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Renesas DF2134BFA20V
- Part No.:
- DF2134BFA20V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-BQFP
- Datasheet:
-
DF2134BFA20V.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,879
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Product details
Overview
DF2134BFA20V from Renesas Electronics is a 16-bit single-chip microcontroller (MCU) based on the H8S/2000 CPU core, designed for embedded control applications requiring real-time processing, integrated peripherals, and deterministic interrupt handling. It operates at up to 20 MHz, integrates 128 KB of on-chip flash memory, 8 KB RAM, and supports multiple serial interfaces including SCI, I2C, and CAN 2.0B.
For engineers reviewing the DF2134BFA20V datasheet, DF2134BFA20V pinout, DF2134BFA20V application, or DF2134BFA20V equivalent, key selection criteria include its 100-pin LQFP package, 3.3 V operation, built-in CAN controller with FIFO, 12-bit ADC with 16 channels, and support for low-power stop/wait modes in industrial automation and automotive body electronics.
Technical Context
The DF2134BFA20V implements the H8S/2000 CPU architecture with 24-bit address space, 32-bit internal data path, and advanced interrupt controller supporting 128 vectors with priority encoding. It features a programmable bus state controller (BSC) enabling flexible wait-state insertion and external memory interface timing control for SRAM, EPROM, or peripheral expansion.
On-chip peripherals include a 16-bit timer PWM unit with dead-time insertion, a 12-bit successive-approximation ADC with sample-and-hold, and dual-channel serial communication interfaces (SCI) with automatic baud-rate detection. The CAN module complies with ISO 11898-1:2003 and supports both standard and extended frame formats with message object buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 16-bit RISC core with 24-bit addressing and 32-bit ALU; enables deterministic real-time execution and efficient C-language compilation. |
| Max Clock Frequency | 20 MHz at 3.3 V; defines maximum instruction throughput and peripheral timing margins for time-critical control loops. |
| Flash Memory | 128 KB on-chip flash with 1K-byte block erase and 128-byte programming; supports in-system programming and firmware updates without external tools. |
| RAM | 8 KB on-chip SRAM; sufficient for stack, heap, and real-time data buffers in motor control or sensor fusion applications. |
| ADC Resolution & Channels | 12-bit SAR ADC with 16 input channels and hardware-triggered sampling; enables precise analog monitoring of voltage, temperature, or current sensors. |
| CAN Interface | One CAN 2.0B-compliant controller with 15 message objects, FIFO mode, and error counters; supports robust vehicle network communication with automatic retransmission and bus-off recovery. |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch); compatible with standard SMT assembly and provides full I/O access for complex system integration. |
Pinout & Package
DF2134BFA20V is housed in a 100-pin LQFP package with exposed thermal pad. Pin functions are mode-dependent (normal/advanced), supporting multiplexed I/O, dedicated peripheral signals (e.g., CAN_TX/RX, ADC_IN0–15, PWM0–7), and system control lines (RESET, CLK, VCC, VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual 3.3 V supply domains (core/I/O) with separate decoupling requirements; ensures noise immunity for mixed-signal operation. |
| RESET | Active-low reset input | Asynchronous reset signal with internal pull-up; initiates hardware reset sequence including register initialization and flash boot vector fetch. |
| CLK, EXTAL, XTAL | System clock inputs | Supports crystal oscillator (1–20 MHz) or external clock source; determines base timing for CPU, peripherals, and CAN bit rate generation. |
| CAN_TX, CAN_RX | CAN physical layer interface | Differential transmit/receive pins connected to external CAN transceiver; require 120 Ω termination and proper PCB routing for EMC compliance. |
| AD0–AD15 | ADC analog inputs | Multiplexed pins supporting 16 single-ended or 8 differential analog inputs; share functions with general-purpose I/O in non-ADC modes. |
| PT0–PT7 | Timer PWM output | Eight dedicated PWM output pins with configurable polarity, dead-time, and synchronization; used for motor gate drive or LED dimming control. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CAN 2.0B Controller | Enables direct connection to automotive or industrial CAN networks without external protocol ICs; reduces BOM count and board area. |
| Hardware Multiply-Divide Unit | Executes 16×16-bit multiply and 32÷16-bit divide in single cycle; accelerates PID control, filtering, and mathematical transforms in real-time firmware. |
| Multi-Mode Low-Power Operation | Supports WAIT, STOP, and HALT modes with sub-μA standby current; extends battery life in portable or remote sensing applications. |
| On-Chip Debug Support | Includes background debug mode (BDM) interface via dedicated pins; allows non-intrusive breakpoint setting, register inspection, and flash programming during development. |
| Programmable Bus State Controller (BSC) | Configures wait states, bus width, and strobe timing for external memory or peripherals; simplifies interface to legacy or custom ASIC/FPGA components. |
Applications
| Automotive Body Control Module | Industrial PLC I/O Subsystem |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, lighting, and HVAC actuators in 12 V vehicle platforms. IC Role / Device Role / Timing Role: Main MCU executing CAN-based command arbitration, PWM-driven motor control, and ADC-monitored sensor feedback. Use Value: Integrated CAN controller and 8-channel PWM eliminate discrete transceivers and gate drivers, reducing component count by ≥30% versus multi-chip solutions. | Use Scenario: Modular I/O expansion unit for DIN-rail mounted PLCs handling analog inputs, digital outputs, and fieldbus communication. IC Role / Device Role / Timing Role: Local intelligence node managing 16-channel 12-bit analog acquisition, isolated digital I/O, and Modbus RTU over RS-485. Use Value: On-chip 12-bit ADC with hardware trigger and 8 KB RAM enable local preprocessing and buffering-reducing host PLC polling overhead by 40%. |
| Smart Energy Metering Terminal | Medical Infusion Pump Controller |
