Renesas M306N4FCTGP#U0

Overview

M306N4FCTGP#U0 from Renesas Electronics is a 16-bit microcontroller in the M16C/6N Group (M16C/6N4), built on high-performance silicon gate CMOS with the M16C/60 Series CPU core. It features 128 KB + 4 KB flash memory, 5 KB RAM, dual CAN 2.0B modules, 10-bit A/D converter (26 channels), and operates at up to 24 MHz (41.7 ns min instruction time) within 4.2–5.5 V supply. It targets automotive T-grade systems requiring robust real-time control.

For engineers reviewing the M306N4FCTGP#U0 datasheet, M306N4FCTGP#U0 pinout, M306N4FCTGP#U0 application, or M306N4FCTGP#U0 equivalent, key selection criteria include its T-grade temperature range (−40°C to +85°C), 100-pin LQFP package (PLQP0100KB-A), dual CAN interface compliance, integrated DMAC and multiplier, and support for single-chip and memory expansion modes.

Technical Context

The M306N4FCTGP#U0 implements the M16C/60 Series CPU core with 91 fundamental instructions and supports three operating modes: single-chip, memory expansion, and microprocessor. Its architecture integrates two independent CAN 2.0B controllers, a 15-bit watchdog timer with prescaler, and a CRC-CCITT calculation circuit for data integrity.

Peripheral integration includes five 16-bit Timer A channels, six 16-bit Timer B channels, three serial interfaces (UART, clock-synchronous, I²C-bus), and a three-phase motor control circuit. Clock generation uses four circuits: main/sub oscillation, on-chip oscillator, and PLL frequency synthesizer - enabling flexible system timing across automotive and industrial environments.

Key Specifications

Pinout & Package

Package: 100-pin plastic LQFP (PLQP0100KB-A), 0.5 mm pitch, 14 mm × 14 mm body, exposed pad not specified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with M306N4FCTGP#U0, the R5F566TEADFP#30 offers CAN FD and higher clock speed but removes integrated three-phase PWM logic; the MB9BF516RPMC-G-S2 delivers greater computational headroom and modern toolchain support but increases BOM cost and layout complexity due to external motor interface requirements.

Availability

M306N4FCTGP#U0 is available at Aetrix Electronics and suitable for automotive body control, industrial PLC I/O subsystems, and car audio head units requiring stable component supply and long-term lifecycle assurance.

Supply support for M306N4FCTGP#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The M16C/6N Group was designed for cost-sensitive, real-time embedded control in automotive and industrial equipment - emphasizing CAN connectivity, motor control integration, and extended temperature reliability without sacrificing code density or interrupt latency.

FAQ

What is the maximum operating frequency and corresponding supply voltage for M306N4FCTGP#U0?

The M306N4FCTGP#U0 achieves a maximum operating frequency of 24 MHz with a minimum instruction execution time of 41.7 ns, requiring a supply voltage of 4.2–5.5 V. This specification applies specifically to the T-version (−40°C to +85°C), as confirmed in the REJ03B0003-0240 datasheet Rev.2.40. Operation outside this voltage range may cause timing violations or functional failure.

Does M306N4FCTGP#U0 support in-system programming of its flash memory?

Yes, M306N4FCTGP#U0 supports in-system programming (ISP) of its 128 KB + 4 KB flash memory, including the dedicated 4 KB data flash block (Block A). Programming and erasure require 3.0 ± 0.3 V or 5.0 ± 0.5 V, with guaranteed endurance of 100 cycles per block. The M306N4FCTGP#U0 implements on-chip erase/program control logic, eliminating need for external high-voltage generators.

How many CAN interfaces does M306N4FCTGP#U0 integrate, and what protocol versions are supported?

M306N4FCTGP#U0 integrates two independent CAN modules compliant with ISO 11898-1:2003 (CAN 2.0B Active). Both controllers support full 29-bit extended identifier frames and 11-bit standard frames, with programmable bit timing, message objects, and acceptance filtering. No CAN FD or higher-layer protocol (e.g., CANopen) is implemented in hardware - those layers require firmware implementation.

What is the A/D converter resolution, channel count, and key timing specification for M306N4FCTGP#U0?

The M306N4FCTGP#U0 features a 10-bit successive-approximation A/D converter with 26 input channels - including 8 dedicated AN0_x pins, 8 AN2_x pins, and 10 additional analog-capable ports (AN0–AN7, ANEX0/1, ADTRG). Conversion time is 1.5 µs per sample at maximum clock, with hardware-triggered start capability via the ADTRG pin for synchronized sampling.

Which package type and pin count does M306N4FCTGP#U0 use, and is it RoHS compliant?

M306N4FCTGP#U0 uses the PLQP0100KB-A package: a 100-pin plastic LQFP with 0.5 mm pitch and 14 mm × 14 mm body size. Per Renesas documentation (REJ03B0003-0240) and corporate environmental policy, the device complies with EU RoHS Directive 2011/65/EU - lead-free terminations and halogen-free molding compound are standard. Full compliance documentation is available via Renesas' environmental portal.