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Renesas R5F11B7EANA#20
- Part No.:
- R5F11B7EANA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F11B7EANA#20.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,470
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Product details
Overview
R5F11B7EANA#20 from Renesas is a 24-pin RL78/G1F 16-bit microcontroller with 64 KB flash, 5.5 KB RAM, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates an 8/10-bit ADC (8 channels), 8-bit DAC (1 channel), 2 comparators, PGA, 9×16-bit timers, UART/LIN, I²C, CSI, IrDA, and operates from 1.6–5.5 V for battery-powered consumer sensor nodes.
For engineers reviewing the R5F11B7EANA#20 datasheet, R5F11B7EANA#20 pinout, R5F11B7EANA#20 application, or R5F11B7EANA#20 equivalent, key selection criteria include its 24-pin HWQFN (4×4 mm, 0.5 mm pitch) package, A-grade −40 to +85°C temperature range, 32 MHz max CPU speed, and integrated analog peripherals enabling compact, low-power embedded control without external signal conditioning.
Technical Context
The R5F11B7EANA#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 supports self-programming with boot swap and flash shield window functions, and background data flash rewriting (BGO) at 1.8–5.5 V.
Its peripheral set includes a Data Transfer Controller (DTC) with 30 activation sources, Event Link Controller (ELC) supporting 22 event signals, and programmable I/O redirection via PIOR0–PIOR3 registers - enabling flexible signal routing without hardware redesign.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at up to 32 MHz |
| Flash / RAM | 64 KB code flash (1 KB blocks), 4 KB data flash, 5.5 KB on-chip RAM - sufficient for firmware + logging in resource-constrained devices |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD - extends battery life in always-on sensing applications |
| Analog Peripherals | 8-channel 8/10-bit ADC (VDD-referenced), 1-channel 8-bit DAC (0–VDD output), 2 comparators, 1 PGA - supports closed-loop analog control without external ICs |
| Timers & Clocks | 9×16-bit timers (TAU, RJ, RD, RG, RX), RTC with calendar/alarm, high-accuracy ±1.0% on-chip oscillator (1–32 MHz) - enables precise timing and low-jitter PWM generation |
| Serial Interfaces | 1×UART/LIN, 1×I²C, 1×CSI (SPI-compatible), 1×IrDA - provides interoperability with sensors, displays, and automotive LIN networks |
| Supply & Temp | 1.6–5.5 V single supply; −40 to +85°C operating range (A-grade) - compatible with coin-cell, Li-ion, and USB-powered systems |
Pinout & Package
Package: 24-pin HWQFN (4 × 4 mm, 0.5 mm pitch), exposed die pad (to be connected to VSS), REGC requires 0.47–1 μF capacitor to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | ANI17/TI00/TxD1/TRGCLKA/INTP8/SDAA0/IVCMP10 | Primary analog input (17), timer input, UART1 TX, event trigger clock, interrupt pin, I²C data, comparator reference |
| P01 | ANI16/TO00/RxD1/TRGCLKB/TRJIO0/INTP10/IVCMP11 | Analog input (16), timer output, UART1 RX, event trigger clock, JTAG I/O, interrupt, comparator reference |
| P10 | ANI20/SCK11/SCL11/TRDIOD1/(TxD2) | Analog input (20), SPI/I²C clock, timer input/output - shared function pin configurable via PIOR registers |
| P11 | ANI21/SI11/SDA11/TRDIOC1 | Analog input (21), SPI/I²C data in, timer input/output - supports flexible peripheral mapping |
| P12 | ANI22/SO11/TRDIOB1 | Analog input (22), SPI/I²C data out, timer input/output - enables dual-role signal routing |
| P13 | ANI23/TxD2/SO20/TRDIOA1/IrTxD | Analog input (23), UART2 TX, SPI data out, timer I/O, IrDA transmit - consolidates communication and sensing |
| P14 | ANI24/RxD2/SI20/SDA20/TRDIOD0/(SCLA0)/IrRxD | Analog input (24), UART2 RX, SPI/I²C data in, I²C clock - supports multi-protocol serial with analog front-end |
| P15 | PCLBUZ1/SCK20/SCL20/TRDIOB0/(SDAA0) | Buzzer clock output, SPI/I²C clock, timer I/O, I²C data - enables audio feedback and synchronized peripherals |
| P20 | ANI0/AVREFP/INTP11/IVCMP12 | Analog input (0), ADC reference positive, interrupt, comparator input - dedicated reference path improves ADC accuracy |
| P21 | ANI1/AVREFM/IVCMP13 | Analog input (1), ADC reference negative, comparator input - supports ratiometric measurements |
