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Renesas R5F2138CCNFP#U0
- Part No.:
- R5F2138CCNFP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F2138CCNFP#U0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,687
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Product details
Overview
R5F2138CCNFP#U0 from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 128 KB flash program ROM, 10 KB data flash (4 × 1 KB blocks), and 2.5 KB RAM, operating at up to 20 MHz (VCC = 2.7–5.5 V). It integrates UART0/1/2, I²C, LIN, 10-bit 20-channel ADC, dual 8-bit DACs, six timer modules (RA–RG), and background operation (BGO) for in-application data flash rewriting-targeted for real-time control in consumer audio and office equipment.
For engineers reviewing the R5F2138CCNFP#U0 datasheet, R5F2138CCNFP#U0 pinout, R5F2138CCNFP#U0 application, or R5F2138CCNFP#U0 equivalent, key selection criteria include its 80-pin LQFP package, −20°C to +85°C industrial temperature grade (N version), integrated LIN hardware module, BGO-enabled data flash, and support for low-power wait/stop modes down to 2.0 µA.
Technical Context
The R5F2138CCNFP#U0 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 features four independent clock sources: XIN (up to 20 MHz), XCIN (32 kHz), high-speed on-chip oscillator (adjustable), and low-speed on-chip oscillator-enabling flexible power/performance trade-offs across standard, wait, and stop modes. Oscillation stop detection and voltage monitoring (VDD detect levels selectable) provide robust system supervision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 50 ns min instruction time at 20 MHz |
| Flash Memory | 128 KB program ROM + 10 KB data flash (4 × 1 KB blocks) with BGO support |
| RAM | 2.5 KB on-chip RAM used for data storage and stack operations |
| ADC | 10-bit resolution, 20 input channels with sample-and-hold and sweep mode |
| DAC | Two independent 8-bit D/A converters (DA0, DA1) |
| Timers | Timer RA/RB (8-bit), RC/RD/RE/RF/RG (16-bit); RD supports 3-phase PWM & complementary PWM |
| Serial Interfaces | UART0/1/2, I²C bus (shared with SSU), hardware LIN (using Timer RA + UART0) |
| Power Modes | Standard, wait (4.0 µA @ 3.0 V, 32 kHz), stop (2.0 µA @ 3.0 V) |
Pinout & Package
Package: 80-pin LQFP (PLQP0080KB-A, previous code 80P6Q-A), 12 × 12 mm body, 0.5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Active-low reset input | Drives full chip reset when pulled low; internal pull-up ensures reliable startup |
| XIN / XOUT | Main system clock oscillator interface | Supports external crystal/resonator up to 20 MHz for precise timing |
| XCIN / XCOUT | Real-time clock oscillator interface | Connects 32.768 kHz crystal for Timer RE-based RTC functionality |
| P0_0–P0_7 | CMOS I/O port with analog inputs | AN0–AN7 mapped; DA0/DA1 outputs available on P0_6/P0_7 for audio DAC use |
| P1_0–P1_7 | CMOS I/O with key interrupt support | KI0–KI3 inputs enable low-pin-count keypad interfaces without external logic |
| UART0 TXD0/RXD0 | Asynchronous serial interface | Full-duplex communication channel for host MCU or peripheral diagnostics |
| UART2 SCL2/SDA2 | I²C bus interface | Hardware I²C master/slave support for sensor or EEPROM connectivity |
| TRFO00–TRFO12 | Timer RF output pins | Enable multi-channel pulse generation for motor control or LED dimming |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Enables concurrent program execution while rewriting data flash-critical for firmware updates without halting real-time tasks |
| Hardware LIN Module | Integrated LIN 2.0/2.1 support via Timer RA and UART0 eliminates need for external transceiver in automotive body electronics |
| Low-Power Stop Mode | 2.0 µA current draw at 3.0 V enables battery-powered standby operation exceeding 1 year on coin cell |
| Multi-Source Clock System | Four independent clocks (XIN, XCIN, high-speed/low-speed on-chip) allow dynamic switching to optimize performance vs. power |
| Voltage Detection Circuits | Configurable voltage monitor (VDD detect level selectable) provides fail-safe reset and brown-out protection |
| 10-Bit 20-Channel ADC | Simultaneous sampling of multiple analog sensors (e.g., temp, light, audio line-in) with programmable sweep sequencing |
Applications
| Audio Equipment Control | Office Equipment Motor Control |
|---|---|
Use Scenario: Digital audio receiver managing volume, source selection, EQ, and display backlighting. IC Role / Device Role / Timing Role: Main system controller executing real-time audio processing, user interface polling, and IR remote decoding. Use Value: Integrated 10-bit ADC reads potentiometer positions; dual 8-bit DACs drive analog audio outputs; BGO allows firmware updates during playback. | Use Scenario: Laser printer engine controller managing stepper motor positioning, toner heating, and paper feed timing. IC Role / Device Role / Timing Role: Precision motion controller coordinating PWM-driven motors and thermal regulation via PID loops. Use Value: Timer RD's complementary PWM mode generates three-phase gate drive signals; 16-bit timers ensure sub-millisecond motor phase alignment. |
| Consumer Appliance UI | Industrial Panel Meter |
