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Renesas R5F10WMEAFB#10
- Part No.:
- R5F10WMEAFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F10WMEAFB#10.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:872
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Product details
Overview
R5F10WMEAFB#10 from Renesas is an 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch) 16-bit RL78/L13 microcontroller with integrated LCD controller/driver, 48 KB flash, 2 KB RAM, and 4 KB data flash. It operates from 1.6 V to 5.5 V, delivers 31 DMIPS at 24 MHz, and supports ultra-low-power modes (71 μA/MHz active, 0.61 μA RTC+LVD). It targets battery-powered LCD-based consumer devices such as smart meters, thermostats, and portable medical displays.
For engineers reviewing the R5F10WMEAFB#10 datasheet, R5F10WMEAFB#10 pinout, R5F10WMEAFB#10 application, or R5F10WMEAFB#10 equivalent, key selection criteria include its 51-segment/8-common LCD drive capability, dual UART + LIN support, 12-channel 10-bit ADC, on-chip RTC with calendar, and industrial-grade temperature range (–40°C to +85°C).
Technical Context
The R5F10WMEAFB#10 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. Its power management includes HALT, STOP, and SNOOZE modes, with POR, LVD (14-level selectable), and dedicated low-speed oscillator for watchdog operation.
Peripherals are tightly integrated for HMI-centric designs: the LCD controller supports internal voltage boosting, capacitor split, or external resistor division; the 12-channel ADC includes internal reference (1.45 V) and temperature sensor; and serial interfaces include CSI, UART0–UART3 (LIN-capable), I²C, and IICA - all configurable via peripheral I/O redirection register (PIOR).
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 | 48 KB code flash, 4 KB data flash (1M rewrite cycles), 2 KB RAM |
| Operating Voltage | 1.6 V to 5.5 V - enables single-supply operation across 1.8 V/3.3 V/5 V systems |
| Performance | 31 DMIPS @ 24 MHz; min instruction time = 0.04167 µs (24 MHz HS-osc) |
| LCD Drive | 51 segment / 8 common outputs; supports internal boost, cap-split, or resistor-divider biasing |
| ADC | 12-channel, 8/10-bit resolution, internal 1.45 V reference, integrated temperature sensor |
| Timers & RTC | Eight 16-bit TAU channels, one 16-bit KB20 timer, 12-bit interval timer, RTC2 with calendar (99-year), alarm, correction |
| Serial Interfaces | Four UARTs (UART0–UART3, LIN-supported), two CSI, two I²C/Simplified I²C, one IICA |
Pinout & Package
Package: 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 digital I/O | Configurable as CMOS I/O, N-ch open-drain (VDD-rated), or TTL input; supports buzzer output (PCLBUZ0/1), tool interface (TOOLTxD/TOOLRxD) |
| P10–P17 | Port 1 digital I/O + analog inputs | Hosts ANI22–ANI25 (ADC inputs), SEG35–SEG42 (LCD segments), SCK00/SCL00 (I²C clock) |
| P20–P27 | Analog input & LCD segment ports | Includes AVREFP/AVREFM (ADC reference), ANI0–ANI1, ANI16–ANI21, SEG29/SEG33–SEG34 |
| P30–P35 | HMI timing & communication | RTC1HZ output, REMOOUT (remote carrier), TI03/TO03, RxD3/TxD3 (UART3), SEG20–SEG25 |
| P40–P47 | Comparator, reference, debug | IVREF0/IVREF1, IVCMP0/IVCMP1, TOOL0, SI10/SO10/SCK10 (CSI10), SDA10/SCL10 (I²C10) |
| P50–P57 | Interrupt & LCD segment I/O | INTP1–INTP7, SEG4–SEG11, TI00–TI07/TO00–TO07 (timer I/O), TKBO01-0–TKBO01-2 (KB20 outputs) |
| P60/P61 | I²C bus interface | SCLA0/SDAA0 - dedicated pins for I²C bus arbitration and high-noise immunity |
| P70–P77 | Key return & LCD segment | KR0–KR7 (key scan inputs), SEG12–SEG19, TKBO00 (KB20 output) |
| COM0–COM7 | LCD common outputs | Drive up to 8 LCD commons; configurable for multiplex ratio and bias method |
| VDD/VSS/REGC | Power & regulation | VDD (1.6–5.5 V), VSS (ground), REGC (connect to VSS via 0.47–1 µF capacitor for internal regulator stability) |
| X1/X2/XT1/XT2 | Crystal oscillator inputs | X1/X2: main system clock (1–20 MHz); XT1/XT2: subsystem clock (32.768 kHz) |
