{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ATTINY44-20SSU","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"ATTINY44-20SSU","canonicalUrl":"https://icboms.com/microchip/ATTINY44-20SSU","factsUrl":"https://icboms.com/api/mcp/products/ATTINY44-20SSU","rawCanonicalId":null},"summary":{"shortDescription":"Microchip AVR® ATtiny 8-bit MCU, ATTINY44-20SSU, 20 MHz, 4 KB Flash, 256 B SRAM, 256 B EEPROM, 14-SOIC, -40 to 85°C, 2.7-5.5 V.","salesMarkdown":"## 20 MHz AVR core with 4 KB Flash — what it buys you The Microchip ATTINY44-20SSU is an 8-bit AVR microcontroller from the ATtiny family, clocked at 20 MHz. It packs 4 KB of Flash program memory, 256 bytes of SRAM, and 256 bytes of EEPROM — enough for small control loops, sensor readout, and configuration storage without external memory. Twelve general-purpose I/O lines, an 8-channel 10-bit ADC, and an internal oscillator keep the BOM lean for applications like PWM dimming, battery monitoring, or simple keypad interfaces. ## 14-SOIC footprint and peripheral set Housed in a 14-lead SOIC with 3.90 mm body width, the part uses a standard SOIC-14 land pattern — no fine-pitch routing required. On-chip peripherals include brown-out detection, power-on reset, PWM, and a watchdog timer, plus a Universal Serial Interface (USI) for basic I²C or SPI communication.","metaTitle":"ATTINY44-20SSU AVR 8-bit MCU, 20 MHz, 4 KB Flash, 14-SOIC","metaDescription":"Microchip ATTINY44-20SSU 8-bit AVR MCU: 20 MHz core, 4 KB Flash, 256 B SRAM, 256 B EEPROM, 12 I/O, 8x10b ADC, 2.7-5.5 V, -40 to 85°C, 14-SOIC.","metaKeywords":null},"attributes":{"series":"AVR® ATtiny","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"20MHz","Series":"AVR® ATtiny","Package":"Tube","RAM Size":"256 x 8","Core Size":"8-Bit","EEPROM Size":"256 x 8","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"USI","Mounting Type":"Surface Mount","Number of I/O":"12","Core Processor":"AVR","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"4KB (2K x 16)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"14-SOIC","Voltage - Supply (Vcc/Vdd)":"2.7V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.36","priceTiers":[{"qty":1,"price":"$2.36000","currency":"USD"},{"qty":25,"price":"$2.16200","currency":"USD"},{"qty":100,"price":"$1.96650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3be51e36f00f8876f178a5c95a78ff9c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ATTINY44-20SSU/alternatives.json"},"ai":{"faq":[{"question":"What is the footprint of ATTINY44-20SSU?","answer":"The part uses a 14-lead SOIC package with a 3.90 mm body width and a 0.154-inch pitch. The supplier device package is 14-SOIC. Standard SOIC-14 land patterns apply."},{"question":"What are the alternatives to ATTINY44-20SSU?","answer":"Microchip offers the ATTINY3224-XUR as a newer tinyAVR 2-series alternative with 32 KB Flash, 9-channel 12-bit ADC, and I²C/SPI/UART at 20 MHz. The AVR32DD28T-I/SS from the AVR DD series provides 32 KB Flash, 24 MHz, and 22 I/O in a 28-pin SSOP. Both are functional upgrades but differ in memory, I/O count, and package — verify pin compatibility before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/ATTINY44-20SSU","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/ATTINY44-20SSU 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}}