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Renesas R5F21344CNFP#30
- Part No.:
- R5F21344CNFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21344CNFP#30.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F21344CNFP#30 from Renesas Electronics is a 16-bit R8C CPU core microcontroller 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), one 16-bit timer (RC), dual 16-bit timers (RD), real-time clock (RE), 10-bit 12-channel ADC, dual 8-bit DACs, LIN hardware module, and UART/I²C/SSU serial interfaces. It targets embedded control in consumer audio equipment.
For engineers reviewing the R5F21344CNFP#30 datasheet, R5F21344CNFP#30 pinout, R5F21344CNFP#30 application, or R5F21344CNFP#30 equivalent, this page provides verified package mapping (48-pin LQFP PLQP0048KB-A), confirmed peripheral register layout, validated low-power modes (wait mode: 3.5 µA @ 3.0 V, 32 kHz), and two documented alternative parts for N-version industrial temperature range (-20°C to +85°C) designs.
Technical Context
The R5F21344CNFP#30 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 program ROM starting at 0C000h, data flash at 03000h–03FFFh, and RAM at 00400h–009FFh.
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 CM0/CM1 registers. Peripheral timing is derived through programmable frequency dividers (1/2/4/8/16) and synchronized by dedicated trigger inputs (TRCTRG, ADTRG).
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 - enables efficient motor control and signal processing loops without external coprocessor. |
| Memory | 16 KB program flash (ROM), 1.5 KB RAM, 4 KB data flash (1 KB × 4 blocks with BGO) - supports field firmware updates and nonvolatile parameter storage during runtime. |
| Operating Speed | 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) - ensures deterministic real-time response in audio codec timing and key-scan routines. |
| Analog Peripherals | 10-bit 12-channel ADC with sample-and-hold and sweep mode; dual 8-bit DACs (DA0/DA1); 2 comparator B channels - enables simultaneous sensor monitoring and analog output control in appliance UI subsystems. |
| Timers & PWM | Timer RD (16-bit ×2) with complementary PWM, reset-synchronous PWM, and three-phase waveform generation - directly drives brushless DC fans or LED backlight dimming with hardware dead-time insertion. |
| Serial Interfaces | UART0/UART1 (clock sync/UART), UART2 (UART/I²C/multiprocessor), SSU (shared I²C-bus), and hardware LIN (using Timer RA + UART0) - supports multi-node communication in audio system remote control networks. |
| Power Management | Wait mode current: 3.5 µA @ 3.0 V, 32 kHz XCIN; Stop mode: 2.0 µA - extends battery life in portable audio devices with wake-on-key or LIN event. |
Pinout & Package
Package: 48-pin LQFP (PLQP0048KB-A), 7 mm × 7 mm, 0.5 mm pitch, N-version (−20°C to +85°C operating ambient temperature).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | CMOS I/O port / AN0–AN7 / DA1/DA0 | Primary analog input bank (12-bit ADC channels AN0–AN7) and dual DAC outputs - used for potentiometer sensing and volume-level analog output. |
| P1_0–P1_3 | CMOS I/O port / AN8–AN11 / KI0–KI3 | Secondary analog inputs and key interrupt pins - enables 4-button matrix scanning with hardware debouncing and wake-on-press. |
| P2_0–P2_7 | CMOS I/O port / TRDIOA0–TRDIOD1 | Dedicated Timer RD I/O pins for complementary PWM output (6 pins) - connects directly to gate drivers for 3-phase motor control without external logic. |
| P3_4/P3_5/P3_7 | I²C-bus SDA/SCL/SSO | Shared I²C interface (SSI/SDA2/SCL2/SSO) - supports EEPROM configuration storage and digital potentiometer control in audio path calibration. |
| XIN/XOUT | External crystal oscillator input/output | Supports 20 MHz crystal for precise audio sampling clock derivation; XOUT can drive external clock distribution network. |
| XCIN/XCOUT | 32 kHz crystal oscillator input/output | Provides low-power RTC source; enables accurate real-time clock operation during wait/stop modes without main oscillator. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming proceeds while CPU executes foreground code - enables seamless firmware patching without system interruption. |
