{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MEC1521H-B0-I/TF-TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MEC1521H-B0-I-TF-TR","canonicalUrl":"https://icboms.com/microchip/MEC1521H-B0-I-TF-TR","factsUrl":"https://icboms.com/api/mcp/products/MEC1521H-B0-I%2FTF-TR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip MEC152x series embedded controller, ARM Cortex-M4, 224KB SRAM, 108 I/O, I²C/PS/2/QSPI/SMBus/SPI/UART, 1.71V–3.465V, -40°C to 85°C, 128-WFBGA (7x7 mm), Tape & Reel.","salesMarkdown":"## Embedded controller with ARM Cortex-M4 — no Flash, all SRAM The Microchip MEC1521H-B0-I/TF-TR is an embedded controller built around an ARM Cortex-M4 core, part of the MEC152x family. It carries 224 KB of SRAM as its program memory. ## 108 I/O and the peripheral set — what connects where With 108 general-purpose I/O and interfaces spanning I²C, QSPI, SMBus, SPI, and UART, this part connects to a keyboard matrix, trackpad, fingerprint reader, and sensors. The ROHS3 compliance is confirmed.","metaTitle":"Microchip MEC1521H-B0-I/TF-TR Embedded Controller","metaDescription":"Microchip MEC1521H-B0-I/TF-TR embedded controller with ARM Cortex-M4 core, 224KB SRAM, 108 I/O, I²C/PS/2/QSPI/SMBus/SPI/UART interfaces, -40°C to 85°C","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"32K x 8","Interface":"I²C, PS/2, QSPI, SMBus, SPI, UART","Applications":"Keyboard and Embedded Controller","Mounting Type":"Surface Mount","Number of I/O":"108","Core Processor":"ARM® Cortex®-M4","Package / Case":"128-WFBGA","lifecycle_stage":"eol_hot","Voltage - Supply":"1.71V ~ 3.465V","Controller Series":"MEC152x","Program Memory Type":"SRAM (224kB)","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"128-WFBGA (7x7)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.18","priceTiers":[{"qty":1,"price":"$5.18000","currency":"USD"},{"qty":25,"price":"$4.31000","currency":"USD"},{"qty":100,"price":"$4.16250","currency":"USD"},{"qty":3000,"price":"$4.16250","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/688df2301cd7e2da0bee24134d1e1905.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MEC1521H-B0-I%2FTF-TR/alternatives.json"},"ai":{"faq":[{"question":"Is MEC1521H-B0-I/TF-TR compatible with standard PS/2 keyboards?","answer":"Yes, the interface list includes PS/2, so it can communicate with a standard PS/2 keyboard or mouse. The PS/2 interface is typically handled through dedicated I/O pins with the protocol managed in firmware."},{"question":"What is the difference between MEC1521 and MEC1523?","answer":"The evidence does not provide a direct comparison between MEC1521 and MEC1523. Both belong to the MEC152x controller series, but the specific differences in SRAM size, I/O count, or peripheral set are not in the record for this part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MEC1521H-B0-I-TF-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MEC1521H-B0-I-TF-TR 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}}