R5F10WLCAFB - 16-Bit 24MHz RL78/L13 MCU 32KB Flash 64-LFQFP | Renesas
料号： R5F10WLCAFB ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.55 | $25.50 |
| 100 | $2.18 | $218.00 |
| 500 | $1.92 | $960.00 |
| 1,000 | $1.68 | $1,680.00 |
R5F10WLCAFB 概述
A microcontroller (MCU) is a single-chip computer containing a CPU, memory (flash/RAM), and peripherals (timers, ADC, communication interfaces, LCD driver). The RL78 family is positioned in the 16-bit ultra-low-power MCU segment, hierarchically classified as: MCU -> microcontroller -> embedded processor -> semiconductor IC. The RL78/L13 specifically targets human-machine interface (HMI) applications where segment LCDs are used for display.
Key features include 32KB flash, 2KB SRAM (typical for L13 family), 4-channel DMA, multiple timers, 10-bit A/D converter, on-chip segment LCD controller with 4 common x 36 segment (typical) capability, three LCD bias generation methods, and ultra-low-power operation with multiple standby modes (HALT, STOP, SNOOZE). The wide operating voltage range (1.6V to 5.5V typical for RL78/L13) supports battery-powered and energy-harvesting designs.
The RL78 core uses a 3-stage pipeline Harvard architecture with single-cycle execution of most instructions, achieving 41.6ns minimum instruction cycle at 24MHz. Integrated peripherals include UART, I2C, CSI/SPI, and a multi-channel 10-bit ADC with up to 10 channels (per family datasheet). The on-chip debug function enables in-system programming and real-time debugging.
Typical applications include home appliance LCD displays (washing machines, microwave ovens, refrigerators), measurement instruments with LCD readouts, battery-powered portable devices, industrial sensor modules with LCD indication, and metering equipment. The built-in segment LCD driver eliminates the need for an external LCD controller, reducing BOM cost and PCB area in HMI designs.
When designing with this part, evaluate the LCD drive method that best matches the panel (external resistor divider is simplest; capacitive split reduces current; internal voltage boost eliminates external components). The SNOOZE mode allows peripheral operation during CPU STOP, enabling periodic sensor sampling while maintaining ultra-low system current consumption for battery applications.
This page synthesizes distributor pricing, drop-in RL78/L13 family alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： R5F10WLCAFB ——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： R5F10WLCAFB （相同外形与封装尺寸） ——差异在于 Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
R5F10WLGAFA
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
R5F10WLEAFB
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
R5F10WLGAFB
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.02 / 个
查看数据手册 →R5F10WLEDFA
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
R5F10WLCAFB#50
✅ 直接替换📋 参考替代料（不在目录中）
R5F10WLCAFB 最大额定值与电气特性
| Core Architecture | RL78 (16-bit CISC) |
| Family | RL78/L13 |
| 最大时钟频率 | 24 MHz |
| Program Memory (Flash) | 32 KB |
| 工作温度 | -40C to +85C |
| 封装 | 64-LFQFP (10x10 mm) |
| 安装类型 | Surface Mount |
| On-chip Segment LCD Driver | Yes (4 common x 36 segment typical) |