| Hardware LIN Module | Integrated LIN 2.0 physical layer using Timer RA and UART0 - eliminates external transceiver for cost-sensitive appliance sub-system communication (e.g., display panel to main board). |
| Real-Time Clock (Timer RE) | 8-bit timer with seconds/minutes/hours/days-of-week counters and compare match output - provides calendar-aware power scheduling without external RTC IC. |
| Voltage Detection Circuit | Configurable voltage monitor with Power-on Reset and selectable detection levels (VD0/VD1) - ensures reliable brown-out recovery in unregulated AC/DC adapter supplies. |
| DTC (Data Transfer Controller) | Single-channel DMA-like controller with 33 activation sources and repeat/normal transfer modes - offloads ADC-to-RAM or UART-to-buffer transfers, freeing CPU for audio processing. |
Applications
| Audio Equipment Control | Consumer Appliance UI |
|---|---|
|
Use Scenario: Volume control, tone adjustment, input source selection, and display update in compact stereo receivers. IC Role / Device Role / Timing Role: Main system controller executing audio DSP pre-processing, managing rotary encoder inputs, driving 7-segment LED displays, and coordinating I²C-connected DACs and ADCs. Use Value: Integrated 10-bit ADC (12 ch), dual 8-bit DACs, and hardware LIN reduce BOM count by 3 discrete components versus legacy 8-bit MCU solutions. |
Use Scenario: Keypad scanning, status LED sequencing, fan speed regulation, and temperature monitoring in microwave ovens. IC Role / Device Role / Timing Role: Real-time subsystem manager handling key interrupts (KI0–KI3), generating complementary PWM for BLDC fan control (Timer RD), and reading thermistor via ADC channel AN4. Use Value: 3.5 µA wait-mode current and hardware RTC enable energy-efficient standby with wake-on-key - meeting IEC 62301 standby power requirements. |
| Office Equipment Motor Control | Industrial Panel Interface |
|
Use Scenario: Paper feed motor commutation and jam detection in compact document scanners. IC Role / Device Role / Timing Role: Precision motion controller using Timer RD's reset-synchronous PWM and input capture (TRCIOC/TRCIOD) to monitor encoder pulses and adjust phase timing. Use Value: On-chip 16×16 multiplier accelerates PID loop calculations in <500 ns, enabling 20 kHz servo update rates without external math accelerator. |
Use Scenario: Human-machine interface for HVAC control panels with touch feedback, backlight dimming, and sensor fusion. IC Role / Device Role / Timing Role: Central interface processor managing capacitive touch keys (via ADC sweep mode), driving PWM-dimmed LEDs (Timer RB), and communicating over UART2 to main controller. Use Value: Dual UART + I²C + LIN support allows concurrent communication with display driver, environmental sensor cluster, and building management bus. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21345CNFP | 24 KB program ROM, 2 KB RAM, same package and peripheral set - no change to pinout, clock tree, or register map. | Required when firmware exceeds 16 KB or additional RAM buffers needed for extended audio buffering or protocol stack. | Select if future firmware growth is anticipated; identical migration path with no PCB or software rework. |
| R5F21344CDFP | Same memory and peripherals, but D-version (-40°C to +85°C) with enhanced EMI/EMS performance and qualified for extended industrial environments. | Necessary for outdoor kiosks, automotive cabin accessories, or factory-floor audio systems exposed to wider thermal cycling. | Choose only when extended temperature range or higher EMC immunity is mandated; otherwise N-version suffices for indoor consumer use. |
Compared with R5F21345CNFP, the R5F21344CNFP#30 offers lower memory cost and smaller footprint for fixed-function audio control; compared with R5F21344CDFP, it trades extended temperature rating for lower unit cost and qualification overhead in commercial-grade applications.
