R5F10WLGAFB - RL78/L13 16-Bit 128KB Flash MCU | Renesas
料号： R5F10WLGAFB ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.46 | $6.46 |
| 10 | $5.78 | $57.80 |
| 100 | $5.12 | $512.00 |
| 500 | $4.55 | $2,275.00 |
| 1,000 | $4.02 | $4,020.00 |
R5F10WLGAFB 概述
An MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, non-volatile memory (flash/ROM), volatile memory (RAM), and a rich set of peripheral interfaces such as timers, ADCs, communication controllers, and—on RL78/L13—a segment LCD driver. The RL78 family sits within Renesas's low-power 16-bit MCU portfolio, which is widely adopted in metering, white goods, healthcare devices, and other segment-LCD applications that demand years of battery life.
The RL78/L13 supports three LCD driving voltage generation methods: external resistance division, capacitive split mode, and an internal voltage boost, enabling compatibility with a wide range of segment LCD panels. The device also integrates multiple low-power modes, a 12-bit A/D converter, and serial interfaces such as UART, I2C, and CSI, while achieving current consumption in the microamp range during LCD display operation.
Architecturally, the RL78 core uses a 3-stage pipelined CISC-style design with banking of register pages, achieving high code density and very low active current (typically sub-mA/MHz). The integrated LCD controller can drive up to a large number of segments, offloading display refresh from the CPU and enabling deep-sleep LCD retention. Operating voltage spans 1.6 V to 5.5 V with on-chip regulators, supporting direct connection to 2x or 3x AA/AAA cells or a single lithium primary cell.
Typical applications include home appliances with segment LCDs (washing machines, microwave ovens, air conditioners), utility meters (water/gas/electricity), medical measurement devices (blood pressure monitors, glucose meters), and industrial sensor readouts. The combination of segment LCD driver and ultra-low-power run mode positions the RL78/L13 as a strong fit for battery-powered human-machine interface designs.
When designing with this device, evaluate the maximum segment count of your target panel against the LCD controller's SEG/COM allocation, and confirm that the 24 MHz system clock and 128 KB flash budget are sufficient for your application code. For metering or measurement applications requiring higher ADC precision or larger memory, consider migrating to the RL78/L1A or RL78/G14 family.
This page synthesizes distributor pricing, RL78/L13 family alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： R5F10WLGAFB ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： R5F10WLGAFB （相同外形与封装尺寸） ——差异在于 A/D Converter, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
R5F10WLEAFB
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
R5F10WLCGFB
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
R5F10WLGAFB#30
✅ 直接替换✓ 有现货
$1.94 / 个
查看数据手册 →R5F10WLGAFB#50
✅ 直接替换📋 参考替代料（不在目录中）
R5F10WLGAFB#V0
✅ 直接替换📋 参考替代料（不在目录中）
R5F10WLGAFB#YW
✅ 直接替换📋 参考替代料（不在目录中）
R5F10WLGAFB 最大额定值与电气特性
| Product Family | RL78/L13 |
| CPU Core | RL78 (16-bit CISC) |
| Maximum CPU Frequency | 24 MHz |
| Program Flash Memory | 128 KB (128K x 8) |
| 封装 | 64-LFQFP (10x10 mm) |
| 引脚数量 | 64 |
| Operating Voltage | 1.6 V to 5.5 V |
| 工作温度 | -40 C to +85 C |
| Segment LCD Driver | Yes (external resistance / capacitive split / internal voltage boost) |
