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Renesas R5F21358CNFP#50
- Part No.:
- R5F21358CNFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21358CNFP#50.pdf
- Description:
- 8BIT MCU R8C35C 64K 52QFP -20TO+
- Quantity:
- Payment:
- Shipping:
Inventory:4,265
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Product details
Overview
R5F21358CNFP#50 from Renesas Electronics is a 16-bit R8C CPU core MCU with 64 KB flash program ROM, 6 KB data flash (4 × 1 KB blocks), and 6 KB RAM, operating at up to 20 MHz (VCC = 2.7–5.5 V) with 50 ns minimum instruction execution time. It integrates UART0/1/2, I²C, SSU, LIN hardware module, 10-bit × 12-channel ADC, dual 8-bit DACs, and six timer units (RA–RE, RD dual-channel), targeting embedded control in consumer audio and office equipment.
For engineers reviewing the R5F21358CNFP#50 datasheet, R5F21358CNFP#50 pinout, R5F21358CNFP#50 application, or R5F21358CNFP#50 equivalent, key selection criteria include its 52-pin LQFP package, -20°C to +85°C N-version temperature rating, background operation (BGO) for data flash, real-time clock (Timer RE), and hardware LIN support using Timer RA and UART0.
Technical Context
The R5F21358CNFP#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), XCIN (32 kHz), high-speed on-chip oscillator (adjustable), and low-speed on-chip oscillator. Power management includes wait mode (3.5 µA @ 3.0 V, f(XCIN)=32 kHz) and stop mode (2.0 µA), with voltage detection circuits for power-on reset and configurable level monitoring.
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 |
| Flash Memory | 64 KB program ROM + 4 KB data flash (1 KB × 4 blocks) with BGO for concurrent read/write |
| RAM | 6 KB on-chip RAM mapped at 00400h–01BFFh, usable as stack and data storage |
| Operating Frequency | 20 MHz max (VCC = 2.7–5.5 V); 5 MHz max (VCC = 1.8–5.5 V) |
| Analog Peripherals | 10-bit ADC (12 channels, sample-and-hold, sweep mode); dual 8-bit DACs (DA0/DA1) |
| Timers | Timer RA/RB (8-bit), RC (16-bit, 4 capture/compare), RD (16-bit × 2, 6-PWM/complementary PWM), RE (8-bit RTC) |
| Communication | UART0/1/2 (UART2 supports I²C mode), SSU, hardware LIN (Timer RA + UART0), I²C bus |
| Supply & Temp | VCC = 1.8–5.5 V; operating ambient: -20°C to +85°C (N version) |
Pinout & Package
Package: 52-pin LQFP (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pin pitch, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | CMOS I/O port with analog input (AN0–AN7) | Configurable as digital I/O or ADC inputs; P0_6/P0_7 also serve DA0/DA1 outputs |
| P1_0–P1_7 | CMOS I/O port with key interrupt (KI0–KI3) and analog input (AN8–AN11) | Supports wake-up from stop mode via key input; AN8–AN11 extend ADC channel count |
| P2_0–P2_7 | CMOS I/O port with TRDIOx timer functions | Primary interface for Timer RD's 8 I/O pins supporting complementary PWM and three-phase waveform generation |
| P3_0–P3_7 | CMOS I/O port with I²C (SCL/SDA), SSU (SSCK/SSI/SSO), and UART2 signals | Shared functionality enables flexible peripheral routing; SCL/SDA pins support standard I²C-bus communication |
| P4_2–P4_7 | VREF input, MODE, RESET, XCIN/XCOUT, XIN/XOUT | VREF sets ADC/DAC reference; MODE selects boot mode; RESET is active-low asynchronous reset |
| P5_6/P5_7 | TRAO output and general-purpose I/O | Timer RA output pin; used for pulse generation or external trigger synchronization |
| P6_0–P6_7 | TREO output, INT2–INT4, UART1/2, CLK1/CLK2 | TREO provides divided clock output for RTC; INT2–INT4 support external interrupt handling with priority levels |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Enables concurrent CPU execution and data flash programming/erasure without halting operation |
| Hardware LIN Module | Integrated LIN 2.0/2.1 support via Timer RA and UART0, eliminating need for external transceiver in basic implementations |
| Real-Time Clock (Timer RE) | 8-bit timer with dedicated seconds/minutes/hours/days-of-week counting and output compare capability |
| Low-Power Modes | Wait mode (3.5 µA) and stop mode (2.0 µA) with 32 kHz XCIN clock retention for RTC and wake-up events |
| Multi-Source DTC | Data Transfer Controller with 33 activation sources and repeat/normal transfer modes reduces CPU overhead for peripheral data movement |
| Voltage Detection | Dual-level voltage monitor (VDD and internal reference) with programmable thresholds for safe brown-out reset and system supervision |
Applications
| Audio Equipment Control | Office Equipment Motor Control |
|---|---|
Use Scenario: Digital audio receiver managing volume, source selection, and display backlight timing. IC Role / Device Role / Timing Role: Main system controller executing UI logic, decoding IR commands, driving DACs for analog output, and synchronizing display updates via Timer RE. Use Value: Integrated dual 8-bit DACs eliminate external audio DAC ICs; hardware LIN enables communication with remote IR receivers or display modules. | Use Scenario: Laser printer engine controller managing stepper motor sequencing, toner heating, and paper feed timing. IC Role / Device Role / Timing Role: Real-time motion controller using Timer RD's complementary PWM to drive H-bridge motor drivers and Timer RE for precise job timing. Use Value: Six PWM outputs from Timer RD support full three-phase motor control; 10-bit ADC monitors heater thermistor for closed-loop thermal regulation. |
| Consumer Appliance UI Panel | Industrial Sensor Hub Interface |
