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Renesas R5F21356CDFP#50
- Part No.:
- R5F21356CDFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21356CDFP#50.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,718
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Product details
Overview
R5F21356CDFP#50 from Renesas is a 16-bit R8C CPU core MCU 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 47 CMOS I/O ports with pull-up select, and integrates UART0/1/2, I²C, LIN, 10-bit × 12-channel ADC, dual 8-bit DAC, and six timer modules (RA–RE + RD dual 16-bit) for motor control and real-time clocking in consumer appliance systems.
For engineers reviewing the R5F21356CDFP#50 datasheet, R5F21356CDFP#50 pinout, R5F21356CDFP#50 application, or R5F21356CDFP#50 equivalent, key selection criteria include its -40°C to +85°C industrial temperature grade (D version), 52-pin LQFP package with 0.65 mm pitch, integrated voltage detection (VDD = 1.8–5.5 V), low-power wait/stop modes (down to 2.0 µA), and hardware LIN module using Timer RA and UART0.
Technical Context
The R5F21356CDFP#50 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte (00000h–FFFFFh), with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash at 03000h–03FFFh.
It supports four clock sources: XIN (up to 20 MHz crystal/resonator), XCIN (32 kHz crystal), high-speed on-chip oscillator (adjustable), and low-speed on-chip oscillator - all with oscillation stop detection and selectable frequency dividers (1/2/4/8/16). Power management includes standard, wait, and stop modes with dedicated low-speed oscillator for watchdog and RTC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 50 ns min instruction time @ 20 MHz, 16×16→32-bit multiplier |
| Memory | 32 KB flash program ROM, 2.5 KB RAM, 4 KB data flash (1 KB × 4 blocks) with BGO support |
| Operating Voltage | 1.8 V to 5.5 V - enables single-supply operation across battery and line-powered systems |
| Temperature Range | -40°C to +85°C (D version) - qualified for industrial and extended-temperature embedded applications |
| Package | 52-pin LQFP (PLQP0052JA-A), 10 mm × 10 mm, 0.65 mm pitch - compatible with standard SMT reflow profiles |
| Peripherals | UART0/1/2, I²C-bus, hardware LIN, 10-bit × 12-channel ADC, dual 8-bit DAC, six timers including PWM-capable Timer RD (6-pin complementary PWM) |
| Power Consumption | Typ. 6.5 mA @ 5.0 V/20 MHz; 3.5 µA in wait mode (32 kHz); 2.0 µA in stop mode - supports energy-sensitive designs |
Pinout & Package
52-pin LQFP package (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pin pitch. Pin functions include 47 programmable CMOS I/O ports (with pull-up select), 12 analog inputs (AN0–AN11), dual DAC outputs (DA0/DA1), 3 UART channels, I²C/SCL/SDA, LIN TX/RX, 32 kHz crystal input (XCIN/XCOUT), main clock input (XIN/XOUT), RESET, MODE, and VREF.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Port 0 I/O + AN7–AN0 + DA1 + TREO | 8-bit bidirectional port with analog input (12-bit ADC channel mapping), DAC output, and real-time clock output |
| P1_0–P1_7 | Port 1 I/O + AN8–AN11 + KI0–KI3 | 8-bit port supporting key interrupt inputs (KI0–KI3) and additional ADC channels for keypad sensing |
| P2_0–P2_7 | Port 2 I/O + TRDIOx + TRCIOx | 8-bit port with Timer RD and RC I/O pins - used for PWM output, capture/compare, and motor phase control |
| XIN / XOUT | Main system clock oscillator interface | Connects to external crystal/resonator (up to 20 MHz); enables precise timing for UART, timers, and ADC sampling |
| XCIN / XCOUT | 32 kHz real-time clock oscillator interface | Supports low-power RTC operation and watchdog timer independent of main clock domain |
| RESET | Active-low reset input | Asynchronous hardware reset; triggers power-on reset and voltage monitor reset events |
| MODE | Boot mode configuration | Must be pulled high via resistor to enable single-chip mode - required for normal flash execution |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erase/write during program execution - enables firmware updates without halting real-time control loops |
| Hardware LIN Module | Dedicated LIN 2.0/2.1 support using Timer RA and UART0 - eliminates software bit-banging and ensures protocol compliance |
| Complementary PWM Mode | Timer RD supports 3-phase complementary PWM (6-pin output) with dead-time insertion - suitable for BLDC motor gate drivers |
| Voltage Detection Circuit | Configurable voltage monitor with 3 detection levels (including POR) - provides robust brown-out protection across supply ranges |
| Low-Power Operating Modes | Wait mode (3.5 µA @ 32 kHz) and stop mode (2.0 µA) - extends battery life in portable and remote sensor applications |
Applications
| Home Appliance Control | Office Equipment Motor Drive |
|---|---|
Use Scenario: Microcontroller in washing machine main control board managing water valve, pump, heater, and display. IC Role / Device Role / Timing Role: Primary system controller executing real-time motor sequencing, ADC-based temperature monitoring, and LIN communication with display module. Use Value: Integrated 6-pin complementary PWM and hardware LIN reduce external component count and ensure deterministic timing for safety-critical cycles. |
Use Scenario: Embedded controller in multifunction printer managing paper feed, scanner illumination, and toner motor. IC Role / Device Role / Timing Role: Central timing and I/O coordinator with synchronized PWM for stepper/servo motors and UART/I²C for sensor and UI communication. Use Value: Dual 8-bit DACs drive analog lamp dimming circuits; 10-bit ADC monitors thermal sensors without external signal conditioning. |
| Consumer Audio System | Industrial Sensor Hub |
