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Renesas R5F2134CWJFP#U0
- Part No.:
- R5F2134CWJFP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F2134CWJFP#U0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,980
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Product details
Overview
R5F2134CWJFP from Renesas Electronics is a 16-bit R8C/34W Group microcontroller featuring an integrated CAN 2.0B module, 128 KB flash program memory, 10 KB data flash with background operation (BGO), and 10 KB RAM. It operates at up to 20 MHz (50 ns min. instruction time), supports −40°C to +85°C ambient temperature, and delivers 7 mA typical current consumption at 5.0 V - optimized for automotive LAN and industrial FA control nodes.
For engineers reviewing the R5F2134CWJFP datasheet, R5F2134CWJFP pinout, R5F2134CWJFP application, or R5F2134CWJFP equivalent, key selection criteria include CAN interface compliance (ISO 11898-1), 12-channel 10-bit ADC with sample-and-hold, multi-mode timers (RD ×2 with 6-pin PWM and three-phase waveform generation), LIN hardware support, and on-chip debug with flash rewrite capability.
Technical Context
The R5F2134CWJFP implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit hardware multiplier, and multiply-accumulate capability - enabling deterministic real-time control in resource-constrained embedded systems. Its clock system integrates XIN oscillator, high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator, with selectable dividers (1/2/4/8/16) and oscillation stop detection.
Peripheral integration includes UART0/UART2 (with I²C/IEBus modes), SSU, hardware LIN (using Timer RA and UART0), 16-mailbox CAN controller, and five independent timers (RA–RE) supporting input capture, output compare, PWM (including complementary and reset-synchronous three-phase), and event counting - all coordinated via a single-channel Data Transfer Controller (DTC) with 31 activation sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 50 ns min. execution time at 20 MHz - enables cycle-predictable motor control loops. |
| Memory | 128 KB flash ROM + 10 KB data flash (4 × 1 KB blocks, BGO enabled) + 10 KB RAM - supports firmware updates without halting application execution. |
| CAN Interface | Single-channel CAN 2.0B controller (ISO 11898-1 compliant) with 16 mailboxes - suitable for J1939 or CANopen node implementation in vehicle subsystems. |
| ADC | 10-bit resolution × 12 channels with sample-and-hold and sweep mode - captures synchronized analog sensor data across multiple inputs in one trigger sequence. |
| Timers | Timer RD ×2 (16-bit, 4 capture/compare registers each) supporting reset-synchronous PWM (6-pin three-phase) and complementary PWM - directly drives 3-phase inverter gate drivers. |
| Operating Range | −40°C to +85°C ambient, 2.7–5.5 V supply - qualified for under-hood automotive and industrial control environments. |
| Package | 48-pin LQFP (PLQP0048KB-A, 7 mm × 7 mm, 0.5 mm pitch) - compatible with standard surface-mount assembly and thermal management in compact ECUs. |
Pinout & Package
48-pin LQFP package (PLQP0048KB-A), 7 mm × 7 mm body, 0.5 mm pin pitch. Pin functions support multiplexed peripheral assignment via software configuration, including dedicated CAN (CRX0/CTX0), LIN (UART0 + Timer RA), and ADC (AN0–AN11) pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P6_1 / CTX0 | CAN Transmit Output | Drives differential CAN bus signal (dominant/recessive) via external transceiver - requires 120 Ω termination at bus ends. |
| P6_2 / CRX0 | CAN Receive Input | Accepts differential CAN bus signal; internal comparator converts to logic-level RX for CAN controller - immune to common-mode noise up to ±25 V. |
| P4_5 / ADTRG | ADC External Trigger | Synchronizes 12-channel ADC sampling to external events (e.g., motor commutation edge) - eliminates software latency in closed-loop timing. |
| P2_0 / TRDIOA0 | Timer RD Channel A0 I/O | Configurable as PWM output, input capture, or general-purpose I/O - used for phase-A high-side gate drive in 3-phase inverters. |
| P0_0–P0_7 | Analog Inputs AN7–AN0 | Dedicated 10-bit ADC input pins with internal sample-and-hold - routed separately from digital I/O to minimize noise coupling in precision sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CAN 2.0B Controller | 16-mailbox FIFO with message filtering and automatic retransmission - reduces CPU load during burst CAN traffic in automotive networks. |
| Data Flash with BGO | 10 KB (4 × 1 KB blocks) supports concurrent read-while-write - enables over-the-air firmware patching without interrupting real-time control tasks. |
| Three-Phase PWM Generation | Timer RD ×2 provides synchronized 6-pin complementary PWM outputs with dead-time insertion and fault protection - directly interfaces with 3-phase gate driver ICs. |
| On-Chip Debug & Flash Rewrite | Full JTAG-based on-chip debug with non-intrusive breakpoints and in-system flash programming - accelerates development and field firmware updates. |
| Multi-Source Interrupt Priority | 69 interrupt vectors with 7 priority levels and 9 external sources (INT0–INT4, KI0–KI3) - ensures deterministic response to critical events like CAN error frames or ADC triggers. |
Applications
| Automotive Body Control Module | Industrial Motor Drive Controller |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, lighting, and HVAC actuators in passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing CAN message handling (J1939/UDS), PWM fan speed control, and ADC-based temperature sensing. Use Value: Integrated CAN + LIN + 12-channel ADC eliminates external transceivers and signal conditioners - reducing BOM cost and PCB area by >15% versus discrete solutions. |
Use Scenario: Closed-loop control of 3-phase BLDC/PMSM motors in pumps, compressors, and conveyors. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms using Timer RD's three-phase PWM, ADC-triggered current sampling, and CAN-based command interface. Use Value: Hardware-accelerated PWM generation with dead-time control and synchronous ADC triggering achieves <1 µs timing jitter - meeting IEC 61800-3 EMC requirements. |
| Factory Automation I/O Node | Off-Road Vehicle Telematics Gateway |