Use Scenario: Microwave oven control panel detecting keypad presses, managing cooking timers, and driving LED indicators. IC Role / Device Role / Timing Role: Keypad scanner and state machine executor using KI0–KI3 interrupts and Timer RB for programmable one-shot delays. Use Value: Dedicated key input interrupt pins reduce polling overhead; 47 high-current drive ports directly sink LED loads without external drivers. | Use Scenario: HVAC sensor node aggregating temperature, humidity, and airflow data before transmitting via UART to central controller. IC Role / Device Role / Timing Role: Sensor signal conditioner and protocol translator using ADC for analog sensors and UART2 in I²C mode for digital sensor interfacing. Use Value: 12-channel ADC supports multiple analog sensors; I²C mode on UART2 allows direct connection to digital temperature/humidity ICs without additional bus controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21358CDFP | Same core, memory, and peripherals; rated for -40°C to +85°C industrial temperature range | Required for outdoor or uncontrolled-ambient deployments where extended temperature tolerance is mandatory | Select R5F21358CDFP when operating environment exceeds -20°C lower limit of R5F21358CNFP#50 |
| R5F21357CNFP | 48 KB program ROM, 4 KB RAM, identical 52-pin LQFP package and peripheral set | Suitable for cost-sensitive designs with reduced firmware footprint and smaller data buffer requirements | Choose R5F21357CNFP when application firmware fits within 48 KB and 4 KB RAM suffices for runtime variables |
Compared with R5F21358CDFP, the R5F21358CNFP#50 offers identical functionality at commercial temperature grade, reducing cost where extended thermal range is unnecessary; versus R5F21357CNFP, it provides 16 KB more program ROM and 2 KB more RAM for complex UI stacks or larger control algorithms without changing PCB layout.
Availability
R5F21358CNFP#50 is available at Aetrix Electronics and suitable for audio equipment control, office equipment motor control, consumer appliance UI panels, and industrial sensor hub interfaces requiring stable component supply across production lifecycles.
Supply support for R5F21358CNFP#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 Corporation is a global semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and consumer markets.
The R8C/35C Group, including R5F21358CNFP#50, was designed for cost-effective, low-power embedded control in consumer electronics-emphasizing integration of analog peripherals, communication interfaces, and real-time timing functions in compact LQFP packages.
FAQ
What is the maximum operating frequency of the R5F21358CNFP#50 and under what supply conditions?
The R5F21358CNFP#50 operates at a maximum frequency of 20 MHz when supplied with VCC = 2.7 V to 5.5 V. At lower supply voltages (1.8 V to 5.5 V), the maximum supported frequency is reduced to 5 MHz to ensure reliable operation and meet timing specifications across the full voltage range.
Does the R5F21358CNFP#50 support background operation for data flash programming?
Yes, the R5F21358CNFP#50 supports Background Operation (BGO) for its 1 KB × 4 data flash blocks. This allows the CPU to continue executing code from program ROM while simultaneously erasing or programming data flash, enabling seamless firmware updates and parameter storage without system interruption.
How many analog-to-digital converter channels does the R5F21358CNFP#50 provide, and what is their resolution?
The R5F21358CNFP#50 integrates a 10-bit successive-approximation ADC with 12 input channels (AN0–AN11). It supports sample-and-hold functionality and sweep mode for automatic sequential conversion, making it suitable for multi-sensor monitoring in appliances and industrial controls.
What peripheral interfaces are available on the R5F21358CNFP#50 for connecting to external sensors or displays?
The R5F21358CNFP#50 provides UART0/1/2 (with UART2 supporting I²C-bus mode), an independent I²C bus interface, SSU for synchronous serial communication, and hardware LIN using Timer RA and UART0-enabling direct connectivity to temperature sensors, OLED displays, IR receivers, and automotive-grade peripherals without external protocol translators.
Is the R5F21358CNFP#50 pin-compatible with other members of the R8C/35C Group?
Yes, all R8C/35C Group MCUs-including R5F21354CNFP through R5F21358CNFP and R5F2135ACNFP-share the identical 52-pin LQFP (PLQP0052JA-A) package and pin assignment. Firmware and hardware designs can scale across memory variants without PCB revision, provided peripheral usage aligns with the specific part's feature set.
R5F21358CNFP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- R8C/3x/35C
- Packaging:
- Tape & Reel (TR)
- 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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 6K 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:
R5F21358CNFP#50 FAQ
1.How can I place an order for R5F21358CNFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21358CNFP#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 R5F21358CNFP#50 reliable?
The price and inventory of R5F21358CNFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21358CNFP#50 is usually 5 days.
3.What payment methods are accepted for R5F21358CNFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21358CNFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21358CNFP#50?
R5F21358CNFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21358CNFP#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 R5F21358CNFP#50?
For technical support, including R5F21358CNFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21358CNFP#50 requirements.
6.How does Aetrix verify that R5F21358CNFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F21358CNFP#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 R5F21358CNFP#50 meets industry standards.
7.What is the process for return or replacement of R5F21358CNFP#50?
All R5F21358CNFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21358CNFP#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 R5F21358CNFP#50 part is unused and in its original packaging.
Return procedure for R5F21358CNFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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