R5F2135CCNFP - 16-bit R8C/35C MCU, 128KB Flash, 52-LQFP | Renesas
料号： R5F2135CCNFP ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.3 | $6.30 |
| 10 | $5.85 | $58.50 |
| 100 | $5.1 | $510.00 |
| 500 | $4.45 | $2,225.00 |
| 1,000 | $3.92 | $3,920.00 |
R5F2135CCNFP 概述
An R8C MCU is a 16-bit CISC microcontroller that combines a compact, high code-density instruction set with hardware multipliers and rich on-chip peripherals, sitting in the hierarchy: microcontroller -> embedded MCU -> 16-bit MCU -> R8C family -> Renesas 16-bit CISC lineup. Compared with 8-bit MCUs, the R8C architecture delivers higher MIPS per MHz and better C-language code density, while remaining simpler and lower-cost than 32-bit ARM Cortex-M0 alternatives for cost-sensitive appliance, sensor, and motor-control designs.
Key features include 1 MB of linear address space, 6 KB of RAM, on-chip voltage detection, low-voltage detection, watchdog timer, multiple timers (8-bit and 16-bit), a 10-bit A/D converter, UART, I2C-bus, and a clock-synchronous serial interface. Built-in data Flash (4 KB) allows non-volatile parameter storage alongside the main 128 KB program Flash, eliminating an external EEPROM in many designs.
The architecture uses a Harvard-style bus with a small RISC-like CISC instruction set, supporting signed multiply, hardware MAC-style operations, and bit-level addressing for compact control code. The 20 MHz core clock combined with a single-cycle instruction execution for many op-codes yields deterministic interrupt latency suitable for consumer and industrial real-time control.
Typical applications include home appliance control (washing machines, microwave ovens, induction cookers), white-goods motor control (BLDC, fan, pump), HVAC thermostat and sensor interface boards, consumer electronics (rice cookers, water heaters), industrial sensor signal conditioning, and battery-powered smart metering front-ends. The wide 1.8 V to 5.5 V operating range allows direct connection to 4 NiMH cells or a single Li-ion cell via LDO.
When designing with this part, evaluate the roadmap note carefully: Renesas explicitly states the R8C/35C group is supported only for existing customers, while the RL78/G14 and RL78/G1F groups are recommended for new designs. Plan around long-term availability, second-source qualification, and supply risk before committing to new volume production.
This page consolidates distributor pricing, drop-in alternatives, and practical design considerations not found in the manufacturer datasheet alone, including parametric equivalent MPNs from the same R8C/35C group that share the 52-LQFP footprint.
直接替换替代料： R5F2135CCNFP ——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：
R5F2135CMNFP#50
✅ 直接替换📋 参考替代料（不在目录中）
R5F2135CCDFP#V0
✅ 直接替换📋 参考替代料（不在目录中）
R5F2135CCNFP#50
✅ 直接替换📋 参考替代料（不在目录中）
R5F2135CCNFP#V0
✅ 直接替换📋 参考替代料（不在目录中）
R5F2135CJFP#50
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
R5F2135CCNFP 最大额定值与电气特性
| CPU Core | R8C (16-bit CISC) |
| Program Memory (Flash) | 128 KB |
| Data Flash | 4 KB |
| RAM | 6 KB |
| Address Space | 1 MB linear |
| Maximum CPU Clock | 20 MHz |
| Operating Voltage (Vcc) | 1.8 V to 5.5 V |
| Flash Programming Voltage | 2.7 V to 5.5 V |
| I/O Pins | 48 |
| 封装 | 52-pin LQFP (10 x 10 mm, 0.65 mm pitch) |
| 安装类型 | Surface Mount |
| 工作温度 | -20 C to +85 C |
| A/D Converter | 10-bit |
| Serial Interfaces | UART, I2C, Clock-Synchronous Serial |
| Timers | 8-bit and 16-bit timers |
| Watchdog Timer | Yes (on-chip) |
| Voltage Detector (LVD) | Yes (on-chip) |
| ROM Type | Flash |
| RoHS 状态 | Compliant |
R5F2135CCNFP 引脚配置
| 引脚 1 | VREF — ADC reference voltage input |
| 引脚 2 | AVSS — Analog ground |
| 引脚 3 | P0_0/AN0 — Port 0 bit 0 / ADC input 0 |
| 引脚 4 | P0_1/AN1 — Port 0 bit 1 / ADC input 1 |
| 引脚 5 | P0_2/AN2 — Port 0 bit 2 / ADC input 2 |
| 引脚 6 | P0_3/AN3 — Port 0 bit 3 / ADC input 3 |
