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Renesas R5F21356CNFP#10
- Part No.:
- R5F21356CNFP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21356CNFP#10.pdf
- Description:
- R8C35 MCU 1.8/5.5V 32K 52LQFP -2
- Quantity:
- Payment:
- Shipping:
Inventory:3,785
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Product details
Overview
R5F21356CNFP#10 from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 32 KB flash program ROM, 2.5 KB RAM, and 4 KB data flash (1 KB × 4 blocks) supporting background operation (BGO). It operates at up to 20 MHz (VCC = 2.7–5.5 V), features a 16×16→32-bit hardware multiplier, and integrates UART0/1/2, I²C, LIN, 10-bit ADC (12 channels), dual 8-bit DACs, and six timer modules (RA–RE + RD dual-channel) for motor control and real-time clocking in consumer appliance control systems.
For engineers reviewing the R5F21356CNFP#10 datasheet, R5F21356CNFP#10 pinout, R5F21356CNFP#10 application, or R5F21356CNFP#10 equivalent, key selection criteria include its 52-pin LQFP package, -20°C to +85°C temperature grade (N version), integrated LIN hardware module, BGO-enabled data flash for firmware updates during runtime, and low-power stop mode (2.0 µA).
Technical Context
The R5F21356CNFP#10 implements the R8C CPU core with 89 fundamental instructions, 1-Mbyte address space, and register bank architecture (two 16-bit register banks). Its clock system includes four independent sources: XIN/XOUT (up to 20 MHz), XCIN/XCOUT (32 kHz), high-speed on-chip oscillator (adjustable), and low-speed on-chip oscillator - all selectable via software-controlled frequency dividers (1/2/4/8/16).
Peripheral integration centers on deterministic real-time control: Timer RD provides complementary PWM for three-phase motor drive (6-pin output, triangular/sawtooth modulation), Timer RC supports 3-pin PWM, and the LIN module leverages Timer RA and UART0 for ISO-9141/SAE J2602-compliant communication without CPU intervention. The DTC (Data Transfer Controller) enables autonomous memory-to-peripheral transfers triggered by 33 sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 20-bit PC, dual register banks, and 16×16→32-bit hardware multiplier for fast math-intensive tasks. |
| Memory | 32 KB flash program ROM, 2.5 KB RAM, 4 KB data flash (1 KB × 4 blocks) with BGO for concurrent execution and reprogramming. |
| Operating Frequency | 20 MHz max (VCC = 2.7–5.5 V); 5 MHz min (VCC = 1.8–5.5 V); minimum instruction time = 50 ns at full speed. |
| Power Consumption | 6.5 mA typical @ 5.0 V/20 MHz; 3.5 µA @ 3.0 V in wait mode (32 kHz XCIN); 2.0 µA @ 3.0 V in stop mode. |
| Analog Peripherals | 10-bit ADC (12 channels, sample-and-hold, sweep mode); dual 8-bit DACs (DA0/DA1); two comparator B inputs (IVCMP1/IVCMP3). |
| Timers & Control | Timer RA–RE + dual-channel Timer RD; RD supports reset-synchronous/complementary PWM for 3-phase motors; RE provides real-time clock (seconds–days). |
| Communication | UART0/1/2 (UART2 supports I²C-bus mode); SSU (shared with I²C); hardware LIN module (Timer RA + UART0); 47 CMOS I/O ports with pull-up select. |
Pinout & Package
Package: 52-pin LQFP (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pitch, N-version (-20°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC/AVCC (Pin 12) | Power supply input | Main digital supply (1.8–5.5 V); AVCC powers ADC/DAC reference - requires local decoupling to AVSS. |
| VSS/AVSS (Pin 10) | Ground reference | Digital and analog ground return; separate AVSS minimizes noise coupling into analog peripherals. |
| XIN/XOUT (Pins 11/9) | External crystal interface | Supports 20 MHz crystal for high-precision timing; XOUT can accept external clock if XIN is left open. |
| XCIN/XCOUT (Pins 6/7) | 32 kHz crystal interface | Enables low-power RTC operation and watchdog timing independent of main clock domain. |
| RESET (Pin 8) | Active-low reset input | Hardware reset assertion resets CPU, peripherals, and registers; synchronous deassertion required for reliable startup. |
| P0_0–P0_7 (Pins 39–46) | CMOS I/O port | 8-bit bidirectional port with programmable pull-up; AN0–AN7 and DA0/DA1 share pins - analog/digital function selected by register. |
