Renesas R5F10BAEKSP#W5

Overview

R5F10BAEKSP#W5 from Renesas Electronics is a 16-bit RL78/F13 microcontroller with CAN and LIN physical layer support, 64 KB flash memory, 4 KB RAM, and 48-pin LQFP package. It integrates a 32 MHz max CPU clock, 12-bit ADC (12 channels), 8-bit D/A converter, and hardware real-time clock. Designed for automotive body electronics and industrial control nodes requiring robust serial communication.

For engineers reviewing the R5F10BAEKSP#W5 datasheet, R5F10BAEKSP#W5 pinout, R5F10BAEKSP#W5 application, or R5F10BAEKSP#W5 equivalent, key selection criteria include CAN 2.0B compliance, LIN 2.2/SAE J2602 support, integrated voltage regulator (V_DD = 2.7–5.5 V), low-power stop mode (0.35 µA), and AEC-Q100 Grade 2 qualification.

Technical Context

The R5F10BAEKSP#W5 implements the RL78 CPU core with 16-bit CISC architecture, supporting 1.6 µs instruction cycle at 32 MHz. It features dual CAN controllers with message RAM and FIFO, plus a dedicated LIN master/slave controller with automatic checksum generation and break detection.

On-chip peripherals include a 12-bit successive-approximation ADC with sample-and-hold, 8-bit D/A converter with internal reference, 16-bit timer arrays (T0–T3) with PWM output, and a hardware real-time clock with calendar function. All operate within the same 2.7–5.5 V supply range and support temperature range of −40°C to +105°C.

Key Specifications

Pinout & Package

Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10BAEKSP#W5, the R5F10BBEKSP#W5 sacrifices CAN and half the memory for lower cost in LIN-only roles, while the MC9S12G128MAL demands external components and consumes more power - making R5F10BAEKSP#W5 optimal for new CAN+LIN node designs requiring integration and low-power operation.

Availability

R5F10BAEKSP#W5 is available at Aetrix Electronics and suitable for automotive body electronics, industrial LIN gateways, smart lighting control units, and motorized HVAC actuators requiring stable component supply and long-term manufacturing continuity.

Supply support for R5F10BAEKSP#W5 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/F13 product line delivers cost-optimized, low-power 16-bit MCUs with integrated CAN and LIN for automotive body electronics and industrial control nodes - designed to replace discrete protocol interfaces with single-chip integration.

FAQ

What is the maximum operating frequency of the R5F10BAEKSP#W5?

The R5F10BAEKSP#W5 operates at a maximum CPU clock frequency of 32 MHz, achieved using the on-chip high-speed oscillator (HOCO) or an external crystal/resonator. This frequency enables sub-microsecond interrupt response and real-time execution of control algorithms such as PID loops or LIN frame processing. The R5F10BAEKSP#W5 maintains full peripheral functionality-including dual CAN and LIN-at this speed, with timing specifications validated across the full −40°C to +105°C temperature range.

Does the R5F10BAEKSP#W5 include an integrated LIN transceiver?

No, the R5F10BAEKSP#W5 includes a LIN protocol controller but not a physical-layer transceiver. It provides dedicated LINRX and LINTX pins (P10 and P11) that interface with external LIN transceivers such as the TJA1021 or MCP2021. The R5F10BAEKSP#W5 handles all protocol-level functions-frame formatting, checksum calculation, synchronization, and wake-up detection-while the external transceiver manages bus voltage levels and fault protection per ISO 17987-2.

Is the R5F10BAEKSP#W5 qualified for automotive applications?

Yes, the R5F10BAEKSP#W5 is AEC-Q100 Grade 2 qualified (−40°C to +105°C), meeting automotive reliability standards for body electronics applications. It includes built-in diagnostic features such as clock frequency monitor, RAM parity check, and watchdog timer with window function. The R5F10BAEKSP#W5 also supports fail-safe reset behavior and brown-out detection with programmable thresholds - all documented in Renesas' RL78/F13 Hardware User's Manual (R01UH0368E).

What development tools support the R5F10BAEKSP#W5?

The R5F10BAEKSP#W5 is supported by Renesas' E2 Emulator and E2 Lite Emulator for debugging, PG-FP6 programmer for flash programming, and CS+ (formerly CubeSuite+) IDE for C and assembly development. Renesas provides device-specific startup code, peripheral driver libraries, and LIN/CAN protocol stacks compliant with AUTOSAR 4.x and Vector GENy. These tools enable full firmware validation of the R5F10BAEKSP#W5 including CAN message filtering and LIN schedule table execution.

How much user-accessible flash memory does the R5F10BAEKSP#W5 have?

The R5F10BAEKSP#W5 contains 64 KB of on-chip flash memory, of which 62 KB is user-programmable (the remaining 2 KB is reserved for boot ROM and option byte storage). This capacity supports complex application firmware with dual-bank capability for safe over-the-air updates. Flash endurance is rated at 100,000 write/erase cycles, and data retention exceeds 20 years at +85°C - verified per JEDEC JESD22-A117.