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Renesas R5F11B7CGNA#W0
- Part No.:
- R5F11B7CGNA#W0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F11B7CGNA#W0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,180
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Product details
Overview
R5F11B7CGNA#W0 from Renesas is a 24-pin HWQFN-packaged 32 KB flash RL78/G1F microcontroller with 5.5 KB RAM, 8-channel 10-bit ADC, 1-channel 8-bit DAC, and dual comparators. It operates from 1.6 V to 5.5 V across −40°C to +105°C, supports HALT/STOP/SNOOZE low-power modes (down to 0.57 μA in RTC+LVD), and targets industrial sensor nodes and battery-powered control systems.
For engineers reviewing the R5F11B7CGNA#W0 datasheet, R5F11B7CGNA#W0 pinout, R5F11B7CGNA#W0 application, or R5F11B7CGNA#W0 equivalent, key selection criteria include its 24-pin HWQFN (4 × 4 mm, 0.5 mm pitch) footprint, 32 MHz max CPU speed, integrated programmable gain amplifier (PGA), LIN-capable UART, and hardware event link controller (ELC) for deterministic peripheral triggering.
Technical Context
The R5F11B7CGNA#W0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and support for multiply/divide/MAC instructions. Its memory subsystem includes 32 KB code flash (1 KB block size), 4 KB data flash with background operation (BGO), and 5.5 KB on-chip RAM - enabling secure self-programming with boot swap and flash shield window functions.
Peripherals are orchestrated via the Event Link Controller (ELC), which links 22 event sources to designated functions without CPU intervention, and the Data Transfer Controller (DTC) supporting normal, repeat, and block transfer modes activated by interrupts. The high-accuracy ±1.0% on-chip oscillator (1–32 MHz) eliminates external crystal requirements for many timing-critical applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline, 0.03125 μs min instruction time @ 32 MHz |
| Flash Memory | 32 KB code flash with 1 KB erase blocks, security lock, and self-programming capability |
| Data Flash | 4 KB with background operation (BGO), 1M write cycles, 1.8–5.5 V programming voltage |
| ADC | 8-channel 10-bit SAR ADC with internal 1.45 V reference and temperature sensor |
| DAC | 1-channel 8-bit DAC with real-time output and 0–VDD analog output range |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD), SNOOZE (fast wake-up with peripheral operation) |
| Operating Voltage | 1.6–5.5 V (−40°C to +105°C industrial grade) |
Pinout & Package
Package: 24-pin HWQFN (4 × 4 mm, 0.5 mm pitch), exposed die pad (to be connected to VSS), REGC capacitor connection required (0.47–1 μF to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | ANI17/TI00/TxD1/TRGCLKA/INTP8/IVCMP10 | Primary timer input, UART1 transmit, analog input channel 17, interrupt pin 8, comparator 1 input |
| P01 | ANI16/TO00/RxD1/TRGCLKB/TRJIO0/INTP10/IVCMP11 | UART1 receive, timer output, analog input channel 16, interrupt pin 10, comparator 1 reference |
| P10 | ANI20/SCK11/SCL11/TRDIOD1/(TxD2) | I²C clock/output, SPI clock, analog input 20, optional UART2 transmit |
| P11 | ANI21/SI11/SDA11/TRDIOC1 | I²C data, SPI data input, analog input 21, timer I/O channel C1 |
| P12 | ANI22/SO11/TRDIOB1 | SPI data output, analog input 22, timer I/O channel B1 |
| P13 | ANI23/TxD2/SO20/TRDIOA1/IrTxD | UART2 transmit, IrDA transmit, SPI output, analog input 23 |
| P14 | ANI24/RxD2/SI20/SDA20/TRDIOD0/(SCLA0)/IrRxD | UART2 receive, IrDA receive, I²C data, analog input 24 |
| P15 | PCLBUZ1/SCK20/SCL20/TRDIOB0/(SDAA0) | Buzzer output, SPI/I²C clock, timer I/O B0, shared I²C address line |
| 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, DAC output 0, PGA input, comparator 0 input |
| P72 | PCLBUZ0/INTP4/SCK00/SCL00/TRJO0/(TxD1)/(VCOUT1) | Buzzer output, interrupt 4, SPI/I²C clock, timer output, comparator 1 output |
| P73 | INTP3/SSI00/(TRJIO0)/(RxD1)/(VCOUT0) | Interrupt 3, serial interface select, timer I/O, UART1 receive, comparator 0 output |
