Renesas R5F2135ACNFP#30

Overview

R5F2135ACNFP#30 from Renesas Electronics is a 16-bit R8C CPU core MCU with 96 KB flash program ROM, 8 KB data flash (4 × 1 KB blocks), and 8 KB RAM, operating at up to 20 MHz (VCC = 2.7–5.5 V). It integrates UART0/1/2, I²C, LIN hardware, 10-bit × 12-channel ADC, dual 8-bit DACs, and six timer modules (RA–RE + dual RD) for motor control and real-time signal processing in consumer appliance control systems.

For engineers reviewing the R5F2135ACNFP#30 datasheet, R5F2135ACNFP#30 pinout, R5F2135ACNFP#30 application, or R5F2135ACNFP#30 equivalent, key selection criteria include its 52-pin LQFP package, -20°C to +85°C N-version temperature grade, background operation (BGO) for data flash, integrated LIN transceiver support via Timer RA + UART0, and low-power stop mode (2.0 µA).

Technical Context

The R5F2135ACNFP#30 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte (00000h–FFFFFh), with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash at 03000h–03FFFh.

It supports four clock sources: XIN (up to 20 MHz), XCIN (32 kHz), high-speed on-chip oscillator (adjustable), and low-speed on-chip oscillator - enabling flexible power/performance trade-offs across wait (3.5 µA) and stop (2.0 µA) modes while maintaining real-time clock (Timer RE) functionality.

Key Specifications

Pinout & Package

Package: 52-pin LQFP (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pitch, N-version (-20°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2135ACNFP#30, R5F2135ACDFP#30 adds industrial temperature tolerance without changing pinout or code compatibility, while R5F21358CNFP#30 reduces memory resources but maintains identical peripheral timing, interrupt structure, and low-power behavior - enabling scalable family-based design.

Availability

R5F2135ACNFP#30 is available at Aetrix Electronics and suitable for home appliance motor control, audio system front-end, office equipment power management, and consumer IoT sensor hub applications requiring stable component supply and long-term production continuity.

Supply support for R5F2135ACNFP#30 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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and consumer markets.

The R8C/35C Group, including R5F2135ACNFP#30, was designed for cost-sensitive, low-power embedded control in consumer electronics - emphasizing integration of motor control timers, LIN, ADC, and data flash with minimal external components.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F2135ACNFP#30?

The R5F2135ACNFP#30 operates at up to 20 MHz when supplied with 2.7–5.5 V, and supports reduced-frequency operation down to 5 MHz at 1.8–5.5 V. This dual-voltage/frequency capability enables flexible power optimization across battery-powered and line-powered applications while maintaining full peripheral functionality.

Does the R5F2135ACNFP#30 support hardware LIN communication?

Yes, the R5F2135ACNFP#30 includes a dedicated hardware LIN module that combines Timer RA and UART0 to implement ISO 9141-2 and LIN 2.x protocols without CPU intervention. This allows deterministic frame timing, automatic checksum generation, and slave node response handling - critical for automotive body electronics and appliance sub-system communication.

How much data flash memory does the R5F2135ACNFP#30 include, and what is its endurance?

The R5F2135ACNFP#30 includes 4 KB of data flash memory organized as four 1 KB blocks, rated for 10,000 write/erase cycles. Its Background Operation (BGO) feature permits concurrent program execution and flash reprogramming - essential for field-upgradable firmware and runtime parameter storage in R5F2135ACNFP#30-based systems.

What are the low-power modes supported by the R5F2135ACNFP#30, and their typical current consumption?

The R5F2135ACNFP#30 supports standard active, wait (3.5 µA @ 3.0 V, 32 kHz), and stop (2.0 µA @ 3.0 V) modes. In stop mode, the 32 kHz XCIN oscillator remains active to drive Timer RE (RTC), enabling precise wake-up intervals while minimizing energy use - ideal for battery-operated R5F2135ACNFP#30 applications requiring time-stamped event logging.

Can the R5F2135ACNFP#30 generate three-phase motor drive waveforms?

Yes, the R5F2135ACNFP#30's Timer RD module supports reset-synchronous PWM and complementary PWM modes, directly generating three-phase waveforms on six output pins (e.g., P2_0–P2_5). These modes include built-in dead-time insertion and synchronization to a common carrier, enabling efficient BLDC and PMSM motor control without external gate drivers or complex software timing loops in R5F2135ACNFP#30 implementations.