My Inquiry
My Account
Renesas R5F21356CDFP#V2
- Part No.:
- R5F21356CDFP#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21356CDFP#V2.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,074
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F21356CDFP#V2 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, 10-bit × 12-channel ADC, dual 8-bit DAC, and six timer modules including complementary PWM-capable Timer RD for motor control in consumer appliances.
For engineers reviewing the R5F21356CDFP#V2 datasheet, R5F21356CDFP#V2 pinout, R5F21356CDFP#V2 application, or R5F21356CDFP#V2 equivalent, key selection criteria include its -40°C to +85°C D-version operating temperature, 52-pin LQFP package (PLQP0052JA-A), on-chip debug capability, voltage detection circuit with selectable thresholds, and real-time clock (Timer RE) for timekeeping in battery-backed systems.
Technical Context
The R5F21356CDFP#V2 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit hardware 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 module using Timer RA and UART0, and Timer RD with reset-synchronous and complementary PWM modes for three-phase motor drive - all controlled via dedicated SFRs such as U0MR, TRD0IC, and LINCR.
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 efficient math operations |
| 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 |
| Operating Frequency | 20 MHz max (VCC = 2.7–5.5 V); 5 MHz min (VCC = 1.8–5.5 V) - enables flexible clock scaling for power/performance trade-offs |
| I/O Ports | 47 CMOS I/O pins with programmable pull-up resistors and high-current drive capability for direct LED/relay interfacing |
| Analog Peripherals | 10-bit ADC × 12 channels with sample-and-hold and sweep mode; dual 8-bit DAC outputs (DA0/DA1) for analog signal generation |
| Timers | Timer RA/RB (8-bit), RC (16-bit × 1), RD (16-bit × 2 with 6-PWM output, complementary/sawtooth/triangular modulation), RE (8-bit RTC) |
| Communication | UART0/1/2, I²C-bus (shared with SSU), hardware LIN (using Timer RA + UART0), and synchronous serial I/O for sensor/actuator interfacing |
Pinout & Package
Package: 52-pin LQFP (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pitch - compatible with standard surface-mount assembly processes and thermal management in compact consumer enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Port 0 I/O | 8-bit bidirectional port with AN0–AN7 analog inputs, DA1 output, and trace/debug functions (TRCIOA/TRCTRG) |
| P1_0–P1_7 | Port 1 I/O | 8-bit bidirectional port with AN8–AN11, KI0–KI3 key inputs, IVREF1/IVCMP1 comparator references, and TRAIO/TRAO timer signals |
| P2_0–P2_7 | Port 2 I/O | 8-bit bidirectional port with INT1 interrupt, TRCIOB/TRCIOD timer I/O, and TRDIOA0–TRDIOD1 Timer RD channel pins |
| P3_0–P3_7 | Port 3 I/O | 8-bit bidirectional port with SCL/SDA (I²C), SSCK/SSI/SSO (SSU), INT1/INT2/INT3 interrupts, and TRAO/TRBO timer outputs |
| P4_2–P4_7 | Port 4 I/O | VREF reference input, MODE boot configuration, XCIN/XCOUT (32 kHz crystal), XIN/XOUT (main oscillator), and RESET input |
| P5_6/P5_7 | Port 5 I/O | TRAO output and general-purpose input-only pin (P5_7) |
| P6_0–P6_7 | Port 6 I/O | TREO clock output, INT2/INT3/INT4 interrupts, TXD1/RXD1 serial I/O, CLK1/CLK2 timing sources, and TRCIOD/TRCIOC timer signals |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash programming/erasure (10,000 cycles) occurs concurrently with CPU execution - enabling seamless firmware field updates |
| Voltage Detection Circuit | Configurable power-on reset and dual-level voltage monitoring (VDD detect + selectable VDET0/VDET1 thresholds) for robust brown-out protection |
| Low-Power Modes | Wait mode (3.5 µA @ 3.0 V, 32 kHz XCIN) and stop mode (2.0 µA @ 3.0 V) extend battery life in portable consumer devices |
| Hardware LIN Module | Dedicated LIN physical layer implementation using UART0 and Timer RA - eliminates software protocol overhead for automotive body electronics |
| Real-Time Clock (Timer RE) | 8-bit counter with seconds/minutes/hours/days-of-week tracking and output compare - supports calendar-based wake-up and scheduling |
Applications
| Home Appliance Control | Office Equipment Motor Drive |
|---|---|
Use Scenario: Microcontroller in washing machine main board managing water valve actuation, motor speed control, and user interface. IC Role / Device Role / Timing Role: Primary system controller executing motor control algorithms via Timer RD's complementary PWM, reading front-panel key inputs (KI0–KI3), and communicating with display via UART1. Use Value: Integrated 6-pin PWM output and LIN interface reduce external component count while meeting IEC 61000-4-3 EMI immunity requirements. | Use Scenario: Embedded controller in laser printer engine managing paper feed motor, fuser temperature regulation, and toner delivery sequencing. IC Role / Device Role / Timing Role: Real-time task scheduler using Timer RE for precise timing of fuser heater duty cycles and ADC sampling of thermistor feedback (AN0–AN11). Use Value: On-chip 10-bit ADC with sample-and-hold and sweep mode enables simultaneous multi-sensor acquisition without external multiplexing. |
| Audio System Power Management | Consumer IoT Sensor Hub |