| VDD | Power supply | Main power supply (1.6–5.5 V); powers digital and analog circuits |
| VSS | Ground | Digital ground reference; must connect exposed die pad here |
| REGC | Regulator capacitor | Connect 0.47–1 μF capacitor to VSS to stabilize internal voltage regulator |
| RESET | Reset input | Active-low reset; internally pulled up; accepts external reset signal |
| X1/X2 | Crystal oscillator inputs | Supports external 1–20 MHz crystal for main system clock |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 0.57 μA in STOP mode with RTC + LVD active enables multi-year battery life in sensor endpoints |
| Hardware ELC & DTC | Enables zero-CPU-latency peripheral chaining (e.g., ADC trigger → DMA transfer → PWM update) for deterministic real-time response |
| Integrated analog front-end | 8-channel 10-bit ADC + 1-channel 8-bit DAC + 2 comparators + 1 PGA allows single-chip sensor signal conditioning and actuator control |
| LIN-compliant UART | UART0 supports LIN 2.2 protocol with automatic sync-break detection and checksum generation for automotive body electronics |
| Secure firmware update | Boot swap function and flash shield window enable safe over-the-air (OTA) updates without runtime corruption risk |
Applications
| Industrial Sensor Node | Smart Thermostat Control |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor with local display and wireless telemetry. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, calibration, display refresh, and low-power radio wake-up scheduling. Use Value: 0.57 μA STOP mode extends 2xAA battery life beyond 5 years; integrated ADC/DAC eliminates external signal chain components. | Use Scenario: Residential HVAC controller with touch interface, ambient sensing, and relay-driven valve/actuator outputs. IC Role / Device Role / Timing Role: System-on-chip managing UI responsiveness, PID loop execution, and precise 1 Hz RTC-based scheduling. Use Value: 12-bit interval timer and real-time clock with calendar support enable accurate time-of-day scheduling; LIN UART interfaces to HVAC bus. |
| Programmable Logic Controller (PLC) I/O Module | Medical Infusion Pump Monitor |
Use Scenario: DIN-rail mounted 24 V DC I/O expansion module with digital input filtering and relay drive. IC Role / Device Role / Timing Role: Dedicated I/O processor handling debounce, edge detection, and isolated output timing via TAU PWM channels. Use Value: 9-channel 16-bit Timer Array Unit provides independent timing for 8 digital inputs and 4 relay outputs; N-ch open-drain I/O supports 24 V logic interfacing. | Use Scenario: Safety-critical infusion pump with pressure sensing, motor control, and alarm generation. IC Role / Device Role / Timing Role: Fault-tolerant monitor co-processor verifying primary MCU behavior and independently validating flow rate via analog comparison. Use Value: Dual comparators with selectable internal/external references enable redundant pressure threshold checking; watchdog timer with dedicated low-speed oscillator ensures fail-safe shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F11B7EANA#U0 | 64 KB flash, same 24-pin HWQFN package, identical peripherals and pinout | Requires larger firmware images; no change to PCB or driver stack | Select when firmware exceeds 32 KB or future scalability is needed without layout revision |
| R5F11BBCGNA#00 | 32-pin HWQFN, 32 KB flash, adds 5 more I/O pins and 2 additional ADC channels | Requires PCB redesign; suited for designs needing expanded analog or GPIO resources | Choose when >20 I/O or >8 ADC channels are required, accepting footprint change |
Compared with R5F11B7EANA#U0, the R5F11B7CGNA#W0 offers identical functionality at lower flash density and tape-and-reel packaging, while R5F11BBCGNA#00 trades pin count for increased I/O and analog capability - making the R5F11B7CGNA#W0 optimal for space-constrained industrial controls where 24-pin footprint and 32 KB flash are sufficient.
