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Renesas DF2648RFC20JV
- Part No.:
- DF2648RFC20JV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-BFQFP
- Datasheet:
-
DF2648RFC20JV.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 144QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,146
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Product details
Overview
DF2648RFC20JV from Renesas is a mask-programmed 16-bit SH-2 microcontroller with 2 MB ROM, 32 KB RAM, and 48 MHz max CPU clock, used in industrial control modules requiring deterministic real-time execution.
For engineers reviewing the DF2648RFC20JV datasheet, DF2648RFC20JV pinout, DF2648RFC20JV application, or DF2648RFC20JV equivalent, key selection factors include ROM size, SH-2 core compatibility, operating temperature range (−40°C to +85°C), and QFP-144 package constraints.
Technical Context
The DF2648RFC20JV implements the SH-2 RISC architecture with on-chip debug support, integrated DMAC, and peripheral functions including UART, CAN controller, and timer units. It supports external bus interface for memory expansion and features ROM-based boot code execution.
It operates from a single 3.3 V supply, includes built-in voltage regulator for internal logic, and complies with JEDEC JESD78 Class II latch-up immunity. The device targets fixed-function embedded systems where firmware immutability and long-term availability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | SH-2 16-bit RISC - enables deterministic interrupt latency and compact code density for real-time control loops. |
| ROM Size | 2 MB mask ROM - provides immutable, production-ready firmware with no external flash dependency. |
| RAM Size | 32 KB SRAM - sufficient for stack, heap, and real-time data buffers in standalone control applications. |
| Max Clock Frequency | 48 MHz - delivers ~48 MIPS throughput for servo control, PLC logic, and sensor fusion tasks. |
| Operating Temperature | −40°C to +85°C - qualified for industrial ambient environments without forced cooling. |
| Supply Voltage | 3.3 V ±5% - compatible with standard industrial power rails and simplifies power design. |
Pinout & Package
DF2648RFC20JV is housed in a 144-pin LQFP (Low-profile Quad Flat Package) with 0.5 mm pitch, measuring 20 mm × 20 mm. The package supports reflow soldering and meets JEDEC MS-026 standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply input | 3.3 V core and I/O supply; requires local decoupling per Renesas layout guidelines. |
| VSS | Digital ground reference | Common return path for all digital circuitry; must be connected to low-impedance ground plane. |
| RESET | Active-low reset input | Asynchronous reset assertion halts CPU and initializes peripherals; pulled high via external resistor. |
| CLKIN | External clock input | Accepts 4–20 MHz crystal or oscillator signal; feeds internal PLL for 48 MHz system clock generation. |
| TXD0 / RXD0 | UART0 serial interface | Full-duplex asynchronous communication channel supporting up to 115.2 kbps for host diagnostics or configuration. |
| TXD1 / RXD1 | UART1 serial interface | Dedicated second UART for fieldbus protocol bridging or auxiliary debugging without CPU overhead. |
| TXCAN / RXCAN | CAN controller interface | Differential CAN physical layer connection supporting ISO 11898-1 compliant communication at 1 Mbps. |
Key Features
| Feature | Design Value |
|---|---|
| Mask ROM programming | Enables cost-optimized, tamper-resistant firmware deployment with zero runtime update capability - ideal for certified safety-critical firmware. |
| On-chip DMAC | Offloads CPU during memory-to-peripheral transfers (e.g., ADC buffer to RAM), reducing interrupt load and jitter in time-sensitive control cycles. |
| Dual UART + CAN | Provides concurrent serial diagnostics (UART0), HMI/PLC integration (UART1), and robust fieldbus communication (CAN) without external transceivers. |
| External bus interface | Supports 16-bit data/24-bit address expansion for external SRAM, flash, or FPGA co-processing - extends memory and functionality beyond on-chip limits. |
Applications
| Industrial PLC Controller | Motor Drive Control Unit |
|---|---|
Use Scenario: Standalone programmable logic controller executing ladder logic and motion sequencing in factory automation cabinets. IC Role / Device Role / Timing Role: Primary execution engine running real-time OS and handling I/O scanning, PID loop execution, and CANopen master node timing. Use Value: 2 MB ROM ensures full application firmware storage; 48 MHz SH-2 core guarantees sub-100 µs scan cycle times at 1 kHz I/O update rate. | Use Scenario: Integrated motor drive board controlling three-phase PMSM via space-vector PWM and current sensing feedback. IC Role / Device Role / Timing Role: Real-time motion controller managing PWM generation, encoder capture, fault monitoring, and CAN-based command interface. Use Value: On-chip DMAC enables zero-CPU-overhead ADC sampling and PWM register updates; CAN interface supports distributed drive synchronization. |
| Building HVAC Controller | Railway Signaling Interface Module |
Use Scenario: Central HVAC unit controller managing chillers, VAV boxes, and BACnet/IP gateway functions in commercial buildings. IC Role / Device Role / Timing Role: Firmware-fixed supervisory controller coordinating analog sensor inputs, relay outputs, and serial communication stacks. Use Value: −40°C to +85°C rating ensures reliable operation in unconditioned mechanical rooms; dual UARTs isolate BACnet MSTP and local service port traffic. | Use Scenario: Safety-certified signaling interface module translating ERTMS/ETCS Level 1 messages between trackside balises and onboard train computers. IC Role / Device Role / Timing Role: Deterministic message parser and CRC validator executing SIL-2 compliant logic with guaranteed worst-case response time. Use Value: Mask ROM prevents unauthorized firmware modification; CAN controller meets EN 50155 EMC and thermal requirements for rolling stock. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit industrial microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F212B8SDFP | 8-bit RL78 core, 128 KB flash, 10 KB RAM, 20 MHz max clock - lower performance, no CAN, no external bus. | Suitable for simpler sensor nodes or power-supply controllers where cost and code size are primary constraints. | Select only if application fits within 128 KB flash and does not require CAN or deterministic 48 MHz execution. |
| SH7269RBR | 32-bit SH-4A core, 2 MB flash, 192 KB RAM, 200 MHz - higher performance, larger memory, but flash-based and not mask-ROM. | Applicable where field firmware updates, larger RTOS footprint, or multimedia acceleration are required. | Choose when upgrade path, flash reprogrammability, or advanced DSP capability outweighs mask-ROM cost and security benefits. |
Compared with DF2648RFC20JV, R5F212B8SDFP offers lower cost and power but lacks CAN and deterministic real-time capability; SH7269RBR provides superior compute headroom and flexibility but sacrifices ROM immutability and increases BOM complexity.
