Renesas R7FS124773A01CFM#AA0

Overview

R7FS124773A01CFM from Renesas is an ultra-low-power 32-MHz Arm® Cortex-M0+ microcontroller with 128-KB code flash, 16-KB SRAM, integrated USB 2.0 Full-Speed (with BC1.2), CAN 2.0B, CTSU for capacitive touch, 14-bit ADC (18 channels), and 12-bit DAC-designed for industrial HMI, smart sensors, and battery-powered control systems requiring functional safety and security.

For engineers reviewing the R7FS124773A01CFM datasheet, R7FS124773A01CFM pinout, R7FS124773A01CFM application, or R7FS124773A01CFM equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options aligned to the S124 Group's documented feature set and temperature grade (–40°C to +105°C).

Technical Context

The R7FS124773A01CFM implements a single-core Arm Cortex-M0+ (Armv6-M, r0p1-00rel0) operating at up to 32 MHz, with CoreSight MTB-M0+ trace and SW-DP debug. It integrates dual watchdogs (WDT and IWDT), SRAM parity checking, Flash area protection, and CAC for clock accuracy validation-enabling IEC 61508-compliant system monitoring in industrial environments.

Its peripheral architecture includes three SCI modules (UART/IIC/SPI), two independent SPI channels, two I2C interfaces, one CAN 2.0B controller (32 mailboxes), USBFS with on-chip transceiver and LDO, and a dedicated Capacitive Touch Sensing Unit (CTSU) supporting up to 31 electrodes-coordinated via Event Link Controller (ELC) to minimize CPU intervention.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (PLQP0064KB-C), 10 mm × 10 mm, 0.5 mm pitch, operating at –40°C to +105°C.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R7FS124773A01CFM, R7FS124773A01CNB offers identical functionality in a smaller thermal package, while R7FS124763A01CFM trades flash capacity and CTSU for lower unit cost-both retain full CAN, USBFS, and safety features required for industrial control.

Availability

R7FS124773A01CFM is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, BLDC motor drives, and functional safety PLC modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7FS124773A01CFM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The R7FS124773A01CFM belongs to the Renesas Synergy™ S124 Microcontroller Group-designed specifically for ultra-low-power, functionally safe, and secure industrial edge applications with integrated human-machine interface and mixed-signal capabilities.

FAQ

What is the maximum operating frequency and core architecture of the R7FS124773A01CFM?

The R7FS124773A01CFM uses an Arm Cortex-M0+ core based on the Armv6-M architecture, with a maximum operating frequency of 32 MHz. It implements revision r0p1-00rel0 and includes a single-cycle integer multiplier, SysTick timer, and CoreSight MTB-M0+ trace. This configuration delivers deterministic real-time performance while maintaining ultra-low power consumption-key for battery-operated and thermally constrained R7FS124773A01CFM deployments.

Does the R7FS124773A01CFM support USB Battery Charging Specification 1.2?

Yes, the R7FS124773A01CFM's integrated USB 2.0 Full-Speed Module fully supports USB Battery Charging Specification 1.2. Its on-chip transceiver and LDO regulator enable direct 5-V USB power negotiation, allowing up to 1.5 A charging current detection without external circuitry. This capability is confirmed in the R01DS0264EU0140 datasheet section 24 and applies specifically to the R7FS124773A01CFM variant with its VCC_USB_LDO and USB_DP/USB_DM pins.

What analog peripherals are integrated into the R7FS124773A01CFM?

The R7FS124773A01CFM integrates a 14-bit successive approximation ADC (ADC14) with up to 18 input channels, a 12-bit DAC (DAC12) with output amplifier, two low-power analog comparators (ACMPLP), and an on-die temperature sensor (TSN). These are all accessible through dedicated pins (e.g., AN000–AN022, DA0, CMPIN0/CMPIN1) and support simultaneous sampling, internal reference selection, and programmable response speed-enabling precision sensor conditioning and closed-loop control within the R7FS124773A01CFM.

How many I/O pins does the R7FS124773A01CFM provide, and what are their key electrical characteristics?

The R7FS124773A01CFM in its 64-pin LQFP package provides up to 48 CMOS I/O pins, 3 dedicated input-only pins, 5-V tolerance on 5 pins, and 20-mA drive capability on 16 pins. Pull-up resistors are available on all 48 I/Os, and 19 pins support N-ch open-drain outputs. These specifications are explicitly defined for the PLQP0064KB-C package in Table 1.12 of the R01DS0264EU0140 datasheet and apply directly to the R7FS124773A01CFM.

What safety and security features does the R7FS124773A01CFM include?

The R7FS124773A01CFM includes SRAM parity error checking, Flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement (CAC), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), Port Output Enable for GPT (POEG), Independent Watchdog Timer (IWDT), GPIO readback level detection, register write protection, and AES128/256 with True Random Number Generator (TRNG). All are documented in the R01DS0264EU0140 datasheet and implemented in silicon for the R7FS124773A01CFM.