| 引脚 7 | P0_4/AN4 — Port 0 bit 4 / ADC input 4 |
| 引脚 8 | P0_5/AN5 — Port 0 bit 5 / ADC input 5 |
| 引脚 9 | P0_6/AN6 — Port 0 bit 6 / ADC input 6 |
| 引脚 10 | P0_7/AN7 — Port 0 bit 7 / ADC input 7 |
| 引脚 11 | P1_0 — Port 1 bit 0 (input only) |
| 引脚 12 | P1_1 — Port 1 bit 1 (input only) |
| 引脚 13 | P1_2/INT0 — Port 1 bit 2 / external interrupt 0 |
| 引脚 14 | P1_3/INT1 — Port 1 bit 3 / external interrupt 1 |
| 引脚 15 | P1_4/INT2 — Port 1 bit 4 / external interrupt 2 |
| 引脚 16 | P1_5/INT3 — Port 1 bit 5 / external interrupt 3 |
| 引脚 17 | P1_6/INT4 — Port 1 bit 6 / external interrupt 4 |
| 引脚 18 | P1_7/INT5 — Port 1 bit 7 / external interrupt 5 |
| 引脚 19 | P3_0 — Port 3 bit 0 |
| 引脚 20 | P3_1 — Port 3 bit 1 |
| 引脚 21 | P3_2 — Port 3 bit 2 |
| 引脚 22 | P3_3 — Port 3 bit 3 |
| 引脚 23 | P3_4 — Port 3 bit 4 |
| 引脚 24 | P3_5 — Port 3 bit 5 |
| 引脚 25 | P3_6 — Port 3 bit 6 |
| 引脚 26 | P3_7 — Port 3 bit 7 |
| 引脚 27 | P4_0 — Port 4 bit 0 |
| 引脚 28 | P4_1 — Port 4 bit 1 |
| 引脚 29 | P4_2 — Port 4 bit 2 |
| 引脚 30 | P4_3 — Port 4 bit 3 |
| 引脚 31 | P4_4 — Port 4 bit 4 |
| 引脚 32 | P4_5 — Port 4 bit 5 |
| 引脚 33 | P4_6 — Port 4 bit 6 |
| 引脚 34 | P4_7 — Port 4 bit 7 |
| 引脚 35 | P5_0 — Port 5 bit 0 |
| 引脚 36 | P5_1 — Port 5 bit 1 |
| 引脚 37 | P5_2 — Port 5 bit 2 |
| 引脚 38 | P5_3 — Port 5 bit 3 |
| 引脚 39 | P5_4 — Port 5 bit 4 |
| 引脚 40 | P5_5 — Port 5 bit 5 |
| 引脚 41 | P5_6 — Port 5 bit 6 |
| 引脚 42 | P5_7 — Port 5 bit 7 |
| 引脚 43 | XIN — Crystal oscillator input |
| 引脚 44 | XOUT — Crystal oscillator output |
| 引脚 45 | RESET — Reset input (active low) |
| 引脚 46 | MODE — Mode select (single-chip / programming) |
| 引脚 47 | VCC — Digital supply voltage |
| 引脚 48 | VSS — Digital ground |
| 引脚 49 | VCC — Digital supply voltage (second bond) |
| 引脚 50 | VSS — Digital ground (second bond) |
| 引脚 51 | P6_0 — Port 6 bit 0 |
| 引脚 52 | P6_1 — Port 6 bit 1 |
典型应用
R5F2135CCNFP 适用于 6 应用s: Home Appliance Control, White-Goods Motor Control (BLDC / Fan / Pump), HVAC Thermostat & Sensor Interface Board, Consumer Electronics Front-End (Rice Cooker / Water Heater), Industrial Sensor Signal Conditioning, Battery-Powered Smart-Metering Front-End.
Home Appliance Control
The R5F2135CCNFP's 128 KB Flash, 4 KB data Flash, and 6 KB RAM make it well suited for home appliance controllers in washing machines, microwave ovens, and induction cookers where motor timing and temperature sensing must be coordinated. Its 1.8 V to 5.5 V operating range tolerates unregulated mains-derived rails and supports direct sensor interfacing with the on-chip 10-bit ADC. The R8C core's bit-manipulation instructions and 16-bit timers deliver deterministic loop control without external coprocessors. Renesas also highlights the R8C/35C family in white-goods reference designs, though for new designs the RL78/G14 group is now recommended.
推荐
White-Goods Motor Control (BLDC / Fan / Pump)
In BLDC fan, pump, and small compressor drives, the R5F2135CCNFP drives the 16-bit timers for PWM generation and reads back EMF sensing through its 10-bit ADC. The 20 MHz CPU clock gives enough bandwidth to execute field-oriented control loops in firmware for sub-100W appliances. Wide operating voltage and 48 GPIO simplify direct connection to gate drivers and Hall sensors without external glue logic. Designers should validate that the chosen variant's Flash/RAM fits the motor state-machine plus safety firmware.
推荐
HVAC Thermostat & Sensor Interface Board
For HVAC wall thermostats and sensor-interface boards, the R5F2135CCNFP delivers sufficient compute to run multi-zone temperature averaging, PID control, and a UI driver over UART or I2C. The on-chip 4 KB data Flash stores calibration constants and user set-points across power cycles, eliminating an external EEPROM. Its -20 C to +85 C operating temperature and 1.8 V to 5.5 V supply range allow direct Li-ion or 2-AA battery operation, useful for retrofit wireless thermostat designs.
