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Renesas R5F10WMFAFB#30
- Part No.:
- R5F10WMFAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F10WMFAFB#30.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:842
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Product details
Overview
R5F10WMFAFB#30 from Renesas is an 80-pin RL78/L13 16-bit microcontroller with integrated LCD controller/driver, 96 KB flash, 4 KB data flash, and 6 KB RAM. It operates from 1.6 V to 5.5 V, delivers 31 DMIPS at 24 MHz, and achieves ultra-low power consumption (71 μA/MHz active, 0.61 μA in RTC+LVD mode), targeting battery-powered LCD-based consumer instrumentation.
For engineers reviewing the R5F10WMFAFB#30 datasheet, R5F10WMFAFB#30 pinout, R5F10WMFAFB#30 application, or R5F10WMFAFB#30 equivalent, key selection criteria include its 51-segment/8-common LCD drive capability, dual UART + I²C + CSI interfaces, 12-channel 8/10-bit ADC, and support for LIN-bus communication in embedded human-machine interface designs.
Technical Context
The R5F10WMFAFB#30 implements the RL78 CPU core - a CISC architecture with 3-stage pipeline and 1 MB address space - optimized for deterministic real-time control in resource-constrained LCD applications. It integrates a dedicated 16-bit timer KB20 for high-accuracy PWM generation and supports background operation during data flash rewriting via BGO.
Its power architecture includes HALT, STOP, and SNOOZE low-power modes, coupled with a ±1.0% accurate 24 MHz on-chip oscillator (VDD = 1.8–5.5 V, TA = −20 to +85°C) and configurable voltage detector with 14 selectable reset thresholds. The device uses peripheral I/O redirection (PIOR) to enable flexible pin function assignment without hardware changes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 1 MB address space |
| Flash / Data Flash / RAM | 96 KB code flash, 4 KB data flash (1M rewrite cycles), 6 KB SRAM |
| Operating Voltage | 1.6 V to 5.5 V - enables direct single-supply operation with 1.8 V logic peripherals |
| Performance | 31 DMIPS @ 24 MHz; min instruction time = 0.04167 µs (24 MHz HS oscillator) |
| LCD Drive | 51 segment × 4 common (or 47 × 8), with internal boost, capacitor-split, or resistor-divider bias methods |
| ADC & Comparator | 12-channel 8/10-bit ADC (VDD-referenced), 2-channel comparator with internal/external reference selection |
| Timers & RTC | Eight 16-bit TAU channels, one 16-bit KB20 timer, calendar RTC2 (99-year), 12-bit interval timer, watchdog |
| Communication | Three UARTs (one LIN-capable), two I²C/Simplified I²C channels, two CSI (SPI-like) interfaces |
Pinout & Package
Package: 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | SO00/TxD0/SEG43 | Primary serial output or UART0 transmit; also drives LCD segment 43 - shared function managed via PIOR register |
| P17 | SI00/RxD0/SDA00/SEG42 | Multi-role pin supporting SPI input, UART0 receive, I²C data, and LCD segment 42 - enables compact HMI peripheral integration |
| P60/P61 | SCLA0/SDAA0 | Dedicated I²C clock/data pins with slew-rate control - optimized for noise-immune bus communication up to 400 kHz |
| P31 | RTC1HZ/INTP3/SEG21 | Provides precise 1 Hz RTC output while serving as external interrupt or LCD segment - eliminates need for external timing crystal in basic calendar functions |
| P74–P77 | TKBO00/TKBO01-x/SEG16–SEG19 | Remote control carrier output pins with programmable frequency; simultaneously drive LCD segments - enables IR remote + display in single chip |
| REGC | Voltage regulator decoupling | Must connect to VSS via 0.47–1 µF capacitor - critical for stable internal LDO operation and LCD bias generation |
Key Features
| Feature | Design Value |
|---|---|
| True Low Power Platform | 71 μA/MHz active current and 0.61 μA RTC+LVD retention mode - extends coin-cell battery life to multi-year operation |
| Integrated LCD Controller/Driver | Configurable 51×4 or 47×8 segment drive with internal voltage boosting - eliminates external LCD bias IC and reduces BOM count |
| Background Data Flash Rewrite | BGO allows full CPU execution from code flash while updating 4 KB data flash - enables seamless firmware parameter updates without system stall |
| Flexible Pin Mapping | Peripheral I/O Redirection Register (PIOR) enables dynamic reassignment of UART, CSI, I²C, and timer functions to alternate pins - simplifies PCB layout and design reuse |
| Robust Communication Suite | Three UARTs (including LIN-compliant channel), dual I²C, and dual CSI - supports concurrent sensor comms, display update, and host interface in one MCU |
| High-Accuracy On-Chip Oscillator | ±1.0% tolerance over VDD = 1.8–5.5 V and TA = −20 to +85°C - removes need for external crystal in cost-sensitive applications |
Applications
| Smart Meter Display Interface | Portable Medical Monitor |
|---|---|
Use Scenario: Driving segmented LCD for utility meter showing kWh, tariff, and status icons under intermittent battery power. IC Role / Device Role / Timing Role: Primary system MCU executing metering firmware, managing LCD refresh at 60 Hz, and handling UART-based pulse counting interface. Use Value: Integrated LCD driver and 0.61 μA RTC+LVD mode eliminate external bias IC and reduce sleep current - enabling >10-year battery life with CR2032. |
Use Scenario: Compact blood pressure or glucose monitor with analog sensor front-end, button interface, and segmented display. IC Role / Device Role / Timing Role: Signal acquisition controller using 12-channel ADC for sensor inputs, key interrupt for tactile buttons, and RTC for timestamped readings. Use Value: On-chip 2-channel comparator with selectable references enables analog window detection without external comparators - reducing component count and board area. |
| Home Appliance Control Panel | Industrial Thermostat Display |
Use Scenario: Microwave oven or washing machine control panel with keypad, buzzer feedback, and multi-digit LCD. IC Role / Device Role / Timing Role: HMI processor managing key scan via KR0–KR7, driving buzzer via PCLBUZ0/1, and updating LCD segments via COM0–COM7. Use Value: Dedicated key interrupt (5–8 channels) and programmable clock/buzzer outputs allow responsive UI with zero external timing components. |
