Renesas R5F64114DFB#U0

Overview

R5F64114DFB#U0 from Renesas Electronics is a 32-bit CISC microcontroller in the R32C/111 Group, designed for embedded control in industrial and consumer systems. It features a 50 MHz CPU core with IEEE-754 single-precision FPU, 256 KB flash + 8 KB data flash, 40 KB RAM, 100-pin LQFP (PLQP0100KB-A) package, and operates from -40°C to +85°C.

For engineers reviewing the R5F64114DFB#U0 datasheet, R5F64114DFB#U0 pinout, R5F64114DFB#U0 application, or R5F64114DFB#U0 equivalent, key selection criteria include its nine-channel UART/I²C serial interface, 26-channel 10-bit A/D converter, three-phase motor control timer, on-chip DMAC II, and support for external memory expansion up to 64 MB.

Technical Context

The R5F64114DFB#U0 implements the R32C/100 Series CPU core with 108 basic instructions, 20 ns minimum instruction execution time at 50 MHz, and integrated multiplier, MAC unit, and barrel shifter. Its clock system includes four independent sources: main clock (XIN/XOUT), sub clock (XCIN/XCOUT), PLL, and on-chip oscillator - enabling flexible low-power modes including wait and stop.

Peripheral integration centers on deterministic real-time control: Timer A (5×16-bit) supports PWM, encoder input, and one-shot modes; Timer B (6×16-bit) enables pulse-width/frequency measurement; and a dedicated three-phase motor control timer uses TA1–TA4 and TB2 with 8-bit programmable dead-time generation. The DMAC II supports chain transfer triggered by any peripheral interrupt.

Key Specifications

Pinout & Package

Package: 100-pin plastic molded LQFP (PLQP0100KB-A), 0.5 mm pitch, body size 14 mm × 14 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F64114DFB#U0, R5F64115DFB and R5F64112DFB retain identical timing, I/O, and peripheral behavior but scale flash capacity to accommodate larger firmware images - enabling seamless migration within the same PCB footprint and toolchain.

Availability

R5F64114DFB#U0 is available at Aetrix Electronics and suitable for industrial motor control, smart metering, and office equipment requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for R5F64114DFB#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, power, and SoC solutions for automotive, industrial, and IoT markets.

The R32C/111 Group belongs to the high-end R32C/100 Series MCU line, engineered for deterministic real-time control in resource-constrained industrial systems requiring high noise immunity, low power, and rich peripheral integration.

FAQ

What is the maximum operating frequency and voltage range for the R5F64114DFB#U0?

The R5F64114DFB#U0 operates at a maximum frequency of 50 MHz with supply voltages VCC1 = VCC2 = 3.0 V to 5.5 V. Its minimum instruction execution time is 20 ns under these conditions, and it supports low-power wait mode with 8 µA current draw at 3.3 V and 32.768 kHz sub-clock operation.

Does the R5F64114DFB#U0 support external memory expansion, and what address space is available?

Yes, the R5F64114DFB#U0 supports external memory expansion with a total 4 GB address space, of which up to 64 MB is user-accessible. It provides four chip select outputs, wait-state insertion, and configurable bus format (separate or multiplexed) with 8-/16-bit data bus width selection - enabling direct connection to SRAM, NOR flash, or FPGA peripherals.

How many analog input channels does the R5F64114DFB#U0 provide, and what is their resolution?

The R5F64114DFB#U0 integrates a 10-bit resolution A/D converter with up to 26 input channels. These include eight dedicated analog inputs (AN_0 to AN_7), 16 additional channels mapped to port P0 (AN0_0 to AN0_7) and P2 (AN2_0 to AN2_7), and two extended analog inputs (ANEX0/ANEX1) - all supported by integrated sample-and-hold circuitry.

What UART and I²C capabilities does the R5F64114DFB#U0 offer?

The R5F64114DFB#U0 provides nine asynchronous/synchronous serial interface channels (UART0 to UART8). UART0 through UART6 support I²C-bus functionality, and UART0 through UART3 plus UART5 also support Special Mode 2. IEBus is optionally available on UART0–UART6 per Renesas sales office configuration - making it suitable for automotive body control and legacy industrial networks.

Is the R5F64114DFB#U0 pin-compatible with other members of the R32C/111 Group?

Yes, the R5F64114DFB#U0 shares identical 100-pin LQFP (PLQP0100KB-A) packaging and pinout with other 100-pin R32C/111 Group variants including R5F64110DFB, R5F64111DFB, and R5F64112DFB - enabling hardware reuse across different flash/RAM configurations without PCB redesign.