Renesas R5F72166ADFP#V1

Overview

R5F72166ADFP#V1 from Renesas Electronics is a 32-bit RISC microcontroller based on the SuperH™ SH-2A core, featuring 512 KB on-chip Flash memory, 64 KB RAM, and integrated peripherals including SCI, I²C, CAN, and 12-bit ADC. It operates at up to 80 MHz and targets industrial control and motor drive applications requiring deterministic real-time response.

For engineers reviewing the R5F72166ADFP#V1 datasheet, R5F72166ADFP#V1 pinout, R5F72166ADFP#V1 application, or R5F72166ADFP#V1 equivalent, key selection criteria include CAN 2.0B compliance, 80 MHz max CPU clock, 12-bit ADC with 16-channel input multiplexing, and support for single-chip mode with external bus interface capability.

Technical Context

The R5F72166ADFP#V1 implements the SH-2A CPU core with FPU support, executing instructions in a five-stage pipeline with branch prediction. It integrates a Clock Pulse Generator (CPG) supporting multiple clock sources-including crystal resonator, external clock, and internal PLL-with programmable frequency division for peripheral clocks.

System-level features include an Interrupt Controller (INTC) with 128 interrupt sources and 16 priority levels, a Data Transfer Controller (DTC) for autonomous DMA operations, and a Bus State Controller (BSC) enabling external memory expansion up to 16 MB via 16-bit data/24-bit address bus.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level MSL3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F72165ADFP#V1 and R5F72168ADFP#V1, the R5F72166ADFP#V1 offers balanced memory resources (512 KB Flash/64 KB RAM) ideal for mid-complexity industrial firmware with real-time CAN messaging and analog acquisition - avoiding under-provisioning while minimizing cost premium over lower-density variants.

Availability

R5F72166ADFP#V1 is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, and building HVAC controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F72166ADFP#V1 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 industrial, automotive, and infrastructure markets.

The SH7216 Series - including the R5F72166ADFP#V1 - was designed for deterministic real-time control in harsh industrial environments, integrating CAN, high-speed ADC, and robust clock management in a single-chip solution.

FAQ

What is the maximum operating frequency of the R5F72166ADFP#V1?

The R5F72166ADFP#V1 operates at a maximum CPU frequency of 80 MHz, achieved via its integrated Clock Pulse Generator (CPG) with PLL multiplication from an external crystal or clock source. This frequency enables sub-microsecond interrupt latency and deterministic execution of real-time control algorithms. The R5F72166ADFP#V1 maintains timing integrity across temperature ranges from −40°C to +85°C under specified voltage conditions.

Does the R5F72166ADFP#V1 support CAN FD or only classical CAN?

The R5F72166ADFP#V1 integrates a CAN 2.0B controller compliant with ISO 11898-1, supporting classical CAN up to 1 Mbps. It does not support CAN FD features such as flexible data-rate or extended payload length. The R5F72166ADFP#V1's CAN module includes 32 message objects, hardware filtering, and automatic retransmission - sufficient for most industrial fieldbus implementations where FD bandwidth is not required.

What debug interfaces are supported by the R5F72166ADFP#V1?

The R5F72166ADFP#V1 supports IEEE 1149.1 (JTAG) and Serial Wire Debug (SWD) interfaces through its on-chip debug module. These interfaces enable non-intrusive breakpoints, real-time register inspection, and trace capabilities during development and field diagnostics. The R5F72166ADFP#V1 does not require external debug probes beyond standard JTAG/SWD adapters, simplifying test setup and production programming.

Is the R5F72166ADFP#V1 pin-compatible with other SH7216 Series MCUs?

Yes, the R5F72166ADFP#V1 is pin-compatible with other members of the SH7216 Series in the same 144-pin LQFP package, including R5F72165ADFP#V1 and R5F72168ADFP#V1. Pin assignments for power, clock, reset, I/O, and peripheral signals are identical across these variants, allowing hardware reuse and firmware scalability. The R5F72166ADFP#V1 shares identical mechanical and thermal characteristics with its family members.

What is the Flash memory endurance and data retention specification for the R5F72166ADFP#V1?

The R5F72166ADFP#V1 specifies Flash memory endurance of 10,000 write/erase cycles per block and data retention of 20 years at 85°C or 40 years at 25°C. Erase operations are performed in 1 KB sectors, and program operations occur in 64-byte pages. The R5F72166ADFP#V1 includes hardware error detection for Flash programming and supports secure boot verification using on-chip hash calculation.