Use Scenario: Microwave oven control panel handling keypad input, display refresh, cooking timer, and safety interlock monitoring. IC Role / Device Role / Timing Role: Embedded HMI processor managing touchless key scan, segmented LCD drive, and real-time cooking countdown. Use Value: KI0–KI3 inputs directly interface membrane keypad; Timer RE provides accurate seconds-based countdown; low-power stop mode extends standby battery life. | Use Scenario: DIN-rail mounted panel meter measuring AC voltage/current with local display and RS-485 communication. IC Role / Device Role / Timing Role: Signal acquisition and protocol gateway converting analog sensor data to Modbus RTU over UART2. Use Value: 20-channel ADC samples multiple sensor inputs simultaneously; UART2 with hardware flow control (CTS2/RTS2) ensures robust industrial comms; LIN-capable UART0 supports future fieldbus expansion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F2138ACNFP | 96 KB program ROM, 8 KB data flash, same 80-pin LQFP package and peripheral set | Suitable where firmware size < 96 KB and data logging capacity ≤ 8 KB is sufficient | Select when cost optimization is prioritized and full 128 KB ROM headroom is unnecessary |
| R5F2138CCDFP | Identical memory and peripherals, but rated for −40°C to +85°C (D version) instead of −20°C to +85°C (N version) | Required for extended-temperature industrial or automotive under-hood environments | Choose only if operation below −20°C is mandatory; otherwise R5F2138CCNFP#U0 is optimal for commercial-grade applications |
Compared with R5F2138ACNFP and R5F2138CCDFP, the R5F2138CCNFP#U0 offers maximum flash capacity within the N-grade temperature range, making it ideal for feature-rich consumer devices where extended temperature tolerance is not required but firmware scalability is critical.
Availability
R5F2138CCNFP#U0 is available at Aetrix Electronics and suitable for audio equipment control, office equipment motor control, consumer appliance UI, and industrial panel meter applications requiring stable component supply and long-term production continuity.
Supply support for R5F2138CCNFP#U0 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/38C Group, including R5F2138CCNFP#U0, was designed for cost-sensitive, real-time embedded control in consumer electronics-emphasizing low EMI/EMS, integrated analog peripherals, and ultra-low-power operation.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F2138CCNFP#U0?
The R5F2138CCNFP#U0 operates at up to 20 MHz when supplied at 2.7–5.5 V, and supports reduced-frequency operation down to 5 MHz at 1.8–5.5 V for ultra-low-voltage applications. Its minimum instruction execution time is 50 ns at 20 MHz, enabling deterministic real-time response in time-critical control loops.
Does the R5F2138CCNFP#U0 support in-system programming of its data flash memory?
Yes, the R5F2138CCNFP#U0 supports background operation (BGO) for data flash, allowing program execution to continue uninterrupted while rewriting the 10 KB data flash (four 1 KB blocks). This enables safe firmware parameter updates, calibration storage, or event logging without system reset or functional interruption.
How many analog-to-digital converter channels does the R5F2138CCNFP#U0 provide, and what is their resolution?
The R5F2138CCNFP#U0 integrates a single 10-bit successive-approximation ADC with 20 input channels (AN0–AN19), supporting sample-and-hold and automatic channel sweep mode. This enables simultaneous monitoring of multiple analog sensors-such as temperature, light, or audio line inputs-in resource-constrained consumer systems.
What peripheral interfaces are available on the R5F2138CCNFP#U0 for communication with external devices?
The R5F2138CCNFP#U0 provides UART0, UART1, and UART2 (with I²C and multiprocessor modes), a dedicated I²C bus (shared with SSU), and hardware LIN 2.x support via Timer RA and UART0. These interfaces enable robust communication with displays, sensors, EEPROMs, and automotive sub-nodes without external protocol translators.
Is the R5F2138CCNFP#U0 pin-compatible with other members of the R8C/38C Group?
Yes, all R8C/38C Group MCUs-including R5F2138CCNFP#U0, R5F2138ACNFP, and R5F2138CCDFP-share the identical 80-pin LQFP (PLQP0080KB-A) package and pin assignment. This allows direct PCB reuse across memory variants and temperature grades, simplifying design scaling and qualification.
R5F2138CCNFP#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- R8C/3x/38C
- Packaging:
- Tray
- 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:
- 75
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 20x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F2138CCNFP#U0 FAQ
1.How can I place an order for R5F2138CCNFP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2138CCNFP#U0 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 R5F2138CCNFP#U0 reliable?
The price and inventory of R5F2138CCNFP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2138CCNFP#U0 is usually 5 days.
3.What payment methods are accepted for R5F2138CCNFP#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F2138CCNFP#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F2138CCNFP#U0?
R5F2138CCNFP#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F2138CCNFP#U0 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 R5F2138CCNFP#U0?
For technical support, including R5F2138CCNFP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2138CCNFP#U0 requirements.
6.How does Aetrix verify that R5F2138CCNFP#U0 is sourced from the original manufacturer or authorized distributors?
All R5F2138CCNFP#U0 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 R5F2138CCNFP#U0 meets industry standards.
7.What is the process for return or replacement of R5F2138CCNFP#U0?
All R5F2138CCNFP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2138CCNFP#U0, 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 R5F2138CCNFP#U0 part is unused and in its original packaging.
Return procedure for R5F2138CCNFP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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