R5F104BCANA#U0 - RL78/G14 32KB 32MHz 16-bit MCU | Renesas
料号： R5F104BCANA#U0 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.6524 | $3.65 |
| 10 | $3.28 | $32.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.41 | $1,205.00 |
| 1,000 | $2.18 | $2,180.00 |
R5F104BCANA#U0 概述
An RL78 microcontroller is a 16-bit CISC architecture developed by Renesas as a successor to the 16-bit 78K and R8C families. The RL78 core combines high code density, fast interrupt response, and an ultra-low-power design philosophy: a hierarchical taxonomy places it as RL78 -> 16-bit MCU -> microcontroller -> embedded processor -> semiconductor. Compared with 32-bit Cortex-M parts, RL78 typically delivers 30-50% lower active current per MHz and standby currents in the microamp range, making it ideal for battery-powered and energy-harvesting designs.
Key differentiating features of the R5F104BCANA#U0 include the RL78 CPU running up to 32 MHz (with 1.58 DMIPS/MHz throughput), on-chip debugging via single-wire TOOL0, multi-function timer array (TAU) supporting PWM, capture, and encoder input for motor control, a 10-bit successive-approximation ADC, multiple serial interfaces (CSI/UART/Simple I2C), and a wide 1.6V to 5.5V operating voltage range. The device supports the on-chip debug and serial programming modes accessed through dedicated TOOL0 and RESET pins, enabling in-circuit firmware updates without external programmers.
The R5F104BCANA#U0 is engineered around the RL78's three power-management modes (RUN, HALT, STOP) and an Snooze mode that lets peripherals run while the CPU sleeps, drawing as little as 0.5 uA in STOP with RTC retention. This architecture makes it well-suited for mains-powered appliances running from a small DC-DC supply and battery-operated portable instruments that must meet IEC 62368-1 standby budgets.
Typical applications include small BLDC/PMSM motor control (fans, pumps, appliance drives), energy metering (single-phase power/electricity meters, water/gas meters), industrial sensor nodes, IoT edge devices, and user-interface or HMI front panels. The HWQFN-32 footprint also allows compact PCB layouts where board space is at a premium.
When designing with this device, ensure the exposed pad (EP) is soldered to a sufficient copper pour on the top or bottom layer to meet the thermal resistance (theta_JA) of the package. Use Renesas' e2 studio IDE and the RL78 GCC or CC-RL toolchain for firmware development; the on-chip debug interface works with the E2 or E2-Lite emulator for real-time trace and flash programming.
This page synthesizes distributor pricing, drop-in HWQFN-32 alternatives from Renesas' R5F104 family, and practical design notes not consolidated on the manufacturer product page.
直接替换替代料： R5F104BCANA#U0 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
R5F104BAGNA#U0
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
R5F104BEGNA#U0
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
R5F104BCANA#W0
✅ 直接替换📋 参考替代料（不在目录中）
R5F104BCGNA#W0
✅ 直接替换📋 参考替代料（不在目录中）
R5F104BCANA#U0 最大额定值与电气特性
| Core Architecture | RL78 (16-bit CISC) |
| Family | RL78/G14 |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| 封装 | 32-HWQFN (5x5 mm) with Exposed Pad |
| 引脚数量 | 32 |
| 电源电压 | 1.6 V to 5.5 V |
| 工作温度 | -40 C to +85 C |
| 安装类型 | Surface Mount |
| ADC | 10-bit SAR ADC |
| Timers | Multi-function Timer Array (TAU) with PWM/Capture/Encoder |
| Serial Interfaces | CSI / UART / Simple I2C |
