Renesas R5F21216JFP

Overview

R5F21216JFP from Renesas Electronics is a 16-bit R8C/21 Group microcontroller featuring an R8C CPU core, 32 KB program flash ROM, 2 KB RAM, and dual 1 KB data flash blocks for nonvolatile parameter storage. It operates at up to 20 MHz (V_CC = 3.0–5.5 V), integrates a 10-bit 12-channel ADC, hardware LIN module (using Timer RA and UART0), and supports -40°C to +85°C ambient operation in automotive and industrial control systems.

For engineers reviewing the R5F21216JFP datasheet, R5F21216JFP pinout, R5F21216JFP application, or R5F21216JFP equivalent, key selection considerations include its dual data flash architecture for field-updatable calibration data, LIN bus compliance in automotive body electronics, 48-pin LQFP package with mixed-signal I/O capability, and compatibility with Renesas' E8 emulator debugging environment.

Technical Context

The R5F21216JFP implements the R8C CPU core with 89 fundamental instructions and executes at 50 ns minimum instruction time (20 MHz, 3.0–5.5 V). Its memory map includes 1 Mbyte address space, fixed interrupt vector table at 0FFDCh–0FFFFh, and dedicated data flash blocks at 02400h–02BFFh (1 KB × 2).

Peripheral integration includes two UART channels (UART0 with LIN support, UART1), three timer groups (Timer RA/RB, Timer RD ×2 16-bit channels with input capture/output compare, Timer RE), I²C bus interface, clock synchronous serial I/O with chip select, and on-chip oscillators (high-speed adjustable, low-speed) with XIN/XOUT crystal support and oscillation stop detection.

Key Specifications

Pinout & Package

Package: 48-pin plastic LQFP (PLQP0048KB-A), 7 mm × 7 mm body, 0.5 mm pin pitch, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F21216JFP, R5F21217JFP offers expanded program memory without altering data flash capability or peripheral functionality, while R5F21206JFP removes data flash entirely-requiring external nonvolatile storage for parameter retention and increasing BOM count and layout complexity.

Availability

R5F21216JFP is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, home appliance motor control, and medical diagnostic subsystems requiring stable component supply, long-term lifecycle assurance, and automotive-grade qualification.

Supply support for R5F21216JFP 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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power, and SoC solutions.

The R8C/21 Group, including R5F21216JFP, was designed for cost-sensitive, real-time embedded applications in automotive and industrial markets where integrated LIN, analog interfaces, and reliable flash memory are essential.

FAQ

What is the maximum operating frequency of the R5F21216JFP and what supply voltage range supports it?

The R5F21216JFP achieves a maximum operating frequency of 20 MHz when supplied with V_CC = 3.0 V to 5.5 V. At lower frequencies (e.g., 10 MHz), it supports extended voltage range down to 2.7 V. This specification is validated per Renesas Hardware Manual REJ03B0120-0200, Section 1.2, and applies specifically to the J-version part number R5F21216JFP.

Does the R5F21216JFP include hardware support for LIN communication, and how is it implemented?

Yes, the R5F21216JFP integrates a hardware LIN module compliant with LIN 2.0/2.1/2.2 standards. It combines Timer RA and UART0 to generate precise baud rates, handle header detection, and manage automatic synchronization-eliminating software bit-banging overhead. This implementation is documented in Section 1.2 and Figure 1.1 of the R8C/20–21 Group Hardware Manual.

How much data flash memory does the R5F21216JFP have, and what is its endurance rating?

The R5F21216JFP contains two independent 1 KB data flash blocks (total 2 KB), each rated for 10,000 write/erase cycles. This is distinct from its 32 KB program flash (1,000-cycle endurance) and enables robust field updates of calibration tables or configuration parameters without external memory. Details appear in Table 1.2 and Section 3.2 of the official documentation.

What package type and pin count does the R5F21216JFP use, and is it RoHS compliant?

The R5F21216JFP uses a 48-pin plastic LQFP package designated PLQP0048KB-A (7 mm × 7 mm, 0.5 mm pitch). It is lead-free and RoHS compliant per Renesas' environmental policy. Pin assignments and mechanical dimensions are specified in Figure 1.4 and Table 1.6 of the R8C/20–21 Group Hardware Manual (Rev. 2.00, Aug 2008).

Can the R5F21216JFP operate in extended temperature environments such as under-hood automotive applications?

The R5F21216JFP is rated for -40°C to +85°C ambient operation (J version), making it suitable for cabin and some under-dash automotive applications. For under-hood use requiring -40°C to +125°C, the K-version part R5F21216KFP is specified. This distinction is explicitly defined in Table 1.4 and the "Classification" legend on Page 6 of the product documentation.