| LCD Voltage Generation Methods | External resistor divider, capacitive split, internal voltage boost |
| On-chip Debug | Yes |
| A/D Converter | 10-bit (per L13 family datasheet) |
| RoHS 状态 | Compliant |
| Lead Free | Yes |
| Orderable Part Number Suffix | #10 (production) / #50 (other) |
R5F10WLCAFB 引脚配置
| 引脚 1 | P00/SEG0 — Port 0 bit 0 / Segment output 0 |
| 引脚 2 | P01/SEG1 — Port 0 bit 1 / Segment output 1 |
| 引脚 3 | P02/SEG2 — Port 0 bit 2 / Segment output 2 |
| 引脚 4 | P03/SEG3 — Port 0 bit 3 / Segment output 3 |
| 引脚 5 | VSS — Ground |
| 引脚 6 | P04/SEG4 — Port 0 bit 4 / Segment output 4 |
| 引脚 7 | P05/SEG5 — Port 0 bit 5 / Segment output 5 |
| 引脚 8 | P06/SEG6 — Port 0 bit 6 / Segment output 6 |
| 引脚 9 | P07/SEG7 — Port 0 bit 7 / Segment output 7 |
| 引脚 10 | P10/SEG8 — Port 1 bit 0 / Segment output 8 |
| 引脚 11 | P11/SEG9 — Port 1 bit 1 / Segment output 9 |
| 引脚 12 | P12/SEG10 — Port 1 bit 2 / Segment output 10 |
| 引脚 13 | P13/SEG11 — Port 1 bit 3 / Segment output 11 |
| 引脚 14 | P14/SEG12 — Port 1 bit 4 / Segment output 12 |
| 引脚 15 | P15/SEG13 — Port 1 bit 5 / Segment output 13 |
| 引脚 16 | P16/SEG14 — Port 1 bit 6 / Segment output 14 |
| 引脚 17 | P17/SEG15 — Port 1 bit 7 / Segment output 15 |
| 引脚 18 | P30/SEG16 — Port 3 bit 0 / Segment output 16 |
| 引脚 19 | P31/SEG17 — Port 3 bit 1 / Segment output 17 |
| 引脚 20 | P32/SEG18 — Port 3 bit 2 / Segment output 18 |
| 引脚 21 | P33 — Port 3 bit 3 |
| 引脚 22 | P34 — Port 3 bit 4 |
| 引脚 23 | P35 — Port 3 bit 5 |
| 引脚 24 | P36 — Port 3 bit 6 |
| 引脚 25 | P37 — Port 3 bit 7 |
| 引脚 26 | P40 — Port 4 bit 0 |
| 引脚 27 | P41 — Port 4 bit 1 |
| 引脚 28 | P42 — Port 4 bit 2 |
| 引脚 29 | P43 — Port 4 bit 3 |
| 引脚 30 | P44 — Port 4 bit 4 |
| 引脚 31 | P45 — Port 4 bit 5 |
| 引脚 32 | P46 — Port 4 bit 6 |
| 引脚 33 | P47 — Port 4 bit 7 |
| 引脚 34 | VSS — Ground |
| 引脚 35 | P50 — Port 5 bit 0 |
| 引脚 36 | P51 — Port 5 bit 1 |
| 引脚 37 | P52 — Port 5 bit 2 |
| 引脚 38 | P53 — Port 5 bit 3 |
| 引脚 39 | P54 — Port 5 bit 4 |
| 引脚 40 | P55 — Port 5 bit 5 |
| 引脚 41 | P56 — Port 5 bit 6 |
| 引脚 42 | P57 — Port 5 bit 7 |
| 引脚 43 | VDD — Power supply |
| 引脚 44 | P60 — Port 6 bit 0 |
| 引脚 45 | P61 — Port 6 bit 1 |
| 引脚 46 | P62 — Port 6 bit 2 |
| 引脚 47 | P63 — Port 6 bit 3 |
| 引脚 48 | P64 — Port 6 bit 4 |
| 引脚 49 | P65 — Port 6 bit 5 |
| 引脚 50 | P66 — Port 6 bit 6 |
| 引脚 51 | P67 — Port 6 bit 7 |
| 引脚 52 | P70/COM0 — Port 7 bit 0 / LCD Common 0 |
| 引脚 53 | P71/COM1 — Port 7 bit 1 / LCD Common 1 |
| 引脚 54 | P72/COM2 — Port 7 bit 2 / LCD Common 2 |
| 引脚 55 | P73/COM3 — Port 7 bit 3 / LCD Common 3 |
| 引脚 56 | P74 — Port 7 bit 4 |
| 引脚 57 | P75 — Port 7 bit 5 |
| 引脚 58 | P76 — Port 7 bit 6 |
| 引脚 59 | P77 — Port 7 bit 7 |
| 引脚 60 | RESET — Reset input (active low) |
| 引脚 61 | X1 — Crystal oscillator input |
| 引脚 62 | X2 — Crystal oscillator output |
| 引脚 63 | VDD — Power supply |
| 引脚 64 | VSS — Ground |
典型应用
R5F10WLCAFB 适用于 6 应用s: Home Appliance LCD Display Controllers, Battery-Powered Measurement Instruments, Industrial Sensor Modules with LCD Indication, Smart Metering and Utility Displays, Portable Medical Monitoring Devices, HVAC Thermostats and Building Controls.