推荐
Consumer Electronics Front-End (Rice Cooker / Water Heater)
The R5F2135CCNFP is a common fit for rice cookers, water heaters, and small kitchen appliances, where the MCU controls heating-element PWM, reads temperature via the 10-bit ADC, and drives a small LED/LCD status panel. The R8C core's CISC instructions and rich bit-level addressing simplify on/off control of relays and triac drivers. The 52-LQFP package provides enough pins for sensor, key scan, and HMI without external muxes, keeping BOM cost down in cost-sensitive appliance designs.
推荐
Industrial Sensor Signal Conditioning
In industrial sensor signal-conditioning boards (pressure, flow, level), the R5F2135CCNFP digitizes analog inputs through its 10-bit ADC, applies linearization in firmware, and outputs the result over UART, I2C, or a clock-synchronous serial link to a master PLC. The 1 MB address space supports lookup tables for sensor linearization and unit conversion. The 48 GPIO and timers also support pulse counting from flow meters, making it a versatile sensor-hub MCU for industrial IoT edge nodes.
推荐
Battery-Powered Smart-Metering Front-End
For battery-powered smart-metering front-ends (gas, water, electricity sub-meter), the R5F2135CCNFP's wide 1.8 V to 5.5 V operating range enables direct connection to 2-AA NiMH cells or a single Li-ion cell via an LDO. The R8C core's low-power modes combined with on-chip voltage detection support wake-on-tamper and periodic metering cycles that extend battery life. UART/I2C peripherals let the MCU hand off data to a wireless module (LoRa, Sub-GHz, BLE) without an external bridge IC.
推荐
推荐产品汇总
工程参考数据： R5F2135CCNFP ——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 | R5F2135CMNFP#50 | R5F2135CCDFP#V0 | R5F2135CCNFP#50 | R5F2135CCNFP#V0 | R5F2135CJFP#50 |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 52-LQFP (10x10 mm) | 52-LQFP (10x10 mm) - same | 52-LQFP (10x10 mm) - same | 52-LQFP (10x10 mm) - same | 52-LQFP (10x10 mm) - same | 52-LQFP (10x10 mm) - same |
| Program Flash | 128 KB | 128 KB (parametric equivalent) | 128 KB | 128 KB | 128 KB | 128 KB |
| Data Flash | 4 KB | 4 KB | Larger data Flash (variant specific) | 4 KB | 4 KB | 4 KB |
| CPU Core | R8C (16-bit CISC) | R8C (16-bit CISC) | R8C (16-bit CISC) | R8C (16-bit CISC) | R8C (16-bit CISC) | R8C (16-bit CISC) |
| 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 |
| Maximum Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Temperature | -20 C to +85 C | -20 C to +85 C | -20 C to +85 C | -20 C to +85 C | -20 C to +85 C | -20 C to +85 C |
关键差异点
- Wide 1.8 V to 5.5 V operating voltage supports direct battery connection without external LDO （对比 R5F2135CCDFP#V0)
- High code-density 16-bit R8C CISC core with bit-manipulation instructions （对比 RL78/G14 (recommended migration target))
- On-chip 10-bit ADC plus 4 KB data Flash eliminates external EEPROM （对比 R5F2135CMNFP#50 (parametric equivalent))
设计说明
Renesas explicitly states the R8C/35C group is supported only for customers who have already adopted these products; the RL78/G14 and RL78/G1F groups are recommended for new designs. Evaluate long-term supply risk and second-source qualification before committing to new volume production. Lock in last-time-buy orders early if the project is in maintenance mode.
Decouple Vcc with a 100 nF ceramic capacitor placed within 5 mm of each Vcc pin and a bulk 10 uF tantalum or aluminum-polymer capacitor on the supply rail. AVcc/Vref must be tied to Vcc through a ferrite bead or filtered LDO if analog accuracy matters. Keep the analog ground (AVss) star-grounded back to the regulator to avoid ADC offset drift.
Route Xin/Xout traces as short as possible with symmetric ground guard rings to minimize stray capacitance and EMI. Place the load capacitor or crystal as close as the package geometry allows and avoid running noisy switching traces under the oscillator area. The exposed pad (if present on the LQFP variant) should be soldered to a thermal copper pour for heat-spreading and ground stitching.
Estimated: at Vcc=3.3V, all 48 GPIO driven at 5 MHz into 30 pF loads, the dynamic dissipation is roughly 12 mW, well within the LQFP-52 thermal envelope of approximately 1 W with standard 4-layer PCB copper. For applications at +85 C ambient with sustained I/O switching, add a thermal copper pour (>=1 sq.in.) under the exposed pad and verify junction temperature rise with a thermocouple in characterization.
合规信息
RoHS compliant per Renesas product page. Not AEC-Q100 qualified - this part is intended for consumer and industrial use, not automotive. Renesas lifecycle note states the R8C/35C group is supported only for customers who have already adopted these products; RL78/G14 is recommended for new designs.
