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Renesas R5F11NMEAFB#30
- Part No.:
- R5F11NMEAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F11NMEAFB#30.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:357
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Product details
Overview
R5F11NMEAFB#30 from Renesas is an RL78/H1D 80-pin ultra-low-power MCU with integrated analog front-end (24-bit ΔΣ A/D, PGA, rail-to-rail op-amp, 8-/12-bit D/A), LCD controller/driver (36 seg × 8 com), and real-time clock 2. It delivers 33 DMIPS at 24 MHz, operates from 1.8 V to 5.5 V, and achieves 70.8 μA/MHz active current and 0.68 μA in Halt mode with RTC2 + LVD - optimized for portable healthcare and precision flow metering.
For engineers reviewing the R5F11NMEAFB#30 datasheet, R5F11NMEAFB#30 pinout, R5F11NMEAFB#30 application, or R5F11NMEAFB#30 equivalent, this page provides verified technical context, validated pin functions, confirmed low-power operating modes, exact AFE configuration (PGA0 + AMP0 + DAC0/DAC1), and direct alternative options for medical sensor interface and battery-powered metering designs.
Technical Context
The R5F11NMEAFB#30 implements the RL78 CISC CPU core with 3-stage pipeline, supporting multiply/divide and MAC instructions across a 1 MB address space. Its analog subsystem includes a dedicated 24-bit second-order ΔΣ A/D converter (SNDR = 85 dB TYP.) with programmable gain instrumentation amplifier (x1–x64) and offset-adjustment DAC, plus a separate 10-bit SAR A/D with internal 1.45 V reference and temperature sensor.
Power management integrates on-chip POR, 12-level LVD, HALT/STOP/SNOOZE modes, and dual voltage regulators: REGA (for analog circuitry) and SBIAS (0.5–2.2 V sensor bias). The device supports 3× UART/LIN, 4× I²C, 3× CSI/SPI, and event-driven peripheral control via ELC (18–26 event sources) and DTC (35 activation sources).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 CISC, 33 DMIPS @ 24 MHz, 1 MB address space, 8-bit × 32 register banks |
| Flash / RAM | 64 KB code flash + 4 KB data flash + 5.5 KB RAM - supports BGO, self-programming, and boot swap |
| AFE | 24-bit ΔΣ A/D (488 sps–15.625 ksps), PGA0 (x1–x64), AMP0 (rail-to-rail), DAC0 (8-bit), DAC1 (12-bit) |
| Low-power | 70.8 μA/MHz active, 0.68 μA Halt (RTC2 + LVD enabled), 1.8–5.5 V operation |
| LCD Driver | 36 segment × 8 common outputs; supports capacitor split, external resistor, and internal boost methods |
| Timers & Clock | TAU (8 ch), 12-bit interval timer, RTC2 (99-year calendar + alarm), high-speed on-chip oscillator (±1.0% @ 24 MHz) |
| Peripherals | 3× UART/LIN, 4× I²C, 3× CSI/SPI, 10-bit SAR A/D (3 ch), ELC, DTC, SBIAS regulator (0.5–2.2 V) |
Pinout & Package
Package: 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, consumer-grade (TA = −40 to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Digital power supply / ground | Core logic domain (1.8–5.5 V); must be decoupled per layout guidelines |
| AVDD / AVSS | Analog power supply / ground | Separate analog domain (2.7–5.5 V); tied to VDD/VSS but requires independent filtering |
| REGA / REGC | Analog regulator input / capacitor terminal | REGA powers AFE circuits; REGC requires 0.22 µF capacitor to AVSS |
| SBIAS | Sensor bias voltage output | Programmable 0.5–2.2 V output for bridge sensors or transducer excitation |
| PGA00P / PGA00N | PGA0 differential input | Primary instrumentation amp inputs supporting single-ended or differential configurations |
| AMP0O | Op-amp output | Rail-to-rail output stage for signal conditioning or sensor buffering |
| DAC0 / DAC1 | 8-bit / 12-bit D/A outputs | Independent R-2R ladder DACs for calibration, offset trimming, or analog stimulus |
| SEG0–SEG35 / COM0–COM7 | LCD segment/common drivers | Direct drive capability for up to 288 segments; configurable voltage generation |
| P30 / P31 / P35–P37 | GPIO with RTC1HZ / TI01/TO01 / SCK00/SCL00 / SI00/RxD0/SDA00 / SO00/TxD0 | Multiplexed I/O enabling simultaneous serial comms, timing, and LCD control |
Key Features
| Feature | Design Value |
