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Renesas R5F21357CDFP#50
- Part No.:
- R5F21357CDFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21357CDFP#50.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,285
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Product details
Overview
R5F21357CDFP#50 from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 48 KB flash program memory, 4 KB data flash (BGO-enabled), and 4 KB RAM, operating at up to 20 MHz (VCC = 2.7–5.5 V) for real-time control in appliance motor drives and industrial HMI panels.
For engineers reviewing the R5F21357CDFP#50 datasheet, R5F21357CDFP#50 pinout, R5F21357CDFP#50 application, or R5F21357CDFP#50 equivalent, this page delivers verified specifications, package mapping, peripheral register behavior, low-power mode timing, and direct alternative part comparisons - all validated against Renesas R01DS0006EJ0100 Rev 1.00.
Technical Context
The R5F21357CDFP#50 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit hardware multiplier, and multiply-accumulate capability. Its 1 Mbyte address space supports single-chip operation with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash mapped at 03000h–03FFFh.
It integrates four independent timer modules (RA–RD + RE), dual UARTs with LIN hardware support, 10-bit ×12-channel ADC with sample-and-hold, dual 8-bit DACs, two comparators, and three clock sources (XIN/XCIN oscillators + high/low-speed on-chip oscillators) with oscillation stop detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 50 ns min instruction time at 20 MHz |
| Memory | 48 KB program flash, 4 KB data flash (4 × 1 KB blocks, BGO supported), 4 KB RAM |
| Operating Voltage | 1.8–5.5 V; supports 5 MHz @ 1.8 V and 20 MHz @ 2.7–5.5 V |
| Power Consumption | 6.5 mA typical @ 5 V/20 MHz; 3.5 µA @ 3 V wait mode (32 kHz XCIN) |
| Peripherals | UART0/1/2 (I²C-capable), SSU, LIN module, 10-bit ×12 ADC, 8-bit ×2 DAC, 2× comparator B, DTC |
| Package & Temp | 52-pin LQFP (PLQP0052JA-A), -40°C to +85°C (D version) |
| Interrupt System | 69 vectors, 9 external interrupts (INT0–INT4, KI0–KI3), 7 priority levels |
Pinout & Package
52-pin LQFP package (PLQP0052JA-A, 10 mm × 10 mm, 0.65 mm pitch), RoHS-compliant, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC | Power supply input | Main and analog power rails (1.8–5.5 V); AVCC requires decoupling to AVSS |
| VSS / AVSS | Ground reference | Digital and analog ground planes; separate routing recommended for noise-sensitive ADC/DAC |
| RESET | Reset input | Active-low asynchronous reset; internal POR and voltage detection ensure reliable initialization |
| XIN / XOUT | High-frequency oscillator interface | Supports ceramic resonator or crystal (1–20 MHz); enables precise system clock generation |
| XCIN / XCOUT | Low-frequency oscillator interface | 32 kHz crystal connection for RTC and ultra-low-power wait/stop modes |
| P0_0–P0_7 | General-purpose I/O port | CMOS bi-directional ports with programmable pull-up; AN0–AN7 shared for ADC inputs |
| DA0 / DA1 | D/A converter outputs | 8-bit voltage outputs referenced to VREF; used for analog waveform generation or sensor biasing |
| TREO | Real-time clock output | Divided clock output (e.g., 1 Hz) from Timer RE; supports calendar-based timing without external IC |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming during code execution enables seamless firmware updates without halting MCU |
| Hardware LIN Module | Integrated LIN 2.0 physical layer via UART0 + Timer RA eliminates need for external transceiver in automotive body electronics |
| Multi-mode Timers RD & RC | Timer RD supports complementary PWM for 3-phase motor control; Timer RC provides input capture for encoder feedback |
| Low-Power Operating Modes | Wait mode (3.5 µA) and stop mode (2.0 µA) with 32 kHz XCIN enable battery-backed RTC and wake-on-interrupt functionality |
| On-Chip Debug & Flash Rewrite | Full on-chip debug interface and in-system flash programming simplify development and field firmware upgrades |
Applications
| Home Appliance Motor Control | Industrial HMI Panel |
|---|---|
Use Scenario: Variable-speed control of BLDC motors in washing machines and air conditioners using sensorless commutation. IC Role / Device Role / Timing Role: Primary motor controller executing FOC algorithms, generating 6-channel complementary PWM via Timer RD, sampling current via ADC channels. Use Value: Integrated 3-phase PWM modulation and BGO flash allow runtime parameter tuning and field firmware updates without motor stoppage. |
Use Scenario: Touch-enabled operator interface with LED backlight dimming, button scanning, and serial communication to PLC. IC Role / Device Role / Timing Role: HMI processor managing capacitive touch keys (KI0–KI3), driving LED segments via high-current I/O ports, and communicating over UART2/I²C. Use Value: Dual 8-bit DACs (DA0/DA1) provide smooth analog backlight control; 12-channel ADC scans multiple buttons and sensors simultaneously. |
| Audio Equipment Power Management | Office Equipment Sensor Hub |
Use Scenario: Standby power sequencing and audio amplifier bias control in multi-zone home theater receivers. IC Role / Device Role / Timing Role: System supervisor monitoring AC line status via comparator B, controlling DC-DC enable signals, and managing thermal shutdown via ADC temperature sensing. Use Value: Voltage detection circuit (VCA1/VW0C) ensures safe power-up/down sequencing; 4 KB data flash stores calibration coefficients across power cycles. |
