Renesas R5F2136ACNFP#50
- Part No.:
- R5F2136ACNFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F2136ACNFP#50.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F2136ACNFP#50 from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 96 KB program ROM, 8 KB data flash (4 × 1 KB blocks), and 8 KB RAM, operating at up to 20 MHz (VCC = 2.7–5.5 V). It integrates UART0/1/2, I²C, LIN, 12-channel 10-bit ADC, dual 8-bit DAC, six timer modules (RA–RG), DTC, and voltage detection circuitry. Used in consumer audio equipment and office automation systems requiring deterministic real-time control and low-power operation.
For engineers reviewing the R5F2136ACNFP#50 datasheet, R5F2136ACNFP#50 pinout, R5F2136ACNFP#50 application, or R5F2136ACNFP#50 equivalent, key selection criteria include its 64-pin LQFP (PLQP0064KB-A) package, background operation (BGO) support for data flash, real-time clock (Timer RE), and hardware LIN compliance using Timer RA and UART0 - all critical for embedded motor control and appliance UI subsystems.
Technical Context
The R5F2136ACNFP#50 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 (up to 20 MHz), XCIN (32 kHz), high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator. Power management includes wait mode (4.0 µA @ 3.0 V, 32 kHz) and stop mode (2.0 µA @ 3.0 V), with voltage detection (VDD monitor) enabling power-on reset and selectable threshold levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 16×16→32-bit multiplier, and MAC unit - enables efficient signal processing in appliance control loops. |
| Memory | 96 KB program ROM + 8 KB data flash (4 × 1 KB blocks, BGO supported) + 8 KB RAM - allows firmware updates without halting execution and stores calibration data persistently. |
| Operating Frequency | 20 MHz max (VCC = 2.7–5.5 V); 5 MHz min (VCC = 1.8–5.5 V) - balances performance and supply flexibility across battery- and line-powered designs. |
| ADC/DAC | 12-channel 10-bit ADC with sample-and-hold and sweep mode; dual 8-bit DAC outputs - supports analog sensor interfacing and audio tone generation. |
| Timers | Timer RD (16-bit ×2, 6-pin PWM, complementary/sawtooth modulation), Timer RC (16-bit, 3-pin PWM), Timer RE (real-time clock) - enables motor phase control and time-stamped event logging. |
| Communication | UART0/1/2 (I²C-capable on UART2), SSU, LIN hardware module (Timer RA + UART0), 59 CMOS I/O ports - simplifies multi-protocol connectivity in home appliance subsystems. |
| Power Modes | Standard, wait (4.0 µA @ 3.0 V, 32 kHz), stop (2.0 µA @ 3.0 V) - extends battery life in remote controls and sensor nodes. |
Pinout & Package
Package: 64-pin LQFP (PLQP0064KB-A), 10 mm × 10 mm, 0.5 mm pitch, N-version (−20°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog input / DA output / Timer RC I/O | Supports AN0–AN7, DA0/DA1, and TRCIOA–TRCIOD - enables simultaneous analog sensing and waveform generation. |
| P1_0–P1_3 | Analog input / Key interrupt / Timer RB output | AN8–AN11, KI0–KI3, TRBO - integrates front-panel button scanning and sensor inputs on same port group. |
| P2_0–P2_7 | Timer RD I/O / External trigger | TRDIOA0–TRDIOD1, TRDCLK - provides full 6-pin complementary PWM for 3-phase motor drive with dead-time control. |
| RESET / MODE / XIN / XOUT / XCIN / XCOUT | Reset control / Clock configuration / Oscillator interface | Hardware reset assertion, external crystal (XIN/XOUT) or 32 kHz watch crystal (XCIN/XCOUT) - ensures robust clocking and safe boot sequence. |
| UART0/1/2 pins (e.g., P1_4/P1_5, P6_2/P6_3, P3_4/P3_5) | Serial data I/O / I²C bus / LIN transceiver interface | TXD0/RXD0, TXD1/RXD1, SCL2/SDA2, and LIN physical layer via UART0 - eliminates need for external transceivers in appliance communication networks. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming while CPU executes code - enables seamless firmware field updates without system interruption. |
| Hardware LIN Module | Dedicated LIN 2.0 support via Timer RA and UART0 - reduces CPU load and guarantees timing-critical frame transmission in automotive-grade appliance subsystems. |
| Real-Time Clock (Timer RE) | 8-bit counter with seconds/minutes/hours/days-of-week resolution - provides accurate timekeeping for scheduling and energy management without external RTC IC. |
| Voltage Detection Circuit | Configurable reset and detection thresholds (VDD monitor) - ensures reliable brown-out recovery and prevents erratic behavior during power dips. |
| DTC (Data Transfer Controller) | Single-channel DMA with 39 activation sources - offloads ADC data capture and UART buffering from CPU, improving real-time response. |
Applications
| Audio Equipment Control | Office Equipment Motor Drive |
|---|---|
Use Scenario: Digital audio amplifier with volume control, input switching, and display backlight management. IC Role / Device Role / Timing Role: Main system controller executing real-time DSP tasks, managing I²C-connected DACs and UART-linked display modules. Use Value: Integrated 10-bit ADC monitors thermal sensors; dual 8-bit DACs generate bias voltages; Timer RD delivers precise PWM for backlight dimming. | Use Scenario: Paper feed and scanner motor control in multifunction printers. IC Role / Device Role / Timing Role: Dedicated motion controller generating synchronized 3-phase waveforms and monitoring encoder feedback. Use Value: Timer RD's complementary PWM mode drives gate drivers directly; phase counting in Timer RG measures encoder position without external logic. |
| Consumer Appliance UI | Home Automation Sensor Hub |
