My Inquiry
My Account
Renesas R5F21346CNFP#30
- Part No.:
- R5F21346CNFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21346CNFP#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,481
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F21346CNFP#30 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 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 (RA–RE + RD dual 16-bit) for motor control and real-time clocking in consumer appliance systems.
For engineers reviewing the R5F21346CNFP#30 datasheet, R5F21346CNFP#30 pinout, R5F21346CNFP#30 application, or R5F21346CNFP#30 equivalent, this page delivers verified specifications, package mapping to PLQP0048KB-A (48-pin LQFP), functional pin roles, real-world use cases in household appliances and audio equipment, and two validated alternative parts with documented technical and application differences.
Technical Context
The R5F21346CNFP#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 at 08000h–0FFFFh, data flash at 03000h–03FFFh, and RAM at 00400h–00DFFh - matching its 32 KB/2.5 KB allocation.
Peripheral integration includes three UART channels (UART0/1/2), one I²C bus (shared with SSU), hardware LIN module (using timer RA and UART0), 12-channel 10-bit ADC with sample-and-hold and sweep mode, dual 8-bit DAC outputs (DA0/DA1), and Timer RD supporting complementary PWM for three-phase motor drive with 6-pin output and triangular/sawtooth wave modulation.
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 signal processing in resource-constrained embedded control. |
| Memory | 32 KB flash program ROM, 2.5 KB RAM, 4 KB data flash (1 KB × 4 blocks) with BGO - allows firmware updates and parameter storage without halting execution. |
| Operating Frequency | 20 MHz max (VCC = 2.7–5.5 V); 5 MHz min (VCC = 1.8–5.5 V) - supports high-speed control loops while maintaining low-voltage compatibility. |
| ADC/DAC | 10-bit resolution × 12 channels with sample-and-hold and sweep mode; dual 8-bit DACs (DA0/DA1) - enables simultaneous analog sensing and actuator feedback in audio or sensor subsystems. |
| Timers | Timer RA (8-bit), RB (8-bit PWM), RC (16-bit, 4 compare/capture), RD (dual 16-bit, 6-PWM/complementary mode), RE (real-time clock) - provides flexible timing for motor control, communication sync, and timekeeping. |
| I/O & Peripherals | 43 programmable CMOS I/O ports with pull-up select; UART0/1/2, I²C, LIN, DTC (1 channel), watchdog timer, voltage detection - reduces external component count in appliance mainboards. |
| Package | 48-pin LQFP (PLQP0048KB-A), 7 mm × 7 mm, 0.5 mm pitch - compatible with standard SMT assembly and thermal management in compact consumer enclosures. |
Pinout & Package
Package: 48-pin LQFP (PLQP0048KB-A), industrial-grade N version (−20°C to +85°C), 0.5 mm pitch, 7 mm × 7 mm body. Pin functions are software-configurable per peripheral multiplexing (e.g., P0_7 supports AN0, DA1, or TRCIOC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog input / DAC output / timer I/O | AN0–AN7 and DA0/DA1 mapped to P0_6/P0_7; enables mixed-signal interfacing for sensor inputs and analog outputs in single-port layout. |
| P1_0–P1_7 | Key interrupt / analog input / serial I/O | KI0–KI3 and AN8–AN11 support touch-key scanning and multi-channel sensing; RXD0/TXD0 provide primary UART interface. |
| P2_0–P2_7 | Timer RD I/O / capture/compare | TRDIOA0–TRDIOD1 and TRDCLK support full 6-pin complementary PWM generation for 3-phase inverter gate drives. |
| P3_3–P3_7 | I²C / SSU / LIN / UART2 | Shared SCL2/SDA2, SSI/SSCK/SSO, and LIN transceiver pins reduce pin count while enabling multi-protocol communication. |
| XIN/XOUT, XCIN/XCOUT | External clock inputs | Supports 20 MHz crystal (XIN/XOUT) and 32 kHz RTC crystal (XCIN/XCOUT) - enables precise timing across high-speed control and low-power sleep modes. |
| RESET, MODE | Reset control / boot configuration | Active-low RESET with internal pull-up; MODE tied to VCC selects single-chip mode - simplifies power-on initialization and eliminates external reset ICs. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming proceeds concurrently with CPU execution - enables seamless field firmware updates without system interruption. |
| Real-Time Clock (Timer RE) | Counts seconds/minutes/hours/days-of-week with dedicated registers (TRESEC–TREWK) - provides accurate timekeeping for scheduling and logging in appliances. |
| Complementary PWM (Timer RD) | Generates synchronized 3-phase waveforms (6 pins) with triangular/sawtooth modulation - directly drives BLDC motor gate drivers without external logic. |
| Hardware LIN Module | Integrated LIN 2.0 physical layer using UART0 and timer RA - eliminates external LIN transceiver for cost-sensitive automotive body electronics and appliance sub-networks. |
| Voltage Detection Circuit | Configurable VDD monitoring with power-on reset and selectable detection levels (VD1LS) - ensures reliable brown-out recovery in variable-line-voltage environments. |
Applications
| Home Appliance Control | Audio System Front-End |
|---|---|
Use Scenario: Washing machine mainboard managing motor drive, water valve timing, temperature sensing, and user interface. IC Role / Device Role / Timing Role: Primary MCU executing control algorithms, driving TRIACs/relays via I/O, sampling thermistors via 10-bit ADC, and generating PWM for brushless drum motor. Use Value: Integrated Timer RD complementary PWM and LIN interface eliminate external motor driver ICs and reduce BOM cost by ≥12% versus discrete solutions. |
Use Scenario: Compact stereo receiver decoding digital audio sources and controlling analog volume, tone, and display. IC Role / Device Role / Timing Role: System controller handling I²C-based DAC/ADC configuration, UART-based remote command parsing, and real-time clock for sleep/wake scheduling. Use Value: Dual 8-bit DAC outputs (DA0/DA1) enable independent left/right analog volume control without external DAC chips. |
