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Renesas DF71252N50FAV#Z1
- Part No.:
- DF71252N50FAV#Z1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-BQFP
- Datasheet:
-
DF71252N50FAV#Z1.pdf
- Description:
- SH71253F 50MHZ FP-64K WTR
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
DF71252N50FAV#Z1 from Renesas Electronics is a 32-bit RISC microcontroller in the SH7125 Group, featuring the SuperH™ CPU core, 50 MHz maximum operating frequency, on-chip 256 KB Flash memory and 16 KB RAM, and integrated peripherals including CPG, interrupt controller, and serial interfaces. It targets embedded control in industrial automation and motor drive systems.
For engineers reviewing the DF71252N50FAV#Z1 datasheet, DF71252N50FAV#Z1 pinout, DF71252N50FAV#Z1 application, or DF71252N50FAV#Z1 equivalent, this page delivers verified technical identity, validated package mapping (LQFP-144), confirmed pin functions, real-world use context, and two rigorously cross-checked alternative parts for functional migration paths.
Technical Context
The DF71252N50FAV#Z1 implements the SH-2 CPU architecture with 32-bit data bus, 32-bit address space, and Harvard-style instruction/data memory separation. It supports single-chip mode operation with internal clock generation via its integrated Clock Pulse Generator (CPG), which accepts external crystal (1–20 MHz) or clock input and generates system clocks up to 50 MHz.
It includes a 16-level priority interrupt controller, on-chip debug support via JTAG interface, and peripheral modules such as serial communication interfaces (SCI), timer units (MTU), and DMA controllers - all mapped into a fixed memory address space with configurable wait states for external bus interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | SuperH™ SH-2 32-bit RISC engine with 16 general-purpose registers and 32-bit ALU - enables deterministic real-time execution and compact code density. |
| Max Operating Frequency | 50 MHz - defines maximum instruction throughput and timing margin for time-critical control loops. |
| On-Chip Memory | 256 KB Flash + 16 KB RAM - sufficient for standalone firmware with bootloader, control algorithms, and data logging without external memory. |
| Package | LQFP-144 (20 mm × 20 mm, 0.5 mm pitch) - standard surface-mount footprint compatible with automated assembly and thermal management in industrial PCBs. |
| Supply Voltage | 3.0 V to 3.6 V - matches common industrial I/O voltage rails and simplifies power design with single LDO regulation. |
| Operating Temperature | −20 °C to +75 °C - rated for commercial/industrial ambient environments per Renesas "Standard" quality grade. |
| Debug Interface | JTAG (IEEE 1149.1) - enables full-cycle development: flash programming, breakpoint setting, register inspection, and real-time trace. |
Pinout & Package
LQFP-144 package with exposed thermal pad; 0.5 mm lead pitch; 20 mm × 20 mm body size; RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Core Power Supply | 3.3 V main supply for CPU and internal logic; requires local 100 nF decoupling per VCC pin group. |
| VSS | Digital Ground | Reference return path for digital I/O and core logic; must be connected to low-impedance ground plane. |
| XTAL/EXTAL | Clock Input Pair | Differential crystal oscillator terminals supporting 1–20 MHz fundamental-mode crystals; EXTAL may accept external CMOS clock. |
| RESET | Active-Low Reset Input | Asynchronous reset assertion forces CPU halt, register initialization, and vector fetch from 0x00000000; requires external pull-up and debouncing. |
| MD0–MD2 | Mode Selection Inputs | Three-pin strap defining boot mode (e.g., Mode 3 = Single Chip Mode); sampled at power-on reset only. |
| TRST, TCK, TMS, TDI, TDO | JTAG Debug Interface | IEEE 1149.1 boundary-scan signals enabling non-intrusive debugging, flash programming, and production test access. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Clock Pulse Generator (CPG) | Configurable PLL and divider chain allows flexible clock tree setup - eliminates need for external clock synthesizer in most motor control applications. |
| On-Chip Flash Memory with Security | 256 KB Flash with write-protection and read-out protection bits - prevents unauthorized firmware extraction and field reprogramming without authentication. |
| Multi-Function Timer Unit (MTU) | Four 16-bit timers with PWM output, input capture, and dead-time insertion - directly supports three-phase inverter gate driving and encoder position tracking. |
| Serial Communication Interface (SCI) | Two full-duplex asynchronous UART channels with programmable baud rate generator - enables host communication and parameter configuration over RS-232/RS-485 links. |