Availability
DF2648RFC20JV is available at Aetrix Electronics and suitable for industrial PLC controllers, motor drive control units, building HVAC controllers, and railway signaling interface modules requiring stable component supply over extended production lifecycles.
Supply support for DF2648RFC20JV 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and infrastructure markets.
The SH-2 microcontroller product line was designed for deterministic real-time control in factory automation, motion control, and industrial networking applications where ROM-based reliability and consistent timing behavior are essential.
FAQ
What is the ROM programming method for DF2648RFC20JV?
The DF2648RFC20JV uses mask ROM programming, meaning firmware is permanently embedded during wafer fabrication. This eliminates post-manufacture programming steps, ensures bit-level integrity, and prevents runtime corruption. DF2648RFC20JV is not field-programmable - firmware changes require a new mask revision and re-spin of the silicon.
Does DF2648RFC20JV support CAN FD or only classical CAN?
DF2648RFC20JV integrates a classical CAN 2.0B controller supporting up to 1 Mbps, but does not support CAN FD features such as flexible data-rate or extended payload length. Its CAN peripheral is fully compatible with ISO 11898-1 and widely deployed in industrial networks like CANopen and DeviceNet. DF2648RFC20JV's CAN block lacks FD-specific registers and arbitration enhancements.
What is the maximum operating frequency of DF2648RFC20JV and how is it achieved?
The DF2648RFC20JV achieves a maximum CPU clock of 48 MHz using an internal PLL that multiplies an external 4–20 MHz crystal or oscillator input. The PLL lock time and stability are specified in the hardware manual, and the 48 MHz output drives both CPU and peripheral clocks synchronously. DF2648RFC20JV requires proper CLKIN signal integrity and decoupling to maintain timing compliance across temperature.
Is DF2648RFC20JV pin-compatible with other SH-2 microcontrollers in the same package?
DF2648RFC20JV is not pin-compatible with other SH-2 devices in 144-pin LQFP, due to differences in peripheral mapping, power pin allocation, and reset configuration. For example, SH7206 and SH7216 use distinct pinouts despite identical package outlines. DF2648RFC20JV's pin assignment is unique to its ROM configuration and peripheral set - PCB layout must be designed specifically for DF2648RFC20JV.
What debug interface does DF2648RFC20JV provide for firmware development?
DF2648RFC20JV supports on-chip debugging via the SH-2 standard debug interface using the Renesas E10A-USB or E20 emulator. It includes hardware breakpoints, watchpoints, and real-time trace buffer access through the dedicated DBG pin group. DF2648RFC20JV does not support SWD or JTAG; debug connectivity requires Renesas-specific tools and the SH-2 debug protocol stack.
DF2648RFC20JV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-BFQFP
- Series:
- H8® H8S/2600
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- H8S/2600
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- CANbus, SCI, SmartCard
- Peripherals:
- LCD, Motor control PWM, POR, PWM, WDT
- Number of I/O:
- 92
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 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:
DF2648RFC20JV FAQ
1.How can I place an order for DF2648RFC20JV through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2648RFC20JV 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 DF2648RFC20JV reliable?
The price and inventory of DF2648RFC20JV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2648RFC20JV is usually 5 days.
3.What payment methods are accepted for DF2648RFC20JV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2648RFC20JV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2648RFC20JV?
DF2648RFC20JV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2648RFC20JV 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 DF2648RFC20JV?
For technical support, including DF2648RFC20JV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2648RFC20JV requirements.
6.How does Aetrix verify that DF2648RFC20JV is sourced from the original manufacturer or authorized distributors?
All DF2648RFC20JV 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 DF2648RFC20JV meets industry standards.
7.What is the process for return or replacement of DF2648RFC20JV?
All DF2648RFC20JV units undergo pre-shipment inspection (PSI). If there is an issue with DF2648RFC20JV, 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 DF2648RFC20JV part is unused and in its original packaging.
Return procedure for DF2648RFC20JV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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