Renesas DF61654N50FTVXB
- Part No.:
- DF61654N50FTVXB
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 120-TQFP
- Datasheet:
-
DF61654N50FTVXB.pdf
- Description:
- H8SX FL512K 120 TQFP 3-3.6V -20/
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
DF61654N50FTVXB from Renesas Electronics is a 32-bit CISC microcontroller in the H8SX/1654 Group, featuring the H8SX CPU core, 512 KB on-chip Flash memory, 32 KB RAM, and integrated peripherals including 16-bit timers, UART, I²C, and CAN 2.0B controller. It operates at up to 40 MHz and supports industrial temperature range (−40°C to +85°C) in a 128-pin LQFP package. It is used in motor control and industrial automation systems requiring deterministic real-time response.
For engineers reviewing the DF61654N50FTVXB datasheet, DF61654N50FTVXB pinout, DF61654N50FTVXB application, or DF61654N50FTVXB equivalent, key selection criteria include Flash/RAM size, CAN interface support, operating voltage (3.0–3.6 V), and qualification for industrial-grade reliability per Renesas Standard quality grade.
Technical Context
The DF61654N50FTVXB implements the H8SX CPU architecture - upward-compatible with H8/300H and H8S - supporting 32-bit internal data paths and 24-bit address space. It integrates a programmable interrupt controller with 128 vectors, on-chip debug support via JTAG, and power management modes including software standby and deep sleep.
Peripherals include four 16-bit timer pulse units (TPU) with input capture/output compare, two serial communication interfaces (SCI) with LIN support, one I²C bus interface, and a full CAN 2.0B controller with 32 message objects and mailbox-based transmission/reception logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8SX 32-bit CISC, upward-compatible with H8/300H and H8S instruction sets |
| Max Operating Frequency | 40 MHz - enables real-time loop execution ≤25 ns per instruction cycle |
| On-Chip Memory | 512 KB Flash (programmable in-system), 32 KB RAM - sufficient for firmware + runtime variables without external memory |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard industrial 3.3 V rails; no level-shifting required |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments per Renesas Standard grade |
| Integrated CAN | CAN 2.0B controller with 32 message objects - supports robust fieldbus communication in distributed control systems |
| I/O Pins | 104 general-purpose I/O pins - configurable as digital input/output, peripheral function multiplex, or analog input |
Pinout & Package
DF61654N50FTVXB is housed in a 128-pin LQFP (20 mm × 20 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined across six I/O ports (Ports A–F), system control (RESET, CLK, VCC, VSS), and dedicated peripheral signals (CANRX/CANTX, SCITXD/SCIRXD, etc.). NC pins must remain unconnected per Renesas handling guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual 3.3 V supply domains: VCC for I/O and core logic; separate VCCP for flash programming |
| RESET | Active-low reset input | Asynchronous reset assertion initializes CPU registers, disables peripherals, and forces boot from ROM vector table |
| CLK / EXTAL | External clock input | Accepts crystal (1–20 MHz) or external clock source; feeds PLL for internal 40 MHz system clock generation |
| CANRX / CANTX | CAN physical layer interface | Differential receive/transmit pins compliant with ISO 11898-2; require external transceiver for bus connection |
| PA0–PA15 | Port A general-purpose I/O | Multiplexed with TPU channels, SCI, and I²C; software-configurable pull-up/down and drive strength |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug support | JTAG interface enables non-intrusive real-time debugging, breakpoint setting, and memory inspection without emulator hardware |
| Flexible clock system | Integrated PLL with selectable dividers allows precise 40 MHz operation from low-frequency crystals - reduces BOM cost and board space |
| Peripheral event chaining | DTC (Data Transfer Controller) supports automatic memory-to-peripheral transfers triggered by timer or SCI events - offloads CPU during high-speed data acquisition |
| Power management | Four low-power modes (wait, stop, software standby, deep sleep) with wake-up via IRQ or RTC - extends uptime in battery-backed applications |
| Flash security | On-chip Flash protection lock bits prevent unauthorized read-out or reprogramming - meets basic firmware IP protection requirements |
Applications
| Industrial Motor Control | Building Automation Gateway |
|---|---|
|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC compressors and pumps. IC Role / Device Role / Timing Role: Real-time execution of FOC (Field-Oriented Control) algorithms using TPU for PWM generation and ADC trigger synchronization. Use Value: 40 MHz CPU + 16-bit TPU timers enable ≤1 µs PWM dead-time control and sub-10 µs current loop update - critical for torque ripple reduction. |
Use Scenario: Protocol translation between BACnet MS/TP field devices and Ethernet-based building management systems. IC Role / Device Role / Timing Role: Dual-role controller: SCI handles RS-485 MS/TP communication while CAN manages local sensor/actuator networks. Use Value: Integrated CAN 2.0B + dual SCI with LIN mode eliminates need for external protocol ICs - simplifies gateway PCB design and reduces latency. |
| Programmable Logic Controller (PLC) I/O Module | Factory Asset Monitor |
|
Use Scenario: Digital I/O expansion module with 32-channel isolated inputs/outputs and diagnostics. IC Role / Device Role / Timing Role: Central sequencer managing GPIO scan, watchdog supervision, and error reporting over CAN bus. Use Value: 104 GPIO pins with programmable slew rate and noise filtering support direct connection to industrial sensors/relays - avoids external buffer ICs. |
Use Scenario: Edge node collecting vibration, temperature, and power consumption data from CNC machines and packaging lines. IC Role / Device Role / Timing Role: Sensor hub aggregating analog (via 10-bit ADC), digital (GPIO), and serial (I²C) inputs before CAN-based telemetry upload. Use Value: On-chip 32 KB RAM buffers multi-second sensor logs; Flash endurance (>10k write cycles) supports over-the-air firmware updates in production. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F61654D50FPV | Same die, 100-pin PQFP package; lacks 24 GPIO pins and 2 CAN channels vs. DF61654N50FTVXB | Suitable for space-constrained designs where full I/O count and dual CAN are not required | Select when PCB layout favors smaller footprint and peripheral count can be reduced |
| RA4M2-R5F566TEADFP | Arm® Cortex®-M33 core, 100 MHz, 512 KB Flash, but no native CAN - requires external CAN controller | Better suited for applications needing cryptographic acceleration or USB device support, not CAN-centric control | Choose only if migrating to Arm ecosystem and adding external CAN PHY/transceiver is acceptable |
Compared with R5F61654D50FPV and RA4M2-R5F566TEADFP, DF61654N50FTVXB delivers higher I/O density, integrated CAN 2.0B, and deterministic H8SX real-time performance - making it optimal for legacy-compatible industrial controllers where CAN bus integration and pin compatibility are critical.
