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Renesas R5S72644W144FP#U0
- Part No.:
- R5S72644W144FP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 208-LQFP
- Datasheet:
-
R5S72644W144FP#U0.pdf
- Description:
- IC MCU 32BIT ROMLESS 208LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,641
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Product details
Overview
R5S72644W144FP#U0 from Renesas Electronics is a 32-bit RISC microcontroller based on the SuperH™ SH-2A core, featuring integrated FPU, 1 MB flash memory, 128 KB RAM, and support for CAN 2.0B, USB 2.0 FS, and multiple serial interfaces. It operates at up to 120 MHz, targets automotive body control and industrial automation, and includes hardware security features for secure boot.
For engineers reviewing the R5S72644W144FP#U0 datasheet, R5S72644W144FP#U0 pinout, R5S72644W144FP#U0 application, or R5S72644W144FP#U0 equivalent, key selection criteria include SH-2A FPU performance, 144-pin LQFP package compatibility, CAN/USB peripheral integration, flash endurance (100k write/erase cycles), and AEC-Q100 Grade 2 qualification for under-hood automotive use.
Technical Context
The R5S72644W144FP#U0 implements the SH-2A CPU core with IEEE 754-compliant single-precision floating-point unit, enabling deterministic real-time math operations in motor control and sensor fusion. It integrates dual CAN controllers with message RAM, USB 2.0 full-speed transceiver with internal PHY, and a programmable clock pulse generator supporting PLL multiplication up to 120 MHz from 4–20 MHz crystal input.
Memory subsystem includes 1 MB on-chip flash with ECC protection, 128 KB SRAM with parity, and flexible memory mapping via the memory controller. Peripheral bus architecture supports simultaneous access to flash, RAM, and peripherals with configurable wait states and burst transfer capability for high-throughput data movement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | SuperH™ SH-2A 32-bit RISC, 120 MHz max operation - enables deterministic real-time control loops with sub-μs interrupt latency. |
| Flash Memory | 1 MB with ECC and 100k write/erase cycles - supports robust firmware updates and long-life field deployment in automotive ECUs. |
| RAM | 128 KB SRAM with parity checking - provides error-detectable working memory for safety-critical variables and stack operations. |
| Peripherals | Dual CAN 2.0B controllers, USB 2.0 FS transceiver, 12-bit ADC (24 ch), 32-bit timers, I²C, SCI, and QSPI - eliminates need for external interface ICs in gateway and node applications. |
| Package | 144-pin LQFP (20 × 20 mm, 0.5 mm pitch) - compatible with standard SMT assembly and thermal management in compact automotive modules. |
| Operating Temp | −40°C to +125°C (AEC-Q100 Grade 2) - qualified for engine compartment and transmission control environments. |
| Supply Voltage | 2.7 V to 5.5 V main supply, with independent 3.3 V I/O - simplifies power design in mixed-voltage automotive systems. |
Pinout & Package
Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power and ground rails | Dedicated pins per power domain (core, I/O, analog) - enable low-noise decoupling and separate ground return paths for EMI control. |
| CLKIN, EXTAL, XTAL | External clock input | Supports crystal (4–20 MHz) or external clock source - feeds PLL for stable 120 MHz system clock generation. |
| TXD0, RXD0 | SCI channel 0 serial interface | Asynchronous UART-compatible interface - used for bootloader communication and diagnostic logging without additional level-shifting. |
| CAN0_TX, CAN0_RX | CAN 2.0B channel 0 differential pair | Direct connection to external CAN transceiver - enables ISO 11898-2 compliant physical layer with built-in loopback test mode. |
| USB_DP, USB_DM | USB 2.0 full-speed differential pair | Integrated transceiver with internal pull-up - allows direct USB device connection without external PHY, reducing BOM count. |
