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Renesas R5F21344MNFP#50
- Part No.:
- R5F21344MNFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21344MNFP#50.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,542
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Product details
Overview
R5F21344MNFP from Renesas Electronics is a 16-bit R8C CPU core MCU with 16 KB program flash, 1.5 KB RAM, and 4 KB data flash (1 KB × 4 blocks) supporting background operation (BGO). It delivers 50 ns minimum instruction execution at 20 MHz (VCC = 2.7–5.5 V), integrates dual 8-bit timers (RA/RB), a 16-bit timer RC, dual 16-bit timer RD units, real-time clock (RE), 10-bit × 12-channel ADC, dual 8-bit DACs, LIN hardware module, and operates from −20°C to +85°C in 48-pin LQFP - used in motor control for home appliance compressors.
For engineers reviewing the R5F21344MNFP datasheet, R5F21344MNFP pinout, R5F21344MNFP application, or R5F21344MNFP equivalent, key selection considerations include its N-version temperature grade, 48-pin PLQP0048KB-A package, BGO-enabled data flash for firmware updates during runtime, integrated LIN physical layer support via UART0+TimerRA, and low-power stop mode consuming 2.0 µA.
Technical Context
The R5F21344MNFP 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.
It features four independent clock sources: XIN/XOUT (up to 20 MHz), XCIN/XCOUT (32 kHz), high-speed on-chip oscillator (adjustable), and low-speed on-chip oscillator - all selectable via system clock control registers CM0/CM1. Power management includes wait mode (3.5 µA @ 3.0 V, fXCIN = 32 kHz) and stop mode (2.0 µA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 16×16→32-bit multiplier, and MAC unit - enables efficient motor control math without software emulation. |
| Memory | 16 KB program flash, 1.5 KB RAM, 4 KB data flash (1 KB × 4 blocks) with BGO - allows safe firmware patching while application runs. |
| Timing Performance | 50 ns min instruction time at 20 MHz (VCC = 2.7–5.5 V); 200 ns at 5 MHz (VCC = 1.8–5.5 V) - supports responsive real-time control loops. |
| Analog Peripherals | 10-bit × 12-channel ADC with sample-and-hold and sweep mode; dual 8-bit DACs (DA0/DA1) - enables closed-loop sensor feedback and analog actuator drive. |
| Communication | UART0/1/2 (UART2 supports I²C-bus mode), SSU, LIN hardware module (TimerRA + UART0), 33-source DTC - reduces host CPU load in multi-peripheral systems. |
| Power & Temp | Operating voltage 1.8–5.5 V; −20°C to +85°C (N version); 2.0 µA stop mode current - suitable for battery-backed or energy-sensitive embedded appliances. |
| Package | 48-pin LQFP, PLQP0048KB-A (7 mm × 7 mm, 0.5 mm pitch) - standard surface-mount footprint compatible with automated assembly. |
Pinout & Package
48-pin LQFP package (PLQP0048KB-A), 7 mm × 7 mm body, 0.5 mm pin pitch. Pin functions support multiplexed peripheral assignment via software configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | CMOS I/O port / AN0–AN7 / DA1/DA0 | Primary analog input bank (12-bit capable) and dual DAC outputs - direct connection to sensors and analog actuators. |
| P1_0–P1_3 | CMOS I/O port / AN8–AN11 / KI0–KI3 | Extended analog inputs and key interrupt pins - supports touch panel or mechanical button interfaces. |
| P2_0–P2_7 | CMOS I/O port / TRDIOx0/TRDIOx1 | Dual 16-bit timer RD I/O channels - drives 6-pin complementary PWM for 3-phase motor gate drivers. |
| P3_3–P3_5, P3_7 | I²C-bus / SSU / UART2 / SCL2/SDA2 | Shared I²C/SSU/UART2 pins - enables flexible communication topology with single-pin reuse. |
| XIN/XOUT | External crystal oscillator input/output | Supports precise 20 MHz system clock; optional ceramic resonator or external clock source. |
| XCIN/XCOUT | 32 kHz crystal oscillator input/output | Provides accurate real-time clock base for Timer RE and low-power wake-up timing. |
| RESET | Active-low reset input | Hardware reset initiation; internal power-on reset and voltage detection ensure reliable boot. |
| MODE | Mode select input | Must be tied to VCC via resistor to enable single-chip mode - required for normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming proceeds concurrently with CPU execution - enables seamless field firmware updates without halting control tasks. |
| Hardware LIN Module | Integrated LIN 2.0/2.1 physical layer using UART0 + TimerRA - eliminates external transceiver for cost-sensitive automotive HVAC or appliance sub-systems. |
| Dual 16-bit Timer RD Units | Each supports 6-pin complementary PWM with dead-time insertion, reset-synchronous and triangular/sawtooth modulation - ideal for BLDC motor commutation. |
| Voltage Detection Circuit | Configurable voltage monitor with 3 detection levels (VDD, VDET0, VDET1) and power-on reset - ensures robust brown-out recovery in unregulated power environments. |
| 33-Source Data Transfer Controller (DTC) | Offloads peripheral-to-memory transfers (e.g., ADC scan → RAM buffer) without CPU intervention - improves deterministic latency in sensor acquisition. |
Applications
| Refrigeration Compressor Control | Office Equipment Motor Drive |
|---|---|
Use Scenario: Closed-loop speed and torque regulation of inverter-driven compressors in household refrigerators. IC Role / Device Role / Timing Role: Primary motor controller executing FOC algorithms, sampling current/voltage via 10-bit ADC, generating 6-pin complementary PWM via Timer RD, and managing thermal protection. Use Value: Integrated 16-bit timers with dead-time control and BGO data flash allow real-time motor control and over-the-air firmware updates for efficiency optimization. |
Use Scenario: Precision stepper/servo motor sequencing in multifunction printers and scanners. IC Role / Device Role / Timing Role: Motion controller coordinating step pulses, encoder feedback capture (Timer RC input capture), and position correction via DAC outputs. Use Value: Dual 16-bit timers with input capture and programmable waveform generation eliminate external timing ICs, reducing BOM count. |
| Audio Equipment Power Management | Consumer Appliance User Interface |
