Renesas R5F36506NFB#V2

Overview

R5F36506NFB#V2 from Renesas Electronics is a 16-bit M16C/60 Series CPU core microcontroller with 128 KB program ROM, 12 KB RAM, and 4 KB ×2 data flash, operating at up to 32 MHz (2.7–5.5 V), featuring 100-pin LQFP (PLQP0100KB-A) packaging, integrated A/D converter (10-bit ×26 channels), and CEC interface for HDMI control in consumer audio/video systems.

For engineers reviewing the R5F36506NFB#V2 datasheet, R5F36506NFB#V2 pinout, R5F36506NFB#V2 application, or R5F36506NFB#V2 equivalent, key selection criteria include its 100-pin LQFP package, -20°C to +85°C industrial temperature grade, on-chip PLL and real-time clock, three-phase motor control timers, and dual-voltage bus interface supporting 3 V/5 V system integration.

Technical Context

The R5F36506NFB#V2 implements the M16C/60 Series CPU core with 16×16-bit multiplier and 91 basic instructions, achieving 31.25 ns minimum instruction execution time at 32 MHz. It integrates a 5-circuit clock generator (main/sub clocks, 125 kHz/40 MHz oscillators, PLL) with oscillation stop detection and selectable frequency division (1–16).

Its peripheral set includes 4-channel DMAC with 43 trigger sources, 11×16-bit timers (Timer A ×5, Timer B ×6) supporting PWM, encoder input, and three-phase inverter control with on-chip dead-time generation, plus dual 8-bit D/A converters and CRC-CCITT/CRC-16 calculation hardware.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PLQP0100KB-A), 14 mm × 14 mm, 0.5 mm lead pitch, exposed pad not specified. Dual power domains: VCC1 (core/peripherals) and VCC2 (external bus I/O) support mixed-voltage interfacing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F36506NFA#V2, R5F36506NFB#V2 offers identical functionality in a more compact LQFP package with finer pitch, while R5F3651ENFC#V2 provides scalable memory headroom at the cost of increased pin count and PCB area - both alternatives retain full peripheral compatibility and require no firmware changes.

Availability

R5F36506NFB#V2 is available at Aetrix Electronics and suitable for industrial motor drives, HDMI-CEC consumer electronics, and office equipment requiring stable component supply across extended product lifecycles.

Supply support for R5F36506NFB#V2 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and IoT markets.

The M16C/65 Group targets cost-sensitive, high-reliability embedded systems requiring real-time control, mixed-signal integration, and long-term supply stability - especially in audio/video, home appliances, and industrial automation.

FAQ

What is the maximum operating frequency and voltage range for the R5F36506NFB#V2?

The R5F36506NFB#V2 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 supports wait-state insertion for slower external memory interfaces. The R5F36506NFB#V2 maintains full peripheral functionality across this entire voltage range.

Does the R5F36506NFB#V2 support hardware-based HDMI-CEC communication?

Yes, the R5F36506NFB#V2 includes dedicated CEC transmit/receive circuitry compliant with HDMI CEC standards, operating at 32 kHz with automatic ACK output and arbitration loss detection. This hardware block offloads protocol timing and collision handling from firmware, enabling reliable system-wide remote control interoperability without software bit-banging.

What package type and dimensions does the R5F36506NFB#V2 use?

The R5F36506NFB#V2 uses a 100-pin LQFP package designated PLQP0100KB-A, measuring 14 mm × 14 mm with 0.5 mm lead pitch. It features separate VCC1 (core/peripherals) and VCC2 (external bus) power domains, allowing interface with both 3 V and 5 V subsystems on the same board.

How many A/D converter channels does the R5F36506NFB#V2 provide, and what is their resolution?

The R5F36506NFB#V2 integrates a 10-bit successive-approximation A/D converter with 26 input channels, including sample-and-hold capability. Conversion time is 1.72 µs per channel, and inputs are mapped across multiple ports (P0, P2, P10, P9) with flexible multiplexing controlled via register settings in the R5F36506NFB#V2.

Can the R5F36506NFB#V2 perform three-phase motor control without external components?

Yes, the R5F36506NFB#V2 includes dedicated three-phase inverter control logic using Timer A1, A2, A4, and Timer B2 outputs with programmable dead-time insertion. This allows direct generation of complementary PWM signals for gate drivers, eliminating the need for external dead-time ICs or complex FPGA logic in BLDC and PMSM motor applications.