Renesas R5F3650KCDFB#V0

Overview

R5F3650KCDFB#V0 from Renesas is a 100-pin LQFP 16-bit microcontroller in the M16C/65C Group, featuring an M16C/60 Series CPU core with 16×16-bit multiplier, 384 KB program ROM, 31 KB RAM, and 4 KB × 2 data flash. It operates at up to 32 MHz (2.7–5.5 V), integrates 26-channel 10-bit A/D converter (1.72 µs conversion), dual 8-bit D/A converters, and CEC functionality for HDMI-CEC control-used in industrial HMI and consumer audio/video subsystems.

For engineers reviewing the R5F3650KCDFB#V0 datasheet, R5F3650KCDFB#V0 pinout, R5F3650KCDFB#V0 application, or R5F3650KCDFB#V0 equivalent, key selection criteria include its -40°C to +85°C industrial temperature grade, integrated three-phase motor control timers (TA1/TA2/TA4/TB2), on-chip dead-time timer, and dual I²C-bus interface supporting multi-master operation.

Technical Context

The R5F3650KCDFB#V0 implements a 16-bit M16C/60 CPU core with hardware multiply-accumulate capability and 91 basic instructions. Its clock system includes main/sub oscillators, 125 kHz low-speed and 40 MHz ±5% high-speed on-chip oscillators, and a PLL frequency synthesizer with selectable divide ratios (1/2/4/8/16).

Peripheral integration includes five 16-bit Timer A units (supporting PWM, encoder input, programmable output), six 16-bit Timer B units (pulse width/period measurement), real-time clock, two remote control signal receivers (32 kHz operation), and UART0–UART2 + UART5–UART7 (6 total asynchronous/synchronous serial channels) plus SI/O3/SI/O4 (2 clock-sync-only channels).

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PLQP0100KB-A, previous code 100P6Q-A), 14 mm × 14 mm × 1.4 mm, 0.5 mm pitch, VCC1/VCC2 dual-supply architecture (VCC1 powers core/peripherals, VCC2 powers external bus pins).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F3650KCDFB#V0, the R5F3650KCNFB#V0 omits CEC and relaxes temperature range, reducing cost for non-HDMI systems; the R5F3651KCDFC#V0 expands I/O and memory addressing but requires larger footprint and layout changes - neither is pin-compatible.

Availability

R5F3650KCDFB#V0 is available at Aetrix Electronics and suitable for industrial HMI, home audio subsystems, smart appliance motor control, and office equipment scanner modules requiring stable component supply across extended temperature ranges.

Supply support for R5F3650KCDFB#V0 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 manufacturer specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.

The M16C/65C Group targets cost-sensitive, real-time embedded applications demanding high peripheral integration, robust EMI immunity, and industrial temperature operation - particularly in audio/video, motor control, and human-machine interface systems.

FAQ

What is the operating temperature range specified for the R5F3650KCDFB#V0?

The R5F3650KCDFB#V0 is rated for -40°C to +85°C ambient operation, meeting industrial-grade thermal requirements. This specification is confirmed in Table 1.6 (D-Version product list) and applies to the PLQP0100KB-A package variant. The device maintains full functionality across this range, including A/D conversion accuracy, oscillator stability, and CEC timing compliance at 32 kHz.

Does the R5F3650KCDFB#V0 support hardware CEC functionality, and how is it implemented?

Yes, the R5F3650KCDFB#V0 includes dedicated CEC circuitry compliant with HDMI CEC standards. Pin P8_5 serves as the bidirectional CEC I/O, and the internal block handles transmit/receive, arbitration loss detection, and automatic ACK generation - all operating at a fixed 32 kHz clock derived from the sub-oscillator. This eliminates need for external CEC transceivers in HDMI-connected devices.

How many A/D converter channels does the R5F3650KCDFB#V0 provide, and what is their resolution and speed?

The R5F3650KCDFB#V0 integrates a 10-bit A/D converter with 26 input channels, including AN0_0–AN0_7, AN0–AN7, ANEX0/ANEX1, and ADTRG. Conversion time is 1.72 µs per sample, enabled by on-chip sample-and-hold. Channel selection and trigger sources (software, timer, external) are fully programmable, supporting simultaneous sampling in multi-sensor industrial monitoring applications.

What peripheral timers are available on the R5F3650KCDFB#V0 for motor control applications?

The R5F3650KCDFB#V0 provides Timer A (5 units) and Timer B (6 units), all 16-bit. For three-phase motor control, it uses TA1, TA2, TA4, and TB2 with on-chip dead-time insertion - enabling generation of six complementary PWM outputs with programmable dead time. Event counter mode on TA units supports two-phase encoder input for position feedback, while TB units measure pulse width/period for rotor speed sensing.

Is the R5F3650KCDFB#V0 pin-compatible with other members of the M16C/65C Group, such as the R5F3650KCNFB#V0?

Yes, the R5F3650KCDFB#V0 and R5F3650KCNFB#V0 share identical 100-pin LQFP (PLQP0100KB-A) packaging and pinout - including power, I/O, timer, serial, and A/D functions. The only functional differences are the operating temperature grade (-40°C to +85°C vs. -20°C to +85°C) and presence of CEC circuitry (enabled on R5F3650KCDFB#V0, absent on R5F3650KCNFB#V0). No PCB changes are required for substitution where CEC is unused.