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Renesas R5F61644N50FPV
- Part No.:
- R5F61644N50FPV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R5F61644N50FPV.pdf
- Description:
- MCU 3V 512K PB-FREE 144-LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,561
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Product details
Overview
R5F61644N50FPV from Renesas Electronics is a 32-bit CISC microcontroller in the H8SX/1644 group, featuring a 50 MHz maximum CPU clock, 512 KB on-chip Flash memory, and integrated peripherals including TPU, SCI, I²C, and WDT - deployed in industrial motor control and factory automation systems requiring deterministic real-time response.
For engineers reviewing the R5F61644N50FPV datasheet, R5F61644N50FPV pinout, R5F61644N50FPV application, or R5F61644N50FPV equivalent, key selection criteria include its 144-pin LQFP package, 3.3 V single-supply operation, 16-channel 16-bit timer pulse unit, hardware multiply-accumulate capability, and support for H8SX family-compatible development tools and firmware libraries.
Technical Context
The R5F61644N50FPV implements the H8SX CPU core with three operating modes (Normal, Middle, Advanced), enabling scalable performance and power management. It integrates a Clock Pulse Generator (CPG) supporting PLL-based clock synthesis, bus controller (BSC) with wait-state control, and interrupt controller (INTC) with 128 vector entries.
Peripheral integration includes four 16-bit Timer Pulse Units (TPU) with PWM, input capture, and phase counting; two Serial Communications Interfaces (SCI) with UART/CLK-synchronous modes; one Inter-IC Bus (I²C) interface; and a 12-bit A/D converter with 16 channels and programmable sample-and-hold timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8SX 32-bit CISC architecture with 5-stage pipeline and 3 operating modes |
| Max Operating Frequency | 50 MHz - enables sub-20 ns instruction cycle time for real-time loop execution |
| On-chip Memory | 512 KB Flash (program), 32 KB RAM (data) - supports in-application programming and data logging |
| Supply Voltage | 3.3 V ±0.3 V - compatible with standard industrial logic voltage rails and low-noise LDOs |
| A/D Converter | 12-bit resolution, 16-channel, 1.25 µs conversion time - suitable for analog sensor interfacing and closed-loop feedback |
| Timer Resources | Four 16-bit TPUs (64 channels total), one 8-bit TMR, one watchdog timer - provides flexible PWM generation and event timing |
| I/O Pins | 112 general-purpose CMOS I/O pins with configurable pull-up/down and slew-rate control - supports direct connection to sensors, actuators, and displays |
Pinout & Package
Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, standard JEDEC MO-220 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Core & I/O Power Supply | 3.3 V main supply for CPU, peripherals, and GPIO - requires local decoupling per Renesas layout guidelines |
| VSS | Digital Ground | Common reference for all digital circuits - must be connected to low-impedance ground plane |
| RESET | Active-low Reset Input | Asynchronous reset assertion clears CPU registers and initializes peripheral modules to known states |
| CLKIN | External Clock Input | Accepts crystal (1–20 MHz) or external oscillator signal for CPG PLL input - determines system base frequency |
| PORTA0–PORTA15 | General-Purpose I/O Port | Bi-directional CMOS port with individually configurable direction, pull-up, and interrupt capability |
| TPU0A–TPU0H | Timer Pulse Unit Channel Outputs | Dedicated PWM output pins for motor gate drive or LED dimming with dead-time insertion support |
Key Features
| Feature | Design Value |
|---|---|
| Hardware MAC Unit | 32-bit × 32-bit multiply-accumulate in single cycle - accelerates PID control and filtering algorithms |
| Programmable Wait States | 0–15 wait states configurable per memory region - enables reliable operation with slower external memory or Flash read cycles |
| Low-Power Modes | Four modes (HALT, STOP, WAIT, and SNOOZE) with selective peripheral clock gating - reduces active current to <1 mA |
| On-chip Debug Support | Fully compliant with E10A-USB emulator interface - enables real-time trace, breakpoint, and register inspection without code instrumentation |
| Flash Security Protection | Read-out protection and write protection per sector - prevents unauthorized firmware extraction or overwriting |
Applications
| Industrial Motor Drive | Factory Automation PLC |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in conveyor systems and CNC spindles. IC Role / Device Role / Timing Role: Real-time execution of FOC (Field-Oriented Control) algorithms with synchronized PWM generation and ADC sampling. Use Value: Precise 16-bit TPU timing and hardware MAC enable <5 µs current-loop update intervals and <1% torque ripple at full load. |
Use Scenario: Modular I/O processing and ladder logic execution in compact programmable logic controllers. IC Role / Device Role / Timing Role: Central controller managing discrete I/O expansion, serial fieldbus communication (RS-485/SCI), and cyclic task scheduling. Use Value: 112 GPIO pins and dual SCI interfaces allow native integration of up to 32 digital inputs/outputs and Modbus RTU master/slave operation. |
| Energy Metering Gateway | Building HVAC Controller |
Use Scenario: Aggregation and preprocessing of metering data from multiple smart meters via I²C and RS-485. IC Role / Device Role / Timing Role: Data concentrator with secure Flash storage, cryptographic acceleration support, and time-stamped event logging. Use Value: 512 KB Flash stores firmware, calibration tables, and 30+ days of interval energy data; hardware CRC engine ensures data integrity during transmission. |
