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Renesas R5F61644AD50FPV
- Part No.:
- R5F61644AD50FPV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R5F61644AD50FPV.pdf
- Description:
- 32BIT MCU H8SX/1648A ROM512K/RAM
- Quantity:
- Payment:
- Shipping:
Inventory:2,602
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Product details
Overview
R5F61644AD50FPV 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. It operates from a 3.0–3.6 V supply and targets industrial control and motor drive applications requiring deterministic real-time response.
For engineers reviewing the R5F61644AD50FPV datasheet, R5F61644AD50FPV pinout, R5F61644AD50FPV application, or R5F61644AD50FPV equivalent, key selection criteria include its 144-pin LQFP package, 50 MHz operation with internal PLL, Flash endurance (10,000 write/erase cycles), and support for single-cycle instruction execution in Advanced Mode.
Technical Context
The R5F61644AD50FPV implements the H8SX CPU core with three operating modes-Normal, Middle, and Advanced-enabling configurable performance vs. power trade-offs. Its bus controller supports external memory expansion up to 16 MB with programmable wait-state control and burst transfer capability.
Peripheral integration includes a 16-bit Timer Pulse Unit (TPU) with 16 channels, four Serial Communications Interfaces (SCI) supporting asynchronous and clock-synchronous modes, and a 10-bit ADC with 16 input channels and hardware-triggered conversion sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8SX 32-bit CISC architecture with 3 operating modes and single-cycle instruction execution in Advanced Mode |
| Max Clock Frequency | 50 MHz - enables real-time control loop execution at ≤20 ns per instruction cycle |
| On-chip Memory | 512 KB Flash (10,000 erase/write cycles) + 32 KB RAM - supports field firmware updates without external storage |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard industrial 3.3 V rail; no level-shifting required for common peripherals |
| ADC Resolution & Channels | 10-bit SAR ADC with 16 input channels and hardware-triggered scan mode - suitable for multi-sensor analog monitoring |
| Package | 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch) - provides full peripheral access and thermal performance for convection-cooled industrial PCBs |
| Operating Temperature | −40 °C to +85 °C - qualified for extended industrial ambient conditions without derating |
Pinout & Package
Package: 144-pin LQFP (FP-144A type), 20 mm × 20 mm body, 0.5 mm lead pitch, exposed thermal pad (EP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dedicated pairs per power domain (CPU, peripheral, ADC) minimize noise coupling and support independent decoupling |
| CLK, EXTAL, XTAL | System clock inputs | Supports crystal (1–10 MHz), ceramic resonator, or external clock; internal PLL generates 50 MHz from 4 MHz input |
| RESET | Active-low reset input | Asynchronous, Schmitt-triggered; accepts 100 ns minimum pulse width; initiates hardware reset sequence including register initialization and vector fetch |
| PORTx (e.g., PORT0–PORT13) | General-purpose I/O with alternate functions | Configurable pull-up/pull-down, slew-rate control, and interrupt-on-change; many pins support peripheral multiplexing (TPU, SCI, I²C) |
| AD0–AD15 | Analog input channels | 16 dedicated ADC input pins mapped to internal 10-bit SAR converter; share physical pins with PORT7/PORT8 but not simultaneously active |
Key Features
| Feature | Design Value |
|---|---|
| Three CPU Operating Modes | Normal (16-bit addressing), Middle (24-bit), Advanced (32-bit + single-cycle execution) - enables scalable software architecture across product variants |
| Integrated Data Transfer Controller (DTC) | Hardware-accelerated memory-to-peripheral transfers without CPU intervention - reduces ISR latency and frees CPU for control computation |
| Dual Watchdog Timers | Independent WDT (system-level) and IWDT (windowed, for safety-critical tasks) - supports fail-safe system recovery and ASIL-B-aligned monitoring |
| Programmable Pulse Generator (PPG) | 6-channel, 16-bit resolution PWM generator with dead-time insertion and synchronous update - directly drives 3-phase inverter gate drivers |
| On-chip Debug Support | FULL-EMUL interface with real-time trace and breakpoint logic - enables non-intrusive debugging of time-critical motor control loops |
Applications
| Industrial PLC I/O Module | Brushless DC Motor Drive |
|---|---|
|
Use Scenario: Modular I/O base unit handling digital input/output, analog sensing, and fieldbus communication in factory automation cabinets. IC Role / Device Role / Timing Role: Central controller managing cyclic I/O scanning, protocol stack execution (Modbus RTU/ASCII), and local safety interlocks. Use Value: 512 KB Flash stores dual-application firmware images; 16-channel ADC enables simultaneous temperature, current, and voltage monitoring per module slot. |
Use Scenario: Closed-loop commutation and torque regulation for HVAC blowers and industrial fans using sensorless FOC algorithms. IC Role / Device Role / Timing Role: Real-time motor control MCU executing FOC inner-loop (current PI) in <5 µs and outer-loop (speed/position) at 1 kHz. Use Value: PPG's synchronized 6-channel PWM with programmable dead time ensures safe inverter switching; TPU captures rotor position via hall sensors with <100 ns jitter. |
| Energy Metering Terminal | Building Automation Controller |
|
Use Scenario: DIN-rail mounted electricity meter aggregating consumption data from CT/PT inputs and communicating via RS-485 or M-Bus. IC Role / Device Role / Timing Role: Primary measurement processor performing RMS calculation, harmonic analysis, and tariff scheduling. Use Value: Hardware DTC offloads ADC data streaming to RAM; SCI0/SCI1 support dual serial interfaces for metrology IC and upstream gateway simultaneously. |
Use Scenario: Standalone HVAC controller managing chillers, AHUs, and VAV boxes via BACnet MS/TP and LonWorks protocols. IC Role / Device Role / Timing Role: Protocol-aware application processor running embedded BACnet stack and local PID control for zone temperature regulation. Use Value: 144-pin LQFP provides sufficient GPIO for discrete I/O expansion; 32 KB RAM accommodates BACnet object database and real-time scheduler state. |
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 |
|---|---|---|---|
| R5F61644AD60FPV | 60 MHz max CPU clock; identical Flash/RAM size and peripheral set; same 144-pin LQFP package | Higher computational throughput for complex filtering or multi-axis motion control; requires tighter timing closure on PCB layout | Select when deterministic sub-16.7 ns instruction latency is required for high-bandwidth control loops |
| R5F61644AD50FP | Same core and memory specs; 100-pin LQFP (14 mm × 14 mm); reduced GPIO count (80 vs. 112) and fewer peripheral instances (e.g., 2× SCI vs. 4×) | Suitable for cost-sensitive, space-constrained designs where full peripheral complement is unnecessary | Choose for compact consumer-grade appliances or secondary controllers where footprint and BOM cost outweigh feature density |
Compared with R5F61644AD50FPV, the R5F61644AD60FPV delivers 20% higher instruction throughput without architectural change, while the R5F61644AD50FP trades pin count and peripheral count for smaller board area and lower assembly cost-making each alternative optimal only within distinct design constraints.
