My Inquiry
My Account
Renesas R5F21227DFP#U0
- Part No.:
- R5F21227DFP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21227DFP#U0.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,793
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F21227DFP from Renesas Electronics is a 16-bit R8C/22 Group microcontroller built on silicon gate CMOS technology, featuring the R8C CPU core, 48 KB flash program memory, 2.5 KB RAM, and integrated CAN 2.0B interface - designed for automotive and factory automation networking applications requiring real-time control and robust communication.
For engineers reviewing the R5F21227DFP datasheet, R5F21227DFP pinout, R5F21227DFP application, or R5F21227DFP equivalent, this MCU delivers deterministic 50 ns instruction execution at 20 MHz, on-chip oscillators with frequency adjustment, 12-channel 10-bit ADC, LIN hardware support, and 48-pin LQFP packaging - all validated for operation from −40°C to +85°C.
Technical Context
The R5F21227DFP implements the R8C CPU core with 89 fundamental instructions, 1 Mbyte address space, and dual register banks enabling efficient context switching. It integrates two independent clock generation circuits: an XIN-based crystal/resonator oscillator and a high-speed on-chip oscillator with user-adjustable frequency.
Peripheral integration includes a single-channel CAN 2.0B module (16 message slots), hardware LIN using Timer RA and UART0, UART0/UART1 with clock-synchronous serial I/O capability, dual I²C interfaces, and Timer RD with input capture/output compare on two 16-bit channels - all mapped to dedicated pins in the 48-pin PLQP0048KB-A package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit CISC core with 89 instructions and 20-bit PC for 1 Mbyte addressing |
| Flash Memory | 48 KB program ROM; supports 1,000 erase/write cycles; VCC = 2.7–5.5 V programming |
| RAM | 2.5 KB on-chip SRAM allocated from 00400h–00DFFh for data, stack, and subroutine use |
| Operating Voltage | 3.0–5.5 V at 20 MHz (D/J version); enables direct interface with 3.3 V and 5 V logic systems |
| Temperature Range | −40°C to +85°C (D version); qualified for automotive and industrial ambient environments |
| Instruction Speed | 50 ns minimum execution time at 20 MHz; ensures deterministic real-time response in control loops |
| ADC | 10-bit successive-approximation A/D converter with 12 analog inputs (AN0–AN11) |
| CAN Interface | One CAN 2.0B-compliant controller with 16 message buffers; supports standard & extended frames |
Pinout & Package
Package: 48-pin plastic LQFP (PLQP0048KB-A), 7 mm × 7 mm body, 0.5 mm pitch - RoHS-compliant and suitable for automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog Input / I/O Port | 12-channel ADC inputs (AN0–AN7) plus general-purpose CMOS I/O with programmable pull-up |
| P1_0–P1_7 | General I/O / Peripheral Multiplex | Supports KI0–KI3 key interrupts, TRAIO/INT1 timer I/O, CLK0, TXD0/RXD0 serial I/O |
| P2_0–P2_7 | Timer RD I/O | Eight dedicated pins (TRDIOA0–TRDIOD1) for input capture, output compare, and external clock (TRDCLK) |
| P3_0, P3_1, P3_3–P3_7 | I/O / Serial Interface | SSO, SCL, SDA, SSI, SCS, SSCK for I²C and synchronous serial; TRAO/TRBO for Timer RA/RB outputs |
| P4_2, P4_3, P4_4, P4_5, P4_6, P4_7 | Reference / Control / Clock | VREF for ADC reference; MODE boot configuration; RESET active-low reset; XIN/XOUT for crystal oscillator |
| P6_0–P6_7 | CAN / UART / Interrupt | CTX0/CRX0 for CAN transceiver interface; TXD1/RXD1 for UART1; INT2/INT3 external interrupt inputs |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CAN 2.0B Controller | Single-channel, 16-message-slot buffer with automatic ID filtering and error handling - eliminates need for external CAN controller in vehicle networks |
| Hardware LIN Module | Dedicated LIN 2.0/2.1 support via Timer RA and UART0; enables slave-node implementation without software bit-banging overhead |
| On-Chip Oscillators | High-speed and low-speed on-chip oscillators; high-speed variant includes frequency adjustment - reduces BOM cost and board space vs. external crystals |
| 12-Channel 10-bit ADC | Simultaneous sampling not supported, but configurable trigger sources (timer, software, external) enable precise sensor acquisition timing |
| Interrupt Architecture | 24 total interrupt sources (14 internal, 6 external, 4 software) with 7 priority levels - supports nested, prioritized real-time event handling |
| Memory Protection | Fixed interrupt vector table at 0FFDCh–0FFFFh; emulator debug region (20000h–23FFFh) explicitly reserved and non-user-accessible |
Applications
| Automotive Body Control Module | Industrial PLC I/O Subsystem |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, lighting, and mirror actuators in passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing CAN-based command arbitration, LIN-peripheral polling, and analog sensor monitoring (e.g., temperature, position). Use Value: Integrated CAN 2.0B and hardware LIN reduce external component count; 48 KB flash accommodates multi-function firmware with diagnostics and OTA update capability. |
Use Scenario: Distributed remote I/O node collecting analog sensor data (pressure, flow) and driving digital outputs in factory automation lines. IC Role / Device Role / Timing Role: Edge controller performing local signal conditioning, 10-bit ADC sampling, and CAN bus reporting to main PLC. Use Value: 12-channel ADC with flexible trigger options enables synchronized multi-sensor acquisition; −40°C to +85°C rating ensures reliability in unconditioned cabinet environments. |
| Motor Drive Feedback Interface | Smart HVAC Actuator Controller |
Use Scenario: Closed-loop motor control subsystem monitoring encoder signals, current sense, and thermal sensors in BLDC drives. IC Role / Device Role / Timing Role: Real-time peripheral manager interfacing with quadrature encoders (via Timer RD), shunt amplifiers (via ADC), and CAN for status reporting. Use Value: Timer RD's input capture on four independent channels allows precise edge-timing measurement; 50 ns instruction cycle supports tight PWM loop timing. |