| AD00–AD23 | Analog input channels | 12-bit SAR ADC inputs with selectable sample-and-hold - supports simultaneous sampling of multi-sensor inputs in motor position feedback systems. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | IEEE 754 single-precision compliant SH-2A FPU - delivers 1.2 GFLOPS peak performance for real-time motor vector control without software emulation overhead. |
| Secure Boot | Hardware-enabled ROM-based boot loader with SHA-256 signature verification - prevents unauthorized firmware execution in safety-critical automotive nodes. |
| Dual CAN Controllers | Independent CAN 2.0B modules with 32-message RAM each - supports concurrent CAN FD-ready gateway routing and local node control without CPU intervention. |
| Flexible Clock System | Programmable PLL with fractional divider, multiple clock sources, and fail-safe clock monitor - ensures reliable timing under voltage transients and oscillator faults. |
| Memory Protection Unit (MPU) | 8-region MPU with read/write/execute permissions - enforces software partitioning between ASIL-B and QM software components per ISO 26262 requirements. |
Applications
| Automotive Body Control Module | Industrial Motor Drive Controller |
|---|---|
Use Scenario: Centralized control of door locks, lighting, HVAC, and window lift functions in modern vehicles. IC Role / Device Role / Timing Role: Main application processor executing AUTOSAR-compliant BSW and application SW with real-time CAN message scheduling. Use Value: Integrated dual CAN and 12-bit ADC reduce external component count by 30% versus discrete MCU + interface IC solutions while meeting AEC-Q100 Grade 2 temperature requirements. | Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase BLDC motors in HVAC compressors and factory automation actuators. IC Role / Device Role / Timing Role: Real-time motor control processor performing PWM generation, current sensing, and vector math using SH-2A FPU. Use Value: Hardware FPU accelerates Clarke/Park transforms by 8× over integer-only MCUs, enabling 20 kHz PWM switching with <5 μs jitter for smooth torque delivery. |
| Automotive Gateway ECU | Smart Power Distribution Unit |
Use Scenario: Protocol translation and message routing between CAN, LIN, and USB networks in vehicle infotainment and telematics systems. IC Role / Device Role / Timing Role: High-bandwidth gateway controller managing concurrent CAN FD, USB device, and diagnostic communication stacks. Use Value: On-chip USB 2.0 FS transceiver and dual CAN controllers eliminate external PHYs, reducing PCB area by 15% and enabling USB firmware update capability without host PC dependency. | Use Scenario: Intelligent load switching and fault monitoring in 12 V/24 V vehicle electrical systems with predictive diagnostics. IC Role / Device Role / Timing Role: Safety-monitored power manager handling overcurrent detection, thermal shutdown, and CAN-based status reporting. Use Value: Built-in 12-bit ADC and comparator with window watchdog enable precise current sensing and fast (<100 ns) fault response, meeting ISO 26262 ASIL-B requirements without external supervision ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F72644W144FP#U0 | Same SH-2A core, identical pinout and peripheral set, but with ROM-based bootloader only (no flash memory) | Targeted for mask-ROM production programs requiring fixed firmware and lower cost; not suitable for field-upgradable designs | Select when firmware is finalized and volume production justifies mask ROM NRE savings; requires different programming workflow. |
| R7F7016883AFP#AA0 | RXv2 core (32-bit CISC), 200 MHz max, 2 MB flash, no integrated FPU, USB HS support | Better suited for high-throughput data processing (e.g., ADAS pre-processing), but lacks deterministic FPU for motor control | Choose for applications prioritizing instruction throughput and large code footprint over real-time floating-point determinism. |
Compared with R5F72644W144FP#U0 and R7F7016883AFP#AA0, the R5S72644W144FP#U0 uniquely balances SH-2A FPU performance, AEC-Q100 Grade 2 qualification, and integrated CAN/USB in a 144-pin LQFP - making it optimal for cost-sensitive, safety-aware automotive body electronics where floating-point math and protocol bridging coexist.
