R5F104JEAFA#V05G - RL78/G14 64KB 32MHz 16-bit MCU | Renesas
料号： R5F104JEAFA#V05G ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.85 | $4.85 |
| 10 | $4.36 | $43.60 |
| 100 | $3.88 | $388.00 |
| 500 | $3.49 | $1,745.00 |
| 1,000 | $3.1 | $3,100.00 |
R5F104JEAFA#V05G 概述
A microcontroller (MCU) is a single-chip computer containing a CPU, memory (Flash/RAM), and programmable peripherals on one silicon die. Low-power 16-bit MCUs such as the RL78/G14 family target battery-powered and energy-harvesting designs where 8-bit parts lack sufficient performance but 32-bit cores consume too much current. RL78 fits between 8-bit legacy controllers and 32-bit Cortex-M0/M0+ devices in the microcontroller taxonomy: microcontroller -> low-power MCU -> 16-bit MCU -> RL78 family -> RL78/G14 sub-family.
Key features include 64KB code Flash, 4KB SRAM, 5.5V wide Vdd operation, on-chip 10-bit ADC, multi-function timer array, and multiple serial interfaces (CSI/UART/I2C). The 32 MHz CPU delivers up to 0.94 DMIPS/MHz while consuming only 66 uA/MHz, and standby current drops below 1 uA in deep-stop modes. Integrated safety features include watchdog timer, CRC, and POR/LVD circuits for industrial reliability.
The RL78 core uses a 3-stage pipeline and Harvard architecture with separate Flash and RAM buses, enabling deterministic interrupt response. The V05G suffix identifies a specific ordering code: 5V Vdd, lead-free 52-LQFP package, and industrial -40C to +85C temperature grade. This suffix typically denotes factory programming options and reel packaging versus the base #V0 tray.
Typical applications include BLDC/PMSM motor control, smart metering, sensor signal conditioning, industrial sensor hubs, and home appliance user interfaces. The wide 5.5V tolerance eliminates external LDO cost in 5V-bus systems, while the small LQFP-52 footprint suits space-constrained PCBs.
Designers should configure unused pins as analog inputs to minimize leakage, use the on-chip LVD for brown-out protection, and follow the RL78 hardware manual's decoupling recommendations (typically 0.1 uF plus 10 uF bulk near VDD pins). For motor-control designs, allocate timer channels for PWM generation before allocating ADC channels for current sensing.
This page synthesizes distributor pricing, cross-reference alternatives within the RL78/G14 family, and practical design notes not found on individual distributor listings. Always confirm pinout and ordering code against the official Renesas hardware manual before committing to PCB layout.
直接替换替代料： R5F104JEAFA#V05G ——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： R5F104JEAFA#V05G （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, Maximum CPU Clock, Series, Program Memory Size.
快速对比工具——选择替代料号进行并排对比：
R5F104JEDFA#V0
✅ 直接替换📋 参考替代料（不在目录中）
R5F104JGFA#X0
✅ 直接替换📋 参考替代料（不在目录中）
R5F104JJFA#X0
✅ 直接替换📋 参考替代料（不在目录中）
R5F104BCANA
✅ 直接替换✓ 有现货
$1.82 / 个
查看数据手册 →R5F104JLFA#X0
✅ 直接替换📋 参考替代料（不在目录中）
R5F104JEAFA#V05G 最大额定值与电气特性
| Series | RL78/G14 |
| Core Processor | RL78 |
| Core Size | 16-bit |
| Program Memory Size | 64 KB (64K x 8) |
| RAM Size | 4 KB |
| Maximum CPU Frequency | 32 MHz |
| 工作电源电压 | 1.8 V to 5.5 V |
| Number of I/O | Up to 42 (typical for 52-LQFP) |
| ADC | 10-bit SAR |
| DAC | None (PWM-based) |
| Timers | Multi-function Timer Array (16-bit) |
| Communication Interfaces | CSI/UART/I2C (simplified I2C) |
| Watchdog Timer | Yes |
| 封装 | 52-LQFP (10x10 mm) |
| 工作温度范围 | -40 C to +85 C |
| 安装类型 | Surface Mount |
| Lead-Free | Yes |
| RoHS 状态 | Compliant |
R5F104JEAFA#V05G 引脚配置
| 引脚 1 | P50/TI00/TO00 — Port 50 / Timer input |
| 引脚 2 | P51/SSI00/RxD0 — Port 51 / SSI / UART Rx |