Availability
R5F11B7CGNA#W0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, PLC I/O modules, and medical infusion pump monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F11B7CGNA#W0 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and infrastructure markets.
The RL78/G1F product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial control, sensor fusion, and battery-operated equipment - emphasizing analog integration, deterministic real-time performance, and robust operation from −40°C to +105°C.
FAQ
What is the maximum operating frequency of the R5F11B7CGNA#W0?
The R5F11B7CGNA#W0 supports a maximum CPU operation frequency of 32 MHz using the high-speed on-chip oscillator. This is achievable across the full industrial temperature range (−40°C to +105°C) at VDD ≥ 2.4 V. External crystal operation supports up to 20 MHz in HS mode. The minimum instruction execution time is 0.03125 μs at 32 MHz, enabling responsive real-time control in the R5F11B7CGNA#W0.
Does the R5F11B7CGNA#W0 support LIN bus communication?
Yes, the R5F11B7CGNA#W0 supports LIN bus communication through its UART0 peripheral, which implements LIN 2.2 protocol features including automatic sync-break detection, checksum generation (classic and enhanced), and configurable baud rates. This capability is confirmed in the RL78/G1F datasheet section 1.1 under "Serial interfaces" and applies directly to the R5F11B7CGNA#W0 as a member of the 24-pin RL78/G1F family.
How much SRAM and data flash does the R5F11B7CGNA#W0 include?
The R5F11B7CGNA#W0 integrates 5.5 KB of on-chip RAM and 4 KB of data flash memory. The data flash supports background operation (BGO), allowing program execution from code flash while rewriting data flash, and guarantees 1,000,000 write cycles at VDD = 1.8–5.5 V. These values are fixed across all RL78/G1F variants, including the R5F11B7CGNA#W0.
What are the low-power modes supported by the R5F11B7CGNA#W0?
The R5F11B7CGNA#W0 supports HALT, STOP, and SNOOZE low-power modes. HALT reduces current to 66 μA/MHz; STOP achieves 0.57 μA with RTC and LVD active; SNOOZE enables selected peripherals (e.g., ADC, UART) to operate while CPU sleeps. All three modes are fully documented for the R5F11B7CGNA#W0 in the RL78/G1F datasheet Rev.1.30, Section 1.1 "Ultra-low power consumption technology".
Is the R5F11B7CGNA#W0 pin-compatible with other RL78/G1F 24-pin variants?
Yes, the R5F11B7CGNA#W0 shares identical pin configuration and electrical characteristics with other 24-pin RL78/G1F devices such as R5F11B7CANA#U0 and R5F11B7EANA#U0. Pin mapping, I/O functions, and power/ground assignments are consistent across all 24-pin HWQFN variants, enabling direct substitution within the same memory density and temperature grade - confirmed in Figure 1-1 and Table 1-1 of the R5F11B7CGNA#W0 datasheet.
R5F11B7CGNA#W0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G1F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F11B7CGNA#W0 FAQ
1.How can I place an order for R5F11B7CGNA#W0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F11B7CGNA#W0 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 R5F11B7CGNA#W0 reliable?
The price and inventory of R5F11B7CGNA#W0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F11B7CGNA#W0 is usually 5 days.
3.What payment methods are accepted for R5F11B7CGNA#W0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F11B7CGNA#W0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F11B7CGNA#W0?
R5F11B7CGNA#W0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F11B7CGNA#W0 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 R5F11B7CGNA#W0?
For technical support, including R5F11B7CGNA#W0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F11B7CGNA#W0 requirements.
6.How does Aetrix verify that R5F11B7CGNA#W0 is sourced from the original manufacturer or authorized distributors?
All R5F11B7CGNA#W0 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 R5F11B7CGNA#W0 meets industry standards.
7.What is the process for return or replacement of R5F11B7CGNA#W0?
All R5F11B7CGNA#W0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F11B7CGNA#W0, 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 R5F11B7CGNA#W0 part is unused and in its original packaging.
Return procedure for R5F11B7CGNA#W0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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