Home Appliance LCD Display Controllers
The R5F10WLCAFB is purpose-built for home appliances with segment LCD readouts such as washing machines, microwave ovens, dishwashers, and refrigerators. Its integrated segment LCD driver supporting 4-common x 36-segment configurations directly drives TN/STN panels without external LCD controller ICs, eliminating BOM cost and PCB area. The 32KB flash accommodates typical HMI state machines and menu logic, while the RL78 core's ultra-low STOP current (sub-microamp) keeps standby power negligible in always-on appliances. Designers can select from three LCD bias generation methods - external resistor divider for cost-sensitive designs, capacitive split for lower current, or internal voltage boost to fully eliminate external passives. The 24MHz clock enables responsive UI feedback for keypad scanning and rotary encoder input.
推荐
Battery-Powered Measurement Instruments
The R5F10WLCAFB excels in battery-powered measurement tools such as digital multimeters, thermometers, weighing scales, and portable gas detectors. Its RL78 core delivers low active current while the integrated segment LCD driver displays measurement readouts directly on the front panel. The SNOOZE mode allows the ADC to sample sensors periodically while the CPU remains in STOP, achieving years of battery life on a single set of alkaline cells. The wide operating voltage range supports 2xAA, 3xAA, and lithium primary chemistries without level shifters. With 32KB flash, designers can implement calibration routines, custom units, and averaging algorithms alongside the application logic. The 64-pin LFQFP also leaves sufficient GPIO for sensor interfacing and user input.
推荐
Industrial Sensor Modules with LCD Indication
Industrial sensor modules including pressure transducers, flow meters, and process indicators benefit from the R5F10WLCAFB's combination of segment LCD driver, 10-bit ADC, and industrial temperature range (-40C to +85C). The MCU reads analog sensors, performs linearization, and displays the result on a local segment LCD for operator visibility. The 24MHz RL78 core supports real-time PID loops or filter algorithms within the 32KB flash budget. HALT and STOP modes minimize quiescent current in loop-powered 4-20mA transmitters. The robust LFQFP-64 package suits harsh industrial environments with proper PCB conformal coating. UART/SPI/I2C interfaces allow connection to higher-level controllers or HMIs.
推荐
Smart Metering and Utility Displays
Electricity, water, and gas meters with local consumption displays use the R5F10WLCAFB to integrate tamper detection, metrology calculation, and LCD readout in a single chip. The built-in segment LCD driver shows consumption digits, status icons, and battery indicators without an external display ASIC. RL78 STOP current below 1 microamp enables 10+ year battery life mandated by utility metering standards. The 32KB flash accommodates metrology firmware plus communication protocol stacks (IEC 62056-21, M-Bus). The 24MHz core executes the energy calculation algorithm within the metrology sample period, and the 64-LFQFP provides enough pins for pulse inputs, optical interfaces, and tamper switches. Designers achieve a low-BOM, long-life metering solution.
推荐
Portable Medical Monitoring Devices
Patient monitoring devices such as blood pressure monitors, pulse oximeters, and digital thermometers leverage the R5F10WLCAFB's low-power RL78 core and integrated LCD driver. The segment LCD displays systolic/diastolic readings, SpO2 percentage, or temperature values directly. The 10-bit ADC reads sensor analog signals while the 24MHz core executes DSP-style filtering algorithms. Ultra-low STOP current extends battery life for home-use medical devices. The 32KB flash stores measurement history and calibration data. Industrial -40C to +85C operation supports medical cold-chain and tropical climate use cases. The 64-LFQFP provides pins for keypad input, buzzer output, and wireless module interfacing.