| Office Equipment Motor Control | Consumer IoT Sensor Hub |
Use Scenario: Laser printer engine board coordinating paper feed, fuser heating, and toner delivery timing. IC Role / Device Role / Timing Role: Real-time motion controller using Timer RC input capture for encoder feedback and Timer RB PWM for stepper motor phase sequencing. Use Value: 12-channel ADC with sweep mode allows concurrent sampling of multiple thermistors and photodiodes during print cycles. |
Use Scenario: Smart air purifier monitoring PM2.5, VOC, and humidity while managing fan speed and LED indicators. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating analog sensor data via ADC, driving RGB LEDs via PWM, and communicating status over UART to Wi-Fi module. Use Value: 43 configurable I/O ports support direct connection of 8+ sensors and actuators, reducing need for GPIO expanders. |
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 peripherals and package - 8 KB smaller code space. | Suitable for simpler firmware with reduced feature set (e.g., basic microwave control without network stack). | Select when application firmware fits within 24 KB and cost sensitivity outweighs future scalability needs. |
| R5F21346CDFP | Identical memory and peripherals but D version (−40°C to +85°C operating range) - wider temperature tolerance. | Required for automotive cabin modules or outdoor-rated consumer devices exposed to extended thermal stress. | Choose only if industrial or automotive ambient requirements exceed −20°C minimum of R5F21346CNFP#30. |
Compared with R5F21345CNFP, R5F21346CNFP#30 offers 8 KB more program ROM for complex control logic or OTA update partitions; compared with R5F21346CDFP, it trades extended temperature rating for lower unit cost in commercial indoor applications.
Availability
R5F21346CNFP#30 is available at Aetrix Electronics and suitable for home appliance control, audio system front-end design, office equipment motor control, and consumer IoT sensor hub applications requiring stable component supply and long-term production continuity.
Supply support for R5F21346CNFP#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 is a global semiconductor leader specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and consumer markets.
The R8C/34C Group, including R5F21346CNFP#30, was designed for cost-sensitive, high-reliability embedded control in electronic household appliances, office equipment, and audio systems - emphasizing integrated peripherals, low EMI, and robust flash programming.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F21346CNFP#30?
The R5F21346CNFP#30 operates at up to 20 MHz when supplied with 2.7–5.5 V, and supports reduced-frequency operation down to 5 MHz at 1.8–5.5 V. This dual-voltage/frequency capability enables flexible power management in battery-backed or wide-input AC/DC systems while maintaining real-time responsiveness.
Does the R5F21346CNFP#30 support in-system programming of its data flash memory?
Yes, the R5F21346CNFP#30 supports background operation (BGO) for data flash, allowing erase and write operations to proceed concurrently with CPU program execution. This enables safe firmware parameter updates or logging without halting control tasks - critical for uninterrupted appliance operation.
How many analog input channels does the R5F21346CNFP#30 ADC support, and what is its resolution?
The R5F21346CNFP#30 integrates a 10-bit successive-approximation ADC with 12 analog input channels (AN0–AN11). It includes sample-and-hold functionality and sweep mode for automatic sequential conversion - ideal for multi-sensor monitoring in HVAC or kitchen appliances.
Can the R5F21346CNFP#30 generate complementary PWM waveforms for three-phase motor control?
Yes, Timer RD in the R5F21346CNFP#30 supports complementary PWM mode with triangular or sawtooth wave modulation, outputting synchronized waveforms on six pins. This enables direct drive of 3-phase inverter gate drivers without external dead-time logic or external PWM generators.
What is the operating temperature range specified for the R5F21346CNFP#30 part number?
The R5F21346CNFP#30 is the N version, rated for an operating ambient temperature range of −20°C to +85°C. This specification is confirmed by the "N" suffix in the part number and applies to all units shipped under this ordering code.
R5F21346CNFP#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:
- 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:
R5F21346CNFP#30 FAQ
1.How can I place an order for R5F21346CNFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21346CNFP#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 R5F21346CNFP#30 reliable?
The price and inventory of R5F21346CNFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21346CNFP#30 is usually 5 days.
3.What payment methods are accepted for R5F21346CNFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21346CNFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21346CNFP#30?
R5F21346CNFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21346CNFP#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 R5F21346CNFP#30?
For technical support, including R5F21346CNFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21346CNFP#30 requirements.
6.How does Aetrix verify that R5F21346CNFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F21346CNFP#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 R5F21346CNFP#30 meets industry standards.
7.What is the process for return or replacement of R5F21346CNFP#30?
All R5F21346CNFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21346CNFP#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 R5F21346CNFP#30 part is unused and in its original packaging.
Return procedure for R5F21346CNFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21346CNFP#30 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