Use Scenario: Distributed I/O unit collecting sensor data (temperature, pressure, position) and driving solenoids/relays in PLC-controlled machinery. IC Role / Device Role / Timing Role: CAN master node aggregating data from multiple slave sensors and forwarding via RS-485 or Ethernet bridge. Use Value: 128 KB flash stores dual-application firmware images (primary + backup), while data flash retains calibration constants across power cycles - ensuring zero downtime during field updates. |
Use Scenario: Telematics gateway in construction/mining equipment, aggregating CAN bus data (engine, hydraulics, GPS) and transmitting via cellular modem. IC Role / Device Role / Timing Role: Dual-CAN interface (one for engine network, one for chassis network) with message routing, filtering, and store-and-forward buffering. Use Value: 16-mailbox CAN controller handles concurrent high-priority diagnostics (UDS) and low-priority telemetry streams - preventing message loss during network congestion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F2134CXJFP | No data flash; 128 KB program ROM only; same CAN, timers, and ADC. | Lacks BGO-enabled data storage - unsuitable for field-updatable calibration tables or logging buffers. | Select when firmware is static and no runtime parameter storage is required; lower cost per unit. |
| R5F2134CYJFP | Includes 10 KB data flash (BGO) but no CAN module; identical package and core. | Cannot serve as CAN node - limited to LIN-only or UART-based networks in non-automotive FA systems. | Select for cost-sensitive industrial controllers requiring data logging but no vehicle bus connectivity. |
Compared with R5F2134CXJFP and R5F2134CYJFP, the R5F2134CWJFP uniquely combines CAN 2.0B, data flash with BGO, and full timer/peripheral feature set - making it the only drop-in solution for automotive-grade ECU designs requiring both network communication and persistent parameter storage.
Availability
R5F2134CWJFP is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor drives, factory automation I/O nodes, and off-road telematics gateways requiring stable component supply across extended product lifecycles.
Supply support for R5F2134CWJFP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, and power management ICs for automotive, industrial, and IoT applications.
The R8C/34W Group, including R5F2134CWJFP, was designed for cost-effective, high-integration automotive and industrial control applications requiring CAN connectivity, precise analog measurement, and deterministic real-time performance.
FAQ
What is the maximum operating frequency and voltage range for the R5F2134CWJFP?
The R5F2134CWJFP operates at a maximum external clock frequency of 20 MHz (minimum instruction execution time 50 ns) with a supply voltage range of 2.7 V to 5.5 V. It supports three clock sources: external crystal/resonator (XIN/XOUT), high-speed on-chip oscillator (adjustable), and low-speed on-chip oscillator - enabling flexible power/performance trade-offs in battery-powered or automotive environments.
Does the R5F2134CWJFP support CAN FD or only classical CAN?
The R5F2134CWJFP supports only classical CAN 2.0B (ISO 11898-1), not CAN FD. Its CAN module provides 16 mailboxes, message filtering, and automatic retransmission but lacks the variable bit rate, extended data length (up to 64 bytes), and CRC enhancements of CAN FD - making it suitable for legacy J1939 and CANopen networks but not next-generation high-throughput vehicle architectures.
How is the data flash organized and what endurance does it offer?
The R5F2134CWJFP includes 10 KB of data flash organized as four 1 KB blocks, supporting background operation (BGO) for concurrent read-while-write. It guarantees 10,000 erase/write cycles per block - sufficient for storing calibration coefficients, device configuration, or operational logs in automotive and industrial applications with infrequent updates.
Can the R5F2134CWJFP generate three-phase PWM waveforms with dead-time control?
Yes, the R5F2134CWJFP's Timer RD modules (two instances) support reset-synchronous PWM and complementary PWM modes, enabling direct generation of six synchronized PWM outputs for three-phase inverter control. Dead-time insertion is implemented in hardware via configurable delay registers - eliminating software overhead and ensuring sub-microsecond timing accuracy for gate driver safety.
What debug and programming interfaces does the R5F2134CWJFP provide?
The R5F2134CWJFP features full on-chip debug via JTAG interface, supporting non-intrusive breakpoints, real-time variable monitoring, and flash memory programming. It also supports in-system programming (ISP) through UART0 or the on-chip debug port - allowing firmware updates in the field without removing the device from the target board.
R5F2134CWJFP#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- R8C/3x/34W
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- CANbus, I2C, IEBus, LINbus, SIO, SSU, UART/USART
- Peripherals:
- POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 43
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F2134CWJFP#U0 FAQ
1.How can I place an order for R5F2134CWJFP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2134CWJFP#U0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F2134CWJFP#U0 reliable?
The price and inventory of R5F2134CWJFP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2134CWJFP#U0 is usually 5 days.
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Once your R5F2134CWJFP#U0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F2134CWJFP#U0?
For technical support, including R5F2134CWJFP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2134CWJFP#U0 requirements.
6.How does Aetrix verify that R5F2134CWJFP#U0 is sourced from the original manufacturer or authorized distributors?
All R5F2134CWJFP#U0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F2134CWJFP#U0 meets industry standards.
7.What is the process for return or replacement of R5F2134CWJFP#U0?
All R5F2134CWJFP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2134CWJFP#U0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F2134CWJFP#U0 part is unused and in its original packaging.
Return procedure for R5F2134CWJFP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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