Renesas R5F3650ENFB#30

Overview

R5F3650ENFB#30 from Renesas is a 16-bit M16C/60 Series CPU core microcontroller with 256 KB program ROM, 20 KB RAM, and 4 KB × 2 data flash, operating at up to 32 MHz (31.25 ns min instruction time) across 2.7–5.5 V supply. It integrates 10-bit A/D converter (26 channels), dual 8-bit D/A converters, CEC interface, three-phase motor control timers, and real-time clock - deployed in industrial HMI and consumer audio subsystems.

For engineers reviewing the R5F3650ENFB#30 datasheet, R5F3650ENFB#30 pinout, R5F3650ENFB#30 application, or R5F3650ENFB#30 equivalent, key selection criteria include its 100-pin LQFP package (PLQP0100KB-A), -40°C to +85°C industrial temperature grade, integrated CEC transceiver for HDMI-CEC compliance, and on-chip dead-time timer for inverter gate drive.

Technical Context

The R5F3650ENFB#30 implements the M16C/60 CPU core with 16×16-bit multiplier and 91 basic instructions, supporting single-chip, memory expansion, and microprocessor modes. Its clock system includes main/sub oscillators, 125 kHz low-speed and 40 MHz ±10% high-speed on-chip oscillators, and PLL frequency synthesizer with selectable divide ratios (1/2/4/8/16).

Peripheral integration includes five 16-bit Timer A units (with PWM, encoder input, programmable output), six 16-bit Timer B units (pulse width/period measurement), UART0–2/5–7 (6 total), I²C-bus, SI/O, CEC (32 kHz operation), CRC-CCITT/CRC-16 calculator, and DMAC with 4 channels and 43 trigger sources.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PLQP0100KB-A), 14 mm × 14 mm, 0.5 mm pitch, exposed pad not specified. Dual power rails: VCC1 (core/I/O), VCC2 (external bus), AVCC/AVSS (analog section).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F3650EDFB#30, R5F3650ENFB#30 provides 128 KB more program ROM and 8 KB more RAM for complex HMI or protocol stacks; compared with R5F3651ENFC#30, it trades 28 pins and external bus capability for compact 100-pin layout and lower system cost.

Availability

R5F3650ENFB#30 is available at Aetrix Electronics and suitable for industrial HMI panels, HDMI-CEC subsystems, audio system controllers, and three-phase motor drives requiring stable component supply across extended temperature ranges.

Supply support for R5F3650ENFB#30 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, power, and SoC solutions for automotive, industrial, and IoT markets.

The M16C/65 Group targets cost-effective, high-integration embedded control in consumer electronics and industrial equipment - emphasizing mixed-signal capability, EMI resilience, and legacy-compatible instruction sets.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F3650ENFB#30?

The R5F3650ENFB#30 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. At 32 MHz, the minimum instruction execution time is 31.25 ns. The device supports multiple operating modes including single-chip, memory expansion, and microprocessor configurations - all validated across the full voltage and temperature range (-40°C to +85°C).

Does the R5F3650ENFB#30 include hardware support for HDMI-CEC communication?

Yes, the R5F3650ENFB#30 integrates a dedicated CEC function compliant with HDMI CEC standards, including transmit/receive capability, arbitration lost detection, and automatic ACK output - all operating at 32 kHz. Pin P8_5 serves as the bidirectional CEC signal line, and no external transceiver is required for basic CEC implementation in TVs, soundbars, or set-top boxes.

What are the A/D and D/A converter specifications of the R5F3650ENFB#30?

The R5F3650ENFB#30 features a 10-bit A/D converter with 26 input channels and 1.72 µs conversion time, including sample-and-hold circuitry. It also includes two independent 8-bit D/A converters (pins P9_3 and P9_4) for analog waveform generation or calibration reference outputs - both fully integrated and controllable via on-chip registers without external components.

Which package type and pin count does the R5F3650ENFB#30 use?

The R5F3650ENFB#30 uses a 100-pin LQFP package designated PLQP0100KB-A (formerly 100P6Q-A), measuring 14 mm × 14 mm with 0.5 mm lead pitch. This package supports industrial temperature operation (-40°C to +85°C) and provides 85 CMOS I/O ports with selectable pull-up resistors plus 3 N-channel open-drain outputs - matching the FB suffix designation in the part number.

How does the R5F3650ENFB#30 support three-phase motor control?

The R5F3650ENFB#30 supports three-phase motor control through dedicated timer resources: Timer A1, A2, A4, and Timer B2 are configured for inverter gate drive, with an on-chip dead-time timer ensuring safe complementary PWM output. This eliminates external dead-time ICs and simplifies gate driver design for HVAC compressors, industrial pumps, and appliance motors - all managed in hardware without CPU intervention.