Key Features
| Feature | Design Value |
|---|---|
| True Low Power Platform | 71 μA/MHz active current; 0.61 μA in RTC+LVD STOP mode - extends battery life in portable LCD devices |
| Integrated LCD Controller/Driver | Drives up to 408 segments (51×8) without external bias circuitry; supports three bias methods for flexible display integration |
| On-chip Data Flash | 4 KB background-operation data flash (1M write cycles, 1.8–5.5 V programming) enables robust firmware parameter storage and field updates |
| Dual UART + LIN Support | UART0–UART3 with LINSEL pin allows direct LIN bus node implementation without external transceiver in automotive body electronics |
| Peripheral I/O Redirection (PIOR) | Runtime remapping of serial, timer, and interrupt functions to alternate pins - simplifies PCB layout and enables pin reuse across variants |
| Self-Programming with Boot Swap | Secure in-system reprogramming with boot swap function and flash shield window - supports safe OTA firmware upgrades |
Applications
| Smart Energy Meters | Programmable Thermostats |
|---|---|
Use Scenario: Residential electricity/gas meter with segmented LCD display, keypad input, and RS-485/LIN communication. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, driving 4-digit LCD, scanning 8-key matrix, managing UART/LIN comms, and logging consumption data to data flash. Use Value: Integrated RTC with calendar and 4 KB data flash enable accurate time-stamped usage logging; ultra-low STOP-mode current (<1 µA) preserves backup battery for >10 years. |
Use Scenario: HVAC control panel with 2-line LCD, rotary encoder, temperature/humidity sensing, and wireless gateway interface. IC Role / Device Role / Timing Role: HMI processor handling LCD refresh, ADC sampling (temp/humid), key interrupt debouncing, UART-to-Zigbee bridge, and RTC-based scheduling. Use Value: 12-channel ADC with internal reference eliminates external sensor signal conditioning; 51-segment LCD drive supports custom icons and multi-language glyphs without external driver IC. |
| Portable Medical Monitors | Industrial Panel Meters |
Use Scenario: Battery-powered pulse oximeter or blood glucose meter with monochrome LCD, tactile buttons, and Bluetooth LE interface. IC Role / Device Role / Timing Role: Real-time sensor acquisition controller with LCD rendering, buzzer alerts, low-voltage detection, and secure firmware update via data flash. Use Value: 1.6 V minimum operating voltage ensures full functionality down to near-dead battery; integrated comparator and temperature sensor enable self-calibration and safety monitoring. |
Use Scenario: DIN-rail mounted process indicator with 4-digit LCD, 4–20 mA input, relay control, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Isolated front-end controller performing analog input scaling, LCD update, relay timing, and Modbus protocol stack execution. Use Value: Dual UARTs allow simultaneous Modbus master/slave operation; 80-pin package provides ample GPIO for discrete I/O expansion and noise-immune layout separation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10WMGAFB#10 | 128 KB flash, 8 KB RAM, same 80-pin LFQFP package and peripheral set | Supports larger firmware (e.g., embedded GUI stacks, multiple communication protocols) | Select when future firmware growth or complex algorithm execution (e.g., sensor fusion) requires >48 KB code space |
| R5F10WMEGFB#10 | Identical flash/RAM/peripherals; rated for –40°C to +105°C industrial temp range | Required for deployment in high-ambient environments (e.g., factory floor, automotive under-hood) | Choose for extended temperature operation where A-grade (–40°C to +85°C) thermal margin is insufficient |
Compared with R5F10WMEAFB#10, the R5F10WMGAFB#10 offers scalable memory headroom for feature-rich firmware, while the R5F10WMEGFB#10 maintains identical functionality with guaranteed operation up to +105°C - enabling drop-in qualification in harsher thermal environments without redesign.
