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Renesas R5F21356CDFP#30
- Part No.:
- R5F21356CDFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21356CDFP#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F21356CDFP#30 from Renesas Electronics 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, 12-channel 10-bit ADC, dual 8-bit DAC, and six timer modules - deployed in consumer audio equipment and office automation systems.
For engineers reviewing the R5F21356CDFP#30 datasheet, R5F21356CDFP#30 pinout, R5F21356CDFP#30 application, or R5F21356CDFP#30 equivalent, key selection criteria include its -40°C to +85°C industrial temperature grade, 52-pin LQFP package (PLQP0052JA-A), on-chip debug support, and hardware LIN module implementation using Timer RA and UART0.
Technical Context
The R5F21356CDFP#30 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.
Peripheral integration includes three UART channels (UART0/1/2), one I²C bus (shared with SSU), hardware LIN via UART0+Timer RA, 12-channel 10-bit ADC with sample-and-hold and sweep mode, dual 8-bit DAC outputs (DA0/DA1), and five independent timer units (RA–RE) plus dual 16-bit Timer RD with complementary PWM and three-phase waveform generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 16×16→32-bit multiplier, and MAC support for real-time signal processing |
| Operating Frequency | 20 MHz max (VCC = 2.7–5.5 V); 5 MHz min (VCC = 1.8–5.5 V) - enables high-speed control loop execution |
| Memory | 32 KB flash program ROM, 2.5 KB RAM, 4 KB data flash (1 KB × 4 blocks) with BGO for firmware updates without halting execution |
| Analog Peripherals | 12-channel 10-bit ADC with sample-and-hold and sweep mode; dual 8-bit DACs (DA0/DA1) for analog output generation |
| Timers | Timer RA (8-bit), RB (8-bit), RC (16-bit, 4 compare/capture), RD (16-bit × 2, 6-PWM/complementary/three-phase), RE (8-bit RTC) |
| Communication | UART0/1/2 (UART2 supports I²C mode), I²C bus (shared with SSU), hardware LIN module (UART0 + Timer RA) |
| Power & Temp | 1.8–5.5 V supply range; -40°C to +85°C operating ambient (D version); wait mode current = 3.5 µA @ 3.0 V, 32 kHz |
Pinout & Package
Package: 52-pin LQFP (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pin pitch, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC | Power supply input | Main and analog power pins requiring local decoupling; AVCC must be filtered between AVCC and AVSS |
| VSS / AVSS | Ground reference | Digital and analog ground return paths; separation improves ADC noise immunity |
| RESET | Active-low reset input | Asynchronous reset assertion forces CPU restart; internal POR and voltage detection ensure reliable initialization |
| XIN / XOUT | External crystal oscillator interface | Supports 20 MHz ceramic resonator or crystal; enables precise system clock timing |
| XCIN / XCOUT | 32 kHz low-frequency crystal interface | Feeds real-time clock (Timer RE) and low-power stop/wait modes |
| P0_0–P0_7 | Port 0 I/O pins | 8-bit bidirectional port with AN0–AN7 analog inputs, DA0/DA1 outputs, and TRCIOx trace functions |
| INT0–INT4 | External interrupt inputs | Five dedicated interrupt pins (INT0–INT4) with configurable priority levels (7 levels) for event-driven response |
| UART0 TXD0/RXD0 | Asynchronous serial interface | Full-duplex UART channel for host communication, bootloader, or peripheral bridging |
| UART2 SDA2/SCL2 | I²C-bus interface | Shared pins support I²C master/slave operation (addressable device control and sensor interfacing) |
| TRAO / TRBO | Timer output signals | Timer RA and RB output pins for PWM, pulse generation, or waveform synthesis |
| TREO | Real-time clock output | Divided clock output from Timer RE - provides accurate timebase for scheduling or LED dimming |
| DA0 / DA1 | Digital-to-analog outputs | Two independent 8-bit DAC outputs for analog voltage generation (e.g., bias control, audio level setting) |
| AN0–AN11 | Analog input channels | 12 single-ended analog inputs with internal sample-and-hold; used for sensor monitoring or user interface feedback |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash programming/erasure while executing code from program ROM - enables seamless field firmware updates |
| Hardware LIN Module | Integrated LIN 2.0/2.1 support via UART0 and Timer RA - eliminates external transceiver for automotive body electronics |
| Low-Power Operating Modes | Wait mode (3.5 µA @ 32 kHz) and stop mode (2.0 µA) - extends battery life in portable consumer devices |
| On-Chip Debug Interface | Fully integrated debug circuit with flash rewrite capability - reduces development cycle time and eliminates external emulators |
| EMI/EMS Optimized Design | Enhanced electromagnetic compatibility across all operating modes - simplifies CE/FCC certification for end products |
Applications
| Audio Equipment Control | Office Automation Devices |
|---|---|
Use Scenario: Volume control, equalizer tuning, and source switching in compact stereo receivers and Bluetooth speakers. IC Role / Device Role / Timing Role: Main system controller managing UI inputs, audio codec interface, and DAC output calibration. Use Value: Integrated 12-channel ADC reads rotary encoders and potentiometers; dual 8-bit DACs generate analog bias voltages for audio amplifiers. | Use Scenario: Paper jam detection, toner level sensing, and motor sequencing in laser printers and multifunction peripherals. IC Role / Device Role / Timing Role: Real-time motion controller coordinating stepper motors, sensors, and thermal management subsystems. Use Value: Timer RD's complementary PWM drives H-bridge motor drivers; hardware LIN interfaces with toner cartridge ICs. |
| Consumer Appliance UI | Industrial Panel Controllers |