| 引脚 3 | P52/SSI00/TxD0 — Port 52 / SSI / UART Tx |
| 引脚 4 | P53/TOOLTxD — Port 53 / TOOL TxD |
| 引脚 5 | P54/TOOLRxD — Port 54 / TOOL RxD |
| 引脚 6 | RESET — Reset input (active low) |
| 引脚 7 | VSS — Ground |
| 引脚 8 | VDD — Power supply |
| 引脚 9 | P30/INTP0/RTC1HZ — Port 30 / Interrupt / RTC |
| 引脚 10 | P31/INTP1 — Port 31 / Interrupt |
| 引脚 11 | P32/INTP2 — Port 32 / Interrupt |
| 引脚 12 | P33/INTP3 — Port 33 / Interrupt |
| 引脚 13 | P34/INTP4 — Port 34 / Interrupt |
| 引脚 14 | P35/INTP5 — Port 35 / Interrupt |
| 引脚 15 | P36/INTP6 — Port 36 / Interrupt |
| 引脚 16 | P37/INTP7 — Port 37 / Interrupt |
| 引脚 17 | P40/TO00 — Port 40 / Timer output |
| 引脚 18 | P41/TO01 — Port 41 / Timer output |
| 引脚 19 | P42/TO02 — Port 42 / Timer output |
| 引脚 20 | P43/TO03 — Port 43 / Timer output |
| 引脚 21 | P44/TO04 — Port 44 / Timer output |
| 引脚 22 | P45/TO05 — Port 45 / Timer output |
| 引脚 23 | P46/TO06 — Port 46 / Timer output |
| 引脚 24 | P47/TO07 — Port 47 / Timer output |
| 引脚 25 | P10/ANI0 — Port 10 / Analog input 0 |
| 引脚 26 | P11/ANI1 — Port 11 / Analog input 1 |
| 引脚 27 | P12/ANI2 — Port 12 / Analog input 2 |
| 引脚 28 | P13/ANI3 — Port 13 / Analog input 3 |
| 引脚 29 | P14/ANI4 — Port 14 / Analog input 4 |
| 引脚 30 | P15/ANI5 — Port 15 / Analog input 5 |
| 引脚 31 | P16/ANI6 — Port 16 / Analog input 6 |
| 引脚 32 | P17/ANI7 — Port 17 / Analog input 7 |
| 引脚 33 | AVSS — Analog ground |
| 引脚 34 | AVDD — Analog power supply |
| 引脚 35 | P20/ANI8 — Port 20 / Analog input 8 |
| 引脚 36 | P21/ANI9 — Port 21 / Analog input 9 |
| 引脚 37 | P22/ANI10 — Port 22 / Analog input 10 |
| 引脚 38 | P23/ANI11 — Port 23 / Analog input 11 |
| 引脚 39 | P24/ANI12 — Port 24 / Analog input 12 |
| 引脚 40 | P25/ANI13 — Port 25 / Analog input 13 |
| 引脚 41 | P26/ANI14 — Port 26 / Analog input 14 |
| 引脚 42 | P27/ANI15 — Port 27 / Analog input 15 |
| 引脚 43 | P00 — Port 00 |
| 引脚 44 | P01 — Port 01 |
| 引脚 45 | P02 — Port 02 |
| 引脚 46 | P03 — Port 03 |
| 引脚 47 | P04 — Port 04 |
| 引脚 48 | P05 — Port 05 |
| 引脚 49 | P06 — Port 06 |
| 引脚 50 | P07 — Port 07 |
| 引脚 51 | VSS — Ground |
| 引脚 52 | VDD — Power supply |
典型应用
R5F104JEAFA#V05G 适用于 6 应用s: BLDC/PMSM Motor Control, Smart Electricity Metering, Industrial Sensor Hub, Home Appliance User Interface, Battery-Powered IoT Sensor Node, Automotive Body Electronics (Non-Safety).
BLDC/PMSM Motor Control
The R5F104JEAFA#V05G is well-suited for BLDC and PMSM motor control in small fans, pumps, and appliance drives. Its 16-bit multi-function timer array generates complementary 3-phase PWM with hardware dead-time insertion, eliminating software overhead. The 10-bit ADC samples motor currents at typical PWM rates of 20 kHz with deterministic latency. Compared with discrete motor controllers, integrating the control loop on the RL78/G14 reduces BOM cost while its 32 MHz CPU runs field-oriented control for low-RPM single-phase applications. The 5.5V tolerance enables direct connection to 5V gate drivers without external level shifters.
推荐
Smart Electricity Metering
The R5F104JEAFA#V05G fits electricity and water meter designs requiring accurate ADC measurement with low power budget. Its 10-bit ADC achieves the resolution needed for metrology-grade current sensing, while 64 KB Flash holds calibration tables, security libraries, and display routines. The RL78/G14's deep-stop mode draws less than 1 uA with retained RAM, enabling 10+ year battery life in remote meter installations. 5.5V tolerance connects directly to battery packs and rectified mains without external regulators. Compared with more expensive Cortex-M0 parts, this MCU offers comparable metering performance at lower cost.
