Renesas R5F2135CCDFP#V0

Overview

R5F2135CCDFP#V0 from Renesas Electronics is a 16-bit R8C CPU core MCU with 128 KB flash program ROM, 10 KB RAM, and 4 KB data flash (1 KB × 4 blocks) supporting background operation (BGO). It operates at up to 20 MHz (V_CC = 2.7–5.5 V), features integrated 10-bit A/D (12 ch), dual 8-bit D/A, LIN hardware module, and real-time clock (Timer RE), targeting embedded control in consumer audio and office equipment.

For engineers reviewing the R5F2135CCDFP#V0 datasheet, R5F2135CCDFP#V0 pinout, R5F2135CCDFP#V0 application, or R5F2135CCDFP#V0 equivalent, key selection considerations include its -40°C to +85°C industrial temperature grade, 52-pin LQFP package (PLQP0052JA-A), on-chip debug capability, and support for UART/I²C/SSU serial interfaces with LIN protocol acceleration.

Technical Context

The R5F2135CCDFP#V0 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.

Peripheral integration includes Timer RD (16-bit × 2, 6-pin PWM, complementary/triangular/sawtooth modulation), UART0/1/2 (with I²C mode on UART2), SSU, hardware LIN (using Timer RA + UART0), and voltage detection circuitry with selectable levels for power-on reset and brown-out monitoring.

Key Specifications

Pinout & Package

52-pin LQFP package (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm lead pitch, exposed pad not specified. Pin functions include multiplexed I/O with programmable pull-up resistors, dedicated analog inputs (AN0–AN11), D/A outputs (DA0, DA1), and peripheral-specific signals (e.g., TREO, TRAO, TXD/RXD, SCL/SDA).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2135CCDFP#V0, the R5F2135CCNFP#V0 offers identical functionality at lower temperature grade, while R5F21358CDFP#V0 reduces flash capacity by 50% but retains all peripherals-making both viable alternatives depending on thermal and memory requirements.

Availability

R5F2135CCDFP#V0 is available at Aetrix Electronics and suitable for audio equipment control, office equipment motor control, consumer appliance user interface, and industrial sensor node applications requiring stable component supply and long-term industrial-grade availability.

Supply support for R5F2135CCDFP#V0 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 R8C/35C Group, including R5F2135CCDFP#V0, was designed for cost-sensitive, low-power embedded control in consumer electronics-emphasizing integration of A/D, D/A, LIN, and RTC to minimize external components.

FAQ

What is the maximum operating frequency of the R5F2135CCDFP#V0 and under what voltage conditions?

The R5F2135CCDFP#V0 achieves a maximum operating frequency of 20 MHz when powered at V_CC = 2.7–5.5 V. At lower supply voltages (1.8–5.5 V), the guaranteed maximum frequency drops to 5 MHz. This dual-frequency specification allows flexible power/performance trade-offs in battery-powered or wide-input-voltage designs, with timing validated across the full industrial temperature range (-40°C to +85°C).

Does the R5F2135CCDFP#V0 support in-system programming of its data flash memory?

Yes, the R5F2135CCDFP#V0 supports in-system programming of its 4 KB data flash (1 KB × 4 blocks) using the background operation (BGO) function. This allows firmware to reprogram data flash sectors-including calibration tables or configuration parameters-while simultaneously executing application code from program ROM, ensuring uninterrupted real-time operation during field updates.

How many analog-to-digital converter channels does the R5F2135CCDFP#V0 provide, and what is their resolution?

The R5F2135CCDFP#V0 integrates a 10-bit successive-approximation A/D converter with 12 input channels (AN0–AN11). Channels AN0–AN7 map to Port P0 pins, while AN8–AN11 connect to Port P1. The converter includes sample-and-hold circuitry and sweep mode for automatic sequential conversion, enabling precise sensor monitoring in applications like motor current sensing or environmental measurement.

What peripheral modules are used to implement the hardware LIN interface on the R5F2135CCDFP#V0?

The hardware LIN interface on the R5F2135CCDFP#V0 is implemented using Timer RA for baud rate generation and signal timing, combined with UART0 for data framing and error checking per LIN 2.1/SAE J2602 specifications. This co-processing architecture offloads LIN protocol handling from the CPU, reducing software overhead and ensuring deterministic timing for automotive body electronics or appliance sub-networks.

Is the R5F2135CCDFP#V0 pin-compatible with other members of the R8C/35C Group, such as the R5F21358CDFP#V0?

Yes, the R5F2135CCDFP#V0 is pin-compatible with all 52-pin LQFP variants in the R8C/35C Group, including R5F21358CDFP#V0 and R5F2135ACDFP#V0. They share identical PLQP0052JA-A packaging, pin assignment, and I/O functionality-differing only in flash/RAM capacity and temperature grade. This enables scalable design reuse across product tiers without PCB redesign.