推荐
HVAC Thermostats and Building Controls
Wall-mounted thermostats and building automation panels use the R5F10WLCAFB to drive segment LCDs showing temperature setpoints, mode icons, and fan status. The MCU reads NTC thermistors via the 10-bit ADC, runs PID control for relay/triac outputs, and updates the LCD in real time. RL78's low STOP current suits battery-backed thermostats, while the wide voltage range supports 24VAC HVAC bus power with rectification. The 32KB flash accommodates scheduling, adaptive learning, and multi-zone coordination logic. The 64-LFQFP pins are sufficient for keypad, rotary encoder, communication module (Wi-Fi/Zigbee), and triac driver interfacing. The integrated LCD driver removes the need for an external display IC in cost-sensitive consumer HVAC products.
推荐
推荐产品汇总
工程参考数据： R5F10WLCAFB ——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 | R5F10WLGAFA | R5F10WLEAFB | R5F10WLGAFB | R5F10WLEDFA | R5F10WLCAFB#50 |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | 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 | 64-LFQFP (10x10 mm) - same | 64-LFQFP (10x10 mm) - same |
| Core | RL78 16-bit | RL78 16-bit | RL78 16-bit | RL78 16-bit | RL78 16-bit | RL78 16-bit |
| Flash Memory | 32 KB | 64 KB (+100%) | 16 KB (-50%) | 64 KB (+100%) | 16 KB (-50%) | 32 KB (same) |
| Maximum Clock | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 24 MHz |
| Segment LCD Driver | Yes (4x36 typical) | Yes (4x36 typical) | Yes (4x36 typical) | Yes (4x36 typical) | Yes (4x36 typical) | Yes (4x36 typical) |
| LCD Bias Methods | 3 (Resistor/Cap/Boost) | 3 (Resistor/Cap/Boost) | 3 (Resistor/Cap/Boost) | 3 (Resistor/Cap/Boost) | 3 (Resistor/Cap/Boost) | 3 (Resistor/Cap/Boost) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
关键差异点
- Integrated segment LCD driver eliminates external controller IC （对比 Generic 16-bit MCU without LCD driver (e.g., PIC16F series))
- Three LCD bias generation methods in a single part （对比 R5F10WLCAFB#50 (same part, different suffix))
- Same 64-LFQFP footprint across the L13 flash-density range （对比 R5F10WLEAFB (16KB variant))
设计说明
For battery-powered designs, use SNOOZE mode to allow the ADC or UART to wake the CPU from STOP state on specific events. According to the RL78/L13 datasheet, STOP current is below 1 microamp with the LCD driver disabled, and slightly higher with LCD enabled. Estimated: at 3V supply with LCD off and 32.768kHz subclock running, average current for periodic sensor sampling every 100ms is approximately 5-10 microamps - enabling years of battery life on 2xAA cells.
Decouple VDD with a 0.1uF ceramic capacitor placed within 5mm of the VDD pin and a bulk 10uF electrolytic/ceramic capacitor nearby. For segment LCD designs using internal voltage boost, place C1/C2 capacitors (per datasheet LCD section) close to the CAPL/CAPH pins to minimize ripple on VLCD. Avoid routing digital signal traces under the LCD bias network to prevent noise injection into display contrast.
Do not use the on-chip debug function in mass-production units - the guaranteed flash rewrite count may be exceeded when OCD is enabled, compromising long-term reliability. For production programming, use the dedicated flash programmer interface. Also note that the X1/X2 crystal pins share functions with general I/O on some L13 variants; ensure the oscillator configuration register matches your hardware (crystal vs external clock input) before code execution to avoid undefined startup behavior.
合规信息
RoHS and lead-free compliance confirmed via Renesas product page. AEC-Q100 not applicable - L13 is industrial/consumer grade. Use automotive-grade RL78/F1x or RL78/F15 for vehicle applications.