| P22 | ANI2/ANO0/PGAI/IVCMP0 | Analog input (2), DAC output (0), PGA input, comparator 0 input - integrates signal chain from sensing to actuation |
| P72 | PCLBUZ0/INTP4/SCK00/SCL00/TRJO0/(TxD1)/(VCOUT1) | Buzzer clock, interrupt, SPI/I²C clock, timer output, comparator 1 output - multiplexed for compact board layout |
| P73 | INTP3/SSI00/(TRJIO0)/(RxD1)/(VCOUT0) | Interrupt, serial interface select, JTAG I/O, UART1 RX, comparator 0 output - enables debug and comms sharing |
| RESET | Reset input | Active-low reset with internal POR/LVD - ensures reliable startup under brown-out conditions |
| VDD / VSS | Power / Ground | Single 1.6–5.5 V supply; VSS connects to exposed pad for thermal and noise performance |
| REGC | Regulator capacitor terminal | Must connect 0.47–1 μF capacitor to VSS - stabilizes internal voltage regulator for analog stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Enables sub-μA sleep states while retaining RTC and LVD functionality for wake-on-event sensor monitoring |
| Background data flash rewriting (BGO) | Allows firmware updates or parameter storage without halting CPU execution - critical for continuous operation |
| Programmable I/O redirection (PIOR0–PIOR3) | Permits dynamic remapping of peripheral functions to alternate pins - reduces PCB redesign risk during development |
| Integrated analog front-end (ADC/DAC/PGA/Comparator) | Eliminates need for external signal conditioning in temperature, pressure, or battery-monitoring applications |
| On-chip debug with flash safety controls | Supports full debugging while preventing accidental overwrites via flash shield window and block protection |
Applications
| Smart Home Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered CO₂, humidity, and temperature sensor node transmitting data via UART to gateway. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, calibration, and serial protocol handling; RTC maintains accurate timestamping. Use Value: 66 μA/MHz active current and 0.57 μA STOP mode extend 2-AA battery life to >2 years; integrated ADC/DAC eliminates external signal chain. | Use Scenario: Wearable pulse oximeter with analog front-end, buzzer alert, and low-power Bluetooth interface. IC Role / Device Role / Timing Role: Analog signal processor (PGA + ADC), buzzer driver (PCLBUZ0/1), and UART bridge to BLE module. Use Value: Single-chip solution reduces BOM count and board area; ±1.0% on-chip oscillator meets medical timing requirements without crystal. |
| Industrial Control Panel | Energy Meter Interface |
Use Scenario: DIN-rail mounted HMI panel with pushbutton inputs, LED indicators, and LIN bus communication to PLC. IC Role / Device Role / Timing Role: LIN transceiver controller (UART/LIN mode), key interrupt handler (INTP0–INTP11), and LED/PWM driver. Use Value: LIN support enables direct connection to industrial networks; 13 timer outputs drive multiple LEDs and buzzers without external logic. | Use Scenario: Smart meter auxiliary interface capturing voltage/current samples and communicating via UART to main MCU. IC Role / Device Role / Timing Role: High-precision analog acquisition engine (8/10-bit ADC with AVREFP/M), real-time clock for billing timestamps. Use Value: Dedicated AVREFP/AVREFM pins enable ratiometric measurement accuracy; RTC calendar supports tariff scheduling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F11B7CANA#20 | Same 24-pin HWQFN package and peripherals, but 32 KB flash (vs. 64 KB) | Suitable for simpler firmware with smaller code footprint; no change to PCB or drivers | Select when application fits within 32 KB and cost optimization is prioritized |
| R5F11BBEANA#20 | 32-pin HWQFN package, same 64 KB flash, adds 5 more I/O pins and 2 additional ADC channels | Required when design needs >20 GPIO or >8 analog inputs; larger footprint and layout change needed | Choose when scalability for future feature expansion is required |
Compared with R5F11B7CANA#20, the R5F11B7EANA#20 provides double flash capacity for complex algorithms or OTA updates; versus R5F11BBEANA#20, it offers identical core performance in a space-constrained 24-pin footprint ideal for miniaturized designs.
