{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"R7FS3A77C3A01CNB#AC1","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"R7FS3A77C3A01CNBAC1","canonicalUrl":"https://icboms.com/renesas/R7FS3A77C3A01CNBAC1","factsUrl":"https://icboms.com/api/mcp/products/R7FS3A77C3A01CNB%23AC1","rawCanonicalId":null},"summary":{"shortDescription":"Renesas Synergy™ S3 R7FS3A77C3A01CNB#AC1, 32-Bit ARM Cortex-M4 MCU, 48MHz, 1MB FLASH, 192K x 8 RAM, 16K x 8 EEPROM, 50 I/O, 64-WFQFN Exposed Pad, -40°C to 105°C.","salesMarkdown":"## ARM Cortex-M4 at 48 MHz — what it means for the control loop The Renesas Synergy S3 R7FS3A77C3A01CNB#AC1 is a 32-bit ARM Cortex-M4 single-core MCU clocked at 48 MHz, with 1 MB of Flash program memory, 192 KB of RAM, and 16 KB of on-chip EEPROM. ## Memory and analog integration — BOM consolidation With 1 MB Flash and 192 KB RAM, this MCU holds a substantial firmware image and data buffer for protocol stacks or motor-control lookup tables. The 16 KB EEPROM stores calibration constants and configuration parameters without an external serial EEPROM. The 18-channel 14-bit ADC captures multiple analog inputs — current-sense resistors, thermistors, potentiometers — on a single chip, while the dual 12-bit DAC generates analog setpoints or reference voltages. This integration reduces external component count and board area. ## Industrial temperature grade and package Rated for -40°C to 105°C ambient, the device is specified for environments where the PCB sees elevated temperatures. ## Lifecycle and sourcing posture The R7FS3A77C3A01CNB#AC1 carries an Active product status with ROHS3 compliance. No end-of-life notification or last-time-buy window is in effect. For dual-sourcing resilience, the Renesas RA2E1 series (R7FA2E1A52DFL#AA0) offers a 48 MHz Cortex-M23 alternative with similar connectivity but a smaller I/O count and narrower temperature range, while the RA2L1 (R7FA2L1A92DFM#AA0) adds CANbus and a 12-bit DAC. Neither is a drop-in replacement — verify pin compatibility and peripheral differences before substituting.","metaTitle":"Renesas R7FS3A77C3A01CNB#AC1 Synergy S3 MCU","metaDescription":"R7FS3A77C3A01CNB#AC1 is a 32-bit ARM Cortex-M4 MCU with 1MB Flash, 192KB RAM, 16KB EEPROM, 48MHz speed, industrial temp range -40°C to 105°C.","metaKeywords":null},"attributes":{"series":"Renesas Synergy™ S3","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Speed":"48MHz","Series":"Renesas Synergy™ S3","Package":"Tray","RAM Size":"192K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"16K x 8","Peripherals":"DMA, LVD, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, MMC/SD, SCI, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"50","Core Processor":"ARM® Cortex®-M4","Package / Case":"64-WFQFN Exposed Pad","Data Converters":"A/D 18x14b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"1MB (1M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 105°C (TA)","Supplier Device Package":"64-HWQFN (8x8)","Voltage - Supply (Vcc/Vdd)":"1.6V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$16.18","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$16.18000","currency":"USD"},{"qty":10,"price":"$14.87100","currency":"USD"},{"qty":25,"price":"$14.25440","currency":"USD"},{"qty":100,"price":"$12.55920","currency":"USD"},{"qty":250,"price":"$11.94276","currency":"USD"},{"qty":500,"price":"$11.18900","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/98dd77396203f25456bedac27ba74e39.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What development tools support the R7FS3A77C3A01CNB#AC1?","answer":"As a Renesas Synergy S3 device, it is supported by the Renesas Synergy Software Package (SSP) and e² studio IDE. The ARM Cortex-M4 core is also compatible with Keil MDK and IAR Embedded Workbench."},{"question":"Are there any cross-reference or substitute parts for R7FS3A77C3A01CNB#AC1?","answer":"No direct drop-in substitute is listed. The Renesas RA2E1 (R7FA2E1A52DFL#AA0) and RA2L1 (R7FA2L1A92DFM#AA0) series offer 48 MHz Cortex-M23 alternatives with different I/O counts and peripheral sets."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/R7FS3A77C3A01CNBAC1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/R7FS3A77C3A01CNBAC1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}