My Inquiry
My Account
Renesas R5F21368CNFA#W4
- Part No.:
- R5F21368CNFA#W4
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F21368CNFA#W4.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,476
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F21368CNFA#W4 from Renesas Electronics is a 16-bit R8C CPU core MCU with 64 KB program ROM, 6 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 59 CMOS I/O ports with pull-up select, integrated 10-bit × 12-channel A/D converter, dual 8-bit D/A converters, and hardware LIN module. It targets embedded control in consumer audio equipment and office automation systems.
For engineers reviewing the R5F21368CNFA#W4 datasheet, R5F21368CNFA#W4 pinout, R5F21368CNFA#W4 application, or R5F21368CNFA#W4 equivalent, key selection criteria include its 64-pin LQFP (PLQP0064GA-A) package, −20°C to +85°C operating range (N version), real-time clock (Timer RE), and support for low-power wait/stop modes with typical current as low as 4.0 µA (wait mode, 3.0 V, 32 kHz).
Technical Context
The R5F21368CNFA#W4 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte address space, with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash mapped at 03000h–03FFFh.
Peripheral integration includes Timer RD (16-bit × 2, 6-pin complementary PWM), UART0/1/2 with I²C mode, SSU shared with I²C bus, LIN module (using Timer RA and UART0), and voltage detection circuit with selectable levels for power-on reset and brown-out protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 16×16→32-bit multiplier, and MAC instruction |
| Max Operating Frequency | 20 MHz at VCC = 2.7–5.5 V; minimum instruction time = 50 ns |
| Memory | 64 KB program ROM, 6 KB RAM, 4 KB data flash (1 KB × 4 blocks) with BGO |
| A/D Converter | 10-bit resolution, 12 input channels, sample-and-hold, sweep mode |
| D/A Converter | 8-bit resolution × 2 independent output channels (DA0, DA1) |
| Timers | Timer RA/RB (8-bit), RC/RD/RF/RG (16-bit), RE (8-bit RTC), watchdog (14-bit) |
| I/O & Peripherals | 59 CMOS I/O ports (59 high-current drive), UART × 3, I²C, SSU, LIN, comparator B × 2 |
Pinout & Package
Package: 64-pin LQFP (PLQP0064GA-A), 10 mm × 10 mm, 0.5 mm pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog inputs / D/A outputs / timer I/O | AN0–AN7, DA0/DA1, TRCIOA–TRCIOD, TREO - support mixed-signal control and waveform generation |
| P1_0–P1_7 | General-purpose I/O / key interrupt / serial interface | KI0–KI3, RXD0/TXD0, CLK0, AN8–AN11 - enable keypad scanning and UART0 communication |
| P2_0–P2_7 | Timer RD I/O / capture/compare pins | TRDIOA0–TRDIOD1, TRDCLK - provide 8 dedicated pins for 3-phase PWM or encoder interface |
| P3_0–P3_7 | UART2/I²C/SSU/INT3/SCS | RXD2/TXD2/SCL2/SDA2, SSI/SSCK/SSO, CTS2/RTS2 - enable multi-protocol serial connectivity |
| XIN/XOUT | High-speed crystal oscillator input/output | Supports 20 MHz external crystal; internal high-speed oscillator adjustable via software |
| XCIN/XCOUT | 32 kHz real-time clock crystal interface | Enables low-power RTC operation independent of main system clock |
| RESET | Active-low reset input | Hardware reset initiation; internally tied to voltage detection and oscillation stop detection |
| MODE | Boot mode configuration | Must be pulled high via resistor to enter normal single-chip operation mode |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming while CPU executes code - enables firmware updates without halting real-time tasks |
| Hardware LIN Module | Integrated LIN 2.1 physical layer using UART0 and Timer RA - eliminates external transceiver for automotive body electronics |
| Low-Power Modes | Wait mode (4.0 µA @ 3.0 V, 32 kHz) and stop mode (2.0 µA) - extends battery life in portable consumer devices |
| Real-Time Clock (Timer RE) | 8-bit counter with seconds/minutes/hours/days-of-week calendar mode - supports time-stamped logging without external RTC IC |
| Voltage Detection Circuit | Configurable level detection (VDD monitor) with power-on reset and brown-out protection - ensures reliable boot and safe shutdown |
Applications
| Audio Equipment Control | Office Automation Devices |
|---|---|
Use Scenario: Digital audio mixer with volume leveling, tone adjustment, and display interface. IC Role / Device Role / Timing Role: Main controller managing analog front-end (A/D, D/A), user interface (key input, LCD), and serial comms (UART, I²C). Use Value: Integrated 12-channel A/D and dual 8-bit D/A eliminate external converters; LIN module enables inter-device control in multi-unit systems. | Use Scenario: Automatic document feeder (ADF) in multifunction printers with motor control and sensor feedback. IC Role / Device Role / Timing Role: Motion controller coordinating stepper motor drivers (via Timer RD PWM), optical sensors (A/D), and host USB bridge (UART2). Use Value: 6-pin complementary PWM on Timer RD drives 3-phase motors directly; 59 high-current I/O ports simplify PCB routing for sensor and actuator interfaces. |
| Consumer Appliance UI | Industrial Panel Meters |
