R5F21216JFP - 16-Bit 20MHz 32KB MCU | Renesas
MPN: R5F21216JFP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.3514 | $6.35 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
R5F21216JFP Overview
The R5C family is a group of Renesas microcontrollers built around the R8C CPU core, a CISC-style processor architecture intended for efficient control-oriented embedded applications. The R5F21216JFP belongs to the R8C/2x/21 group and is packaged in a 48-pin plastic molded LQFP, making it suitable for designs requiring a conventional surface-mount microcontroller footprint.
Key verified features include a 20MHz operating speed, 32KB of flash memory organized as 32K x 8, 2KB of RAM, 3.3V and 5V operation, a 10-bit ADC, and an operating temperature range from -40°C to +85°C. The R8C CPU core uses silicon-gate CMOS technology and supports efficient instruction execution for embedded control, measurement, and communication-oriented products.
The device is suitable for industrial control equipment, sensor interfaces, instrument panels, motor-control subsystems, appliance controllers, and compact embedded products. Its 3.3V and 5V compatibility supports both legacy 5V peripherals and modern low-voltage digital systems. The 48-LQFP package provides a higher pin count than small 32-pin MCUs, allowing more peripheral connectivity and easier access to analog, communication, and general-purpose I/O functions.
When designing a replacement or new board, verify the complete pinout, peripheral configuration, clock requirements, memory organization, and electrical limits against the manufacturer datasheet. The part number and package suffix matter: R5F21216JFP#U1 and R5F21216JFP#U0 may have different ordering or qualification information. Verify current lifecycle and distributor availability before committing to production.
Drop-in alternatives for R5F21216JFP — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
R5F21216JFP#U1
✅ Drop-In📋 Reference alternative (not in catalog)
R5F21216JFP#U0
✅ Drop-In📋 Reference alternative (not in catalog)
R5F21218JFP
✅ Drop-In📋 Reference alternative (not in catalog)
R5F21226DFP#U0
✅ Drop-In📋 Reference alternative (not in catalog)
R5F21216JFP-U1
✅ Drop-In📋 Reference alternative (not in catalog)
R5F21216JFP Maximum Ratings & Electrical Characteristics
| Product Type | 16-bit microcontroller |
| Series | R8C/2x/21 |
| CPU Core | R8C CPU core |
| Instruction Architecture | CISC-style instructions |
| Maximum Operating Frequency | 20 MHz |
| Flash Memory | 32 KB |
| Flash Organization | 32K x 8 |
| RAM | 2 KB |
| Operating Voltage | 3.3 V to 5 V |
| ADC Resolution | 10-bit |
| Operating Temperature Range | -40°C to +85°C |
| Package | 48-pin plastic molded LQFP |
| Package Dimensions | 7 x 7 mm |
| Process Technology | High-performance silicon gate CMOS |
| Mounting Type | Surface mount |
| Pin Count | 48 pins |
| Lead-Free Status | Pb-free marking shown for R5F21216JFP#U1 |
R5F21216JFP 7 x 7 mm Pin Configuration Guide
Pin configuration for R5F21216JFP (7 x 7 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for R5F21216JFP.
Refer to the datasheet for full pin configuration.
Typical Applications
R5F21216JFP is suitable for 6 applications: Industrial Sensor Interface, Motor Control Subsystem, Appliance Controller, Instrumentation and Measurement, Communication Gateway, Embedded Control Board.
Industrial Sensor Interface
The R5F21216JFP fits industrial sensor interfaces that require a compact 48-pin controller, a 10-bit ADC, and operation across 3.3V or 5V peripheral rails. Its R8C CPU core executes control and measurement logic at up to 20MHz, while 32KB flash provides room for acquisition routines, calibration, filtering, and communication state machines. The 48-pin LQFP is useful when the design needs more I/O than a small 32-pin MCU. Engineers should verify the ADC input range, reference voltage, sampling timing, and channel assignment in the exact datasheet before placing analog and digital circuits.
Recommended
Motor Control Subsystem
R5F21216JFP can serve as the supervisory controller in a small motor-control subsystem where the MCU handles command processing, sensor monitoring, timing, and protection sequencing. The 20MHz R8C core provides more control headroom than a simple fixed-function timer, while the 48-pin LQFP offers a larger pin count for encoder, switch, fault, and actuator signals. The device does not replace a dedicated high-power gate driver; use it with an appropriate power stage and verify timer, PWM, and interrupt resources in the manufacturer documentation.
