Renesas R5F2154CEKFP#V0

Overview

R5F2154CEKFP#V0 from Renesas Electronics is a 16-bit R8C/27 Group single-chip microcontroller with 24 KB flash program memory, 1.5 KB RAM, and dual 1 KB data flash blocks. It operates at up to 20 MHz (50 ns min instruction time), supports 12-channel 10-bit ADC, UART0/UART1, I²C, LIN, and real-time clock functionality via Timer RE. It targets automotive body control modules requiring -40°C to +125°C operation.

For engineers reviewing the R5F2154CEKFP#V0 datasheet, R5F2154CEKFP#V0 pinout, R5F2154CEKFP#V0 application, or R5F2154CEKFP#V0 equivalent, key selection criteria include its K-version extended temperature range, on-chip data flash endurance (10,000 erase/write cycles), LIN hardware support, and 32-pin LQFP package with 25 general-purpose I/O pins.

Technical Context

The R5F2154CEKFP#V0 implements the R8C CPU core with 89 fundamental instructions and a 1 Mbyte address space. Its memory subsystem includes 24 KB of flash program ROM and two independent 1 KB data flash blocks-enabling nonvolatile parameter storage without erasing application code.

Peripheral integration centers on mixed-signal control: a 10-bit A/D converter with 12 analog inputs, three 8-bit timers (RA/RB) plus one 16-bit timer (RC) with input capture/output compare, and dedicated LIN physical layer support using Timer RA and UART0. Clock generation includes XIN/XOUT, XCIN/XCOUT (32 kHz), and high-speed/low-speed on-chip oscillators with frequency adjustment.

Key Specifications

Pinout & Package

32-pin molded-plastic LQFP (PLQP0032GB-A) package with exposed thermal pad; 7 mm × 7 mm body, 0.8 mm lead pitch, JEDEC standard footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with R5F2154CEKFP#V0, R5F2156CEKFP#V0 offers greater program memory for feature-rich firmware, while R5F2154CDKFP#V0 provides identical functionality at lower thermal qualification-enabling trade-offs between environmental robustness and BOM cost without layout changes.

Availability

R5F2154CEKFP#V0 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart appliance control, and medical diagnostic instrument front-ends requiring stable component supply and long-term lifecycle support.

Supply support for R5F2154CEKFP#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/27 Group, including R5F2154CEKFP#V0, was designed for cost-sensitive, thermally demanding embedded control applications requiring integrated analog peripherals, LIN connectivity, and reliable flash memory in compact 32-pin packages.

FAQ

What is the maximum operating frequency and corresponding supply voltage range for R5F2154CEKFP#V0?

R5F2154CEKFP#V0 achieves a minimum instruction execution time of 50 ns at 20 MHz, requiring VCC = 3.0 to 5.5 V. Its K-version rating permits operation across the full -40°C to +125°C ambient range under these conditions. At lower frequencies (e.g., 10 MHz), it supports down to 2.7 V, and at 5 MHz, down to 2.2 V-enabling flexible power design in battery-backed systems.

Does R5F2154CEKFP#V0 support hardware LIN communication, and how is it implemented?

Yes, R5F2154CEKFP#V0 integrates a hardware LIN module that uses UART0 and Timer RA to generate and decode LIN 2.0/2.1 frames. This offloads bit-level timing, checksum calculation, and synchronization from firmware, ensuring compliance with LIN specification timing tolerances and reducing CPU utilization during network polling.

How many analog input channels does R5F2154CEKFP#V0 provide, and what is their resolution?

R5F2154CEKFP#V0 includes a single 10-bit successive-approximation A/D converter with 12 analog input channels (AN0–AN11). These channels are distributed across P0, P1, and P3 ports and can be selected via software-controlled multiplexer-supporting simultaneous sampling only through sequential conversion with minimal inter-channel delay.

What is the data flash endurance specification for R5F2154CEKFP#V0, and how is it structured?

R5F2154CEKFP#V0 contains two independent 1 KB data flash blocks, each rated for 10,000 erase/write cycles. This structure allows wear leveling across blocks and enables safe storage of calibration data, device configuration, or usage logs without affecting program flash integrity or requiring full-chip erase operations.

Is R5F2154CEKFP#V0 pin-compatible with other R8C/27 Group MCUs, and which packages are shared?

Yes, R5F2154CEKFP#V0 uses the PLQP0032GB-A 32-pin LQFP package and shares identical pin assignments and electrical characteristics with all R8C/27 Group variants-including R5F2156CEKFP#V0 and R5F2154CDKFP#V0. This enables drop-in replacement within the same package family for memory or temperature grade upgrades without PCB redesign.