Use Scenario: Touchless control panel for microwave oven with rotary encoder and LED display. IC Role / Device Role / Timing Role: User interface processor handling KI0–KI3 key scan, phase counting (Timer RG), and display refresh timing (Timer RB PWM). Use Value: Hardware phase counting mode measures 2-phase encoder position without CPU overhead; built-in pull-up resistors reduce BOM count. | Use Scenario: DIN-rail mounted energy meter with analog sensor inputs and RS-485 communication. IC Role / Device Role / Timing Role: Data acquisition node converting voltage/current sensor outputs (A/D), computing RMS values, and transmitting via UART1 with isolated RS-485 transceiver. Use Value: 10-bit A/D with sample-and-hold ensures accurate AC waveform sampling; data flash stores calibration coefficients with BGO for field updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21368CNFP#W4 | Same core, memory, and peripherals; differs only in package (PLQP0064KB-A vs PLQP0064GA-A) | Identical functionality; PLQP0064KB-A has different land pattern and thermal pad design | Select when board layout uses the KB-A footprint or requires alternate thermal performance |
| R5F21368CDFA#W4 | Same package and memory; rated for −40°C to +85°C (D version) vs −20°C to +85°C (N version) | Required for extended temperature industrial deployments; otherwise identical electrical behavior | Choose for harsh-environment applications where ambient exceeds 85°C or drops below −20°C |
Compared with R5F21368CNFA#W4, the CNFP variant offers mechanical compatibility with alternate LQFP land patterns, while the CDFA variant adds extended temperature qualification-neither provides functional upgrades but addresses mechanical or environmental deployment constraints.
Availability
R5F21368CNFA#W4 is available at Aetrix Electronics and suitable for audio equipment control, office automation devices, consumer appliance UI, and industrial panel meters requiring stable component supply across long-life production cycles.
Supply support for R5F21368CNFA#W4 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/36C Group, including R5F21368CNFA#W4, was designed for cost-sensitive, low-power embedded control in consumer electronics-emphasizing integrated analog peripherals, LIN connectivity, and robust EMI/EMS performance.
FAQ
What is the operating temperature range for R5F21368CNFA#W4?
The R5F21368CNFA#W4 is an N-version device rated for −20°C to +85°C ambient operating temperature. This specification is defined in the Renesas datasheet R01DS0018EJ0110 and applies to all electrical characteristics unless otherwise noted. The D-version alternative (R5F21368CDFA#W4) extends the lower limit to −40°C.
Does R5F21368CNFA#W4 support in-circuit debugging?
Yes, R5F21368CNFA#W4 includes on-chip debug functionality per the R8C/36C Group datasheet. It supports full-speed debugging via the single-wire debug interface, allowing breakpoints, watchpoints, and register inspection without requiring external debug hardware beyond a standard Renesas E1/E20 emulator.
How many A/D converter channels does R5F21368CNFA#W4 have, and what is their resolution?
R5F21368CNFA#W4 integrates a 10-bit successive-approximation A/D converter with 12 analog input channels (AN0–AN11). It supports sample-and-hold operation and sweep mode for automatic channel sequencing, enabling simultaneous monitoring of multiple sensors in consumer appliance applications.
Can R5F21368CNFA#W4 generate three-phase PWM waveforms?
Yes, R5F21368CNFA#W4's Timer RD supports reset synchronous PWM mode and complementary PWM mode, both capable of generating synchronized three-phase waveforms on six output pins (TRDIOA0–TRDIOD1). These modes include sawtooth and triangular wave modulation, essential for brushless DC motor control.
Is background operation (BGO) supported for data flash on R5F21368CNFA#W4?
Yes, R5F21368CNFA#W4 supports background operation (BGO) for its 4 KB data flash (1 KB × 4 blocks). This allows the CPU to execute application code from program ROM while simultaneously erasing or programming data flash-critical for over-the-air firmware updates and runtime parameter storage.
R5F21368CNFA#W4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- R8C/3x/36C
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 59
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 6K 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:
R5F21368CNFA#W4 FAQ
1.How can I place an order for R5F21368CNFA#W4 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21368CNFA#W4 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 R5F21368CNFA#W4 reliable?
The price and inventory of R5F21368CNFA#W4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21368CNFA#W4 is usually 5 days.
3.What payment methods are accepted for R5F21368CNFA#W4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21368CNFA#W4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21368CNFA#W4?
R5F21368CNFA#W4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21368CNFA#W4 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 R5F21368CNFA#W4?
For technical support, including R5F21368CNFA#W4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21368CNFA#W4 requirements.
6.How does Aetrix verify that R5F21368CNFA#W4 is sourced from the original manufacturer or authorized distributors?
All R5F21368CNFA#W4 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 R5F21368CNFA#W4 meets industry standards.
7.What is the process for return or replacement of R5F21368CNFA#W4?
All R5F21368CNFA#W4 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21368CNFA#W4, 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 R5F21368CNFA#W4 part is unused and in its original packaging.
Return procedure for R5F21368CNFA#W4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21368CNFA#W4 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…