Availability
R5F11B7EANA#20 is available at Aetrix Electronics and suitable for smart home sensors, portable medical monitors, industrial HMIs, energy meter interfaces, and battery-powered IoT edge nodes requiring stable component supply across production lifecycles.
Supply support for R5F11B7EANA#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G1F product line delivers true low-power embedded control with integrated analog peripherals, targeting cost-sensitive, battery-operated consumer and industrial applications requiring long runtime and small form factor.
FAQ
What is the maximum CPU clock frequency supported by the R5F11B7EANA#20?
The R5F11B7EANA#20 supports a maximum CPU operation frequency of 32 MHz using the high-speed on-chip oscillator. This is confirmed in the datasheet's "Features" section and "Outline" chapter, where minimum instruction execution time is specified as 0.03125 μs at 32 MHz. The device also supports lower-frequency modes including subsystem clock operation at 32.768 kHz for ultra-low-power RTC use.
Does the R5F11B7EANA#20 include a hardware real-time clock (RTC) with calendar function?
Yes, the R5F11B7EANA#20 includes a dedicated real-time clock (RTC) peripheral with full calendar support for 99 years, alarm function, and clock correction capability. This is explicitly listed under "Timer" features in Section 1.1 and verified in the block diagram (Page 12) and functional outline (Page 13), where RTC1HZ output and calendar functionality are confirmed for all RL78/G1F variants including 24-pin products.
What analog-to-digital converter resolution and channel count does the R5F11B7EANA#20 provide?
The R5F11B7EANA#20 integrates an 8/10-bit resolution A/D converter with 8 analog input channels (ANI0–ANI7). This is specified in Section 1.1 ("A/D converter") and confirmed in the functional outline (Page 14), which states "8 channels" for 24-pin products (R5F11B7x). The ADC operates across the full 1.6–5.5 V supply range and supports internal reference voltage (1.45 V) and temperature sensor input.
Can the R5F11B7EANA#20 perform background data flash rewriting while executing code from program memory?
Yes, the R5F11B7EANA#20 supports background operation (BGO) for data flash memory, allowing instructions to be executed from program memory while simultaneously rewriting the 4 KB data flash. This capability is documented in Section 1.1 ("Data flash memory") and confirmed in the functional outline (Page 13), where BGO is listed as a standard feature across all RL78/G1F packages, including the 24-pin R5F11B7x series.
What is the operating temperature range and grade designation for the R5F11B7EANA#20?
The R5F11B7EANA#20 is an A-grade device rated for −40 to +85°C ambient operating temperature, intended for consumer applications. This is defined in Section 1.2 ("Ordering Information"), where the "A" suffix in the part number denotes the consumer temperature grade, and confirmed in Section 1.1 ("Operating ambient temperature") and electrical specifications (Page 15).
R5F11B7EANA#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:
- 64KB (64K 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:
R5F11B7EANA#20 FAQ
1.How can I place an order for R5F11B7EANA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F11B7EANA#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 R5F11B7EANA#20 reliable?
The price and inventory of R5F11B7EANA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F11B7EANA#20 is usually 5 days.
3.What payment methods are accepted for R5F11B7EANA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F11B7EANA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F11B7EANA#20?
R5F11B7EANA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F11B7EANA#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 R5F11B7EANA#20?
For technical support, including R5F11B7EANA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F11B7EANA#20 requirements.
6.How does Aetrix verify that R5F11B7EANA#20 is sourced from the original manufacturer or authorized distributors?
All R5F11B7EANA#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 R5F11B7EANA#20 meets industry standards.
7.What is the process for return or replacement of R5F11B7EANA#20?
All R5F11B7EANA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F11B7EANA#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 R5F11B7EANA#20 part is unused and in its original packaging.
Return procedure for R5F11B7EANA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F11B7EANA#20 Tags
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