Use Scenario: Touchless button scanning, display backlight dimming, and temperature regulation in microwave ovens and induction cooktops. IC Role / Device Role / Timing Role: Embedded UI processor handling capacitive touch sensing, LED driver timing, and safety-critical thermal shutdown logic. Use Value: 47 programmable I/O ports support matrix keypad scanning; Timer RE provides accurate real-time cooking countdowns. | Use Scenario: Local HMI control, sensor aggregation, and relay actuation in DIN-rail mounted industrial controllers. IC Role / Device Role / Timing Role: Standalone embedded controller managing RS-485 Modbus RTU communication and discrete I/O expansion. Use Value: UART2 in I²C mode interfaces with environmental sensors; -40°C to +85°C rating ensures reliability in unconditioned cabinet environments. |
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#30 | Same core, memory, and peripherals but rated for -20°C to +85°C (N version) | Suitable for commercial indoor applications only; not qualified for extended temperature industrial use | Select when cost sensitivity outweighs ambient temperature requirements and no extended temp validation is needed |
| R5F21358CDFP#30 | 64 KB program ROM, 6 KB RAM, same D-grade temperature and peripheral set | Enables larger firmware images with complex protocol stacks (e.g., BLE mesh, OTA update handlers) | Choose when future firmware scalability or additional feature integration (e.g., enhanced security routines) is required |
Compared with R5F21356CNFP#30, the R5F21356CDFP#30 offers guaranteed operation down to -40°C - critical for outdoor or factory-floor deployments - while R5F21358CDFP#30 adds 32 KB more program ROM for advanced connectivity features without changing pinout or thermal design.
Availability
R5F21356CDFP#30 is available at Aetrix Electronics and suitable for audio equipment control, office automation devices, consumer appliance UI, and industrial panel controllers requiring stable component supply across long production lifecycles.
Supply support for R5F21356CDFP#30 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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The R8C/35C Group, including R5F21356CDFP#30, was designed for cost-sensitive, EMI-robust embedded control in consumer and industrial appliances - emphasizing low-power operation, integrated analog peripherals, and hardware-assisted communication protocols.
FAQ
What is the maximum operating frequency of the R5F21356CDFP#30 and under what voltage conditions?
The R5F21356CDFP#30 achieves a maximum operating frequency of 20 MHz when powered at VCC = 2.7 V to 5.5 V. At lower supply voltages (1.8 V to 5.5 V), the maximum frequency is reduced to 5 MHz to maintain timing margin and stability. This dual-frequency capability allows flexible power/performance trade-offs in battery-powered or wide-input-voltage designs.
Does the R5F21356CDFP#30 support in-system programming of its data flash memory?
Yes, the R5F21356CDFP#30 supports background operation (BGO) for data flash, enabling in-system programming and erasure of its 4 KB data flash (1 KB × 4 blocks) while the CPU continues executing code from program ROM. This capability is essential for runtime parameter storage, firmware patching, and secure key updates without system interruption.
How many analog input channels does the R5F21356CDFP#30 provide, and what is their resolution?
The R5F21356CDFP#30 integrates a 10-bit resolution analog-to-digital converter with 12 single-ended input channels (AN0 through AN11). Each channel includes a sample-and-hold circuit and supports sweep mode for automatic sequential conversion - ideal for multi-sensor monitoring in appliances and industrial controls.
What communication interfaces are available on the R5F21356CDFP#30, and which support I²C functionality?
The R5F21356CDFP#30 provides UART0, UART1, and UART2, plus an I²C bus and synchronous serial unit (SSU). UART2 supports I²C mode natively, and the I²C bus shares pins with the SSU. Both interfaces operate at standard I²C speeds (100 kHz/400 kHz), enabling direct connection to temperature sensors, EEPROMs, and other I²C peripherals without external level shifters.
Is the R5F21356CDFP#30 pin-compatible with other members of the R8C/35C Group?
Yes, all R8C/35C Group MCUs, including R5F21356CDFP#30, share the identical 52-pin LQFP package (PLQP0052JA-A) and pin assignment. This allows direct substitution within the family - for example, upgrading to R5F21358CDFP#30 for more program ROM - without PCB layout changes, provided firmware and memory mapping are updated accordingly.
R5F21356CDFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- R8C/3x/35C
- Packaging:
- Tray
- 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#30 FAQ
1.How can I place an order for R5F21356CDFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21356CDFP#30 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#30 reliable?
The price and inventory of R5F21356CDFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21356CDFP#30 is usually 5 days.
3.What payment methods are accepted for R5F21356CDFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21356CDFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21356CDFP#30?
R5F21356CDFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21356CDFP#30 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#30?
For technical support, including R5F21356CDFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21356CDFP#30 requirements.
6.How does Aetrix verify that R5F21356CDFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F21356CDFP#30 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#30 meets industry standards.
7.What is the process for return or replacement of R5F21356CDFP#30?
All R5F21356CDFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21356CDFP#30, 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#30 part is unused and in its original packaging.
Return procedure for R5F21356CDFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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