Use Scenario: Embedded actuator controlling damper position, fan speed, and valve opening in commercial HVAC terminal units. IC Role / Device Role / Timing Role: Standalone controller executing PID algorithms, reading thermistors/humidity sensors, and driving stepper motors via GPIO/PWM. Use Value: On-chip high-speed oscillator with frequency tuning simplifies timing-critical motor commutation; 2.5 KB RAM provides sufficient workspace for floating-point control math. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21227JFP | Identical flash/RAM specs and peripherals; rated for same −40°C to +85°C range but uses J-version qualification documentation | No functional difference; J version aligns with legacy NEC documentation lineage and may be preferred in long-life automotive programs | Select R5F21227JFP when documentation traceability to pre-merger NEC specifications is required for certification audits |
| R5F21237DFP | Adds 2 × 1 KB data flash blocks (10,000-cycle endurance); otherwise identical CPU, peripherals, and package | Enables field-upgradable parameter storage (e.g., calibration tables, device IDs) without external EEPROM | Choose R5F21237DFP if runtime reprogramming of non-volatile configuration data is required - no PCB change needed |
Compared with R5F21227DFP, R5F21227JFP offers identical functionality under alternate documentation lineage, while R5F21237DFP adds data flash for configuration storage - both retain the same 48-pin LQFP footprint and CAN/LIN/ADC feature set.
Availability
R5F21227DFP is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and motor drive feedback interfaces requiring stable component supply across extended product lifecycles.
Supply support for R5F21227DFP 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, formed in 2010 from the merger of NEC Electronics and Renesas Technology, is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive and industrial markets.
The R8C/22 Group, including R5F21227DFP, was engineered for cost-sensitive, real-time embedded control in automotive networking and factory automation - balancing performance, integration, and qualification rigor without full automotive AEC-Q100 grading.
FAQ
What is the maximum operating frequency and corresponding voltage range for R5F21227DFP?
R5F21227DFP operates at up to 20 MHz with a supply voltage of 3.0 V to 5.5 V. At 10 MHz, it supports a wider range of 2.7 V to 5.5 V. These ratings are specified for the D version (−40°C to +85°C) and confirmed in the R8C/22 Group datasheet Rev.2.00. The minimum instruction execution time is 50 ns at 20 MHz, enabling deterministic real-time behavior in control applications.
Does R5F21227DFP include on-chip debug support, and what interface is used?
Yes, R5F21227DFP supports on-chip debugging via the single-wire debug interface using the RES pin (pin 7). The emulator debug region occupies addresses 20000h to 23FFFh, which must be excluded from user code. Debug functionality is fully documented in the R8C/22 Group Hardware Manual and requires Renesas E8 or E1 emulators.
What peripheral modules are multiplexed on P1_5, and how is selection handled?
P1_5 serves as RXD0 (UART0 receive), TRAIO (Timer RA I/O), or INT1 (external interrupt 1), depending on internal register configuration. Selection is controlled by the PM15 and PMC15 bits in the port mode control registers - no external hardware modification is needed. This flexibility allows dynamic reassignment in firmware for different operational modes.
Is R5F21227DFP qualified for automotive applications, and what standards does it meet?
R5F21227DFP is rated for −40°C to +85°C (D version) and designed for automotive body electronics and factory automation. While it meets Renesas' "Standard" quality grade per document REJ03B0097-0200, it is not AEC-Q100 certified. Customers deploying R5F21227DFP in automotive systems must perform their own qualification per end-application requirements.
How is the CAN module in R5F21227DFP configured for message filtering and transmission priority?
The CAN module in R5F21227DFP uses a 16-slot message buffer system with individual acceptance filters per slot. Transmission priority is determined by message ID (lower ID = higher priority) and can be overridden via the TXPRI register. All configuration - including mask registers, control bits, and buffer assignment - is performed through SFRs in the 01300h–0147Fh CAN-specific area, as defined in the R8C/22 Group hardware manual.
R5F21227DFP#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- R8C/2x/22
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- CANbus, I2C, LINbus, SIO, SSU, UART/USART
- Peripherals:
- POR, Voltage Detect, WDT
- Number of I/O:
- 41
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21227DFP#U0 FAQ
1.How can I place an order for R5F21227DFP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21227DFP#U0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F21227DFP#U0 reliable?
The price and inventory of R5F21227DFP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21227DFP#U0 is usually 5 days.
3.What payment methods are accepted for R5F21227DFP#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21227DFP#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21227DFP#U0?
R5F21227DFP#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21227DFP#U0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F21227DFP#U0?
For technical support, including R5F21227DFP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21227DFP#U0 requirements.
6.How does Aetrix verify that R5F21227DFP#U0 is sourced from the original manufacturer or authorized distributors?
All R5F21227DFP#U0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F21227DFP#U0 meets industry standards.
7.What is the process for return or replacement of R5F21227DFP#U0?
All R5F21227DFP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21227DFP#U0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F21227DFP#U0 part is unused and in its original packaging.
Return procedure for R5F21227DFP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21227DFP#U0 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