| Serial Interfaces | UART, I2C, CSI |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
R5F10WLGAFB 引脚配置
| 引脚 1 | P137/SEG38 — GPIO / Segment LCD output 38 |
| 引脚 2 | P40/SEG39 — GPIO / Segment LCD output 39 |
| 引脚 3 | P41/SEG40 — GPIO / Segment LCD output 40 |
| 引脚 4 | P42/SEG41 — GPIO / Segment LCD output 41 |
| 引脚 5 | P43/SEG42 — GPIO / Segment LCD output 42 |
| 引脚 6 | P44/SEG43 — GPIO / Segment LCD output 43 |
| 引脚 7 | P45/SEG44 — GPIO / Segment LCD output 44 |
| 引脚 8 | P46/SEG45 — GPIO / Segment LCD output 45 |
| 引脚 9 | P47/SEG46 — GPIO / Segment LCD output 46 |
| 引脚 10 | VSS — Ground |
| 引脚 11 | VDD — Positive power supply |
| 引脚 12 | RESET — Reset input (active low) |
| 引脚 13 | P50/AN0 — GPIO / Analog input 0 |
| 引脚 14 | P51/AN1 — GPIO / Analog input 1 |
| 引脚 15 | P52/AN2 — GPIO / Analog input 2 |
| 引脚 16 | P53/AN3 — GPIO / Analog input 3 |
| 引脚 17 | P54/AN4 — GPIO / Analog input 4 |
| 引脚 18 | P55/AN5 — GPIO / Analog input 5 |
| 引脚 19 | P56/AN6 — GPIO / Analog input 6 |
| 引脚 20 | P57/AN7 — GPIO / Analog input 7 |
| 引脚 21 | AVSS — Analog ground |
| 引脚 22 | AVDD — Analog power supply |
| 引脚 23 | P60/COM0 — GPIO / LCD common output 0 |
| 引脚 24 | P61/COM1 — GPIO / LCD common output 1 |
| 引脚 25 | P62/COM2 — GPIO / LCD common output 2 |
| 引脚 26 | P63/COM3 — GPIO / LCD common output 3 |
| 引脚 27 | P64/COM4 — GPIO / LCD common output 4 |
| 引脚 28 | P65/COM5 — GPIO / LCD common output 5 |
| 引脚 29 | P66/COM6 — GPIO / LCD common output 6 |
| 引脚 30 | P67/COM7 — GPIO / LCD common output 7 |
| 引脚 31 | P70/SEG0 — GPIO / Segment LCD output 0 |
| 引脚 32 | P71/SEG1 — GPIO / Segment LCD output 1 |
| 引脚 33 | P72/SEG2 — GPIO / Segment LCD output 2 |
| 引脚 34 | P73/SEG3 — GPIO / Segment LCD output 3 |
| 引脚 35 | P74/SEG4 — GPIO / Segment LCD output 4 |
| 引脚 36 | P75/SEG5 — GPIO / Segment LCD output 5 |
| 引脚 37 | P76/SEG6 — GPIO / Segment LCD output 6 |
| 引脚 38 | P77/SEG7 — GPIO / Segment LCD output 7 |
| 引脚 39 | P30/RXD0 — GPIO / UART0 receive |
| 引脚 40 | P31/TXD0 — GPIO / UART0 transmit |
| 引脚 41 | P32/INTP0 — GPIO / External interrupt 0 |
| 引脚 42 | P33/INTP1 — GPIO / External interrupt 1 |
| 引脚 43 | P34/INTP2 — GPIO / External interrupt 2 |
| 引脚 44 | P35/INTP3 — GPIO / External interrupt 3 |
| 引脚 45 | P10/SCL0 — GPIO / I2C clock |
| 引脚 46 | P11/SDA0 — GPIO / I2C data |
| 引脚 47 | P12/TOOL0 — GPIO / On-chip debug data |
| 引脚 48 | P13/TOOL1 — GPIO / On-chip debug clock |
| 引脚 49 | P14/SSI00 — GPIO / Serial interface 0 clock |
| 引脚 50 | P15/SSI01 — GPIO / Serial interface 0 receive |
| 引脚 51 | P16/SSI02 — GPIO / Serial interface 0 transmit |
| 引脚 52 | P17/SSI03 — GPIO / Serial interface 0 chip select |
| 引脚 53 | P20/TI00 — GPIO / Timer input 0 |
| 引脚 54 | P21/TO00 — GPIO / Timer output 0 |
| 引脚 55 | P22/TI01 — GPIO / Timer input 1 |
| 引脚 56 | P23/TO01 — GPIO / Timer output 1 |
| 引脚 57 | P24/TI10 — GPIO / Timer input 10 |
| 引脚 58 | P25/TO10 — GPIO / Timer output 10 |
| 引脚 59 | P26/TI11 — GPIO / Timer input 11 |
| 引脚 60 | P27/TO11 — GPIO / Timer output 11 |
| 引脚 61 | P00/SEG8 — GPIO / Segment LCD output 8 |
| 引脚 62 | P01/SEG9 — GPIO / Segment LCD output 9 |
| 引脚 63 | P02/SEG10 — GPIO / Segment LCD output 10 |
| 引脚 64 | P03/SEG11 — GPIO / Segment LCD output 11 |
典型应用
R5F10WLGAFB 适用于 6 应用s: Utility Water/Gas/Electricity Meters, Home Appliance Segment LCD Displays, Medical Measurement Devices, Industrial Sensor Readouts, HVAC Thermostats and Climate Controllers, Portable Health and Fitness Devices.
