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Renesas R5F21346MDFP#30
- Part No.:
- R5F21346MDFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21346MDFP#30.pdf
- Description:
- 16BIT MCU R8C/34M ROM32K/RAM2.5K
- Quantity:
- Payment:
- Shipping:
Inventory:1,799
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Product details
Overview
R5F21346MDFP#30 from Renesas Electronics is a 16-bit R8C CPU core MCU 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 43 CMOS I/O ports with pull-up select, and integrates UART0/1/2, I²C, LIN, 10-bit × 12-channel ADC, dual 8-bit DACs, and six timer modules - used in industrial appliance control and audio subsystems.
For engineers reviewing the R5F21346MDFP#30 datasheet, R5F21346MDFP#30 pinout, R5F21346MDFP#30 application, or R5F21346MDFP#30 equivalent, key selection criteria include its -40°C to +85°C D-version temperature rating, 48-pin LQFP package (PLQP0048KB-A), on-chip debug support, and hardware LIN module implementation using Timer RA and UART0.
Technical Context
The R5F21346MDFP#30 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 oscillator (up to 20 MHz), XCIN 32 kHz crystal, high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator. Power modes include standard operating, wait (3.5 µA @ 3.0 V, f(XCIN)=32 kHz), and stop (2.0 µA @ 3.0 V).
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 | 32 KB program ROM + 4 KB data flash (1 KB × 4 blocks) with BGO for firmware updates without halting execution |
| RAM | 2.5 KB on-chip RAM mapped from 00400h to 00DFFh, usable as stack area |
| Operating Voltage | 1.8–5.5 V supply range; supports 5 MHz operation down to 1.8 V for low-power applications |
| Temperature Range | -40°C to +85°C (D version), validated for industrial ambient conditions |
| Package | 48-pin LQFP, PLQP0048KB-A (7 mm × 7 mm, 0.5 mm pitch) |
| Peripherals | UART0/1/2, I²C-bus (shared with SSU), hardware LIN (Timer RA + UART0), 10-bit × 12-channel ADC, dual 8-bit DACs |
Pinout & Package
48-pin LQFP package (PLQP0048KB-A), 7 mm × 7 mm body, 0.5 mm pin pitch. Pin functions support multiplexing via software configuration per Table 1.4–1.7 of R01DS0022EJ0100.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog input / DA output / Timer RC I/O | AN0–AN7 inputs for 10-bit ADC; DA0/DA1 outputs for dual DAC; TRCIOx pins for capture/compare |
| P1_0–P1_7 | Analog input / Key interrupt / Serial I/O | AN8–AN11 + KI0–KI3 for keypad scan; TRCCLK/TXD0/RXD0 for UART0 and timer clocking |
| P2_0–P2_7 | Timer RD I/O / External trigger | TRDIOA0–TRDIOD1 for 6-pin PWM generation; TRDCLK for external clock input to Timer RD |
| P3_3–P3_7 | I²C / SSU / UART2 / Interrupt | Shared SCL2/SDA2 (I²C), SSI/SSCK/SSO (SSU), RXD2/TXD2 (UART2), and INT2/INT3/INT4 |
| XIN/XOUT | Main system clock input/output | Supports ceramic resonator or crystal up to 20 MHz; enables high-speed CPU execution |
| XCIN/XCOUT | Real-time clock source | 32 kHz crystal interface for Timer RE and low-power wait/stop mode timing |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming during normal CPU operation, enabling seamless firmware field updates |
| Hardware LIN Module | Dedicated LIN 2.0/2.1 support via Timer RA and UART0 - no CPU overhead for protocol framing or checksum |
| 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 |
| Peripheral Integration | Six independent timers (RA–RE + dual RD), three UARTs, I²C, SSU, 12-channel ADC, dual DACs - reduces external component count |
| Voltage Detection | Configurable voltage detection levels (VDD monitor 0/1) with power-on reset and selectable detection thresholds |
Applications
| Home Appliance Motor Control | Audio System Subcontroller |
|---|---|
Use Scenario: Fan speed regulation and safety monitoring in HVAC systems with thermal feedback and user interface. IC Role / Device Role / Timing Role: Main motor control MCU executing PID loops, driving PWM outputs via Timer RD, and managing LIN communication with master controller. Use Value: Integrated 6-pin complementary PWM and hardware LIN reduce BOM cost and PCB footprint while ensuring deterministic real-time response. | Use Scenario: Volume, tone, and input source management in multi-source audio receivers with IR remote and display interface. IC Role / Device Role / Timing Role: Peripheral manager handling ADC-based potentiometer reads, DAC-based analog output, UART-based IR decoding, and I²C-based display control. Use Value: Dual 8-bit DACs and 12-channel ADC enable simultaneous analog signal conditioning without external converters. |
| Industrial Sensor Node | Office Equipment Power Management |
Use Scenario: Environmental sensing node aggregating temperature, humidity, and voltage telemetry for gateway transmission. IC Role / Device Role / Timing Role: Data acquisition MCU performing periodic ADC sweeps, storing calibrated values in data flash, and waking periodically via Timer RE to transmit over UART. Use Value: BGO-enabled data flash allows logging calibration constants and sensor history without interrupting measurement cycles. | Use Scenario: Standby power sequencing and status reporting in multifunction printers with sleep/wake transitions. IC Role / Device Role / Timing Role: System supervisor monitoring VDD, detecting button presses (KI0–KI3), controlling power rails via GPIO, and maintaining RTC time in stop mode. Use Value: 2.0 µA stop-mode current with retained 32 kHz RTC ensures accurate wake scheduling and low quiescent power. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21346MNFP | Same core, peripherals, and memory; rated for -20°C to +85°C (N version) | Not qualified for extended industrial temperature environments | Select when operating ambient stays above -20°C and cost sensitivity outweighs temperature margin |
| R5F21345MDFP | Identical D-version rating and package; 24 KB program ROM, 2 KB RAM | Lower code capacity limits complex control algorithms or protocol stacks | Choose when application firmware fits within 24 KB and data flash requirements remain unchanged |
Compared with R5F21346MNFP and R5F21345MDFP, the R5F21346MDFP#30 uniquely combines full industrial temperature range (-40°C to +85°C), maximum 32 KB program ROM, and 2.5 KB RAM - making it optimal for thermally demanding embedded control where firmware scalability and reliability are critical.