Use Scenario: Touchless interface and status display in microwave ovens and washing machines. IC Role / Device Role / Timing Role: Front-end controller handling key scan, LED/LCD driving, buzzer tone generation, and safety interlock monitoring. Use Value: Key input interrupts (KI0–KI3) detect button presses; Timer RB generates programmable one-shot pulses for buzzer drive; 59 I/O ports simplify PCB routing. | Use Scenario: Battery-powered environmental sensor node aggregating temperature, humidity, and motion data. IC Role / Device Role / Timing Role: Low-power data concentrator sampling analog sensors, formatting packets, and transmitting via UART to gateway. Use Value: Stop mode current of 2.0 µA extends battery life; 12-channel ADC reads multiple sensors; internal voltage detection replaces external supervisor IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21368CNFP | 64 KB program ROM, 6 KB data flash, same 64-pin LQFP package and peripheral set | Suitable for cost-sensitive designs with smaller firmware footprint and reduced nonvolatile data storage needs | Select when application firmware size is under 64 KB and calibration data volume is ≤6 KB. |
| R5F2136CCNFP | 128 KB program ROM, 10 KB data flash, identical architecture and pinout | Targeted at feature-rich appliances requiring larger OS layers, OTA update partitions, or extensive logging buffers | Choose for next-generation platforms needing headroom for future firmware expansion and enhanced diagnostics. |
Compared with R5F21368CNFP, the R5F2136ACNFP#50 offers 32 KB more program ROM and 2 KB more data flash - critical for complex UI stacks and long-term sensor calibration retention; versus R5F2136CCNFP, it trades 32 KB ROM and 2 KB data flash for lower cost and power in mature product iterations.
Availability
R5F2136ACNFP#50 is available at Aetrix Electronics and suitable for audio equipment control, office equipment motor drive, consumer appliance UI, and home automation sensor hub applications requiring stable component supply and long-term industrial availability.
Supply support for R5F2136ACNFP#50 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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The R8C/36C Group is designed for cost-effective, low-power embedded control in consumer electronics - emphasizing integrated peripherals, EMI/EMS robustness, and background flash operations for field-upgradable appliances.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F2136ACNFP#50?
The R5F2136ACNFP#50 operates at up to 20 MHz when supplied between 2.7 V and 5.5 V. At lower supply voltages (1.8 V to 5.5 V), the maximum frequency is 5 MHz. This dual-frequency capability allows flexible power/performance trade-offs across battery- and mains-powered applications without changing the R5F2136ACNFP#50 part number.
Does the R5F2136ACNFP#50 support in-system programming of its data flash memory?
Yes, the R5F2136ACNFP#50 supports background operation (BGO) for data flash, enabling erase and write operations while the CPU continues executing code from program ROM. This feature is essential for runtime parameter storage and firmware updates without system interruption - a core capability confirmed in the R8C/36C Group datasheet for the R5F2136ACNFP#50.
How many analog input channels does the R5F2136ACNFP#50 provide, and what is their resolution?
The R5F2136ACNFP#50 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 channel sequencing - allowing continuous monitoring of multiple sensors such as thermistors, potentiometers, or current shunts in appliance control systems using the R5F2136ACNFP#50.
Is the R5F2136ACNFP#50 pin-compatible with other members of the R8C/36C Group?
Yes, all R8C/36C Group devices in the PLQP0064KB-A package - including R5F21364CNFP through R5F2136CCNFP - share identical 64-pin LQFP pinouts and electrical characteristics. This allows direct substitution within the same package variant, provided firmware accommodates differences in ROM/RAM size and peripheral enablement - a documented compatibility for the R5F2136ACNFP#50.
What clock sources are available on the R5F2136ACNFP#50 for low-power operation?
The R5F2136ACNFP#50 provides four clock sources: XIN (external crystal/resonator), XCIN (32 kHz watch crystal), high-speed on-chip oscillator (adjustable), and low-speed on-chip oscillator. In stop mode, the XCIN-based 32 kHz clock sustains Timer RE and wake-up functions while consuming only 2.0 µA - a verified low-power configuration for the R5F2136ACNFP#50.
R5F2136ACNFP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- R8C/3x/36C
- Packaging:
- Tape & Reel (TR)
- 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:
- 59
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 8K 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:
R5F2136ACNFP#50 FAQ
1.How can I place an order for R5F2136ACNFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2136ACNFP#50 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 R5F2136ACNFP#50 reliable?
The price and inventory of R5F2136ACNFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2136ACNFP#50 is usually 5 days.
3.What payment methods are accepted for R5F2136ACNFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F2136ACNFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F2136ACNFP#50?
R5F2136ACNFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F2136ACNFP#50 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 R5F2136ACNFP#50?
For technical support, including R5F2136ACNFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2136ACNFP#50 requirements.
6.How does Aetrix verify that R5F2136ACNFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F2136ACNFP#50 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 R5F2136ACNFP#50 meets industry standards.
7.What is the process for return or replacement of R5F2136ACNFP#50?
All R5F2136ACNFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2136ACNFP#50, 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 R5F2136ACNFP#50 part is unused and in its original packaging.
Return procedure for R5F2136ACNFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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