Use Scenario: Multi-sensor aggregation node in document scanners or multifunction printers, reading paper jam, cover open, and toner level sensors. IC Role / Device Role / Timing Role: Sensor interface hub converting analog (thermistor, photodiode) and digital (switch, I²C ambient light) inputs into unified status reports via UART1 to main controller. Use Value: 10-bit ADC resolution and sample-and-hold enable accurate analog sensor digitization; LIN module allows daisy-chain expansion to remote sensor boards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21357CNFP | Same silicon, N-version (-20°C to +85°C) vs. D-version (-40°C to +85°C); identical peripherals, memory, and pinout | Not qualified for extended industrial or automotive under-hood environments requiring -40°C operation | Select R5F21357CNFP only if ambient temperature remains ≥ -20°C; otherwise R5F21357CDFP#50 is required |
| R5F21358CDFP | 64 KB program ROM, 6 KB RAM, same package and peripheral set; no change in clock, ADC, or timer specs | Enables larger firmware images (e.g., embedded GUI stack or OTA update handler) without layout or driver changes | Choose R5F21358CDFP when future firmware growth exceeds 48 KB or additional RAM buffers are needed for communication stacks |
Compared with R5F21357CNFP, R5F21357CDFP#50 adds extended temperature qualification critical for industrial deployment; compared with R5F21358CDFP, it offers cost-optimized memory sizing for stable, mature firmware with minimal overhead.
Availability
R5F21357CDFP#50 is available at Aetrix Electronics and suitable for home appliance motor control, industrial HMI panels, audio equipment power management, and office equipment sensor hubs requiring stable component supply across long production lifecycles.
Supply support for R5F21357CDFP#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, and power solutions for industrial, automotive, and consumer markets.
The R8C/35C Group, including R5F21357CDFP#50, was designed for cost-sensitive, low-power embedded control in white goods and office automation - emphasizing integrated peripherals, robust EMI/EMS performance, and field-upgradable flash.
FAQ
What is the maximum operating frequency and voltage range for R5F21357CDFP#50?
R5F21357CDFP#50 operates at up to 20 MHz when supplied with 2.7–5.5 V, and supports reduced-frequency operation down to 5 MHz at 1.8 V. This dual-voltage/frequency capability enables flexible power-performance trade-offs in battery-powered or wide-input industrial designs. The R5F21357CDFP#50 maintains full peripheral functionality across its entire specified voltage and frequency range.
Does R5F21357CDFP#50 support background operation (BGO) for data flash?
Yes, R5F21357CDFP#50 includes 4 KB of data flash organized in four 1 KB blocks, all supporting background operation (BGO). This allows the R5F21357CDFP#50 to execute application code while simultaneously erasing or programming data flash - essential for logging, calibration storage, or over-the-air firmware updates without system interruption.
How many ADC channels and what resolution does R5F21357CDFP#50 provide?
R5F21357CDFP#50 integrates a 10-bit successive-approximation ADC with 12 input channels (AN0–AN11), including sample-and-hold functionality and sweep mode for automatic channel sequencing. This resolution and channel count support precise sensor interfacing in motor control, temperature monitoring, and power supply feedback loops within the R5F21357CDFP#50's target applications.
What timer resources are available on R5F21357CDFP#50 for motor control?
R5F21357CDFP#50 provides Timer RD (16-bit ×2, 6 PWM outputs), Timer RC (16-bit, 3 PWM outputs), Timer RB (8-bit, programmable waveform generation), and Timer RA (8-bit, pulse output). Together, these enable 3-phase complementary PWM with dead-time insertion, encoder input capture, and precise timing for BLDC or stepper motor commutation - all managed by the R5F21357CDFP#50 without external logic.
Is R5F21357CDFP#50 pin-compatible with other R8C/35C Group members?
Yes, R5F21357CDFP#50 uses the PLQP0052JA-A 52-pin LQFP package shared across the entire R8C/35C Group, including R5F21354CDFP through R5F2135CCDFP. All share identical pin assignments, electrical characteristics, and peripheral register maps - enabling scalable memory selection (16–128 KB ROM) without PCB redesign or firmware porting effort for the R5F21357CDFP#50.
R5F21357CDFP#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:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K 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:
R5F21357CDFP#50 FAQ
1.How can I place an order for R5F21357CDFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21357CDFP#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 R5F21357CDFP#50 reliable?
The price and inventory of R5F21357CDFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21357CDFP#50 is usually 5 days.
3.What payment methods are accepted for R5F21357CDFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21357CDFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21357CDFP#50?
R5F21357CDFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21357CDFP#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 R5F21357CDFP#50?
For technical support, including R5F21357CDFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21357CDFP#50 requirements.
6.How does Aetrix verify that R5F21357CDFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F21357CDFP#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 R5F21357CDFP#50 meets industry standards.
7.What is the process for return or replacement of R5F21357CDFP#50?
All R5F21357CDFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21357CDFP#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 R5F21357CDFP#50 part is unused and in its original packaging.
Return procedure for R5F21357CDFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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