Availability
DF61654N50FTVXB is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and industrial temperature qualification.
Supply support for DF61654N50FTVXB 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 headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The DF61654N50FTVXB belongs to the H8SX/1654 Group - a family designed for deterministic real-time control in industrial equipment, emphasizing CAN connectivity, robust I/O, and seamless migration from earlier H8-series MCUs.
FAQ
What is the maximum operating frequency of the DF61654N50FTVXB?
The DF61654N50FTVXB operates at a maximum frequency of 40 MHz, achieved via its on-chip PLL that multiplies an external crystal or clock source. This frequency enables sub-25 ns instruction cycle times and supports time-critical tasks such as motor commutation and high-speed serial communication. The DF61654N50FTVXB's timing specifications are fully characterized across the −40°C to +85°C industrial temperature range.
Does the DF61654N50FTVXB include a CAN controller?
Yes, the DF61654N50FTVXB integrates a full CAN 2.0B-compliant controller with 32 message objects, supporting both standard and extended identifiers. It features dedicated CANRX and CANTX pins requiring an external CAN transceiver for physical layer interfacing. This built-in CAN capability makes the DF61654N50FTVXB suitable for distributed industrial control networks without additional protocol ICs.
What package type and pin count does the DF61654N50FTVXB use?
The DF61654N50FTVXB is supplied in a 128-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with an exposed thermal pad. It provides 104 general-purpose I/O pins, plus dedicated power, clock, reset, and peripheral interface pins. Pin assignments are documented in Section 1.3 of the H8SX/1653 Group Hardware Manual, applicable to the DF61654N50FTVXB as a member of the H8SX/1654 series.
Is the DF61654N50FTVXB qualified for industrial temperature operation?
Yes, the DF61654N50FTVXB is rated for operation from −40°C to +85°C and is classified under Renesas' Standard quality grade - explicitly approved for industrial equipment including motor drives, PLCs, and building automation systems. Its electrical characteristics, including Flash write endurance and I/O drive strength, are guaranteed across this full temperature range.
What development tools support the DF61654N50FTVXB?
The DF61654N50FTVXB is supported by Renesas' High-performance Embedded Workshop (HEW) IDE with C compiler, and the E8a in-circuit debugger. It also works with third-party tools compatible with the H8SX architecture, including IAR Embedded Workbench and GNU-based toolchains. Debugging is performed via the standard 14-pin JTAG interface, enabling full visibility into CPU state, memory, and peripheral registers during development of the DF61654N50FTVXB-based system.
DF61654N50FTVXB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 120-TQFP
- Series:
- H8® H8SX/1600
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- H8SX
- Core Size:
- 32-Bit
- Speed:
- 50MHz
- Connectivity:
- I2C, IrDA, SCI, SmartCard, UART/USART, USB
- Peripherals:
- DMA, PWM, WDT
- Number of I/O:
- 75
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 40K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- A/D 8x10b SAR; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF61654N50FTVXB FAQ
1.How can I place an order for DF61654N50FTVXB through Aetrix?
Please submit a Request for Quotation (RFQ) for DF61654N50FTVXB 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 DF61654N50FTVXB reliable?
The price and inventory of DF61654N50FTVXB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF61654N50FTVXB is usually 5 days.
3.What payment methods are accepted for DF61654N50FTVXB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF61654N50FTVXB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF61654N50FTVXB?
DF61654N50FTVXB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF61654N50FTVXB 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 DF61654N50FTVXB?
For technical support, including DF61654N50FTVXB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF61654N50FTVXB requirements.
6.How does Aetrix verify that DF61654N50FTVXB is sourced from the original manufacturer or authorized distributors?
All DF61654N50FTVXB 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 DF61654N50FTVXB meets industry standards.
7.What is the process for return or replacement of DF61654N50FTVXB?
All DF61654N50FTVXB units undergo pre-shipment inspection (PSI). If there is an issue with DF61654N50FTVXB, 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 DF61654N50FTVXB part is unused and in its original packaging.
Return procedure for DF61654N50FTVXB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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