Renesas R5F36506DFA#U0

Overview

R5F36506DFA#U0 from Renesas Electronics is a 16-bit M16C/60 Series CPU core microcontroller with 128 KB program ROM, 12 KB RAM, and 4 KB data flash, operating at up to 32 MHz (2.7–5.5 V), featuring integrated A/D (10-bit × 26 ch), D/A (8-bit × 2), CEC interface, and three-phase motor control timers - used in industrial HMI and consumer audio/video equipment.

For engineers reviewing the R5F36506DFA#U0 datasheet, R5F36506DFA#U0 pinout, R5F36506DFA#U0 application, or R5F36506DFA#U0 equivalent, key selection criteria include its -40°C to +85°C industrial temperature grade, 100-pin QFP package (PRQP0100JD-B), CEC compliance for HDMI-CEC remote control, and on-chip dead-time timer for inverter gate drive.

Technical Context

The R5F36506DFA#U0 implements the M16C/60 CPU core with 16×16-bit multiplier and 91 basic instructions, executing at minimum 31.25 ns per instruction at 32 MHz. It integrates dual clock domains: main/sub oscillators plus 40 MHz ±10% on-chip high-speed oscillator and PLL frequency synthesizer.

Peripheral integration includes six UART/serial channels (UART0–UART2, UART5–UART7), multi-master I²C-bus interface, two remote control signal receivers (32 kHz operation), and dedicated three-phase inverter control logic using Timer A1/A2/A4 and Timer B2 with on-chip dead time generation.

Key Specifications

Pinout & Package

Package: 100-pin QFP (PRQP0100JD-B), 0.65 mm lead pitch, body size 14 × 20 mm, exposed pad not present. Designed for industrial PCB layouts requiring EMI resilience and thermal stability under continuous operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit MCU applications.

Compared with R5F36506DFA#U0, the R5F36506DFB#U0 offers identical functionality in an LQFP package for improved manufacturability, while R5F3650EDFA#U0 extends ROM/RAM for feature-rich firmware - neither alters CEC, motor control, or A/D capabilities.

Availability

R5F36506DFA#U0 is available at Aetrix Electronics and suitable for industrial HMI panels, consumer audio receivers, home appliance motor control, and office equipment power management requiring stable component supply across extended temperature ranges.

Supply support for R5F36506DFA#U0 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 is a global semiconductor leader specializing in microcontrollers, analog, and power management solutions for automotive, industrial, and IoT markets.

The M16C/65 Group is designed for cost-sensitive, real-time embedded applications demanding high peripheral integration, industrial temperature operation, and low-power mixed-signal control - particularly in audio/video, motor drive, and appliance systems.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F36506DFA#U0?

The R5F36506DFA#U0 operates at up to 32 MHz with a supply voltage range of 2.7 V to 5.5 V on both VCC1 and VCC2 pins. Its minimum instruction execution time is 31.25 ns under these conditions, and it maintains full functionality across the entire industrial temperature range of -40°C to +85°C. This makes R5F36506DFA#U0 suitable for high-reliability embedded designs where timing predictability and voltage flexibility are critical.

Does the R5F36506DFA#U0 support HDMI CEC functionality, and how is it implemented?

Yes, the R5F36506DFA#U0 includes a fully compliant HDMI CEC transceiver implemented on Pin P8_5 (NMI/SD/CEC). It operates at 32 kHz and supports CEC transmit/receive, arbitration lost detection, and automatic ACK output per HDMI CEC v1.4. No external transceiver is needed - the R5F36506DFA#U0 handles physical layer signaling and protocol framing internally, reducing system BOM and PCB area.

What motor control features are integrated into the R5F36506DFA#U0?

The R5F36506DFA#U0 integrates dedicated three-phase motor control logic using Timer A1, A2, A4, and Timer B2, including an on-chip dead-time timer to prevent shoot-through in inverter bridges. It supports complementary PWM generation, two-phase encoder input, and pulse width measurement - enabling direct control of BLDC or induction motors without external timing ICs. This capability is confirmed in the R5F36506DFA#U0 datasheet Section 1.2 and Figure 1.4 block diagram.

How many A/D and D/A converter channels does the R5F36506DFA#U0 provide, and what are their resolutions?

The R5F36506DFA#U0 provides a 10-bit resolution A/D converter with 26 input channels, including sample-and-hold circuitry, and two independent 8-bit D/A converter circuits. These converters are powered by dedicated analog supplies (AVCC/AVSS) and support conversion times as fast as 1.72 µs. This analog capability is integral to R5F36506DFA#U0's role in sensor-based closed-loop control and audio signal conditioning.

What debug and programming interfaces are supported by the R5F36506DFA#U0?

The R5F36506DFA#U0 supports on-chip debug via a dedicated interface compatible with Renesas E1/E20 emulators, enabling real-time code execution control, register inspection, and flash memory rewriting without external hardware. It includes four address match interrupts for precise breakpoint placement. The R5F36506DFA#U0 does not require JTAG; debugging is performed through the built-in serial interface, simplifying test fixture design and field firmware updates.