Availability
R5F61644AD50FPV is available at Aetrix Electronics and suitable for industrial PLCs, motor drives, energy meters, and building automation controllers requiring stable component supply over extended production lifecycles.
Supply support for R5F61644AD50FPV 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/1644 Group, including R5F61644AD50FPV, was designed for deterministic real-time control in harsh industrial environments-emphasizing robust peripheral integration, long-term availability, and toolchain maturity for safety-aware firmware development.
FAQ
What is the maximum operating frequency of the R5F61644AD50FPV?
The R5F61644AD50FPV supports a maximum CPU clock frequency of 50 MHz, achieved via its internal PLL that multiplies an external 4–10 MHz crystal or clock source. This frequency is fully supported across the specified industrial temperature range (−40 °C to +85 °C) and 3.0–3.6 V supply, enabling deterministic execution of real-time control tasks with guaranteed timing margins. The R5F61644AD50FPV datasheet specifies setup/hold times and propagation delays validated at this speed.
Does the R5F61644AD50FPV include on-chip Flash memory, and what is its endurance rating?
Yes, the R5F61644AD50FPV integrates 512 KB of on-chip Flash memory rated for 10,000 write/erase cycles and data retention of 20 years at 85 °C. This Flash supports in-application programming (IAP) and sector protection, allowing field firmware updates without removing the R5F61644AD50FPV from the target system. The endurance specification is verified per JEDEC JESD22-A117 and applies under standard industrial operating conditions.
Which communication interfaces are available on the R5F61644AD50FPV?
The R5F61644AD50FPV provides four Serial Communications Interfaces (SCI) supporting asynchronous UART and clock-synchronous modes, one Inter-IC (I²C) bus interface, and a CAN controller (CAN v2.0B compliant). All SCIs support automatic baud-rate detection and LIN 2.1 frame formatting; the I²C interface includes multimaster capability and 10-bit addressing. These interfaces are accessible via dedicated pins in the 144-pin LQFP package of the R5F61644AD50FPV.
What debug capabilities does the R5F61644AD50FPV support?
The R5F61644AD50FPV features Renesas' FULL-EMUL on-chip debug interface, supporting real-time program execution control, hardware breakpoints, watchpoints, and trace buffer capture via a dedicated 14-pin debug connector. It enables non-intrusive observation of CPU registers, memory, and peripheral states during live operation-critical for validating timing-critical motor control algorithms implemented on the R5F61644AD50FPV.
Is the R5F61644AD50FPV qualified for industrial temperature operation?
Yes, the R5F61644AD50FPV is explicitly qualified for industrial temperature operation from −40 °C to +85 °C, with electrical characteristics-including timing parameters, ADC accuracy, and I/O drive strength-fully specified and tested across this range. Renesas classifies the R5F61644AD50FPV as a "Standard" quality grade device, intended for industrial equipment, factory automation, and commercial building systems per their quality grading policy.
R5F61644AD50FPV 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:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- A/D 24x10b SAR; D/A 2x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F61644AD50FPV FAQ
1.How can I place an order for R5F61644AD50FPV through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F61644AD50FPV 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 R5F61644AD50FPV reliable?
The price and inventory of R5F61644AD50FPV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F61644AD50FPV is usually 5 days.
3.What payment methods are accepted for R5F61644AD50FPV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F61644AD50FPV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F61644AD50FPV?
R5F61644AD50FPV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F61644AD50FPV 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 R5F61644AD50FPV?
For technical support, including R5F61644AD50FPV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F61644AD50FPV requirements.
6.How does Aetrix verify that R5F61644AD50FPV is sourced from the original manufacturer or authorized distributors?
All R5F61644AD50FPV 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 R5F61644AD50FPV meets industry standards.
7.What is the process for return or replacement of R5F61644AD50FPV?
All R5F61644AD50FPV units undergo pre-shipment inspection (PSI). If there is an issue with R5F61644AD50FPV, 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 R5F61644AD50FPV part is unused and in its original packaging.
Return procedure for R5F61644AD50FPV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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