Renesas R7FS128783A01CFL#AA0

Overview

R7FS128783A01CFL#AA0 from Renesas is an Arm Cortex-M0+ microcontroller operating at up to 32 MHz, featuring 256 KB code flash, 24 KB SRAM, and integrated DALI, CTSU, USBFS, CAN, and 14-bit ADC - designed for intelligent lighting control, industrial HMI, and low-power embedded systems requiring functional safety and security.

For engineers reviewing the R7FS128783A01CFL#AA0 datasheet, R7FS128783A01CFL#AA0 pinout, R7FS128783A01CFL#AA0 application, or R7FS128783A01CFL#AA0 equivalent, key selection considerations include its 48-pin LQFP package, -40°C to +105°C operation, 15-channel ADC14, triple DAC8 outputs, and hardware-accelerated AES/TRNG for secure firmware updates and device authentication.

Technical Context

This MCU implements a single-core Arm Cortex-M0+ with Armv6-M architecture, Memory Protection Unit (8 regions), and CoreSight MTB-M0+ trace - enabling deterministic real-time execution in safety-critical lighting and motor control applications. It integrates dual watchdogs (WDT/IWDT), ECC-protected SRAM (16 KB), and CAC-based clock accuracy monitoring for ISO 13849 PLd-compliant system design.

The peripheral set includes a dedicated DALI 2.0 module compliant with IEC62386-101, three SCI channels supporting UART/SPI/IIC modes, two independent SPI interfaces, and a USBFS controller with on-chip transceiver and Battery Charging Spec 1.2 support - all coordinated via Event Link Controller (ELC) to minimize CPU intervention and reduce latency in time-sensitive lighting commands.

Key Specifications

Pinout & Package

Package: 48-pin LQFP (PLQP0048KB-B), 7 mm × 7 mm, 0.5 mm pitch, exposed pad for thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FS128783A01CFL#AA0, the CFM variant offers expanded I/O and ADC channel count for gateway-class lighting controllers, while the CNE QFN variant provides identical functionality in a thermally optimized package - making R7FS128783A01CFL#AA0 the optimal balance of feature density, manufacturability, and thermal reliability for mid-tier LED drivers.

Availability

R7FS128783A01CFL#AA0 is available at Aetrix Electronics and suitable for intelligent lighting control, industrial HMI, secure firmware update nodes, and smart building sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7FS128783A01CFL#AA0 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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications - with over 40 years of microcontroller innovation.

The R7FS128783A01CFL#AA0 belongs to the Renesas Synergy™ S128 Microcontroller Group, engineered specifically for cost-sensitive, low-power industrial and lighting applications requiring integrated DALI, touch sensing, and hardware security without external components.

FAQ

What is the maximum operating frequency of the R7FS128783A01CFL#AA0?

The R7FS128783A01CFL#AA0 features an Arm Cortex-M0+ core with a maximum operating frequency of 32 MHz. This speed is achieved using the high-speed on-chip oscillator (HOCO) or external crystal, and is fully supported across its entire operating voltage range (1.6 V to 5.5 V) and temperature range (-40°C to +105°C). The R7FS128783A01CFL#AA0 maintains timing compliance under all specified conditions without derating.

Does the R7FS128783A01CFL#AA0 support DALI 2.0 protocol natively?

Yes, the R7FS128783A01CFL#AA0 includes a dedicated DALI module compliant with IEC62386-101 Edition 2.0 (DALI 2), including software-controlled addressing, scene storage, and backward compatibility with DALI 1.0. The DRX0/DTX0 pins provide direct bus interface, and the hardware accelerator handles frame timing, error detection, and short-circuit protection - eliminating need for external DALI transceivers in R7FS128783A01CFL#AA0-based designs.

How many analog-to-digital converter channels does the R7FS128783A01CFL#AA0 support?

The R7FS128783A01CFL#AA0 integrates a 14-bit successive approximation ADC (ADC14) with 15 selectable analog input channels (AN000–AN013 and AN016–AN022). This count is confirmed in Table 1.14 of the datasheet for the CFL package variant. The R7FS128783A01CFL#AA0 also supports selectable 12-/14-bit resolution modes and internal temperature sensor input for system-level thermal monitoring.

What security features are implemented in hardware on the R7FS128783A01CFL#AA0?

The R7FS128783A01CFL#AA0 includes AES128/256 encryption acceleration, True Random Number Generator (TRNG), SRAM ECC (16 KB), flash area protection, register write protection, and Clock Frequency Accuracy Measurement Circuit (CAC) - all implemented in dedicated hardware blocks. These features enable secure boot, encrypted firmware updates, and tamper-resistant key storage without software overhead, and are fully accessible through the Renesas Synergy Software Package (SSP) for R7FS128783A01CFL#AA0 development.

Is the R7FS128783A01CFL#AA0 pin-compatible with other devices in the S128 family?

No, the R7FS128783A01CFL#AA0 is not pin-compatible with other S128 variants due to differing pin counts and functions: it uses a 48-pin LQFP package (PLQP0048KB-B), whereas the CFM variant uses 64-pin LQFP and the CLM variant uses 36-pin LGA. While software is largely compatible across the S128 family, PCB layout must be specific to the R7FS128783A01CFL#AA0's 48-pin footprint and pin assignments documented in Table 1.15.