Use Scenario: Standby power supervision and audio amplifier bias sequencing in AV receivers. IC Role / Device Role / Timing Role: System supervisor monitoring VCC with voltage detection circuit, controlling power rails via GPIO, and waking main processor via INT0 trigger. Use Value: 2.0 µA stop mode and configurable voltage monitors enable ultra-low standby consumption compliant with Energy Star requirements. |
Use Scenario: Keypad scanning, LED display driving, and buzzer tone generation in microwave ovens and washing machines. IC Role / Device Role / Timing Role: UI controller reading KI0–KI3 key interrupts, driving LEDs via high-current I/O ports, and generating tones using Timer RB PWM output. Use Value: 43 high-current drive ports and dedicated key interrupt inputs simplify front-panel interface design without external shift registers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21344MDFP | D-version (-40°C to +85°C) with identical memory, peripherals, and pinout - differs only in extended industrial temperature rating. | Suitable for automotive cabin modules or outdoor-rated appliances requiring wider ambient tolerance. | Select R5F21344MDFP when operating below −20°C is required; otherwise R5F21344MNFP suffices for indoor consumer use. |
| R5F21345MNFP | 24 KB program ROM, 2 KB RAM, same 4 KB data flash and peripherals - higher code capacity without package or pinout change. | Preferred for feature-rich firmware (e.g., enhanced communication stacks or predictive maintenance algorithms) where 16 KB is insufficient. | Choose R5F21345MNFP when additional ROM headroom is needed; both share identical toolchain and migration path. |
Compared with R5F21344MDFP and R5F21345MNFP, the R5F21344MNFP offers optimal cost/performance balance for temperature-stable consumer applications, trading extended temp range and extra ROM for lower unit cost while retaining full peripheral compatibility.
Availability
R5F21344MNFP is available at Aetrix Electronics and suitable for refrigerator compressor control, office equipment motor drive, and audio equipment power management requiring stable component supply across long production lifecycles.
Supply support for R5F21344MNFP 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 automotive, industrial, and IoT markets.
The R8C/34M Group, including R5F21344MNFP, was designed for cost-sensitive, real-time embedded control in consumer appliances - emphasizing integrated analog peripherals, low-power operation, and motor control timing precision.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R5F21344MNFP?
The R5F21344MNFP supports up to 20 MHz operation with VCC = 2.7–5.5 V, achieving a 50 ns minimum instruction execution time. At reduced frequency (5 MHz), it operates down to 1.8 V, enabling flexibility in power-constrained designs. This dual-voltage/frequency capability allows the R5F21344MNFP to serve both high-performance and ultra-low-power modes within the same application.
Does the R5F21344MNFP support in-circuit programming and debugging?
Yes, the R5F21344MNFP includes on-chip debug functionality and supports on-board flash rewrite via dedicated debug interface pins. Its program security features - ROM code protect and ID code check - prevent unauthorized access during development and production. These capabilities make the R5F21344MNFP suitable for secure firmware deployment and iterative engineering validation.
How does the Background Operation (BGO) function work in the R5F21344MNFP data flash?
The R5F21344MNFP's data flash (1 KB × 4 blocks) supports BGO, allowing erase and write operations to proceed asynchronously while the CPU executes application code. This is implemented via dedicated flash control registers and interrupt flags (e.g., FMRDYIC), enabling safe firmware updates or parameter storage without disrupting real-time control tasks - a critical feature for the R5F21344MNFP in appliance field service scenarios.
What peripheral resources does the R5F21344MNFP provide for motor control applications?
The R5F21344MNFP integrates two 16-bit Timer RD units (each with 4 capture/compare registers and 6 PWM output pins), a 16-bit Timer RC, dual 8-bit timers (RA/RB), and a real-time clock (RE). Combined with its 10-bit × 12-channel ADC and dual 8-bit DACs, these peripherals enable full-featured BLDC or PMSM motor control - including three-phase complementary PWM generation, current sensing, and position feedback - all within a single R5F21344MNFP device.
Is the R5F21344MNFP pin-compatible with other members of the R8C/34M Group?
Yes, all R8C/34M Group MCUs - including R5F21344MNFP, R5F21345MNFP, and R5F21346MNFP - share the identical 48-pin PLQP0048KB-A package and pin assignment. Memory size differences (16/24/32 KB ROM) and minor feature variants (e.g., D vs. N temperature grade) do not affect pinout, enabling drop-in upgrades or design reuse across product tiers using the same R5F21344MNFP PCB layout.
R5F21344MNFP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- R8C/3x/34M
- 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:
- 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:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21344MNFP#50 FAQ
1.How can I place an order for R5F21344MNFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21344MNFP#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 R5F21344MNFP#50 reliable?
The price and inventory of R5F21344MNFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21344MNFP#50 is usually 5 days.
3.What payment methods are accepted for R5F21344MNFP#50?
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R5F21344MNFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21344MNFP#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 R5F21344MNFP#50?
For technical support, including R5F21344MNFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21344MNFP#50 requirements.
6.How does Aetrix verify that R5F21344MNFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F21344MNFP#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 R5F21344MNFP#50 meets industry standards.
7.What is the process for return or replacement of R5F21344MNFP#50?
All R5F21344MNFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21344MNFP#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 R5F21344MNFP#50 part is unused and in its original packaging.
Return procedure for R5F21344MNFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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