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Renesas R5F21344MDFP#V0
- Part No.:
- R5F21344MDFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21344MDFP#V0.pdf
- Description:
- MICROCONTROLLER, 8-BIT, FLASH, R
- Quantity:
- Payment:
- Shipping:
Inventory:518
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Product details
Overview
R5F21344MDFP#V0 from Renesas Electronics is a 16-bit R8C CPU core microcontroller in the R8C/36C Group, designed for embedded control in cost-sensitive consumer and industrial applications. It features 32 KB program ROM, 1 KB × 4 data flash with background operation (BGO), 2.5 KB RAM, 12-channel 10-bit A/D converter, dual 8-bit D/A outputs, LIN hardware module, and operates across −40°C to +85°C.
For engineers reviewing the R5F21344MDFP#V0 datasheet, R5F21344MDFP#V0 pinout, R5F21344MDFP#V0 application, or R5F21344MDFP#V0 equivalent, key selection criteria include its 64-pin LQFP package (PLQP0064KB-A), support for real-time clock (Timer RE), low-power wait/stop modes (down to 2.0 µA), and integrated voltage detection circuitry with programmable reset thresholds.
Technical Context
The R5F21344MDFP#V0 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte, with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash blocks at 03000h–03FFFh.
Peripheral integration includes Timer RD (16-bit ×2, 6-pin PWM, complementary & reset-synchronous modes), UART0/1/2 (with I²C and LIN support via UART0), and DTC with 39 activation sources. Clock options comprise XIN (up to 20 MHz), XCIN (32 kHz), and on-chip high-/low-speed oscillators with selectable dividers.
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, 16×16→32-bit multiplier |
| Memory | 32 KB program ROM, 2.5 KB RAM, 1 KB × 4 data flash with BGO for firmware updates during runtime |
| A/D & D/A | 12-channel 10-bit A/D with sample-and-hold and sweep mode; dual 8-bit D/A outputs (DA0/DA1) |
| Timers | Timer RA/RB (8-bit), RC/RD/RF/RG (16-bit), RE (real-time clock), plus watchdog timer (14-bit with prescaler) |
| Communication | UART0/1/2 (I²C-capable on UART2), SSU, LIN hardware module (using Timer RA + UART0), 39-source DTC |
| Power & Temp | 1.8–5.5 V supply; −40°C to +85°C operating range (D version); 2.0 µA stop-mode current at 3.0 V |
Pinout & Package
Package: 64-pin LQFP (PLQP0064KB-A, 10 mm × 10 mm, 0.5 mm pitch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog input / DA output / Timer RC I/O | AN0–AN7 inputs; DA0/DA1 outputs; TRCIOA–TRCIOD configurable for capture/compare/PWM |
| P1_0–P1_3 | Analog input / Key interrupt / Timer RB output | AN8–AN11 inputs; KI0–KI3 key wake-up; TRBO output for programmable waveform generation |
| P2_0–P2_7 | Timer RD I/O / External trigger | TRDIOA0–TRDIOD1 for 6-pin PWM and three-phase motor control; TRDCLK for external clock sync |
| P3_0–P3_7 | Serial interface / I²C / LIN / Interrupt | UART2/SCL2/SDA2/I²C bus; SSO/SSI/SSCK for synchronous serial; INT1–INT3 sources |
| XIN/XOUT | Main system clock input/output | Supports 20 MHz crystal/resonator; enables high-speed operation with 50 ns instruction timing |
| XCIN/XCOUT | Real-time clock oscillator | 32 kHz crystal connection for Timer RE (RTC) and low-power stop/wait mode timing |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming while CPU executes code-enables seamless firmware field updates |
| Hardware LIN Module | Dedicated LIN 2.0/2.1 support via UART0 + Timer RA-eliminates software bit-banging overhead |
| Low-Power Modes | Wait mode (4.0 µA @ 32 kHz) and stop mode (2.0 µA)-critical for battery-powered appliances |
| Voltage Detection Circuit | Configurable VDD monitor with POR and 3-level detection-ensures reliable reset under brown-out |
| Three-Phase PWM Control | Timer RD supports reset-synchronous and complementary PWM on 6 pins-direct drive for BLDC motors |
Applications
| Home Appliance Motor Control | Industrial Sensor Node |
|---|---|
Use Scenario: Variable-speed control of BLDC compressors in refrigerators and air conditioners. IC Role / Device Role / Timing Role: Primary motor controller executing FOC algorithms using Timer RD's complementary PWM and ADC sampling. Use Value: Integrated 6-pin PWM with dead-time insertion and real-time ADC triggers reduce external component count by ≥3 ICs. |
Use Scenario: Battery-powered environmental sensor hub aggregating temperature, humidity, and CO₂ data. IC Role / Device Role / Timing Role: System-on-chip managing sensor interfaces, low-power RTC wake-up, and UART/I²C data aggregation. Use Value: 2.0 µA stop mode + BGO flash allows multi-year battery life and in-field firmware patching without device recall. |
| Audio Equipment Power Management | Office Equipment Keypad Interface |
Use Scenario: Standby power sequencing and audio amplifier bias control in AV receivers. IC Role / Device Role / Timing Role: Supervisor MCU monitoring VDD, controlling DC-DC enable lines, and generating precise analog bias voltages via DA0/DA1. Use Value: Dual 8-bit D/A outputs with internal reference provide stable ±1% bias voltages without external DACs or op-amps. |