|---|---|
| Integrated AFE with 24-bit ΔΣ ADC | Enables direct high-resolution sensor digitization (e.g., load cells, thermopiles) without external signal chain |
| Programmable SBIAS regulator | Eliminates need for discrete bias circuitry when powering Wheatstone bridges or MEMS sensors |
| RTC2 with calendar and alarm | Supports time-stamped measurements and scheduled wake-up in battery-operated devices |
| Multi-mode low-power operation | Halt mode at 0.68 μA allows years of operation on coin-cell batteries in portable diagnostics |
| On-chip LCD controller with 36×8 drive | Reduces BOM count and PCB area for compact handheld medical or utility meter displays |
Applications
| Portable Blood Glucose Monitor | Ultrasonic Flow Meter |
|---|---|
Use Scenario: Battery-powered handheld device measuring glucose concentration from electrochemical test strips. IC Role / Device Role / Timing Role: R5F11NMEAFB#30 serves as main controller, performing precision 24-bit A/D conversion of strip current, driving segmented LCD display, managing USB/LIN communication, and executing calibration algorithms. Use Value: Integrated PGA0 and DAC0 enable automatic offset compensation and gain scaling, reducing external component count by ≥4 passive parts per channel. | Use Scenario: Clamp-on ultrasonic flow meter measuring fluid velocity via transit-time difference in industrial pipelines. IC Role / Device Role / Timing Role: R5F11NMEAFB#30 acquires differential analog signals from ultrasonic transducers, applies digital filtering, computes time-of-flight, drives LCD with flow rate and diagnostics, and logs data to flash. Use Value: 85 dB SNDR and programmable SBIAS allow direct interface to low-output transducers, eliminating external instrumentation amps and bias networks. |
| Smart Water Meter | Portable ECG Recorder |
Use Scenario: Battery-operated residential water meter with pulse counting, pressure sensing, and RF telemetry. IC Role / Device Role / Timing Role: R5F11NMEAFB#30 reads Hall-effect pulses, conditions piezoresistive pressure sensor output via PGA0+ΔΣ ADC, manages RTC2-based timestamping, and controls RF module sleep/wake cycles. Use Value: 0.68 μA Halt mode extends 10-year battery life while maintaining calendar-corrected logging and alarm triggers. | Use Scenario: Wearable 3-lead ECG device capturing biopotential signals for arrhythmia detection. IC Role / Device Role / Timing Role: R5F11NMEAFB#30 configures PGA0 for high-gain (x64) differential ECG amplification, samples at 1.953 ksps in low-power ΔΣ mode, performs real-time QRS detection, and stores waveform snippets to data flash. Use Value: On-chip 12-bit DAC1 provides precise right-leg drive (RLD) feedback voltage, improving CMRR without external DAC or op-amp. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller-with-integrated-AFE applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F11NLFAFB#30 | 64-pin LFQFP, same AFE (PGA0+AMP0+DAC0/DAC1), identical 64 KB flash/5.5 KB RAM, but reduced I/O count (63 → 48 pins) and no SEG30–SEG35 outputs | Limited LCD drive (27 seg × 4 com vs. 36 × 8); fewer UART/CSI channels; suitable for space-constrained but lower-display-content meters | Select when board area is critical and full 36-segment LCD or 80-pin routing complexity is unnecessary |
| R5F11NGFAFB#30 | 48-pin LFQFP, same AFE and memory, but only 29 I/O pins, no SBIAS regulator, and no AMP0/PGA0 dedicated pins - shares analog resources with GPIO | No dedicated sensor bias; reduced analog input flexibility; intended for simpler sensor nodes without precision excitation requirements | Choose for cost-sensitive, low-channel-count applications where external bias or op-amp stages are acceptable |
Compared with R5F11NLFAFB#30 and R5F11NGFAFB#30, the R5F11NMEAFB#30 provides full 80-pin expandability, complete 36×8 LCD support, and guaranteed SBIAS/REGA/AFE pin isolation - making it the only option among the three qualified for Class II medical devices requiring traceable analog signal paths and layout-controlled noise immunity.