| INT0–INT4 (Pins 30,25,27,28,29) | Interrupt request inputs | Five dedicated interrupt pins with priority levels (0–7); INT0 linked to Timer RB/RC/RD for event-triggered capture or reload. |
| TRAO/TRBO (Pins 1/3/26) | Timer output signals | Timer RA/B output pins for PWM, pulse generation, or waveform synthesis; TRAO also serves as LIN bus output. |
| UART2 pins (Pins 13–16) | Serial interface I/O | P3_7 (SDA/SCL/TXD2/RXD2), P3_5 (SCL/CLK2), P3_4 (SSI/RXD2/SCL2), P3_3 (SCS/CTS2/RTS2) support multimode UART/I²C/SSU operation. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming occurs concurrently with CPU code execution - enables field firmware updates without halting application logic. |
| Hardware LIN Module | Integrated LIN 2.0/SAE J2602 controller using Timer RA and UART0 - eliminates external transceiver for automotive body electronics and appliance sub-networks. |
| Complementary PWM (Timer RD) | Generates synchronized three-phase waveforms (6 outputs) with dead-time insertion and triangular/sawtooth modulation - directly drives gate drivers in BLDC motor inverters. |
| Low-Power Operating Modes | Stop mode draws only 2.0 µA @ 3.0 V; wait mode retains RAM and clocks 32 kHz XCIN - ideal for battery-powered remote controls and sensor nodes. |
| 12-Channel 10-bit ADC with Sweep Mode | Automatically sequences conversions across all 12 analog inputs without CPU polling - reduces firmware overhead in multi-sensor household appliance monitoring. |
Applications
| Home Appliance Motor Control | Office Equipment Power Management |
|---|---|
Use Scenario: Controlling brushless DC motors in washing machine drum drives and HVAC blowers. IC Role / Device Role / Timing Role: Primary motor controller executing FOC algorithms, generating complementary PWM, and managing current sensing via ADC. Use Value: Timer RD's reset-synchronous PWM ensures precise phase alignment; BGO allows over-the-air firmware updates to optimize torque profiles without service interruption. | Use Scenario: Regulating power sequencing and thermal monitoring in multifunction printers and copiers. IC Role / Device Role / Timing Role: System supervisor managing AC/DC conversion status, fan speed (via PWM), and temperature thresholds (ADC + comparator). Use Value: Dual 8-bit DACs generate precise reference voltages for power supply feedback loops; voltage detection circuit enables brown-out reset at 2.7 V. |
| Audio Equipment Signal Routing | Consumer Remote Control Interface |
Use Scenario: Implementing digital audio switching, volume control, and LED display drivers in AV receivers. IC Role / Device Role / Timing Role: Peripheral coordinator handling I²C-based codec configuration, UART-based IR command parsing, and DAC-based analog output scaling. Use Value: UART2's I²C-bus mode interfaces directly with audio codecs; 47 GPIOs support matrix keypad scanning and LED multiplexing without external logic. | Use Scenario: Decoding infrared remote commands and driving status LEDs in set-top boxes and smart TVs. IC Role / Device Role / Timing Role: Low-power IR receiver front-end with key input interrupt (KI0–KI3) and real-time clock for wake-on-timer functionality. Use Value: Stop mode current of 2.0 µA extends battery life; Timer RE maintains accurate timekeeping while CPU sleeps; KI interrupts wake CPU on button press with <1 µs latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21356CDFP#10 | D-version (-40°C to +85°C industrial temp range); identical memory, peripherals, and pinout. | Required for automotive cabin modules or outdoor-rated equipment where extended temperature operation is mandatory. | Select R5F21356CDFP#10 when ambient operating temperature exceeds 85°C or drops below -20°C. |
| R5F21355CNFP#10 | 24 KB program ROM, 2 KB RAM, same data flash and peripheral set; otherwise pin- and code-compatible. | Suitable for cost-sensitive designs with reduced firmware footprint, such as basic remote controls or simple sensor nodes. | Choose R5F21355CNFP#10 when application firmware fits within 24 KB and BOM cost optimization is critical. |
Compared with R5F21356CDFP#10, the R5F21356CNFP#10 offers lower temperature qualification but identical functionality for commercial environments; versus R5F21355CNFP#10, it provides 8 KB more program ROM for complex motor control algorithms or enhanced UI features without changing PCB layout.