Availability
R5F21346MDFP#30 is available at Aetrix Electronics and suitable for home appliance motor control, audio system subcontrollers, and industrial sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F21346MDFP#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/34M Group, including R5F21346MDFP#30, was designed for cost-sensitive, resource-constrained embedded control applications requiring robust peripheral integration, low-power operation, and industrial-grade reliability - especially in consumer and white-goods systems.
FAQ
What is the maximum operating frequency and voltage range supported by the R5F21346MDFP#30?
The R5F21346MDFP#30 supports a maximum operating frequency of 20 MHz at VCC = 2.7–5.5 V, and 5 MHz at VCC = 1.8–5.5 V. This dual-frequency capability enables flexible design trade-offs between performance and ultra-low-voltage operation in battery-backed or energy-harvesting systems. The R5F21346MDFP#30 maintains full peripheral functionality across this entire voltage range.
Does the R5F21346MDFP#30 include hardware support for LIN communication?
Yes, the R5F21346MDFP#30 integrates a dedicated hardware LIN module compliant with LIN 2.0/2.1 standards, implemented using Timer RA and UART0. This eliminates CPU intervention for frame generation, synchronization, and checksum calculation - reducing latency and freeing processing resources for application tasks. The R5F21346MDFP#30 does not require external transceivers for physical layer interfacing.
How is background operation (BGO) implemented in the R5F21346MDFP#30 data flash?
The R5F21346MDFP#30 implements Background Operation (BGO) in its 4 KB data flash (1 KB × 4 blocks), allowing erase and program operations to proceed concurrently with CPU code execution from program ROM. This is managed via the Flash Memory Ready Interrupt and FMRDYIC register, enabling non-disruptive firmware updates and parameter logging. The R5F21346MDFP#30 guarantees 10,000 write/erase cycles for data flash.
What are the low-power consumption figures for the R5F21346MDFP#30 in wait and stop modes?
In wait mode with f(XCIN) = 32 kHz and VCC = 3.0 V, the R5F21346MDFP#30 draws typ. 3.5 µA; in stop mode under identical conditions, it draws typ. 2.0 µA. Both modes retain RAM content and allow wake-up via external interrupts, timer events, or voltage detection. These figures are measured per R01DS0022EJ0100 Rev.1.00 and confirm suitability for battery-operated industrial sensors.
Which package and pin count does the R5F21346MDFP#30 use, and is it RoHS-compliant?
The R5F21346MDFP#30 uses a 48-pin LQFP package designated PLQP0048KB-A (7 mm × 7 mm, 0.5 mm pitch), previously coded 48P6Q-A. It is RoHS-compliant and lead-free per Renesas standard packaging specifications. Pin assignments match Figure 1.3 and Tables 1.4–1.7 in the official datasheet R01DS0022EJ0100, with full multiplexing support via software configuration.
R5F21346MDFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- R8C/3x/34M
- Packaging:
- Tray
- 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:
- 43
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21346MDFP#30 FAQ
1.How can I place an order for R5F21346MDFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21346MDFP#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 R5F21346MDFP#30 reliable?
The price and inventory of R5F21346MDFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21346MDFP#30 is usually 5 days.
3.What payment methods are accepted for R5F21346MDFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21346MDFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21346MDFP#30?
R5F21346MDFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21346MDFP#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 R5F21346MDFP#30?
For technical support, including R5F21346MDFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21346MDFP#30 requirements.
6.How does Aetrix verify that R5F21346MDFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F21346MDFP#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 R5F21346MDFP#30 meets industry standards.
7.What is the process for return or replacement of R5F21346MDFP#30?
All R5F21346MDFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21346MDFP#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 R5F21346MDFP#30 part is unused and in its original packaging.
Return procedure for R5F21346MDFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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