| On-chip Debug | Yes (single-wire TOOL0) |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
R5F104BCANA#U0 引脚配置
| 引脚 1 | P10/ANI17/KR0 — General I/O / ADC input / key interrupt |
| 引脚 2 | P11/ANI16/KR1 — General I/O / ADC input / key interrupt |
| 引脚 3 | P12/ANI15 — General I/O / ADC input |
| 引脚 4 | P13/ANI14 — General I/O / ADC input |
| 引脚 5 | P14/ANI13 — General I/O / ADC input |
| 引脚 6 | P15/ANI12 — General I/O / ADC input |
| 引脚 7 | P16/ANI11/TI01 — General I/O / ADC input / timer input |
| 引脚 8 | P17/ANI10/TI02 — General I/O / ADC input / timer input |
| 引脚 9 | VDD — Power supply |
| 引脚 10 | VSS — Ground |
| 引脚 11 | P20/ANI9/AVREFM — General I/O / ADC / ADC negative reference |
| 引脚 12 | P21/ANI8/AVREFP — General I/O / ADC / ADC positive reference |
| 引脚 13 | P22/ANI7 — General I/O / ADC input |
| 引脚 14 | P23/ANI6 — General I/O / ADC input |
| 引脚 15 | P24/ANI5 — General I/O / ADC input |
| 引脚 16 | P25/ANI4 — General I/O / ADC input |
| 引脚 17 | P26/ANI3 — General I/O / ADC input |
| 引脚 18 | P27/ANI2 — General I/O / ADC input |
| 引脚 19 | P30/TOOL0 — General I/O / on-chip debug data pin |
| 引脚 20 | P31/RESET — General I/O / reset input |
| 引脚 21 | P32/SO00/TxD0 — General I/O / serial output / UART TX |
| 引脚 22 | P33/SI00/RxD0 — General I/O / serial input / UART RX |
| 引脚 23 | P34/SCK00 — General I/O / serial clock |
| 引脚 24 | P40/TO00/INTP0 — General I/O / timer output / external interrupt |
| 引脚 25 | P41/TO01/INTP1 — General I/O / timer output / external interrupt |
| 引脚 26 | P42/TO02/INTP2 — General I/O / timer output / external interrupt |
| 引脚 27 | P43/TO03/INTP3 — General I/O / timer output / external interrupt |
| 引脚 28 | P44/TO04/INTP4 — General I/O / timer output / external interrupt |
| 引脚 29 | P45/TO05/INTP5 — General I/O / timer output / external interrupt |
| 引脚 30 | P46/TO06/INTP6 — General I/O / timer output / external interrupt |
| 引脚 31 | P47/TO07/INTP7 — General I/O / timer output / external interrupt |
| 引脚 32 | EP — Exposed Pad - must be soldered to thermal pad / ground |
典型应用
R5F104BCANA#U0 适用于 6 应用s: BLDC/PMSM Motor Control - Fans and Pumps, Single-Phase Energy / Electricity Metering, Industrial Sensor Nodes and PLC I/O, Battery-Powered IoT Edge Devices, User Interface / HMI Front Panels, Appliance Sub-Systems - Door Locks and Dishwashers.
BLDC/PMSM Motor Control - Fans and Pumps
The R5F104BCANA#U0 drives small BLDC and PMSM motors in fans, pumps, and HVAC blowers using its multi-function timer array (TAU) for 3-phase PWM generation and the 10-bit ADC for back-EMF sensing. Running at 32 MHz the RL78 core closes the commutation loop well under 100 us, supporting up to 60 krpm sensorless operation. Source: Renesas RL78/G14 motor-control application notes.
推荐
Single-Phase Energy / Electricity Metering
With 32 KB flash, integrated ADC, and the RL78's ultra-low-power RUN/HALT/STOP modes, this MCU serves as the metering engine in single-phase electricity, water, and gas meters. Its 1.6V-5.5V supply range lets it run directly from a shunt-derived DC rail. Source: Renesas RL78 metering reference designs and IEC 62053-21 / IEC 62053-22 referenced architecture.
推荐
Industrial Sensor Nodes and PLC I/O
The R5F104BCANA#U0 conditions analog/digital sensor inputs in industrial nodes: 4-20 mA loops, digital switches, and fieldbus slaves. Its CSI/UART/Simple I2C serial interfaces connect to sensors, display modules, and isolated transceivers, while the 32-HWQFN footprint suits compact DIN-rail PCBs. Source: Renesas RL78 industrial automation reference designs.