Recommended
Appliance Controller
The R5F21216JFP is suitable for appliance and equipment controllers where a 3.3V/5V-compatible MCU, 32KB flash, 2KB RAM, and a 48-pin LQFP package provide a practical control platform. It can manage user inputs, relays, displays, sensors, and sequencing without requiring a high-end processor. The 10-bit ADC supports basic analog monitoring, while the R8C core handles embedded tasks. Validate relay-driver isolation, inductive-load suppression, reset behavior, brownout requirements, and firmware update provisions before production release.
Recommended
Instrumentation and Measurement
For compact instrumentation, R5F21216JFP combines a 20MHz embedded processor, 10-bit ADC, and 48-pin LQFP in a package suited to measurement front ends and control panels. Firmware can perform sampling, filtering, calibration, status reporting, and local user-interface handling within the verified 32KB flash and 2KB RAM budget. The 3.3V and 5V operating support helps bridge multiple peripheral generations. Engineers must confirm analog input limits, ADC acquisition requirements, grounding, reference stability, and whether the chosen accuracy is sufficient for the final measurement specification.
Recommended
Communication Gateway
R5F21216JFP can be used in a compact communication gateway or protocol bridge when the design needs deterministic embedded control alongside serial or digital I/O. The 48-pin LQFP provides more routing flexibility than a low-pin-count MCU, while 32KB flash and 2KB RAM are appropriate for protocol state machines, buffering, status reporting, and local configuration. Actual gateway performance depends on the selected UART, serial interface, protocol, baud rate, and interrupt load. Validate pin multiplexing, electrical levels, timing, and firmware driver support before selecting it as the gateway processor.
Recommended
Embedded Control Board
The R5F21216JFP works well in a general embedded control board that combines digital inputs, analog monitoring, timing, and local status indication. Its 16-bit R8C architecture and up-to-20MHz operation suit event-driven control tasks, while the 3.3V/5V compatibility reduces constraints when existing boards use mixed logic families. The 48-pin LQFP footprint gives access to a broad peripheral pin set, but the engineer must account for supply decoupling, clock stability, reset design, unused pins, and programming access. Confirm the exact pin assignments and package drawing before layout release.
Recommended
Recommended Products Summary
Engineering reference data for R5F21216JFP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | R5F21216JFP#U1 | R5F21216JFP#U0 | R5F21218JFP | R5F21226DFP#U0 |
|---|---|---|---|---|---|
| Package | 48-pin LQFP | 48-pin LQFP | 48-pin LQFP | 48-pin LQFP | 48-pin LQFP |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| CPU Core | R8C CPU core, 16-bit | R8C CPU core, 16-bit | R8C family, 16-bit | R8C family, 16-bit | R8C family, 16-bit |
Key Differentiators
- Verified R8C/2x/21 positioning with 20MHz operation (vs R5F21226DFP#U0)
- Verified 3.3V and 5V operating class (vs R5F21226DFP#U0)
- 48-pin LQFP footprint with 2KB RAM (vs R5F21218JFP)
- 10-bit ADC included in the verified product description (vs R5F21226DFP#U0)
Design Notes
Design the supply rails and decoupling around the 3.3V/5V operating class identified in the verified listings. Place the MCU supply capacitor close to the package power pins and provide adequate local bulk capacitance for switching peripherals, ADC reference stability, and load transients. Confirm absolute maximum ratings, internal regulator behavior, and power sequencing in the exact datasheet before applying the part to a board with externally powered peripherals.
Use the manufacturer package drawing and land pattern for the 48-pin LQFP rather than a generic 48-pin footprint. Verify pin 1 orientation, pin numbering, lead pitch, solderable land length, and any exposed-pad requirements. The verified search data consistently identifies a 7 x 7 mm 48-LQFP package, but the exact mechanical drawing and terminal dimensions must be taken from the official datasheet.
Do not treat the R5F21216JFP, R5F21216JFP#U1, and R5F21216JFP#U0 labels as interchangeable without checking the order code and qualification information. The verified data identifies U1 as Pb-free and distinguishes ordering variants, while the cross-reference search does not establish all suffix-level electrical differences. Confirm lifecycle, temperature grade, qualification, and exact datasheet revision before production release.
For ADC and communication-connected designs, route sensitive analog and digital signals away from noisy switching nodes and keep the analog ground/reference path compact. The verified 10-bit ADC feature is suitable for general measurement, but accuracy depends on input range, sampling timing, reference stability, source impedance, and filtering. Confirm the electrical characteristics and recommended application circuit in the manufacturer datasheet.
Compliance Information
The verified Mouser listing identifies R5F21216JFP#U1 as Pb-free. RoHS, REACH, halogen-free, conflict-minerals, and automotive qualification status were not supplied and must be confirmed from the current Renesas product documentation.