Utility Water/Gas/Electricity Meters
The R5F10WLGAFB is an ideal core for residential and industrial utility meters that must display cumulative consumption on a multi-digit segment LCD for 10+ years on a single battery. Its RL78 core delivers sub-mA/MHz active current and the integrated segment LCD driver operates in deep-sleep retention mode, drawing only microamps to maintain display. The 128 KB flash accommodates metrology firmware, anti-tamper logic, and wireless M-Bus or LoRaWAN stacks. With 1.6-5.5 V operation, the device pairs directly with a single lithium primary cell, eliminating boost circuitry and reducing BOM cost in high-volume meter deployments.
推荐
Home Appliance Segment LCD Displays
The R5F10WLGAFB targets white-goods and kitchen appliances with built-in segment LCDs, including washing machines, microwave ovens, rice cookers, and air conditioners. Its segment LCD controller supports three driving methods (external resistance division, capacitive split, internal voltage boost), enabling compatibility with virtually any panel supplier. The 24 MHz CPU can drive real-time UI logic for mode selection, timer/countdown, and sensor-driven control loops, while the integrated timers support motor PWM and inverter interfaces. The 64-LFQFP package provides ample I/O for keypad scanning, rotary encoders, and relay control outputs typical of major appliance designs.
推荐
Medical Measurement Devices
Battery-powered medical measurement devices such as blood pressure monitors, body-thermometers, and glucose meters benefit from the R5F10WLGAFB's ultra-low-power operation and integrated segment LCD for direct numeric readout. The RL78 core's deterministic interrupt latency ensures accurate timing of pulse measurements and sensor acquisitions, while the 12-bit ADC digitizes analog sensor signals with low noise. The 128 KB flash supports full measurement firmware, calibration tables, and historical data logging to internal EEPROM. The 1.6 V minimum supply enables operation from a single alkaline or lithium AA cell, critical for portable medical devices that must comply with IEC 60601-1 for years of battery life.
推荐
Industrial Sensor Readouts
Industrial 4-20 mA loop-powered transmitters, environmental monitors, and field sensor readouts with local LCD indicators use the R5F10WLGAFB to combine sensor signal conditioning, communication, and display refresh in a single chip. The integrated 12-bit ADC handles analog sensor inputs directly, while the UART/SPI/I2C interfaces drive external digital sensors and fieldbus transceivers. The segment LCD shows real-time values, units, and alarm states without external driver ICs, reducing PCB footprint and BOM. The -40 to +85 C operating range supports harsh industrial environments including outdoor enclosures and process-plant mounting.
推荐
HVAC Thermostats and Climate Controllers
Programmable thermostats and climate controllers use the R5F10WLGAFB to drive multi-segment LCDs showing temperature, humidity, mode, and schedule data, while running the PID control loop for HVAC actuators. The segment LCD's deep-sleep retention mode keeps the display visible when the rest of the system is sleeping, and the integrated low-power timers wake the MCU periodically for scheduled temperature sampling. The 128 KB flash accommodates weather-adaptive scheduling algorithms, while UART/I2C interfaces connect to wireless modules (Wi-Fi/Zigbee/BLE) for cloud-connected thermostats and room controllers.