Availability
R5F10WMEAFB#10 is available at Aetrix Electronics and suitable for smart energy meters, programmable thermostats, and portable medical monitors requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F10WMEAFB#10 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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The RL78/L13 product line is engineered specifically for ultra-low-power LCD-based human-machine interfaces, integrating display control, sensing, communication, and real-time processing in a single chip for cost-sensitive, battery-operated consumer and industrial devices.
FAQ
What is the maximum LCD segment count supported by the R5F10WMEAFB#10?
The R5F10WMEAFB#10 supports up to 51 segment outputs and 8 common outputs, enabling drive of up to 408 segments (51 × 8) in static or multiplexed configurations. The LCD controller supports internal voltage boosting, capacitor split, or external resistor division biasing - allowing direct connection to common STN/FSTN LCD modules without external driver ICs. This capability is confirmed in the RL78/L13 datasheet Section 1.6 and Figure 1-2 block diagram.
Does the R5F10WMEAFB#10 support LIN bus communication?
Yes, the R5F10WMEAFB#10 supports LIN bus communication via UART2 with dedicated LINSEL pin functionality. When LINSEL is asserted, UART2 operates in LIN 2.2-compliant mode with automatic sync-break detection, checksum generation, and identifier filtering - eliminating need for external LIN transceiver in slave-node applications. This is documented in Section 1.1 Features and Section 12.3.2 of the RL78/L13 User's Manual.
What are the power supply requirements for the R5F10WMEAFB#10?
The R5F10WMEAFB#10 operates from a single supply of 1.6 V to 5.5 V across –40°C to +85°C ambient temperature. The REGC pin must be connected to VSS via a 0.47 µF to 1 µF ceramic capacitor to stabilize the internal voltage regulator. Power-on-reset triggers at ~1.51 V (typ.), and the on-chip voltage detector (LVD) offers 14 programmable threshold levels for brown-out detection and reset generation.
How many UART interfaces does the R5F10WMEAFB#10 provide?
The R5F10WMEAFB#10 integrates four independent UART channels: UART0, UART1, UART2 (LIN-capable), and UART3. UART0 and UART1 share pins with CSI and I²C peripherals but are fully functional in dedicated mode; UART2 includes LINSEL pin support; UART3 uses dedicated P34/P35 pins. All support standard asynchronous framing, baud rate generation, and interrupt-driven operation per Section 1.1 and Table 1-2 of the datasheet.
Is the R5F10WMEAFB#10 pin-compatible with other RL78/L13 80-pin variants?
Yes, the R5F10WMEAFB#10 shares identical 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch) mechanical footprint and pinout with all other R5F10WMx variants (e.g., R5F10WMAAFB#10, R5F10WMGAFB#10). Electrical and functional compatibility is maintained across the family - differences are limited to flash/RAM size and temperature grade - enabling hardware reuse across product tiers without PCB revision.
R5F10WMEAFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/L13
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10WMEAFB#10 FAQ
1.How can I place an order for R5F10WMEAFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10WMEAFB#10 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 R5F10WMEAFB#10 reliable?
The price and inventory of R5F10WMEAFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10WMEAFB#10 is usually 5 days.
3.What payment methods are accepted for R5F10WMEAFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10WMEAFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10WMEAFB#10?
R5F10WMEAFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10WMEAFB#10 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 R5F10WMEAFB#10?
For technical support, including R5F10WMEAFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10WMEAFB#10 requirements.
6.How does Aetrix verify that R5F10WMEAFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F10WMEAFB#10 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 R5F10WMEAFB#10 meets industry standards.
7.What is the process for return or replacement of R5F10WMEAFB#10?
All R5F10WMEAFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10WMEAFB#10, 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 R5F10WMEAFB#10 part is unused and in its original packaging.
Return procedure for R5F10WMEAFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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