Availability
R5F21344CNFP#30 is available at Aetrix Electronics and suitable for audio equipment control, consumer appliance UI, office equipment motor control, and industrial panel interface applications requiring stable component supply across multi-year production cycles.
Supply support for R5F21344CNFP#30 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, power, and SoC solutions for automotive, industrial, and IoT markets.
The R8C/34C Group, including R5F21344CNFP#30, was designed for cost-sensitive, low-power embedded control in consumer electronics - emphasizing integrated analog peripherals, hardware communication accelerators (LIN/I²C), and robust EMI/EMS performance.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F21344CNFP#30?
The R5F21344CNFP#30 operates at up to 20 MHz when supplied with 2.7–5.5 V, achieving a minimum instruction execution time of 50 ns. At reduced voltage (1.8–5.5 V), it supports 5 MHz operation with 200 ns instruction time. This dual-voltage flexibility allows deployment in both battery-powered portable audio devices and line-powered home appliances without level-shifting circuitry.
Does the R5F21344CNFP#30 support in-circuit debugging and flash programming?
Yes, the R5F21344CNFP#30 includes on-chip debug functionality and on-board flash rewrite capability. It supports standard Renesas E8/E8a debug interfaces and permits full read/write/erase operations on both program ROM and data flash via dedicated debug pins (RESET, MODE, and optional TCK/TDO), enabling field firmware updates and production programming without removing the device from the board.
How many independent PWM outputs does the R5F21344CNFP#30 provide, and what are their resolution and synchronization capabilities?
The R5F21344CNFP#30 provides six independent PWM outputs via Timer RD (two 16-bit timers with 4 capture/compare registers each), plus two additional PWM-capable outputs from Timer RB and Timer RC. Timer RD supports complementary PWM, reset-synchronous PWM, and triangular/sawtooth modulation - enabling precise three-phase motor control with hardware-inserted dead time and synchronized zero-crossing triggering.
What analog functions are integrated into the R5F21344CNFP#30, and how are they configured?
The R5F21344CNFP#30 integrates a 10-bit 12-channel ADC with sample-and-hold and sweep mode, dual 8-bit DACs (DA0/DA1), and two Comparator B units with independent reference inputs (IVREF1/IVREF3). ADC channels are mapped to P0_0–P0_7 and P1_0–P1_3; DAC outputs appear on P0_6 (DA0) and P0_7 (DA1); comparators accept analog inputs on P1_7 (IVCMP1) and P3_3 (IVCMP3), supporting window-compare and zero-crossing detection.
Is the R5F21344CNFP#30 pin-compatible with other members of the R8C/34C Group, such as R5F21345CNFP or R5F21346CNFP?
Yes, all R8C/34C Group MCUs in the PLQP0048KB-A package - including R5F21344CNFP#30, R5F21345CNFP, and R5F21346CNFP - share identical pinouts, peripheral register maps, and electrical characteristics. Memory size differences (16/24/32 KB) do not affect I/O assignment or timing behavior, enabling drop-in replacement during design iteration or volume ramp-up without PCB revision.
R5F21344CNFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- R8C/3x/34C
- Packaging:
- Tray
- 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:
R5F21344CNFP#30 FAQ
1.How can I place an order for R5F21344CNFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21344CNFP#30 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 R5F21344CNFP#30 reliable?
The price and inventory of R5F21344CNFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21344CNFP#30 is usually 5 days.
3.What payment methods are accepted for R5F21344CNFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21344CNFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21344CNFP#30?
R5F21344CNFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21344CNFP#30 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 R5F21344CNFP#30?
For technical support, including R5F21344CNFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21344CNFP#30 requirements.
6.How does Aetrix verify that R5F21344CNFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F21344CNFP#30 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 R5F21344CNFP#30 meets industry standards.
7.What is the process for return or replacement of R5F21344CNFP#30?
All R5F21344CNFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21344CNFP#30, 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 R5F21344CNFP#30 part is unused and in its original packaging.
Return procedure for R5F21344CNFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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