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Renesas R5F11B7CANA#20
- Part No.:
- R5F11B7CANA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F11B7CANA#20.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:354
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Product details
Overview
R5F11B7CANA#20 from Renesas Electronics is a 24-pin, 32 KB Flash, 5.5 KB RAM RL78/G1F 16-bit microcontroller operating at up to 32 MHz with true low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD), 1.6–5.5 V supply, and integrated 8/10-bit ADC (8 channels), 8-bit DAC (1 channel), 2 comparators, and programmable gain amplifier - used in battery-powered sensor nodes and smart home controllers.
For engineers reviewing the R5F11B7CANA#20 datasheet, R5F11B7CANA#20 pinout, R5F11B7CANA#20 application, or R5F11B7CANA#20 equivalent, this page delivers verified package mapping (HWQFN-24, 4×4 mm, 0.5 mm pitch), confirmed low-power modes (HALT/STOP/SNOOZE), validated peripheral count (9×16-bit timers, 1×RTC, 3×serial interfaces), and real-world substitution guidance for industrial-grade embedded control.
Technical Context
The R5F11B7CANA#20 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable instruction execution time (0.03125 μs @32 MHz to 30.5 μs @32.768 kHz). It integrates a high-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz), low-speed oscillator (15 kHz), and voltage detector with 14-level LVD interrupt/reset selection.
Its analog subsystem includes an 8/10-bit ADC with internal 1.45 V reference and temperature sensor, dual comparators with external/internal reference selection, and a single-channel PGA - all supported by event link controller (ELC) for hardware-triggered peripheral coordination without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Flash / RAM | 32 KB code flash (1 KB block size) + 4 KB data flash + 5.5 KB on-chip RAM |
| Operating Voltage | 1.6 V to 5.5 V - enables direct Li-ion, coin-cell, or 3.3/5 V rail operation without level-shifting |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE - extends battery life in intermittent-sensing applications |
| ADC / DAC | 8/10-bit ADC (8 input channels, internal 1.45 V ref, temp sensor); 8-bit DAC (1 output, 0–VDD range) |
| Timers & RTC | 9×16-bit timers (TAU, RJ, RD, RG, RX), 1×12-bit interval timer, 1×calendar RTC (99-year, alarm, correction) |
| Serial Interfaces | 1×CSI (SPI-like), 1×UART/LIN, 1×I²C - sufficient for sensor hub + actuator + bus communication |
| Package | HWQFN-24, 4 × 4 mm, 0.5 mm pitch, exposed die pad - compact footprint for space-constrained PCBs |
Pinout & Package
Package: HWQFN-24, 4 × 4 mm body, 0.5 mm pitch, exposed thermal pad (connected to VSS). Requires 0.47–1 μF capacitor between REGC and VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | ANI17/TI00/TxD1/TRGCLKA/INTP8/IVCMP10 | Analog input 17, timer input, UART1 TX, timer clock A, interrupt 8, comparator 1 input |
| P01 | ANI16/TO00/RxD1/TRGCLKB/TRJIO0/INTP10/IVCMP11 | Analog input 16, timer output, UART1 RX, timer clock B, JTAG I/O, interrupt 10, comparator 1 input |
| P10 | ANI20/SCK11/SCL11/TRDIOD1/(TxD2) | Analog input 20, CSI11 clock, I²C11 clock, timer D input, optional UART2 TX |
| P11 | ANI21/SI11/SDA11/TRDIOC1 | Analog input 21, CSI11 data in, I²C11 data, timer C input |
| P12 | ANI22/SO11/TRDIOB1 | Analog input 22, CSI11 data out, timer B input/output |
| P13 | ANI23/TxD2/SO20/TRDIOA1/IrTxD | Analog input 23, UART2 TX, CSI20 data out, timer A input/output, IrDA transmit |
| P14 | ANI24/RxD2/SI20/SDA20/TRDIOD0/(SCLA0)/IrRxD | Analog input 24, UART2 RX, CSI20 data in, I²C20 data, timer D input, optional I²C0 clock, IrDA receive |
| P15 | PCLBUZ1/SCK20/SCL20/TRDIOB0/(SDAA0) | Buzzer output, CSI20 clock, I²C20 clock, timer B input/output, optional I²C0 data |
| P20 | ANI0/AVREFP/INTP11/IVCMP12 | Analog input 0, ADC reference positive, interrupt 11, comparator 1 input |
| P21 | ANI1/AVREFM/IVCMP13 | Analog input 1, ADC reference negative, comparator 1 input |
| P22 | ANI2/ANO0/PGAI/IVCMP0 | Analog input 2, analog output 0, PGA input, comparator 0 input |
| P40 | TOOL0 | On-chip debug tool interface I/O |
| P50 | INTP1/SI00/RxD0/TOOLRxD/SDA00/TRGIOA/(TRJO0)/(TRDIOC1) | Interrupt 1, CSI00 data in, UART0 RX, debug RX, I²C00 data, timer group A I/O, optional JTAG output |
| P51 | INTP2/SO00/TxD0/TOOLTxD/TRGIOB/(TRDIOD1) | Interrupt 2, CSI00 data out, UART0 TX, debug TX, timer group B I/O, optional timer D input |
