Renesas R5F21336MNFP#V0
- Part No.:
- R5F21336MNFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21336MNFP#V0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 32LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F21336MNFP#V0 from Renesas Electronics is a 16-bit R8C CPU core microcontroller 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 a 16×16→32-bit hardware multiplier, and integrates UART0/1/2, I²C, LIN, 10-bit × 12-channel ADC, and dual 8-bit DACs - deployed in consumer audio equipment and office automation control systems.
For engineers reviewing the R5F21336MNFP#V0 datasheet, R5F21336MNFP#V0 pinout, R5F21336MNFP#V0 application, or R5F21336MNFP#V0 equivalent, key selection criteria include its 32-pin LQFP package, -20°C to +85°C operating range (N version), on-chip voltage detection with POR and selectable reset levels, and real-time clock (Timer RE) with weekday-aware timekeeping.
Technical Context
The R5F21336MNFP#V0 implements the R8C CPU core with 89 fundamental instructions and supports single-chip mode across a 1 Mbyte address space. Its memory map allocates 32 KB program ROM (08000h–0FFFFh), 2.5 KB RAM (00400h–00DFFh), and 4 KB data flash (03000h–03FFFh), all accessible via dedicated SFRs including PM0/PM1, CM0/CM1, and ADINSEL.
Peripheral integration includes three independent serial interfaces (UART0/1/2), with UART2 supporting I²C-bus mode and multiprocessor communication; Timer RC provides 16-bit PWM output on three pins and input capture; and the LIN module leverages Timer RA and UART0 for hardware protocol handling without CPU intervention during frame transmission.
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 | 32 KB flash program ROM, 2.5 KB RAM, 4 KB data flash (1 KB × 4 blocks) with BGO |
| Clock Sources | XIN/XOUT (up to 20 MHz), XCIN/XCOUT (32 kHz), high-speed on-chip oscillator (adjustable), low-speed on-chip oscillator |
| Analog Peripherals | 10-bit × 12-channel ADC with sample-and-hold and sweep mode; dual 8-bit DACs (DA0/DA1) |
| Timers | Timer RA (8-bit, pulse output/event counter), RB (8-bit PWM/one-shot), RC (16-bit, 3-PWM/output compare), RE (8-bit real-time clock with weekday register) |
| Serial Interfaces | UART0/1 (clock sync/UART), UART2 (UART/I²C/multiprocessor), SSU (shared with I²C), hardware LIN module |
| Supply & Temp | VCC = 1.8–5.5 V; operating ambient: -20°C to +85°C (N version); typical current: 6.5 mA @ 5 V/20 MHz, 2.0 µA in stop mode |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pin pitch, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | CMOS I/O port with analog input capability | AN7–AN0 inputs; DA1/DA0 outputs; TRCIOA/TRCTRG shared functions; all support pull-up resistor selection |
| P1_0–P1_7 | CMOS I/O port with key interrupt and analog inputs | KI0–KI3 key inputs; AN8–AN11 analog inputs; TRAIO/TRAO timer I/O; INT1 interrupt source |
| P2_0–P2_2 | CMOS I/O port with trace/debug I/O | TRCIOB/TRCIOD trace signals; INT1 interrupt input; no analog function |
| P3_1, P3_3–P3_5, P3_7 | Multifunction serial and timer I/O | SDA/SCL (I²C), SSO/SSCK/SSI (SSU), RXD2/TXD2/CLK2 (UART2), TRBO (Timer RB output) |
| P4_2, P4_5–P4_7 | Reference, trigger, and clock interface | VREF (ADC/DAC reference), ADTRG (ADC external trigger), XIN/XOUT (main oscillator), XCIN/XCOUT (32 kHz RTC oscillator) |
| RESET, MODE, VCC, VSS, AVCC, AVSS | Power, reset, and configuration | Active-low RESET with internal pull-up; MODE tied to VCC for normal operation; separate analog/digital power domains |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming proceeds concurrently with CPU code execution, enabling seamless firmware updates |
| Hardware LIN Module | Full LIN 2.0/2.1 compliance using Timer RA and UART0 - eliminates software bit-banging and ensures precise timing |
| Real-Time Clock (Timer RE) | Integrated calendar engine with seconds/minutes/hours/weekday registers and output compare for alarm generation |
| Voltage Detection Circuit | Dual-level detection (VDD monitor + selectable VDET0/VDET1) with programmable reset thresholds and POR |
| Low-Power Operating Modes | Wait mode (3.5 µA @ 3 V, 32 kHz XCIN) and stop mode (2.0 µA @ 3 V) enable battery-powered operation |
Applications
| Audio Equipment Control | Office Automation Devices |
|---|---|
Use Scenario: Digital audio receiver managing volume, input selection, and display backlighting via PWM. IC Role / Device Role / Timing Role: Main system controller executing UI logic, driving 8-bit DACs for analog audio output, and generating PWM for LED dimming. Use Value: Integrated dual DACs and 8-bit PWM timers reduce external component count; BGO enables silent firmware updates during playback. | Use Scenario: Multifunction printer subsystem controlling paper feed, sensor monitoring, and panel interface. IC Role / Device Role / Timing Role: Peripheral coordinator handling ADC readings from paper jam sensors, LIN bus communication with main controller, and real-time job timestamping. Use Value: Hardware LIN offloads protocol handling; Timer RE provides accurate job logging timestamps with weekday awareness. |
| Consumer Appliance Interface | Home Automation Hub Node |