Use Scenario: Matrix keypad scanning and debounce in multifunction printers and copiers. IC Role / Device Role / Timing Role: Dedicated key interrupt handler (KI0–KI3) with built-in debouncing and wake-from-stop capability. Use Value: Hardware key input interrupts reduce CPU load by 90% vs. polling-based solutions and cut wake latency to <10 µs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21366CDFP | Same R8C/36C family, 32 KB ROM, identical pinout and peripheral set; differs only in factory-programmed ROM content | Drop-in replacement where pre-flashed application firmware is required instead of user-programmable ROM | Select R5F21366CDFP if production requires guaranteed factory-programmed code; R5F21344MDFP#V0 supports full user reprogramming. |
| R5F21356CDFA | Same D-version temp grade and 64-pin LQFP package, but uses PLQP0064GA-A variant (different thermal pad layout); shares identical peripherals and memory map | Compatible for PCBs designed for GA-A footprint; requires verification of thermal pad soldering and mechanical clearance | Choose R5F21356CDFA only when redesigning for enhanced thermal dissipation; otherwise retain R5F21344MDFP#V0 for standard PLQP0064KB-A compatibility. |
Compared with R5F21344MDFP#V0, R5F21366CDFP offers identical hardware functionality with factory-programmed firmware, while R5F21356CDFA provides an alternate 64-pin LQFP variant optimized for thermal performance-both require no firmware changes but differ in programming flexibility and mechanical fit.
Availability
R5F21344MDFP#V0 is available at Aetrix Electronics and suitable for home appliance motor control, industrial sensor nodes, audio equipment power management, and office equipment keypad interfaces requiring stable component supply and long-term lifecycle support.
Supply support for R5F21344MDFP#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 specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The R8C/36C Group, including R5F21344MDFP#V0, was engineered for cost-optimized, low-power embedded control in consumer electronics-emphasizing integration of motor control peripherals, communication interfaces, and robust flash reliability.
FAQ
What is the maximum operating frequency of the R5F21344MDFP#V0?
The R5F21344MDFP#V0 supports a maximum external crystal frequency of 20 MHz on the XIN/XOUT pins, enabling minimum instruction execution time of 50 ns at VCC = 2.7–5.5 V. Its on-chip high-speed oscillator can be adjusted to match system requirements without external components.
Does the R5F21344MDFP#V0 support in-system programming of its data flash?
Yes, the R5F21344MDFP#V0 supports background operation (BGO) for data flash, allowing erase and write operations to execute concurrently with CPU program execution. This enables live firmware updates without halting application logic or losing real-time responsiveness.
How many interrupt vectors does the R5F21344MDFP#V0 provide?
The R5F21344MDFP#V0 provides 69 interrupt vectors, including 9 external sources (INT0–INT4, key inputs KI0–KI3), peripheral-triggered interrupts (ADC, timers, UART), and system exceptions (reset, watchdog, oscillation stop). Priority levels are configurable across 7 levels.
What is the function of the MODE pin on the R5F21344MDFP#V0?
The MODE pin on the R5F21344MDFP#V0 must be externally pulled high to VCC via a resistor to select normal single-chip operation mode. It is not used for boot configuration or debug entry-those functions are handled via RESET and on-chip debug circuitry.
Can the R5F21344MDFP#V0 generate three-phase PWM waveforms?
Yes, the R5F21344MDFP#V0's Timer RD module supports reset-synchronous PWM and complementary PWM modes, driving up to six output pins (TRDIOA0–TRDIOD1) with programmable dead-time insertion-enabling direct control of three-phase inverter bridges for BLDC and PMSM motors.
R5F21344MDFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- R8C/3x/34M
- Packaging:
- Bulk
- 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:
- 43
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 1.5K 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:
R5F21344MDFP#V0 FAQ
1.How can I place an order for R5F21344MDFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21344MDFP#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 R5F21344MDFP#V0 reliable?
The price and inventory of R5F21344MDFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21344MDFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F21344MDFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21344MDFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21344MDFP#V0?
R5F21344MDFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21344MDFP#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 R5F21344MDFP#V0?
For technical support, including R5F21344MDFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21344MDFP#V0 requirements.
6.How does Aetrix verify that R5F21344MDFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F21344MDFP#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 R5F21344MDFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F21344MDFP#V0?
All R5F21344MDFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21344MDFP#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 R5F21344MDFP#V0 part is unused and in its original packaging.
Return procedure for R5F21344MDFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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