Use Scenario: DIN-rail mounted HVAC thermostat requiring reliable operation across −40°C to +105°C ambient. IC Role / Device Role / Timing Role: Industrial-grade system controller using 14-level LVD for brown-out protection, STOP mode for energy efficiency, and LIN-capable UART for fieldbus communication. Use Value: A/G grade qualification (−40°C to +105°C) and ±1.0% oscillator accuracy ensure consistent timing and communication integrity without calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10WMEAFA#30 | 64-pin LQFP (0.65 mm pitch), 48 KB flash, 2 KB RAM, 9-segment ADC, 36×4 LCD drive | Lower memory and segment count; suited for simpler displays with fewer digits/icons | Select when board space permits larger pitch package and application requires <50 KB flash and ≤36 segments |
| R5F10WMGAFB#30 | Same 80-pin LFQFP package, 128 KB flash, 8 KB RAM, identical peripheral set and LCD capability | Higher memory headroom for future firmware expansion or complex UI logic | Choose when long-term feature scalability or bootloader + application partitioning is required |
Compared with R5F10WMEAFA#30, the R5F10WMFAFB#30 provides 2× flash capacity and 51-segment LCD drive for richer HMI, while versus R5F10WMGAFB#30 it offers optimal cost/performance balance for mid-tier instrumentation without over-provisioning memory.
Availability
R5F10WMFAFB#30 is available at Aetrix Electronics and suitable for smart meter displays, portable medical monitors, and home appliance control panels requiring stable component supply, industrial temperature range support, and long-term manufacturing continuity.
Supply support for R5F10WMFAFB#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/L13 product line targets ultra-low-power LCD-based human-machine interfaces, integrating display drivers, precision timing, and robust communication to replace discrete MCU + display controller solutions.
FAQ
What is the maximum LCD segment count supported by the R5F10WMFAFB#30?
The R5F10WMFAFB#30 supports up to 51 segment outputs and 8 common outputs when configured in 8-common mode (47 segments active). This configuration is confirmed in the RL78/L13 datasheet Section 1.6 and enables multi-digit alphanumeric displays for consumer and industrial instrumentation without external LCD drivers. The R5F10WMFAFB#30 achieves this using its integrated LCD controller with switchable bias methods including internal voltage boosting.
Does the R5F10WMFAFB#30 support LIN bus communication?
Yes, the R5F10WMFAFB#30 supports LIN bus communication through UART2, which is explicitly designated as LIN-capable in the RL78/L13 datasheet Section 1.1. This UART channel meets ISO 17987-4 electrical and protocol requirements when paired with an external LIN transceiver. The R5F10WMFAFB#30's built-in baud rate generator and break-detection logic simplify implementation of LIN slave nodes in automotive and industrial control networks.
What is the operating temperature range for the R5F10WMFAFB#30?
The R5F10WMFAFB#30 is rated for consumer applications with an operating ambient temperature range of −40°C to +85°C. Its part number suffix "A" (in FB#30) confirms this grade per Renesas' ordering guide in Section 1.2 of the datasheet. For extended industrial use up to +105°C, the G-grade variant R5F10WMFGFB#30 must be selected - the R5F10WMFAFB#30 is not qualified beyond +85°C.
How many UART interfaces does the R5F10WMFAFB#30 include?
The R5F10WMFAFB#30 includes three UART interfaces: UART0, UART1, and UART2. UART2 is LIN-capable, while UART0 and UART1 support standard asynchronous communication. All three operate independently with dedicated registers and interrupt vectors. This triple-UART capability is verified in the RL78/L13 block diagram (Section 1.5.2) and peripheral summary (Section 1.6), enabling simultaneous host communication, sensor telemetry, and diagnostic logging in the R5F10WMFAFB#30.
Can the R5F10WMFAFB#30 perform ADC conversions during data flash programming?
Yes, the R5F10WMFAFB#30 supports concurrent ADC operation during data flash programming using Background Operation (BGO). When BGO is enabled, the CPU executes instructions from code flash while the data flash controller handles erase/write sequences. This allows real-time analog monitoring - such as battery voltage or temperature sensing - to continue uninterrupted during parameter updates in the R5F10WMFAFB#30's 4 KB data flash memory.
R5F10WMFAFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/L13
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 58
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10WMFAFB#30 FAQ
1.How can I place an order for R5F10WMFAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10WMFAFB#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 R5F10WMFAFB#30 reliable?
The price and inventory of R5F10WMFAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10WMFAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F10WMFAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10WMFAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10WMFAFB#30?
R5F10WMFAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10WMFAFB#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 R5F10WMFAFB#30?
For technical support, including R5F10WMFAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10WMFAFB#30 requirements.
6.How does Aetrix verify that R5F10WMFAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F10WMFAFB#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 R5F10WMFAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F10WMFAFB#30?
All R5F10WMFAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10WMFAFB#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 R5F10WMFAFB#30 part is unused and in its original packaging.
Return procedure for R5F10WMFAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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