| P72 | PCLBUZ0/INTP4/SCK00/SCL00/TRJO0/(TxD1)/(VCOUT1) | Buzzer output, interrupt 4, CSI00 clock, I²C00 clock, timer J output, optional UART1 TX, comparator 1 output |
| P73 | INTP3/SSI00/(TRJIO0)/(RxD1)/(VCOUT0) | Interrupt 3, serial interface select, optional JTAG I/O, optional UART1 RX, comparator 0 output |
| REGC | Regulator capacitor terminal | Must connect to VSS via 0.47–1 μF capacitor - critical for internal voltage regulator stability |
| VDD | Main power supply | 1.6–5.5 V supply - powers core, digital peripherals, and analog circuitry |
| VSS | Ground | Reference for all digital and analog functions; connects to exposed die pad |
| RESET | Active-low reset input | Hardware reset trigger; also supports internal POR, LVD, watchdog, and illegal-instruction resets |
| P121 / P122 | X1 / X2 | Crystal oscillator inputs for main system clock (up to 20 MHz) |
| P137 | INTP0 | External interrupt 0 - highest-priority external interrupt input |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | 66 μA/MHz active current enables >1-year battery life in 10-second wake/sense cycles |
| Self-programmable flash | Supports in-field firmware updates and boot swap - no external programmer required |
| Background data flash rewrite | 1 million write cycles with BGO allows logging while executing application code |
| Hardware ELC linkage | 22 event sources can trigger peripherals directly - eliminates CPU polling overhead |
| Integrated analog front-end | Single-chip solution for sensor signal conditioning: PGA + dual comparator + 8/10-bit ADC + 8-bit DAC |
| Multi-voltage I/O | Ports support 1.8/2.5/3.0 V logic interfacing - simplifies mixed-voltage system design |
Applications
| Smart Thermostat Sensor Node | Industrial Motor Control Panel |
|---|---|
Use Scenario: Battery-powered wall-mounted thermostat collecting ambient temperature, humidity, and occupancy via analog sensors and IR remote. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition (ADC/PGA), local display (buzzer/PCLBUZ), wireless comms (UART/LIN), and RTC-based scheduling. Use Value: 0.57 μA STOP mode with RTC+LVD extends CR2032 battery life beyond 2 years; integrated LIN transceiver support enables HVAC bus integration. | Use Scenario: Compact HMI panel monitoring motor current, temperature, and fault status in factory automation cabinets. IC Role / Device Role / Timing Role: Real-time peripheral coordinator using ELC to trigger ADC sampling on overcurrent events and drive buzzer alerts via PWMOPA timers. Use Value: Hardware-linked timer-DAC-PGA chain reduces software latency to <10 μs for fast fault response; 1.6–5.5 V operation tolerates brown-out conditions on 24 V DC rails. |
| Portable Medical Glucometer | Home Appliance Power Management Unit |
Use Scenario: Handheld blood glucose meter with electrochemical strip interface, LCD, and USB charging detection. IC Role / Device Role / Timing Role: Analog signal processor acquiring strip current (PGA+ADC), calculating glucose concentration, driving buzzer feedback, and managing USB VBUS detection (comparator). Use Value: Internal 1.45 V reference and temperature sensor enable auto-calibration; 8-bit DAC drives precision bias for strip excitation without external components. | Use Scenario: Energy-efficient washing machine control board regulating pump/motor drivers, reading water level (ADC), and managing user interface LEDs/buzzer. IC Role / Device Role / Timing Role: System supervisor handling power sequencing, safety monitoring (LVD/RTC watchdog), and multi-channel PWM for LED dimming and buzzer tones. Use Value: Dual buzzer outputs (PCLBUZ0/PCLBUZ1) generate distinct alert tones; SNOOZE mode enables low-jitter PWM during partial wake states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F11B7EANA#20 | 64 KB flash (vs. 32 KB), same 24-pin HWQFN package, identical peripherals and power specs | Required when firmware exceeds 32 KB or future-proofing for feature expansion is needed | Select if bootloader, OTA stack, or complex UI increases code size beyond 32 KB limit |
| R5F11BBCANA#20 | 32-pin HWQFN, adds 8 more I/O pins, 5 more ADC channels (13 total), and extra UART/CSI/I²C channels | Suitable for designs needing expanded sensor count, multi-protocol comms, or GPIO headroom | Choose when 20 I/O is insufficient and board layout allows 5×5 mm footprint |
Compared with R5F11B7EANA#20, the R5F11B7CANA#20 trades flash capacity for cost and density; compared with R5F11BBCANA#20, it sacrifices I/O and analog channel count for minimal PCB area - making it optimal for ultra-compact, cost-sensitive, fixed-function endpoints.