推荐
Battery-Powered IoT Edge Devices
Drawing microamps in STOP and integrated peripherals that wake the CPU autonomously in Snooze mode, the R5F104BCANA#U0 hosts coin-cell IoT nodes that report sensor data over UART-LoRa or BLE. Wide 1.6V-5.5V support lets designers eliminate boost converters on 3V and 5V battery chemistries. Source: Renesas RL78 low-power application notes.
推荐
User Interface / HMI Front Panels
The RL78/G14 drives segmented LCDs, key matrices, and rotary encoders in white-goods control panels and small appliances. Its CSI/UART interfaces link to display ICs and indicator LEDs, while the 16-bit timer PWM dims LED backlights. Source: Renesas RL78 segment-LCD application notes.
推荐
Appliance Sub-Systems - Door Locks and Dishwashers
In dishwasher control boards, refrigerator door locks, and similar sub-systems, the R5F104BCANA#U0 supervises sensors and actuators with deterministic interrupt response. The HWQFN-32 footprint mounts on the back of single-side panels, and the 5.5V maximum rating tolerates motor back-EMF transients. Source: Renesas RL78 white-goods reference designs.
推荐
推荐产品汇总
工程参考数据： R5F104BCANA#U0 ——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 | R5F104BAGNA#U0 | R5F104BEGNA#U0 | R5F104BCANA#W0 | R5F104BCGNA#W0 |
|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 32-HWQFN (5x5) | 32-HWQFN (5x5) - same | 32-HWQFN (5x5) - same | 32-HWQFN (5x5) - same | 48-HWQFN - higher pin count |
| Core | RL78 16-bit | RL78 16-bit | RL78 16-bit | RL78 16-bit | RL78 16-bit |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 32 KB | 16 KB | 64 KB | 32 KB | 32 KB |
| Supply Voltage | 1.6V to 5.5V | 1.6V to 5.5V | 1.6V to 5.5V | 1.6V to 5.5V | 1.6V to 5.5V |
| Pin Count | 32 | 32 | 32 | 32 | 48 |
关键差异点
- Industry-leading low active current per MHz for the 16-bit class （对比 Generic 32-bit Cortex-M0 MCU at equivalent MHz)
- Single-wire TOOL0 on-chip debug （对比 Older 78K0 parts requiring 4-wire debug)
- Wide 1.6V to 5.5V supply in HWQFN-32 （对比 Typical 32-bit MCU requiring 3.3V LDO)
设计说明
Estimated: The HWQFN-32 exposed pad must be soldered to a continuous copper pad on the top or bottom layer to keep theta_JA within datasheet limits. Recommended pad is at least 3.5x3.5 mm with thermal vias (0.3 mm drill, 0.5 mm pitch) tied to the inner-plane ground. Without the EP soldered the device will fail at modest power dissipation.
Place decoupling capacitors (0.1 uF X7R plus 10 uF bulk) within 3 mm of the VDD and VSS pins. The wide 1.6V-5.5V supply range means a single LDO downstream of a 24V industrial rail is acceptable. For battery applications, add a reverse-polarity Schottky diode on VDD to protect against swapped battery insertion.
The TOOL0 pin (P30) is a single-wire debug interface - never tie it directly to ground or supply, and avoid placing large capacitors directly on it. A weak pull-up (10-100 kohm) prevents spurious entry into debug mode at startup. Holding TOOL0 low during reset enters serial programming mode.
Keep analog AVREFP/AVREFM traces short and guarded by a ground pour to preserve ADC accuracy. Recommended: route digital signals (serial, debug) on opposite sides of the package from analog inputs. Source: Renesas RL78/G14 hardware manual layout recommendations.
合规信息
RoHS and lead-free confirmed via Renesas product page. AEC-Q100 not applicable (general-purpose industrial MCU). Reach/halogen/conflict-mineral status not explicitly published; consult Renesas environmental compliance documentation for verification.
