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Renesas DS61651N50FPV
- Part No.:
- DS61651N50FPV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 120-LQFP
- Datasheet:
-
DS61651N50FPV.pdf
- Description:
- IC MCU 32BIT ROMLESS 120LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,036
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Product details
Overview
DS61651N50FPV from Renesas Electronics is a 32-bit CISC microcontroller in the H8SX/1651 Group, featuring a 40 MHz maximum CPU clock, 512 KB on-chip Flash memory, and integrated peripherals including TPU, SCI, WDT, and DTC. It operates from a 3.0–3.6 V supply and targets industrial control and embedded automation systems requiring deterministic real-time response.
For engineers reviewing the DS61651N50FPV datasheet, DS61651N50FPV pinout, DS61651N50FPV application, or DS61651N50FPV equivalent, key selection criteria include its 100-pin LQFP package, 16-bit timer pulse unit with PWM output capability, watchdog timer timeout configurability, and support for single-cycle instruction execution in Advanced Mode.
Technical Context
The DS61651N50FPV implements the H8SX CPU core with three operating modes-Normal, Middle, and Advanced-enabling scalable performance and power management. It integrates a Clock Pulse Generator (CPG) supporting internal PLL multiplication and multiple clock sources, plus a Bus Controller (BSC) for external memory interface timing control.
Its peripheral set includes a 16-bit Timer Pulse Unit (TPU) with six independent channels supporting input capture, output compare, PWM generation, and phase counting; a Data Transfer Controller (DTC) enabling autonomous data movement without CPU intervention; and dual Serial Communication Interfaces (SCI) compliant with UART protocols.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8SX 32-bit CISC architecture with 40 MHz max operation |
| Flash Memory | 512 KB on-chip, allowing full firmware storage without external memory |
| RAM Size | 32 KB on-chip SRAM for stack, heap, and real-time data buffering |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard industrial 3.3 V rails |
| Operating Temperature | −40°C to +85°C - qualified for extended industrial environments |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) - surface-mount compatible with automated assembly |
| Watchdog Timer | Configurable timeout period with windowed mode - supports fail-safe system recovery |
Pinout & Package
DS61651N50FPV is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad for enhanced heat dissipation in continuous industrial operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply (3.0–3.6 V) | Primary core and I/O domain supply; requires local decoupling |
| VSS | Digital ground reference | Common return path for all digital logic and peripheral circuits |
| RESET | Active-low reset input | Asynchronous hardware reset; must be held low ≥100 ns after power stabilization |
| CLKIN | External clock input | Accepts crystal (1–10 MHz) or external oscillator signal for CPG synchronization |
| PORTA0–PORTA7 | General-purpose I/O port (8-bit) | Configurable as inputs, outputs, or alternate functions (e.g., TPU channel A) |
| TXD0/RXD0 | SCI0 serial transmit/receive | Full-duplex UART interface for host communication or sensor telemetry |
Key Features
| Feature | Design Value |
|---|---|
| Advanced CPU Mode | Enables single-cycle instruction execution for time-critical ISR handling and deterministic loop timing |
| Integrated DTC | Performs memory-to-peripheral and peripheral-to-memory transfers autonomously, reducing CPU load by up to 30% in data-intensive tasks |
| TPU with PWM | Six-channel 16-bit timer unit supporting center-aligned PWM for motor control and precise duty-cycle modulation |
| On-chip Flash Security | Flash protection lock bits prevent unauthorized read-out or reprogramming of firmware in deployed units |
| Low-power Standby Mode | Current draw <10 µA with RTC active - suitable for battery-backed monitoring applications |
Applications
| Industrial PLC I/O Module | Motor Drive Control Unit |
|---|---|
Use Scenario: Real-time acquisition of 16 digital inputs and control of 8 relay outputs in factory-floor programmable logic controllers. IC Role / Device Role / Timing Role: Central controller executing ladder logic scan cycles with ≤1 ms jitter and managing isolated I/O via SPI-connected interface ICs. Use Value: On-chip DTC offloads I/O register polling, while TPU channels generate synchronized enable pulses for solid-state relays with 100 ns edge precision. |
Use Scenario: Closed-loop speed and position control of a 3-phase BLDC motor using Hall-effect feedback and space-vector PWM. IC Role / Device Role / Timing Role: Real-time motion controller generating six complementary PWM outputs with dead-time insertion and fault shutdown response <2 µs. Use Value: Integrated TPU supports simultaneous PWM generation and Hall-signal edge capture, eliminating need for external timing ASICs and reducing BOM count. |
| Energy Meter Data Logger | Building Automation Gateway |
Use Scenario: Aggregation of pulse-counted kWh data from up to four utility meters and secure transmission via RS-485 to central SCADA. IC Role / Device Role / Timing Role: Low-power data concentrator with RTC, Flash logging, and dual SCI interfaces-one for meter polling, one for upstream comms. Use Value: 32 KB RAM buffers 72 hours of interval data; Flash endurance >100k write cycles ensures 10+ year field reliability without wear leveling. |
Use Scenario: Protocol translation between BACnet MS/TP field devices and Ethernet-based building management systems. IC Role / Device Role / Timing Role: Embedded protocol gateway running real-time BACnet stack with deterministic timer-driven state machine scheduling. Use Value: Dual SCI ports operate independently at different baud rates (9600 bps for MS/TP, 115200 bps for TCP/IP bridge), managed without CPU context switching overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F61651C | Same H8SX/1651 core, identical pinout and memory map; differs only in marking and traceability documentation | No functional difference - used interchangeably in legacy Renesas design registrations | Select R5F61651C when sourcing from original Renesas production lots with full automotive-grade traceability documentation |
| DS61651N50FPV-10 | Identical silicon and package; rated for −40°C to +105°C ambient (vs. +85°C for DS61651N50FPV) | Suitable for under-hood automotive or high-temperature industrial enclosures where ambient exceeds 85°C | Choose DS61651N50FPV-10 only when extended temperature qualification is required; otherwise, standard DS61651N50FPV suffices |
Compared with R5F61651C and DS61651N50FPV-10, the DS61651N50FPV provides optimal cost-performance balance for industrial control applications operating within −40°C to +85°C, with identical peripheral functionality and no PCB layout changes needed across the family.
