Renesas R5F35L23JFE#U0

Overview

R5F35L23JFE#U0 from Renesas Electronics is a 16-bit flash microcontroller in the M16C/5L Group, featuring an M16C/60 Series CPU core, 96 KB program ROM 1, 16 KB RAM, 8 KB data flash, and integrated CAN 2.0B module. It operates at up to 32 MHz (31.25 ns min instruction time) across 3.0–5.5 V and supports -40°C to +85°C industrial temperature range in an 80-pin LQFP package. It targets automotive control units and factory automation LAN systems requiring real-time I/O, motor control, and robust communication.

For engineers reviewing the R5F35L23JFE#U0 datasheet, R5F35L23JFE#U0 pinout, R5F35L23JFE#U0 application, or R5F35L23JFE#U0 equivalent, key selection criteria include its 80-pin PLQP0080KB-A package, 32-slot CAN message buffer, 27-channel 10-bit A/D converter, five 16-bit Timer A units with PWM and encoder support, and on-chip 40 MHz/125 kHz oscillators with PLL frequency synthesis.

Technical Context

The R5F35L23JFE#U0 implements the M16C/60 Series CPU core with 91 basic instructions, 16×16-bit multiplier, and 16×16+32-bit MAC unit for deterministic real-time processing. Its memory architecture includes separate program ROM 1 (96 KB), program ROM 2, and data flash (8 KB) with 10,000-cycle endurance and ROM code protection.

Peripherals include a 32-slot CAN controller compliant with ISO 11898-1, four UART channels plus one UART/I²C/IEBus channel, multi-master I²C-bus interface, 27-channel 10-bit A/D converter, four-channel DMAC with 41 trigger sources, and dedicated three-phase motor control timer using TA1, TA2, TA4, and TB2 with on-chip dead-time generation.

Key Specifications

Pinout & Package

Package: 80-pin plastic mold LQFP (PLQP0080KB-A), 14 mm × 14 mm × 1.4 mm, 0.65 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F35L23JFE#U0, R5F35L26JFE#U0 offers expanded program memory without peripheral trade-offs, while R5F35623JFE#U0 removes CAN and reduces I/O count-making it viable only where network connectivity is omitted and layout area is critical.

Availability

R5F35L23JFE#U0 is available at Aetrix Electronics and suitable for automotive body control modules, factory automation CAN nodes, and industrial motor drive controllers requiring stable component supply across extended product lifecycles.

Supply support for R5F35L23JFE#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/5L Group, including R5F35L23JFE#U0, was designed for real-time embedded control in harsh environments-emphasizing CAN integration, motor timing precision, and industrial-grade reliability.

FAQ

What is the operating temperature range for the R5F35L23JFE#U0?

The R5F35L23JFE#U0 is rated for operation from -40°C to +85°C, as indicated by the 'J' suffix in its part number. This industrial temperature grade ensures reliable performance in automotive cabin modules and factory-floor control equipment where ambient conditions fluctuate significantly. The device meets Renesas' specifications under these conditions when powered within its 3.0–5.5 V supply range.

Does the R5F35L23JFE#U0 include an integrated CAN controller?

Yes, the R5F35L23JFE#U0 includes a single-channel CAN 2.0B controller with a 32-slot message buffer, as confirmed in Table 1.2 and Figure 1.3 of the datasheet. This feature is exclusive to the M16C/5L Group and enables direct connection to external CAN transceivers via dedicated CTX0 and CRX0 pins, supporting both standard and extended frame formats in automotive and industrial networks.

What package type does the R5F35L23JFE#U0 use?

The R5F35L23JFE#U0 uses an 80-pin plastic LQFP package designated PLQP0080KB-A (formerly 80P6Q-A), measuring 14 mm × 14 mm with 0.65 mm lead pitch. This package supports 71 CMOS I/Os with selectable pull-up resistors and is optimized for thermal dissipation and mechanical stability in high-vibration environments such as automotive and industrial control applications.

How much flash memory does the R5F35L23JFE#U0 provide?

The R5F35L23JFE#U0 integrates 96 KB of program ROM 1, 16 KB of RAM, and 8 KB of data flash. The data flash supports 10,000 write/erase cycles and features ROM code protection and ID code check for secure firmware updates. This memory configuration balances runtime performance with field-upgradable parameter storage in applications like motor drives and smart appliances.

Which oscillator options are available on the R5F35L23JFE#U0?

The R5F35L23JFE#U0 includes five clock sources: main clock (external crystal/ceramic resonator via XIN/XOUT), sub-clock (external crystal via XCIN/XCOUT), PLL frequency synthesizer, 40 MHz on-chip oscillator, and 125 kHz on-chip oscillator (dedicated to the watchdog timer). These options enable flexible clock tree design-supporting low-power stop modes, precise real-time clock operation, and fail-safe watchdog timing without external components.