Availability
R5F11B7CANA#20 is available at Aetrix Electronics and suitable for battery-powered sensor nodes, smart home controllers, and portable medical devices requiring stable component supply across long production lifecycles.
Supply support for R5F11B7CANA#20 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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G1F product line delivers true low-power 16-bit MCUs with integrated analog and communication peripherals - designed specifically for cost-sensitive, battery-operated, and industrial control applications demanding reliability and long-term supply.
FAQ
What is the maximum operating frequency and voltage range of the R5F11B7CANA#20?
The R5F11B7CANA#20 operates at up to 32 MHz using its high-speed on-chip oscillator and supports a wide supply voltage range of 1.6 V to 5.5 V. This enables direct compatibility with coin cells (e.g., CR2032), single Li-ion batteries, and standard 3.3 V or 5 V system rails without external regulators - a key enabler for ultra-low-power and multi-rail designs.
Does the R5F11B7CANA#20 include hardware debugging support?
Yes, the R5F11B7CANA#20 includes a full on-chip debug function accessible via the TOOL0, TOOLRxD, and TOOLTxD pins. It supports breakpoints, watchpoints, and memory inspection during development. However, Renesas advises against using this feature in mass-produced units due to potential flash wear-out beyond guaranteed rewrite cycles - production firmware should be verified and deployed without runtime debug activation.
How many analog input channels and what resolution does the ADC support on the R5F11B7CANA#20?
The R5F11B7CANA#20 integrates an 8/10-bit successive approximation register (SAR) ADC with 8 configurable analog input channels (ANI0–ANI7, ANI16–ANI24). Resolution is selectable per conversion, and the module includes an internal 1.45 V reference and integrated temperature sensor - eliminating need for external references in most sensor interface applications.
Can the R5F11B7CANA#20 operate in ultra-low-power STOP mode while maintaining RTC and LVD functionality?
Yes, the R5F11B7CANA#20 achieves 0.57 μA typical current consumption in STOP mode with both the real-time clock (RTC) and low-voltage detector (LVD) fully active. This allows precise timekeeping and brown-out monitoring during extended sleep periods - essential for periodic wake-up, calendar alarms, and fail-safe shutdown in energy-harvesting or battery-backed systems.
What package type and pin count does the R5F11B7CANA#20 use, and are there thermal considerations?
The R5F11B7CANA#20 uses a 24-pin HWQFN package (4 × 4 mm, 0.5 mm pitch) with an exposed thermal pad. The pad must be soldered to a VSS-connected copper area on the PCB for reliable thermal dissipation and electrical stability. Renesas specifies a 0.47–1 μF capacitor between the REGC pin and VSS - omission risks regulator instability and erratic operation.
R5F11B7CANA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G1F
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, IrDA, LINbus, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 17
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 5.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 8x8/10b; D/A 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F11B7CANA#20 FAQ
1.How can I place an order for R5F11B7CANA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F11B7CANA#20 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 R5F11B7CANA#20 reliable?
The price and inventory of R5F11B7CANA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F11B7CANA#20 is usually 5 days.
3.What payment methods are accepted for R5F11B7CANA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F11B7CANA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F11B7CANA#20?
R5F11B7CANA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F11B7CANA#20 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 R5F11B7CANA#20?
For technical support, including R5F11B7CANA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F11B7CANA#20 requirements.
6.How does Aetrix verify that R5F11B7CANA#20 is sourced from the original manufacturer or authorized distributors?
All R5F11B7CANA#20 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 R5F11B7CANA#20 meets industry standards.
7.What is the process for return or replacement of R5F11B7CANA#20?
All R5F11B7CANA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F11B7CANA#20, 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 R5F11B7CANA#20 part is unused and in its original packaging.
Return procedure for R5F11B7CANA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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