R5F2135CCNFP - 16-bit R8C/35C MCU, 128KB Flash, 52-LQFP | Renesas
Référence : R5F2135CCNFP ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 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 Présentation
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.
Alternatives de remplacement direct pour R5F2135CCNFP — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
R5F2135CMNFP#50
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
R5F2135CCDFP#V0
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
R5F2135CCNFP#50
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
R5F2135CCNFP#V0
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
R5F2135CJFP#50
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
R5F2135CCNFP Valeurs maximales et caractéristiques électriques
| 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 |
| Boîtier | 52-pin LQFP (10 x 10 mm, 0.65 mm pitch) |
| Type de montage | Surface Mount |
| Température de fonctionnement | -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 |
| Statut RoHS | Compliant |
Configuration des broches de R5F2135CCNFP
| Broche 1 | VREF — ADC reference voltage input |
| Broche 2 | AVSS — Analog ground |
| Broche 3 | P0_0/AN0 — Port 0 bit 0 / ADC input 0 |
| Broche 4 | P0_1/AN1 — Port 0 bit 1 / ADC input 1 |
| Broche 5 | P0_2/AN2 — Port 0 bit 2 / ADC input 2 |
| Broche 6 | P0_3/AN3 — Port 0 bit 3 / ADC input 3 |
| Broche 7 | P0_4/AN4 — Port 0 bit 4 / ADC input 4 |
| Broche 8 | P0_5/AN5 — Port 0 bit 5 / ADC input 5 |
| Broche 9 | P0_6/AN6 — Port 0 bit 6 / ADC input 6 |
| Broche 10 | P0_7/AN7 — Port 0 bit 7 / ADC input 7 |
| Broche 11 | P1_0 — Port 1 bit 0 (input only) |
| Broche 12 | P1_1 — Port 1 bit 1 (input only) |
| Broche 13 | P1_2/INT0 — Port 1 bit 2 / external interrupt 0 |
| Broche 14 | P1_3/INT1 — Port 1 bit 3 / external interrupt 1 |
| Broche 15 | P1_4/INT2 — Port 1 bit 4 / external interrupt 2 |
| Broche 16 | P1_5/INT3 — Port 1 bit 5 / external interrupt 3 |
| Broche 17 | P1_6/INT4 — Port 1 bit 6 / external interrupt 4 |
| Broche 18 | P1_7/INT5 — Port 1 bit 7 / external interrupt 5 |
| Broche 19 | P3_0 — Port 3 bit 0 |
| Broche 20 | P3_1 — Port 3 bit 1 |
| Broche 21 | P3_2 — Port 3 bit 2 |
| Broche 22 | P3_3 — Port 3 bit 3 |
| Broche 23 | P3_4 — Port 3 bit 4 |
| Broche 24 | P3_5 — Port 3 bit 5 |
| Broche 25 | P3_6 — Port 3 bit 6 |
| Broche 26 | P3_7 — Port 3 bit 7 |
| Broche 27 | P4_0 — Port 4 bit 0 |
| Broche 28 | P4_1 — Port 4 bit 1 |
| Broche 29 | P4_2 — Port 4 bit 2 |
| Broche 30 | P4_3 — Port 4 bit 3 |
| Broche 31 | P4_4 — Port 4 bit 4 |
| Broche 32 | P4_5 — Port 4 bit 5 |
| Broche 33 | P4_6 — Port 4 bit 6 |
| Broche 34 | P4_7 — Port 4 bit 7 |
| Broche 35 | P5_0 — Port 5 bit 0 |
| Broche 36 | P5_1 — Port 5 bit 1 |
| Broche 37 | P5_2 — Port 5 bit 2 |
| Broche 38 | P5_3 — Port 5 bit 3 |
| Broche 39 | P5_4 — Port 5 bit 4 |
| Broche 40 | P5_5 — Port 5 bit 5 |
| Broche 41 | P5_6 — Port 5 bit 6 |
| Broche 42 | P5_7 — Port 5 bit 7 |
| Broche 43 | XIN — Crystal oscillator input |
| Broche 44 | XOUT — Crystal oscillator output |
| Broche 45 | RESET — Reset input (active low) |
| Broche 46 | MODE — Mode select (single-chip / programming) |
| Broche 47 | VCC — Digital supply voltage |
| Broche 48 | VSS — Digital ground |
| Broche 49 | VCC — Digital supply voltage (second bond) |
| Broche 50 | VSS — Digital ground (second bond) |
| Broche 51 | P6_0 — Port 6 bit 0 |
| Broche 52 | P6_1 — Port 6 bit 1 |
Applications typiques
R5F2135CCNFP convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour R5F2135CCNFP — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Wide 1.8 V to 5.5 V operating voltage supports direct battery connection without external LDO (vs R5F2135CCDFP#V0)
- High code-density 16-bit R8C CISC core with bit-manipulation instructions (vs RL78/G14 (recommended migration target))
- On-chip 10-bit ADC plus 4 KB data Flash eliminates external EEPROM (vs R5F2135CMNFP#50 (parametric equivalent))
Notes de conception
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.
Informations de conformité
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.
