board trace. The part is RoHS3 compliant.","metaTitle":"Microchip AVR64DB28T-E/SO 8-bit MCU, 64KB Flash, 24MHz","metaDescription":"AVR64DB28T-E/SO 8-bit AVR MCU with 64KB Flash, 8KB RAM, 512B EEPROM, 24MHz, 21 I/O, 9x12b ADC, 1x10b DAC, -40°C to 125°C, 28-SOIC.","metaKeywords":null},"attributes":{"series":"AVR® DB","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Microchip Technology","Speed":"24MHz","Series":"AVR® DB","Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"8K x 8","Core Size":"8-Bit","EEPROM Size":"512 x 8","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"21","Core Processor":"AVR","Package / Case":"28-SOIC (0.295\\\", 7.50mm Width)","Product Status":"Active","Data Converters":"A/D 9x12b; D/A 1x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"AVR64DB28","Program Memory Size":"64KB (64K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"28-SOIC","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3500","priceTiers":[{"qty":1,"price":"$2.35000","currency":"USD"},{"qty":25,"price":"$2.13920","currency":"USD"},{"qty":100,"price":"$1.95000","currency":"USD"},{"qty":1600,"price":"$1.95000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/AVR64DB28T-E%2FSO/alternatives.json"},"ai":{"faq":[{"question":"Is the AVR64DB28T-E/SO RoHS compliant?","answer":"Yes, it is ROHS3 Compliant."},{"question":"What is the difference between the AVR64DB28T-E/SO and the AVR64DB28T-I/SO?","answer":"For applications that see sustained temperatures above 85°C, the -E version is the correct choice."},{"question":"Can the AVR64DB28T-E/SO be used with Arduino?","answer":"Yes, the AVR DB family is supported in the Arduino ecosystem through Microchip's megaAVR 0-series core and third-party board packages. The 28-pin SOIC package can be mounted on a breakout board for prototyping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/AVR64DB28T-E-SO","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/AVR64DB28T-E-SO 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}}