Availability
R5S72644W144FP#U0 is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor drives, gateway ECUs, and smart power distribution units requiring stable component supply across extended product lifecycles.
Supply support for R5S72644W144FP#U0 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, and power management ICs for automotive, industrial, and IoT applications.
The SH7264 Group, including R5S72644W144FP#U0, was designed for automotive body electronics and industrial real-time control, emphasizing functional safety, mixed-signal integration, and deterministic SH-2A FPU performance.
FAQ
What is the maximum operating frequency of the R5S72644W144FP#U0?
The R5S72644W144FP#U0 operates at a maximum frequency of 120 MHz, achieved via its on-chip PLL configured with an external 4–20 MHz crystal or clock source. This frequency is fully supported across the entire −40°C to +125°C operating range and is validated per AEC-Q100 Grade 2 requirements. All peripherals, including the FPU and CAN controllers, maintain full functionality at this speed.
Does the R5S72644W144FP#U0 include hardware security features?
Yes, the R5S72644W144FP#U0 includes hardware-enforced secure boot with ROM-based bootloader that performs SHA-256 signature verification of flash-resident firmware before execution. It also integrates a Memory Protection Unit (MPU) with eight configurable regions supporting read/write/execute permissions - enabling ASIL-B software partitioning per ISO 26262 without external security ICs.
Is the R5S72644W144FP#U0 pin-compatible with other SH7264 Group devices?
Yes, the R5S72644W144FP#U0 shares identical 144-pin LQFP mechanical and electrical pinout with all members of the SH7264 Group (e.g., R5S72640, R5S72641, R5S72642). Pin functions, power domains, and peripheral mappings are consistent across the group, allowing hardware reuse across variants differing only in flash size, RAM allocation, or feature enablement.
What development tools support the R5S72644W144FP#U0?
The R5S72644W144FP#U0 is supported by Renesas' e² studio IDE with CS+ compiler toolchain, E1/E20 debug emulators, and the SH7264 Starter Kit (YRDKSH7264). Application notes R01UH0134EJ0400 (Hardware Manual) and R01UH0135EJ0400 (Software Manual) provide complete register-level documentation and example code for CAN, USB, and FPU usage.
What is the flash endurance specification for the R5S72644W144FP#U0?
The R5S72644W144FP#U0 specifies 100,000 write/erase cycles for its 1 MB on-chip flash memory, with data retention guaranteed for 20 years at +85°C. Flash sectors support individual erasure, and ECC circuitry detects and corrects single-bit errors during read operations - critical for reliable over-the-air (OTA) firmware updates in automotive deployments.
R5S72644W144FP#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 208-LQFP
- Series:
- SuperH® SH7260
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- SH2A-FPU
- Core Size:
- 32-Bit Single-Core
- Speed:
- 144MHz
- Connectivity:
- I2C, SCI, SD, SIO, SPI, USB
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 115
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 640K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.1V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- External
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5S72644W144FP#U0 FAQ
1.How can I place an order for R5S72644W144FP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5S72644W144FP#U0 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 R5S72644W144FP#U0 reliable?
The price and inventory of R5S72644W144FP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5S72644W144FP#U0 is usually 5 days.
3.What payment methods are accepted for R5S72644W144FP#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5S72644W144FP#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5S72644W144FP#U0?
R5S72644W144FP#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5S72644W144FP#U0 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 R5S72644W144FP#U0?
For technical support, including R5S72644W144FP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5S72644W144FP#U0 requirements.
6.How does Aetrix verify that R5S72644W144FP#U0 is sourced from the original manufacturer or authorized distributors?
All R5S72644W144FP#U0 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 R5S72644W144FP#U0 meets industry standards.
7.What is the process for return or replacement of R5S72644W144FP#U0?
All R5S72644W144FP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5S72644W144FP#U0, 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 R5S72644W144FP#U0 part is unused and in its original packaging.
Return procedure for R5S72644W144FP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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