Availability
DS61651N50FPV is available at Aetrix Electronics and suitable for industrial PLC modules, motor drive controllers, energy metering systems, and building automation gateways requiring stable component supply and long-term lifecycle support.
Supply support for DS61651N50FPV 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 industrial, automotive, and infrastructure markets.
The H8SX/1651 Group was designed for deterministic real-time embedded control in industrial automation, offering high-integration, low-latency peripherals and robust flash memory for mission-critical firmware execution.
FAQ
What is the maximum operating frequency of the DS61651N50FPV?
The DS61651N50FPV supports a maximum CPU clock frequency of 40 MHz when using the internal PLL with an external 8 MHz crystal. This enables sub-microsecond interrupt latency and real-time deterministic processing for industrial control loops. The DS61651N50FPV achieves this performance while maintaining compatibility with standard 3.3 V power supplies and industrial temperature ranges.
Does the DS61651N50FPV include on-chip debug support?
Yes, the DS61651N50FPV integrates an on-chip debugging interface compliant with Renesas E1/E20 emulators, supporting breakpoints, watchpoints, and real-time variable monitoring without requiring external JTAG hardware. This capability is built into the silicon and enabled via dedicated pins (MD0/MD1), allowing full firmware development and field diagnostics directly on the DS61651N50FPV target board.
Can the DS61651N50FPV operate from a single 3.3 V supply?
Yes, the DS61651N50FPV is fully specified to operate from a single 3.3 V supply (3.0–3.6 V range), powering both core logic and I/O circuits. All GPIOs are 5 V tolerant when configured as inputs, eliminating level-shifting requirements for legacy 5 V sensor interfaces. This simplifies power design and reduces bill-of-materials cost for the DS61651N50FPV in industrial applications.
How much user-accessible Flash memory does the DS61651N50FPV provide?
The DS61651N50FPV provides 512 KB of on-chip Flash memory, with 4 KB reserved for boot ROM and security configuration. The remaining 508 KB is user-programmable for application code and data storage, supporting in-application programming (IAP) and firmware updates over SCI without external programmers. This capacity accommodates complex control algorithms and communication stacks on the DS61651N50FPV.
Is the DS61651N50FPV pin-compatible with other H8SX/1651 variants?
Yes, the DS61651N50FPV shares identical pin assignment and electrical characteristics with all members of the H8SX/1651 Group in the 100-pin LQFP package, including R5F61651C and DS61651N50FPV-10. This allows direct substitution in existing designs without PCB modification, provided voltage, temperature, and Flash size requirements align with the DS61651N50FPV specifications.
DS61651N50FPV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 120-LQFP
- Series:
- H8® H8SX/1600
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- H8SX
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- SCI, SmartCard
- Peripherals:
- DMA, PWM, WDT
- Number of I/O:
- 82
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 40K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DS61651N50FPV FAQ
1.How can I place an order for DS61651N50FPV through Aetrix?
Please submit a Request for Quotation (RFQ) for DS61651N50FPV 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 DS61651N50FPV reliable?
The price and inventory of DS61651N50FPV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS61651N50FPV is usually 5 days.
3.What payment methods are accepted for DS61651N50FPV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS61651N50FPV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS61651N50FPV?
DS61651N50FPV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS61651N50FPV 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 DS61651N50FPV?
For technical support, including DS61651N50FPV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS61651N50FPV requirements.
6.How does Aetrix verify that DS61651N50FPV is sourced from the original manufacturer or authorized distributors?
All DS61651N50FPV 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 DS61651N50FPV meets industry standards.
7.What is the process for return or replacement of DS61651N50FPV?
All DS61651N50FPV units undergo pre-shipment inspection (PSI). If there is an issue with DS61651N50FPV, 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 DS61651N50FPV part is unused and in its original packaging.
Return procedure for DS61651N50FPV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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