Use Scenario: Microwave oven control panel processing keypad inputs, displaying cooking time, and managing relay drivers. IC Role / Device Role / Timing Role: Human-machine interface processor using KI0–KI3 key interrupts, driving 7-segment displays via GPIO, and triggering relays via high-current drive ports. Use Value: Dedicated key input interrupt circuitry reduces polling overhead; 27 high-current drive ports directly interface with LEDs and small relays. | Use Scenario: Smart thermostat node acquiring temperature/humidity data, communicating over I²C to sensor ICs, and reporting via UART to gateway. IC Role / Device Role / Timing Role: Sensor fusion hub performing ADC conversions on multiple channels, managing I²C transactions with external sensors, and maintaining local time via Timer RE. Use Value: 12-channel ADC with sweep mode captures multi-sensor data in one sequence; integrated I²C bus eliminates external level-shifting components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21336MDFP | Same core, memory, and peripherals; extended temperature range (-40°C to +85°C) and D-version qualification | Required for industrial or automotive-adjacent environments where ambient extremes exceed -20°C | Select R5F21336MDFP when operating below -20°C is mandatory; otherwise R5F21336MNFP#V0 suffices for commercial indoor use. |
| R5F21335MNFP | 24 KB program ROM, 2 KB RAM, identical peripheral set and package; lower memory footprint | Suitable for cost-sensitive designs with smaller firmware footprints and reduced data buffering needs | Choose R5F21335MNFP when application code size fits within 24 KB and RAM usage stays ≤2 KB - lowers BOM cost without sacrificing peripheral functionality. |
Compared with R5F21336MDFP, the R5F21336MNFP#V0 trades extended temperature tolerance for lower cost and standard qualification; versus R5F21335MNFP, it delivers +8 KB ROM and +0.5 KB RAM for larger firmware and richer data logging - both alternatives retain identical pinout, clock architecture, and peripheral register mapping.
Availability
R5F21336MNFP#V0 is available at Aetrix Electronics and suitable for audio equipment control, office automation devices, consumer appliance interface, and home automation hub node applications requiring stable component supply and long-term production continuity.
Supply support for R5F21336MNFP#V0 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/33M Group, including R5F21336MNFP#V0, was designed for cost-effective, low-power embedded control in consumer electronics - emphasizing integrated analog peripherals, robust EMI/EMS performance, and simplified firmware update capability via BGO.
FAQ
What is the maximum operating frequency of the R5F21336MNFP#V0?
The R5F21336MNFP#V0 supports a maximum operating frequency of 20 MHz when powered at VCC = 2.7–5.5 V using the XIN clock source. At lower supply voltages (1.8–5.5 V), the maximum frequency is 5 MHz. The on-chip high-speed oscillator is adjustable and usable as an alternative clock source without external components.
Does the R5F21336MNFP#V0 support in-system programming via its serial interfaces?
Yes, the R5F21336MNFP#V0 supports on-chip debug and in-system flash rewriting via its built-in debug interface. While UART0/1/2 can be used for application-level communication, firmware updates are performed through the on-chip debug port - not over UART - ensuring secure and reliable reprogramming without requiring external programmers.
What are the key differences between the R5F21336MNFP#V0 and R5F21336MDFP?
The R5F21336MNFP#V0 and R5F21336MDFP share identical core architecture, memory sizes (32 KB ROM, 2.5 KB RAM), peripherals, and pinout. Their sole difference is operating temperature grade: R5F21336MNFP#V0 is rated for -20°C to +85°C (N version), while R5F21336MDFP extends to -40°C to +85°C (D version) with additional industrial qualification testing.
How does the background operation (BGO) function work in the R5F21336MNFP#V0?
The background operation (BGO) function in the R5F21336MNFP#V0 allows data flash blocks (1 KB × 4) to be erased or programmed while the CPU continues executing code from program ROM. This is managed by dedicated flash control registers (FMRDYIC, FRAx) and enables seamless firmware updates or parameter storage without halting real-time operations.
Can the R5F21336MNFP#V0 generate PWM signals with dead-time control for motor drive applications?
No, the R5F21336MNFP#V0 does not include hardware dead-time insertion or complementary PWM outputs. Timer RC supports 3-pin PWM mode but lacks synchronized complementary channel generation or programmable dead-time logic. For motor control requiring dead-time, external gate drivers or a dedicated motor-control MCU (e.g., RL78/G14) would be required.
R5F21336MNFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/3x/33M
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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:
- 27
- 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:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21336MNFP#V0 FAQ
1.How can I place an order for R5F21336MNFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21336MNFP#V0 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 R5F21336MNFP#V0 reliable?
The price and inventory of R5F21336MNFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21336MNFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F21336MNFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21336MNFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21336MNFP#V0?
R5F21336MNFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21336MNFP#V0 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 R5F21336MNFP#V0?
For technical support, including R5F21336MNFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21336MNFP#V0 requirements.
6.How does Aetrix verify that R5F21336MNFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F21336MNFP#V0 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 R5F21336MNFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F21336MNFP#V0?
All R5F21336MNFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21336MNFP#V0, 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 R5F21336MNFP#V0 part is unused and in its original packaging.
Return procedure for R5F21336MNFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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