Availability
R5F11NMEAFB#30 is available at Aetrix Electronics and suitable for portable healthcare diagnostics, ultrasonic flow measurement, and smart utility metering requiring stable component supply, long-term lifecycle assurance, and full AFE integration.
Supply support for R5F11NMEAFB#30 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 RL78/H1D product line is engineered for ultra-low-power, high-precision analog-intensive applications - specifically targeting portable medical devices, energy metering, and industrial sensor nodes where integrated AFE, LCD, and sub-μA sleep modes are mandatory.
FAQ
What is the maximum resolution and data rate of the ΔΣ A/D converter in the R5F11NMEAFB#30?
The R5F11NMEAFB#30 features a 24-bit second-order ΔΣ A/D converter with typical SNDR of 85 dB. In normal mode, its output data rate ranges from 488 sps to 15.625 ksps; in low-power mode, it operates from 61 sps to 1.953 ksps - both fully supported by the integrated PGA0 and DAC0 for offset trimming.
Does the R5F11NMEAFB#30 include a dedicated sensor bias voltage source?
Yes, the R5F11NMEAFB#30 integrates an SBIAS regulator that outputs a programmable 0.5 V to 2.2 V bias voltage, designed specifically for exciting resistive sensors like strain gauges and pressure bridges - with dedicated SBIAS pin and required 0.22 µF capacitor to AVSS.
What LCD drive capability does the R5F11NMEAFB#30 support?
The R5F11NMEAFB#30 supports up to 36 segment outputs and 8 common outputs (288 segments total), with selectable drive methods: internal voltage boosting, capacitor split, or external resistor division - all managed by the integrated LCD controller/driver without external components.
What are the low-power operating modes available on the R5F11NMEAFB#30?
The R5F11NMEAFB#30 supports HALT mode (0.68 μA with RTC2 + LVD active), STOP mode, and SNOOZE mode - all enabled across its 1.8 V to 5.5 V operating range. HALT mode retains RAM and RTC2 functionality while disabling CPU and most peripherals.
Which communication interfaces are available on the R5F11NMEAFB#30 for sensor data transmission?
The R5F11NMEAFB#30 provides 3 UART/LIN channels (supporting LIN 2.2A), 4 I²C channels (including IICA0 with SMBus compatibility), and 3 CSI/SPI channels - enabling concurrent connection to digital sensors, display modules, and wireless transceivers without external bus arbitration.
R5F11NMEAFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/H1D
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, SPI, UART/USART
- Peripherals:
- LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 46
- 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):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 5x8/10b SAR, Sigma-Delta; D/A 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F11NMEAFB#30 FAQ
1.How can I place an order for R5F11NMEAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F11NMEAFB#30 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 R5F11NMEAFB#30 reliable?
The price and inventory of R5F11NMEAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F11NMEAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F11NMEAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F11NMEAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F11NMEAFB#30?
R5F11NMEAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F11NMEAFB#30 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 R5F11NMEAFB#30?
For technical support, including R5F11NMEAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F11NMEAFB#30 requirements.
6.How does Aetrix verify that R5F11NMEAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F11NMEAFB#30 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 R5F11NMEAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F11NMEAFB#30?
All R5F11NMEAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F11NMEAFB#30, 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 R5F11NMEAFB#30 part is unused and in its original packaging.
Return procedure for R5F11NMEAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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