Renesas R5F10ABEKNA#U5

Overview

R5F10ABEKNA#U5 from Renesas Electronics is a 16-bit RL78/F13 microcontroller with LIN bus interface, 32-pin LSSOP package, 16 KB flash memory, 2.5 KB RAM, and operating voltage range of 1.6–5.5 V. It integrates a 32 MHz system clock (via on-chip oscillator), 10-bit ADC (8 channels), 8-bit D/A converter, and hardware LIN transceiver compliant with LIN 2.2A/SAE J2602. It targets automotive body electronics such as door modules and seat control units.

For engineers reviewing the R5F10ABEKNA#U5 datasheet, R5F10ABEKNA#U5 pinout, R5F10ABEKNA#U5 application, or R5F10ABEKNA#U5 equivalent, key selection criteria include LIN protocol support, low-voltage operation down to 1.6 V, integrated analog peripherals (ADC/DAC), compact 32-pin LSSOP footprint, and AEC-Q100 Grade 2 qualification for automotive use.

Technical Context

The R5F10ABEKNA#U5 implements the RL78 CPU core with 16-bit CISC architecture, supporting 1.6–5.5 V single-supply operation and featuring a built-in LIN physical layer transceiver with slew-rate control and bus fault detection. Its on-chip oscillator delivers stable 32 MHz operation without external crystal, while the 10-bit ADC supports scan mode with up to 1.0 µs conversion time per channel.

It includes dedicated LIN communication hardware-LINCTL register set, LIN status flags, and automatic header detection-enabling full LIN master/slave operation without software bit-banging. The device also embeds a 16-bit watchdog timer, low-voltage detection (LVD) circuit with 4 selectable thresholds, and 16-bit real-time clock (RTC) with calendar function.

Key Specifications

Pinout & Package

Package: 32-pin LSSOP (Low-Profile Small Outline Package), 7.6 mm × 10.2 mm body, 0.65 mm lead pitch, exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SPC560B50L5 and TLV320AIC3104IRHBT, the R5F10ABEKNA#U5 delivers optimal balance of LIN integration, ultra-low voltage operation, and compact footprint for entry-level automotive body electronics-without over-engineering or incompatible architecture.

Availability

R5F10ABEKNA#U5 is available at Aetrix Electronics and suitable for automotive door modules, seat position controllers, roof console interfaces, and steering column switches requiring stable component supply across extended production lifecycles.

Supply support for R5F10ABEKNA#U5 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 family was designed specifically for cost-sensitive, low-power automotive body electronics requiring integrated LIN communication, robust analog peripherals, and AEC-Q100 qualification-exemplified by the R5F10ABEKNA#U5.

FAQ

What is the maximum operating frequency of the R5F10ABEKNA#U5?

The R5F10ABEKNA#U5 operates at a maximum system clock frequency of 32 MHz, achieved using its on-chip high-speed oscillator without requiring an external crystal. This frequency is fully supported across the entire 1.6–5.5 V supply range and ambient temperature range of −40°C to +105°C, making it suitable for under-hood automotive applications where thermal stability is critical. The R5F10ABEKNA#U5 maintains timing compliance even during voltage transients typical in automotive battery systems.

Does the R5F10ABEKNA#U5 support LIN 2.2A and SAE J2602 standards?

Yes, the R5F10ABEKNA#U5 includes a fully integrated LIN transceiver compliant with both LIN 2.2A and SAE J2602 specifications. Its hardware LIN controller handles frame synchronization, checksum calculation (classic/enhanced), and automatic header detection, enabling seamless master or slave operation. The R5F10ABEKNA#U5's LIN PHY features programmable slew rate and bus fault detection, ensuring robust communication in electrically noisy automotive environments.

What is the flash endurance and data retention specification for the R5F10ABEKNA#U5?

The R5F10ABEKNA#U5 provides 16 KB of on-chip flash memory rated for 100,000 write/erase cycles and 10 years of data retention at +85°C. This specification is validated per Renesas' reliability testing standards and applies to all flash sectors, including those used for firmware updates via LIN-based bootloader implementations. The R5F10ABEKNA#U5 supports sector erase and byte-programming operations essential for field-upgradable automotive ECUs.

Is the R5F10ABEKNA#U5 qualified for automotive applications?

Yes, the R5F10ABEKNA#U5 is qualified to AEC-Q100 Grade 2 (−40°C to +105°C), meeting the stress test requirements for automotive electronic components. It is manufactured in Renesas' ISO/TS 16949-certified facilities and conforms to automotive-specific reliability standards including HTOL, ESD, and EMC performance limits. The R5F10ABEKNA#U5 is intended for use in body electronics applications such as door modules and seat controls-not safety-critical systems like airbag or brake control.

Can the R5F10ABEKNA#U5 operate from a 3.3 V supply?

Yes, the R5F10ABEKNA#U5 supports 3.3 V nominal operation within its specified 1.6–5.5 V supply range. At 3.3 V, it delivers full 32 MHz performance, complete peripheral functionality (ADC, DAC, LIN, RTC), and guaranteed timing margins across temperature. This makes the R5F10ABEKNA#U5 compatible with standard 3.3 V automotive domain controllers and simplifies power design by eliminating level shifters when interfacing with other 3.3 V components.