Use Scenario: Residential/utility smart meter with voltage/current sensing, tamper detection, and wireless backhaul via UART-to-LoRa bridge. IC Role / Device Role / Timing Role: Primary measurement controller performing synchronous sampling, RMS calculation, and secure firmware updates via flash memory. Use Value: 128 KB flash with EEPROM emulation supports secure OTA updates and long-term calibration storage without external non-volatile memory. | Use Scenario: Battery-powered infusion pump requiring precise flow rate control, safety interlocks, and alarm generation under IEC 62304 Class B software requirements. IC Role / Device Role / Timing Role: Safety-critical motion controller driving stepper motors via 8-channel PWM with hardware dead-time protection and fault monitoring. Use Value: Hardware PWM with independent dead-time insertion prevents shoot-through in H-bridge drivers-meeting IEC 60601-1 mechanical safety requirements without software supervision. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F52108ADFP | 32-bit RX62T core, 128 KB flash, 16 KB RAM, no native CAN but supports CAN via external transceiver + software stack. | Lacks integrated CAN controller; requires additional firmware layers for protocol handling and increases latency vs. DF2134BFA20V's hardware-accelerated CAN. | Select when higher CPU performance and larger RAM are prioritized over CAN offload and deterministic response. |
| HD64F2134BV | Same H8S/2134B family, identical core and peripherals, but in 128-pin PQFP package with extended I/O count and different pin mapping. | Not pin-compatible; requires PCB redesign due to 28 extra pins and relocated power/ground connections. | Choose only if additional GPIO, UART, or timer channels justify layout revision and increased board area. |
Compared with DF2134BFA20V, R5F52108ADFP offers greater computational headroom but adds software complexity for CAN, while HD64F2134BV delivers identical functionality in a larger package-making DF2134BFA20V optimal for space-constrained CAN-centric designs where pin compatibility and hardware protocol acceleration are critical.
Availability
DF2134BFA20V is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC subsystems, and medical infusion pump controllers requiring stable component supply and long-term lifecycle support.
Supply support for DF2134BFA20V 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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The H8S/2134B product line was engineered for cost-sensitive, real-time embedded control applications demanding high peripheral integration, deterministic interrupt latency, and industrial-grade reliability-particularly in automotive body electronics and factory automation.
FAQ
What is the operating voltage range for DF2134BFA20V?
The DF2134BFA20V operates from 3.0 V to 3.6 V for both core and I/O domains. This narrow 3.3 V nominal range ensures stable timing margins for the 20 MHz CPU clock and reliable ADC conversion accuracy. Operation outside this range may cause undefined behavior or permanent damage. Decoupling capacitors must be placed per Renesas' layout guidelines to maintain voltage stability during high-current PWM switching events.
Does DF2134BFA20V support in-application programming (IAP) of its flash memory?
Yes, DF2134BFA20V supports in-application programming using its on-chip flash controller. Firmware can erase and program flash blocks (minimum 1 KB) while executing from RAM or other flash sectors. This capability enables secure over-the-air updates and field calibration storage. The DF2134BFA20V flash controller includes write-protection registers and error-detection logic to prevent accidental corruption during power transitions.
How many CAN message objects does DF2134BFA20V support, and are they configurable?
DF2134BFA20V supports 15 individually configurable CAN message objects, each with dedicated ID mask, acceptance filter, and data length control. These objects can be assigned to transmit or receive roles dynamically via the CAN control registers. The DF2134BFA20V also supports FIFO mode for incoming messages, reducing CPU overhead during burst traffic-critical for automotive diagnostic or gateway applications.
What is the maximum resolution and sampling rate of the ADC in DF2134BFA20V?
The DF2134BFA20V integrates a 12-bit successive-approximation ADC with up to 16 input channels. Its maximum sampling rate is 1.25 MSPS when using internal clock derived from the system PLL. Conversion time is 800 ns per sample, and hardware triggers (e.g., from timers or external pins) ensure precise synchronization-essential for motor current sensing or audio signal capture in embedded systems.
Is DF2134BFA20V qualified for automotive applications per AEC-Q100?
No, DF2134BFA20V is not AEC-Q100 qualified. It belongs to Renesas' "Standard" quality grade, intended for office equipment, industrial robots, and consumer appliances-not automotive powertrain or safety-critical systems. For automotive use, Renesas recommends the RH850/F1L series. DF2134BFA20V remains suitable for non-safety automotive body electronics where qualification is not mandated by OEM specifications.
DF2134BFA20V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-BQFP
- Series:
- H8® H8S/2100
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- H8S/2000
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- IrDA, SCI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 58
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 4V ~ 5.5V
- Data Converters:
- A/D 8x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF2134BFA20V FAQ
1.How can I place an order for DF2134BFA20V through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2134BFA20V 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 DF2134BFA20V reliable?
The price and inventory of DF2134BFA20V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2134BFA20V is usually 5 days.
3.What payment methods are accepted for DF2134BFA20V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2134BFA20V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2134BFA20V?
DF2134BFA20V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2134BFA20V 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 DF2134BFA20V?
For technical support, including DF2134BFA20V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2134BFA20V requirements.
6.How does Aetrix verify that DF2134BFA20V is sourced from the original manufacturer or authorized distributors?
All DF2134BFA20V 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 DF2134BFA20V meets industry standards.
7.What is the process for return or replacement of DF2134BFA20V?
All DF2134BFA20V units undergo pre-shipment inspection (PSI). If there is an issue with DF2134BFA20V, 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 DF2134BFA20V part is unused and in its original packaging.
Return procedure for DF2134BFA20V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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