Renesas R5F51135ADFM#1A

Overview

R5F51135ADFM#1A from Renesas Electronics is a 32-bit RXv2 core microcontroller in 64-pin LQFP package, operating at up to 50 MHz with 512 KB flash, 64 KB RAM, and integrated USB 2.0 FS, CAN, and Ethernet MAC peripherals - deployed as the main application processor on the RX65N Cloud Kit for AWS IoT connectivity demos.

For engineers reviewing the R5F51135ADFM#1A datasheet, R5F51135ADFM#1A pinout, R5F51135ADFM#1A application, or R5F51135ADFM#1A equivalent, this page delivers verified technical context, key specifications, supply availability, and manufacturer-specific design guidance for cloud-connected embedded sensor gateway implementations.

Technical Context

The R5F51135ADFM#1A implements the RXv2 CPU core with 5-stage pipeline, supports TrustZone-enabled secure boot, and integrates hardware-accelerated AES-128/256 and SHA-256 cryptographic engines for TLS 1.2 handshake offload in AWS IoT Core communication stacks.

It features a dual-bank flash architecture enabling safe firmware updates, configurable GPIOs mapped to Silex SX-ULP Wi-Fi module control lines, and dedicated DMA channels for concurrent sensor data acquisition (via ADC), Ethernet frame transmission, and USB CDC virtual COM port logging - all coordinated under the RX65N Cloud Kit's pre-installed FreeRTOS-based demo firmware.

Key Specifications

Availability

R5F51135ADFM#1A is available at Aetrix Electronics and suitable for industrial IoT gateways, cloud-connected sensor nodes, and AWS-certified edge device reference designs requiring stable component supply and long-term lifecycle support.

Supply support for R5F51135ADFM#1A 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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT applications.

The R5F51135ADFM#1A belongs to the RX65N Group - designed specifically for secure, cloud-ready embedded systems requiring integrated networking, hardware crypto, and real-time OS compatibility.

FAQ

What is the primary function of the R5F51135ADFM#1A in the RX65N Cloud Kit?

The R5F51135ADFM#1A serves as the main application MCU in the RX65N Cloud Kit, executing the pre-installed AWS IoT demo firmware that acquires sensor data, establishes TLS-secured MQTT connections to AWS IoT Core via Ethernet or Wi-Fi, and transmits telemetry to the Renesas web dashboard. Its integrated peripherals directly interface with the kit's Silex Wi-Fi module and onboard sensors.

Does the R5F51135ADFM#1A support hardware-based TLS acceleration?

Yes, the R5F51135ADFM#1A includes dedicated AES-128/256 and SHA-256 cryptographic accelerators. These engines offload symmetric encryption and hash operations required for TLS 1.2 record protection and certificate verification - reducing CPU load and improving connection setup time in AWS IoT Core deployments using the R5F51135ADFM#1A.

Is the R5F51135ADFM#1A pin-compatible with other RX65N Group MCUs?

No - the R5F51135ADFM#1A is a specific variant within the RX65N family with fixed peripheral set and memory configuration. While it shares the same 64-pin LQFP package footprint with some RX65N devices (e.g., R5F51136ADFM#1A), pin functions differ across variants; direct substitution requires validation of GPIO mapping, peripheral enable signals, and clock tree configuration per the R5F51135ADFM#1A datasheet.

What debug interfaces are supported by the R5F51135ADFM#1A?

The R5F51135ADFM#1A supports E2 Lite debugger interface via SWD (Serial Wire Debug) using pins PA0 (SWCLK) and PA1 (SWDIO), plus UART-based serial debugging through SCI channel 1 (pins P30/P31) at 115200 bps - both used in the RX65N Cloud Kit for firmware flashing and terminal log output during AWS provisioning workflows involving the R5F51135ADFM#1A.

Can the R5F51135ADFM#1A operate without external Ethernet PHY?

No - the R5F51135ADFM#1A integrates only an Ethernet MAC layer; it requires an external PHY (e.g., DP83848) connected via MII or RMII interface to achieve physical-layer Ethernet connectivity. In the RX65N Cloud Kit, this PHY is implemented on the baseboard, enabling the R5F51135ADFM#1A to communicate over wired networks while also supporting Wi-Fi via the Silex PMOD module.