Use Scenario: Zone-level temperature, humidity, and airflow regulation in commercial HVAC systems. IC Role / Device Role / Timing Role: Sensor fusion hub interfacing thermistors, capacitive humidity sensors, and stepper motor drivers via ADC and PWM outputs. Use Value: Integrated 12-bit ADC with 16 channels and programmable sampling eliminates external signal conditioning for multi-sensor inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit industrial microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F61644N40FPV | Same pinout and peripheral set, but rated for 40 MHz max CPU clock and lower Flash endurance (10K write/erase cycles vs. 100K) | Suitable for cost-sensitive applications with relaxed timing requirements (e.g., non-critical status monitoring) | Select when system timing budget allows >25% margin on worst-case instruction throughput and Flash rewrite frequency is low. |
| R5F61648N50FPV | Pin-compatible upgrade with 1 MB Flash, additional TPU channel, and enhanced DMA controller (DTC with scatter-gather) | Required for applications needing larger firmware images, extended data buffering, or high-bandwidth peripheral-to-memory transfers | Choose when future firmware scalability, real-time data streaming, or multi-axis motion control is planned. |
Compared with R5F61644N40FPV, the R5F61644N50FPV delivers higher deterministic throughput for time-critical loops; compared with R5F61648N50FPV, it offers identical real-time latency and peripheral timing but with reduced Flash capacity and no DTC enhancements - making it optimal for fixed-function embedded control where memory headroom is constrained.
Availability
R5F61644N50FPV is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, and building HVAC systems requiring stable component supply across multi-year production cycles.
Supply support for R5F61644N50FPV 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 R5F61644N50FPV belongs to the H8SX/1644 group - a family designed for deterministic real-time control in harsh industrial environments, emphasizing robust peripheral integration, long-lifecycle support, and toolchain compatibility across Renesas' legacy and modern ecosystems.
FAQ
What is the maximum operating temperature range for the R5F61644N50FPV?
The R5F61644N50FPV is specified for industrial temperature operation from −40 °C to +85 °C ambient, validated per Renesas' Standard quality grade qualification. This range covers typical factory floor, outdoor enclosure, and unconditioned control cabinet deployments where thermal management relies on passive heatsinking and board-level airflow.
Does the R5F61644N50FPV support in-system programming (ISP) via its serial interface?
Yes, the R5F61644N50FPV supports in-system programming through its SCI interface using Renesas' Flash Development Toolkit (FDT) and standard UART boot mode. The process requires no external programmer - only a 3.3 V UART connection and valid bootloader activation sequence, enabling field firmware updates without device removal.
How many independent PWM outputs does the R5F61644N50FPV provide?
The R5F61644N50FPV provides 64 independent PWM output channels via its four integrated 16-bit Timer Pulse Units (TPU). Each TPU supports complementary PWM pairs with programmable dead-time insertion, making the R5F61644N50FPV suitable for 3-phase inverter gate drive and multi-zone lighting control.
Is the R5F61644N50FPV pin-compatible with other H8SX/1644 variants like R5F61644A or R5F61644L?
No - the R5F61644N50FPV is not pin-compatible with R5F61644A or R5F61644L. These suffixes denote different speed grades, memory configurations, or package types (e.g., R5F61644L uses a 128-pin LQFP). Pin assignments and electrical characteristics differ across variants; PCB layout must match the exact part number's datasheet.
What debug interface does the R5F61644N50FPV use, and is it supported by current tools?
The R5F61644N50FPV uses the standard Renesas E10A-USB debug interface, fully supported by e² studio IDE, CS+ (formerly High-performance Embedded Workshop), and third-party tools like Lauterbach TRACE32. On-chip debug resources include real-time trace, hardware breakpoints, and memory watchpoints - all accessible without modifying application code.
R5F61644N50FPV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- H8® H8SX/1600
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- H8SX
- Core Size:
- 32-Bit
- Speed:
- 50MHz
- Connectivity:
- EBI/EMI, I2C, IrDA, SCI, Smart Card, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 97
- 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 24x10b SAR; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F61644N50FPV FAQ
1.How can I place an order for R5F61644N50FPV through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F61644N50FPV 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 R5F61644N50FPV reliable?
The price and inventory of R5F61644N50FPV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F61644N50FPV is usually 5 days.
3.What payment methods are accepted for R5F61644N50FPV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F61644N50FPV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F61644N50FPV?
R5F61644N50FPV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F61644N50FPV 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 R5F61644N50FPV?
For technical support, including R5F61644N50FPV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F61644N50FPV requirements.
6.How does Aetrix verify that R5F61644N50FPV is sourced from the original manufacturer or authorized distributors?
All R5F61644N50FPV 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 R5F61644N50FPV meets industry standards.
7.What is the process for return or replacement of R5F61644N50FPV?
All R5F61644N50FPV units undergo pre-shipment inspection (PSI). If there is an issue with R5F61644N50FPV, 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 R5F61644N50FPV part is unused and in its original packaging.
Return procedure for R5F61644N50FPV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F61644N50FPV Tags
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