Availability
R5F21356CNFP#10 is available at Aetrix Electronics and suitable for home appliance motor control, office equipment power management, and consumer remote control interface applications requiring stable component supply across long production lifecycles.
Supply support for R5F21356CNFP#10 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/35C Group, including R5F21356CNFP#10, was designed for cost-effective, low-power embedded control in consumer electronics - emphasizing integrated peripherals (LIN, BGO flash, multi-PWM timers), EMI/EMS robustness, and rapid time-to-market for appliance and audio product development.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F21356CNFP#10?
The R5F21356CNFP#10 supports a maximum operating frequency of 20 MHz at a supply voltage of 2.7 V to 5.5 V. At lower voltages (1.8 V to 5.5 V), the maximum frequency is reduced to 5 MHz to ensure stable operation. Its minimum instruction execution time is 50 ns under full-speed conditions, enabling responsive real-time control in appliance and motor applications.
Does the R5F21356CNFP#10 support in-system programming and background operation of data flash?
Yes, the R5F21356CNFP#10 includes 4 KB of data flash (1 KB × 4 blocks) with full background operation (BGO) capability. This allows the CPU to execute application code from program ROM while simultaneously erasing or programming data flash - essential for firmware updates, parameter storage, and calibration data retention without system interruption.
What peripheral functions are integrated into the R5F21356CNFP#10 for motor control applications?
The R5F21356CNFP#10 integrates Timer RD (dual 16-bit channels with 4 capture/compare registers), which supports complementary PWM output on six pins, reset-synchronous PWM for three-phase waveforms, and triangular/sawtooth modulation. Combined with its 10-bit ADC (12 channels) for current/voltage sensing and dual 8-bit DACs for reference generation, it delivers a complete motor control subsystem in a single chip.
How does the hardware LIN module in the R5F21356CNFP#10 operate, and what standards does it support?
The R5F21356CNFP#10 implements a hardware LIN module using Timer RA and UART0 to meet ISO-9141 and SAE J2602 specifications. It handles LIN frame formatting, checksum calculation, and synchronization automatically - reducing CPU load and ensuring protocol compliance for automotive body electronics and appliance sub-networks without external transceivers.
What are the low-power modes supported by the R5F21356CNFP#10, and what is the typical current consumption in each?
The R5F21356CNFP#10 supports standard operating mode, wait mode, and stop mode. Typical current draw is 6.5 mA @ 5.0 V/20 MHz (active), 3.5 µA @ 3.0 V in wait mode (with 32 kHz XCIN running), and 2.0 µA @ 3.0 V in stop mode - making it suitable for battery-powered remotes and energy-conscious consumer devices requiring extended standby life.
R5F21356CNFP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- R8C/3x/35C
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SIO, SSU, UART/USART
- Peripherals:
- POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 47
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 12x10b; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21356CNFP#10 FAQ
1.How can I place an order for R5F21356CNFP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21356CNFP#10 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 R5F21356CNFP#10 reliable?
The price and inventory of R5F21356CNFP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21356CNFP#10 is usually 5 days.
3.What payment methods are accepted for R5F21356CNFP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21356CNFP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21356CNFP#10?
R5F21356CNFP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21356CNFP#10 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 R5F21356CNFP#10?
For technical support, including R5F21356CNFP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21356CNFP#10 requirements.
6.How does Aetrix verify that R5F21356CNFP#10 is sourced from the original manufacturer or authorized distributors?
All R5F21356CNFP#10 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 R5F21356CNFP#10 meets industry standards.
7.What is the process for return or replacement of R5F21356CNFP#10?
All R5F21356CNFP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21356CNFP#10, 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 R5F21356CNFP#10 part is unused and in its original packaging.
Return procedure for R5F21356CNFP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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