Use Scenario: Power supervisor in smart speaker base unit controlling standby-to-active transitions and audio amplifier bias sequencing. IC Role / Device Role / Timing Role: Voltage detection circuit monitors VCC for brown-out recovery; low-power wait mode reduces quiescent current during idle periods. Use Value: 2.0 µA stop mode current and programmable voltage thresholds ensure reliable operation across varying AC adapter tolerances. | Use Scenario: Central node in wireless sensor network aggregating temperature, humidity, and motion data before transmission via UART2 to BLE module. IC Role / Device Role / Timing Role: Data concentrator using UART2 in multiprocessor communication mode, ADC for analog sensor inputs, and DTC for autonomous memory-to-peripheral transfers. Use Value: DTC (Data Transfer Controller) offloads CPU during burst sensor reads, improving system responsiveness and reducing firmware complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21356CNFP | Same core, memory, and peripherals but N-version (-20°C to +85°C) instead of D-version (-40°C to +85°C) | Suitable for indoor consumer appliances without extended temperature requirements | Select R5F21356CNFP only if ambient operating temperature remains above -20°C; otherwise R5F21356CDFP#V2 is required for industrial-grade reliability. |
| R5F21355CDFP | 24 KB program ROM, 2 KB RAM, identical D-version temp range and peripheral set | Lower memory capacity suits simpler control tasks like basic fan speed regulation or lighting dimming | Choose R5F21355CDFP when firmware size is under 24 KB and cost optimization is prioritized over future code expansion headroom. |
Compared with R5F21356CNFP and R5F21355CDFP, the R5F21356CDFP#V2 provides the widest temperature margin (-40°C to +85°C) and largest memory footprint (32 KB ROM/2.5 KB RAM) within the R8C/35C family - making it optimal for next-generation consumer products requiring field firmware updates and extended environmental resilience.
Availability
R5F21356CDFP#V2 is available at Aetrix Electronics and suitable for home appliance control, office equipment motor drive, and audio system power management requiring stable component supply throughout product lifecycle.
Supply support for R5F21356CDFP#V2 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, and power solutions for automotive, industrial, and consumer markets.
The R8C/35C Group, including R5F21356CDFP#V2, was designed for cost-sensitive, high-reliability embedded control in electronic household appliances and office 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#V2?
The R5F21356CDFP#V2 supports a maximum operating frequency of 20 MHz at a supply voltage of 2.7 V to 5.5 V, and a minimum frequency of 5 MHz down to 1.8 V. This dual-voltage/frequency capability allows designers to optimize performance versus power consumption in battery-powered or energy-efficient applications while maintaining full functionality across the specified range.
Does the R5F21356CDFP#V2 support in-circuit debugging and flash reprogramming?
Yes, the R5F21356CDFP#V2 includes on-chip debug functionality and supports on-board flash rewrite operations. These capabilities enable real-time firmware development, field updates, and diagnostic tracing without requiring external emulators - critical for rapid iteration and post-deployment maintenance of consumer electronics products.
How many analog-to-digital converter channels does the R5F21356CDFP#V2 provide, and what is their resolution?
The R5F21356CDFP#V2 integrates a 10-bit resolution analog-to-digital converter with 12 input channels (AN0–AN11), including sample-and-hold and sweep mode functionality. This enables accurate sensing of multiple analog sensors - such as thermistors, potentiometers, or current shunts - with minimal external circuitry, directly supporting closed-loop control in appliances and industrial equipment.
What packaging and pin count does the R5F21356CDFP#V2 use?
The R5F21356CDFP#V2 uses a 52-pin LQFP package (PLQP0052JA-A) with a 10 mm × 10 mm body and 0.65 mm lead pitch. This industry-standard footprint ensures compatibility with automated PCB assembly processes and provides sufficient I/O density for complex control applications while maintaining thermal and mechanical reliability in consumer-grade enclosures.
Is the R5F21356CDFP#V2 qualified for industrial temperature operation?
Yes, the R5F21356CDFP#V2 is the D-version variant rated for an operating ambient temperature range of -40°C to +85°C. This qualification makes it suitable for deployment in demanding environments such as industrial control panels, outdoor kiosks, or automotive cabin electronics where extended thermal stability is required beyond commercial-grade specifications.
R5F21356CDFP#V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- R8C/3x/35C
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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#V2 FAQ
1.How can I place an order for R5F21356CDFP#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21356CDFP#V2 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#V2 reliable?
The price and inventory of R5F21356CDFP#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21356CDFP#V2 is usually 5 days.
3.What payment methods are accepted for R5F21356CDFP#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21356CDFP#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21356CDFP#V2?
R5F21356CDFP#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21356CDFP#V2 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#V2?
For technical support, including R5F21356CDFP#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21356CDFP#V2 requirements.
6.How does Aetrix verify that R5F21356CDFP#V2 is sourced from the original manufacturer or authorized distributors?
All R5F21356CDFP#V2 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#V2 meets industry standards.
7.What is the process for return or replacement of R5F21356CDFP#V2?
All R5F21356CDFP#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21356CDFP#V2, 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#V2 part is unused and in its original packaging.
Return procedure for R5F21356CDFP#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21356CDFP#V2 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…