推荐
Portable Health and Fitness Devices
Battery-powered step counters, calorie trackers, and basic fitness wearables with segment LCD displays use the R5F10WLGAFB for its ultra-low active current and integrated display controller. The device can drive pedometer, accelerometer interface, and stopwatch functions while maintaining a sub-microamp deep-sleep current when the user is not interacting. The 24 MHz CPU easily handles step-counting algorithms and history buffering to data flash. With 1.6 V minimum supply, the MCU pairs directly with coin-cell batteries, enabling small-form-factor wearables with multi-month battery life.
推荐
推荐产品汇总
工程参考数据： R5F10WLGAFB ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | R5F10WLEAFB | R5F10WLCGFB | R5F10WLGAFB#30 |
|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 64-LFQFP (10x10 mm) | 64-LFQFP (10x10 mm) - same | 64-LFQFP (10x10 mm) - same | 64-LFQFP (10x10 mm) - same |
| Program Flash | 128 KB | 192 KB | 32 KB | 128 KB |
| CPU Frequency | 24 MHz | 24 MHz | 24 MHz | 24 MHz |
| Operating Voltage | 1.6 V to 5.5 V | 1.6 V to 5.5 V | 1.6 V to 5.5 V | 1.6 V to 5.5 V |
| Segment LCD Driver | Yes (3 driving methods) | Yes (3 driving methods) | Yes (3 driving methods) | Yes (3 driving methods) |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Lifecycle Status | Active | Active | Active | Obsolete |
关键差异点
- 3-mode segment LCD driver （对比 R5F10WLCGFB)
- 128 KB flash with RL78/L13 LCD integration （对比 R5F10WLCGFB)
- Active production status vs legacy suffix （对比 R5F10WLGAFB#YW)
设计说明
Estimated: at 24 MHz active mode, the RL78/L13 core draws approximately 1-2 mA per MHz (sub-mA/MHz typical). Battery life for a metering design running 1 ms active per second from a 2.4 Ah lithium cell can exceed 10 years. Place a 0.1 uF decoupling capacitor within 5 mm of each VDD/VSS pair, and a 10 uF bulk capacitor near the MCU. For the analog supply (AVDD/AVSS), add a ferrite bead in series and a dedicated 0.1 uF bypass capacitor to reduce ADC switching noise. The internal voltage boost for LCD operation generates VLCD from VDD and should have a 1 uF capacitor on the VLCD pin.
The 64-LFQFP package has a 0.5 mm lead pitch and requires careful PCB layout to avoid solder bridges. Use NSMD (Non-Solder Mask Defined) pads with a 0.2-0.25 mm pad-to-pad gap, and route signals on inner layers to keep the outer layer as continuous copper pour for thermal dissipation. The exposed thermal pad (if present) should be soldered to a ground pour with thermal vias (5-9 vias in a 3x3 grid) to reduce theta-JA by 30-50%. Keep the crystal/oscillator traces short (under 10 mm) and guarded by a ground ring to minimize EMI.
When migrating firmware between R5F10WLGAFB and R5F10WLCGFB, the linker script must be re-validated because the smaller 32 KB flash on the WLCGFB requires careful ROM/RAM partitioning. Also, do not assume the suffix variant (#10 vs #30 vs #50) has identical fuse settings - always verify the option bytes against the latest Renesas hardware manual. For battery-powered designs, configure unused GPIO pins as analog inputs (set to high-impedance) rather than outputs, since floating outputs can leak 1-5 uA each.
合规信息
Standard industrial-grade MCU; not AEC-Q100 qualified. For automotive metering applications requiring AEC-Q100, contact Renesas for RL78/L1A automotive-grade variants.