Use Scenario: Digital audio amplifier subsystem in active speaker handling volume, EQ, and input switching. IC Role / Device Role / Timing Role: Peripheral manager interfacing rotary encoders (KI inputs), DACs for analog output stage, and UART for host MCU coordination. Use Value: Key interrupt inputs (KI0–KI3) with debounce and wake-up capability enable ultra-low-power standby with responsive user interface. |
Use Scenario: Edge node in factory automation collecting temperature, humidity, and vibration data before forwarding via UART to gateway. IC Role / Device Role / Timing Role: Low-power sensor aggregator with ADC sweep mode, RTC timestamping, and stop-mode wake-up on external trigger (INT0). Use Value: 2.0 µA stop mode and 32 kHz RTC allow multi-year battery operation while maintaining accurate time-stamped measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21356CNFP | N version (-20°C to +85°C); identical memory, peripherals, and pinout | Suitable for commercial-grade appliances not requiring extended temperature range | Select when operating ambient stays above -20°C and cost sensitivity outweighs industrial qualification needs |
| R5F21357CDFP | 48 KB program ROM, 4 KB RAM, same D-version temp grade and 52-pin LQFP package | Required for larger firmware images (e.g., USB stack, advanced UI logic) without changing PCB layout | Choose when future firmware expansion or added feature sets demand more code space while retaining pin compatibility |
Compared with R5F21356CNFP, the R5F21356CDFP#50 offers guaranteed operation down to -40°C - critical for outdoor or uncontrolled-environment deployments; compared with R5F21357CDFP, it trades 16 KB ROM and 1.5 KB RAM for lower cost and power in fixed-function applications.
Availability
R5F21356CDFP#50 is available at Aetrix Electronics and suitable for home appliance control, office equipment motor drive, and industrial sensor hub applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F21356CDFP#50 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The R8C/35C Group, including R5F21356CDFP#50, was designed for cost-sensitive, high-reliability embedded control in consumer and industrial equipment - emphasizing EMI/EMS robustness, integrated analog peripherals, and low-power operation.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F21356CDFP#50?
The R5F21356CDFP#50 supports a maximum operating frequency of 20 MHz when powered at 2.7 V to 5.5 V. At reduced voltage (1.8 V to 5.5 V), it operates up to 5 MHz. This dual-voltage/frequency specification allows flexible design across battery-powered and line-powered systems while maintaining full peripheral functionality across the entire range.
Does the R5F21356CDFP#50 support in-system programming and debug interfaces?
Yes, the R5F21356CDFP#50 includes on-chip debug capability and supports in-system flash rewriting via the on-board debug interface. It does not require external programming hardware for firmware updates - enabling field upgrades and development iteration directly through the UART or dedicated debug pins defined in the Renesas E8/E10 emulator specification.
How many analog-to-digital converter channels does the R5F21356CDFP#50 provide, and what is their resolution?
The R5F21356CDFP#50 integrates a 10-bit successive-approximation ADC with 12 input channels (AN0–AN11). It supports sample-and-hold operation and sweep mode for automatic sequential conversion - delivering consistent 10-bit precision across all channels without external sample-hold circuitry.
What timer resources are available on the R5F21356CDFP#50 for motor control applications?
The R5F21356CDFP#50 provides Timer RD (dual 16-bit) with 4 capture/compare registers and 6 PWM output pins, supporting complementary PWM mode with programmable dead time - ideal for three-phase BLDC or PMSM motor gate driving. Timer RC adds 3-pin PWM, and Timer RB offers programmable waveform generation for auxiliary timing tasks.
Is the R5F21356CDFP#50 pin-compatible with other members of the R8C/35C Group?
Yes, all R8C/35C Group devices in the 52-pin LQFP package (PLQP0052JA-A), including R5F21356CDFP#50, share identical pinouts and electrical characteristics. This enables direct substitution between variants (e.g., R5F21355CDFP, R5F21357CDFP) for memory scaling or feature adjustment without PCB redesign.
R5F21356CDFP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- R8C/3x/35C
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- 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:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21356CDFP#50 FAQ
1.How can I place an order for R5F21356CDFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21356CDFP#50 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 R5F21356CDFP#50 reliable?
The price and inventory of R5F21356CDFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21356CDFP#50 is usually 5 days.
3.What payment methods are accepted for R5F21356CDFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21356CDFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21356CDFP#50?
R5F21356CDFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21356CDFP#50 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 R5F21356CDFP#50?
For technical support, including R5F21356CDFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21356CDFP#50 requirements.
6.How does Aetrix verify that R5F21356CDFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F21356CDFP#50 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 R5F21356CDFP#50 meets industry standards.
7.What is the process for return or replacement of R5F21356CDFP#50?
All R5F21356CDFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21356CDFP#50, 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 R5F21356CDFP#50 part is unused and in its original packaging.
Return procedure for R5F21356CDFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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