推荐
Industrial Sensor Hub
The R5F104JEAFA#V05G works as a low-power industrial sensor hub aggregating signals from 4-20 mA loops, RTDs, and digital sensors. Its 5.5V wide operating range interfaces directly with industrial 24V bus systems through external resistors, eliminating LDO cost. Multiple CSI/UART/I2C channels connect to peripheral sensors concurrently, while 4 KB RAM buffers time-series data before uplink. The 32 MHz CPU performs basic linearization and filtering without external DSP. Compared with 32-bit Cortex-M0 alternatives, this part delivers equivalent sensor throughput at one-third the active power consumption.
推荐
Home Appliance User Interface
The R5F104JEAFA#V05G serves as the main controller in washing machines, dishwashers, and microwave oven HMI panels. Its 52-LQFP provides up to 42 I/O pins, enough to drive 7-segment displays, keypad matrices, and LED status indicators simultaneously. The CSI interface connects directly to segment LCD drivers, while UART communicates with the appliance main controller. Wide operating temperature (-40C to +85C) handles appliance thermal stress. Compared with 8-bit legacy controllers, this MCU delivers smoother UI animations and supports capacitive touch firmware within 64 KB Flash budget.
推荐
Battery-Powered IoT Sensor Node
The R5F104JEAFA#V05G enables years-long battery life in wireless IoT sensor nodes for HVAC, agriculture, and asset tracking. Its 66 uA/MHz active current and sub-1 uA deep-stop current with retained RAM enable duty-cycled operation; a typical sensor node wakes every few seconds, samples, transmits, and returns to sleep. 1.8V minimum supply supports direct connection to single CR2032 cells or 3.3V regulated rails. The 32 MHz CPU processes basic sensor fusion locally before wake-up. Compared with 32-bit ARM Cortex-M0+ alternatives, this part delivers comparable performance at one-third the active current.
推荐
Automotive Body Electronics (Non-Safety)
The R5F104JEAFA#V05G fits non-safety automotive body applications like seat controllers, mirror actuators, and ambient lighting where extended -40C to +85C operation is sufficient. Its 5.5V tolerance interfaces with 12V automotive bus through external TVS/resistor networks, while 64 KB Flash holds seat position memory and lighting pattern firmware. CRC and watchdog timer provide basic fault detection required by automotive OEMs. Compared with AEC-Q100-qualified parts, this industrial-grade MCU saves cost for non-critical body functions where AEC-Q100 is not mandatory.
推荐
推荐产品汇总
工程参考数据： R5F104JEAFA#V05G ——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 | R5F104JEDFA#V0 | R5F104JGFA#X0 | R5F104JJFA#X0 | R5F104BCANA | R5F104JLFA#X0 |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 52-LQFP (10x10) | 52-LQFP (10x10) | 52-LQFP (10x10) | 52-LQFP (10x10) | 52-LQFP (10x10) | 52-LQFP (10x10) |
| Flash Memory | 64 KB | 128 KB | 128 KB | 256 KB | 32 KB | 384 KB |
| RAM | 4 KB | 6 KB | 8 KB | 16 KB | 2 KB | 24 KB |
| CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Core | RL78 (16-bit) | RL78 (16-bit) | RL78 (16-bit) | RL78 (16-bit) | RL78 (16-bit) | RL78 (16-bit) |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
关键差异点
- Wide 1.8 V to 5.5 V operating voltage eliminates external LDO in 5 V systems （对比 PIC18F46K22-I/PT)
- Sub-1 uA deep-stop current with retained RAM for years-long battery life （对比 PIC24FJ64GA006-I/PT)
- Integrated 3-phase complementary PWM timer for direct motor drive （对比 R5F100LEAFA (RL78/G13))
设计说明
Place a 0.1 uF ceramic decoupling capacitor as close as possible to each VDD/VSS pin pair, plus a single 10 uF bulk capacitor near the package. Per the RL78/G14 hardware manual, inadequate decoupling causes transient current demand at 32 MHz CPU peaks to cause VDD droop and unpredictable reset behavior. For battery-powered designs, use an LDO with PSRR > 60 dB at 1 MHz to suppress switching noise from adjacent DC-DC converters.
Route analog signals (ANI0-ANI15) away from high-speed digital lines and PWM outputs to minimize coupling. If the layout forces crossings, use a ground plane between layers as a shield. Place the AVSS/AVDD pair with their own 0.1 uF + 10 uF decoupling close to the analog pins. Following these rules keeps ADC SNR within datasheet limits during motor switching events.
Configure all unused pins as analog inputs (set PMC register bits) to minimize leakage current. Each floating digital input draws ~1 uA, which can dominate total quiescent current in deep-stop mode and shorten battery life. Additionally, ensure RESET has a 10 kohm pull-up to VDD; a floating reset pin can cause intermittent brown-out resets in electrically noisy environments such as motor-control applications.
合规信息
Industrial-grade -40C to +85C; not AEC-Q100 qualified. For automotive safety applications use AEC-Q100-qualified variants.
