Renesas R5F213G1CNSP#W4

Overview

R5F213G1CNSP from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 4 KB program ROM, 512-byte RAM, and 1 KB × 4 data flash supporting background operation (BGO). It operates at up to 20 MHz (VCC = 2.7–5.5 V), integrates 10-bit ADC (8 channels), dual 8-bit DACs, LIN hardware module, and real-time clock (Timer RE), targeting cost-sensitive embedded control in consumer appliances.

For engineers reviewing the R5F213G1CNSP datasheet, R5F213G1CNSP pinout, R5F213G1CNSP application, or R5F213G1CNSP equivalent, key selection considerations include its LSSOP-24 package (PLSP0024JB-A), -20°C to +85°C temperature grade (N version), integrated LIN transceiver support via UART0/Timer RA, and BGO-enabled in-system reprogramming of data flash without halting execution.

Technical Context

The R5F213G1CNSP implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte, with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash blocks at 03000h–03FFFh.

Peripheral integration includes UART0/UART2 (with I²C mode), SSU, hardware LIN (using UART0 and Timer RA), 14-bit watchdog timer, DTC with 23 activation sources, and four independent timers (RA/RB/RC/RE) supporting PWM, input capture, and real-time calendar functions.

Key Specifications

Pinout & Package

Package: 24-pin LSSOP (PLSP0024JB-A), 0.65 mm pin pitch, surface-mount, JEDEC-standard footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F213G1CNSP, the R5F213G2CNSP offers double ROM capacity for complex control algorithms, while the R5F213G1CDSP maintains identical functionality with enhanced thermal robustness-neither requires PCB redesign due to identical LSSOP-24 pinout and footprint.

Availability

R5F213G1CNSP is available at Aetrix Electronics and suitable for home appliance control, audio system interfaces, and office equipment UIs requiring stable component supply and long-term production continuity.

Supply support for R5F213G1CNSP 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 enterprise applications.

The R8C/3GC Group targets cost-optimized, low-power embedded control in consumer electronics, emphasizing integrated peripherals (LIN, ADC, DAC), flash flexibility (BGO), and thermal resilience in compact packages.

FAQ

What is the maximum operating frequency of the R5F213G1CNSP and under what supply conditions?

The R5F213G1CNSP achieves a maximum operating frequency of 20 MHz when powered at VCC = 2.7–5.5 V using the XIN clock source. At lower supply voltages (1.8–5.5 V), the guaranteed maximum frequency reduces to 5 MHz per Renesas specification R01DS0036EJ0100. The high-speed on-chip oscillator supports adjustable frequencies but does not exceed 20 MHz in this variant.

Does the R5F213G1CNSP support in-application programming (IAP) of its data flash memory?

Yes, the R5F213G1CNSP supports background operation (BGO) for data flash, enabling R5F213G1CNSP to execute application code while simultaneously erasing or programming data flash blocks. This allows real-time firmware parameter updates, calibration storage, or event logging without halting CPU operation or requiring external programming hardware.

What peripheral resources does the R5F213G1CNSP provide for LIN bus communication?

The R5F213G1CNSP integrates a hardware LIN module that combines UART0 and Timer RA to implement full LIN 2.0/2.1 protocol handling. This eliminates the need for external LIN transceivers in slave-node designs. The R5F213G1CNSP supports automatic sync field detection, checksum calculation, and frame timing control-all managed in hardware without CPU intervention.

How many analog input channels does the R5F213G1CNSP's ADC support, and what is its resolution?

The R5F213G1CNSP features a 10-bit successive-approximation ADC with eight analog input channels (AN0 through AN11, with AN2–AN4 omitted in this package variant). It includes sample-and-hold circuitry and sweep mode for automatic sequential conversion across selected channels, delivering 10-bit precision for sensor signal acquisition in consumer-grade applications.

What is the purpose of the VREF pin (P4_2) on the R5F213G1CNSP, and how is it used?

The VREF pin (P4_2) on the R5F213G1CNSP serves as an external reference voltage input for both the 10-bit ADC and dual 8-bit DACs. When driven by a stable voltage source (e.g., precision bandgap or filtered supply), it defines the full-scale range for analog conversions and outputs. Using VREF instead of AVCC improves measurement accuracy and DAC linearity, especially in noisy or variable-supply environments.