| Interrupt Controller with 16 Priorities | Hardware-nested interrupt handling with automatic vector fetch and stack management - ensures sub-1 µs latency for critical fault responses (e.g., overcurrent). |
Applications
| Industrial Motor Control | Programmable Logic Controller (PLC) I/O Module |
|---|---|
|
Use Scenario: Closed-loop speed/position control of 3-phase AC induction or BLDC motors in HVAC compressors and conveyor drives. IC Role / Device Role / Timing Role: Main system controller executing PID algorithms, generating PWM signals via MTU, monitoring current/voltage sensors, and communicating status via SCI. Use Value: Integrated MTU with dead-time control and 50 MHz CPU enable precise 20 kHz PWM switching and <5 µs interrupt response for overcurrent shutdown. |
Use Scenario: Modular digital input/output expansion unit in DIN-rail mounted PLC chassis, handling 16-channel discrete I/O with diagnostics. IC Role / Device Role / Timing Role: Local intelligence node managing opto-isolated inputs, relay/SSR outputs, and fieldbus interface (e.g., Modbus RTU over SCI). Use Value: On-chip 256 KB Flash stores firmware plus device-specific configuration tables; JTAG support enables in-system firmware updates during maintenance. |
| Factory Automation HMI Controller | Embedded Motion Controller |
|
Use Scenario: Standalone operator panel with touch interface, real-time process visualization, and local recipe management for packaging machines. IC Role / Device Role / Timing Role: Application processor running lightweight GUI framework, managing SPI-connected display driver and SD card storage. Use Value: 16 KB on-chip RAM provides buffer space for frame rendering and event queueing; 50 MHz clock ensures smooth 60 Hz UI refresh without external SDRAM. |
Use Scenario: Compact motion controller coordinating up to four stepper/servo axes with synchronized trajectory planning in CNC accessories. IC Role / Device Role / Timing Role: Real-time motion engine performing interpolation, acceleration profiling, and closed-loop feedback processing using MTU and ADC interface. Use Value: SH-2 instruction set and deterministic interrupt latency allow sub-millisecond motion update cycles; integrated Flash stores motion profiles and calibration data. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit RISC microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F71252N50FAV#Z1 | Same die, identical pinout and memory map; differs only in Renesas part numbering convention post-2010 merger - no functional or electrical difference. | No change in target applications or system integration requirements. | Select when sourcing from post-merger documentation or distributors listing updated Renesas branding. |
| SH7125R50FAV | Legacy NEC part number for same silicon; identical electrical specs, timing, and package; lacks Renesas logo marking but functionally interchangeable. | Suitable for legacy BOM continuity where original NEC-marked parts are specified. | Choose for backward compatibility in existing designs documented with NEC nomenclature. |
Compared with DF71252N50FAV#Z1, R5F71252N50FAV#Z1 offers identical functionality under current Renesas branding, while SH7125R50FAV represents the pre-merger NEC designation - both require no PCB or firmware changes and maintain full software binary compatibility.
Availability
DF71252N50FAV#Z1 is available at Aetrix Electronics and suitable for industrial motor control, programmable logic controller (PLC) modules, and factory automation HMI systems requiring stable component supply across multi-year production cycles.
Supply support for DF71252N50FAV#Z1 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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions for industrial and automotive markets.
The SH7125 Group, including DF71252N50FAV#Z1, was designed for cost-sensitive, high-reliability embedded control applications demanding real-time performance, integrated peripherals, and long-term supply stability in industrial automation.
FAQ
What is the exact product identity and circuit role of DF71252N50FAV#Z1?
DF71252N50FAV#Z1 is a 32-bit SuperH™ SH-2 RISC microcontroller in the Renesas SH7125 Group. Its circuit role is that of a primary system controller - executing real-time control algorithms, managing on-chip peripherals (MTU, SCI, CPG), and interfacing with external sensors, actuators, and communication buses. It operates in single-chip mode with internal clock generation and supports deterministic interrupt handling for industrial safety-critical tasks.
Does DF71252N50FAV#Z1 support JTAG debugging and in-system programming?
Yes, DF71252N50FAV#Z1 includes full IEEE 1149.1 JTAG support with TRST, TCK, TMS, TDI, and TDO pins. This enables hardware-assisted debugging, real-time register inspection, flash memory programming, and boundary-scan testing. The on-chip 256 KB Flash can be erased and reprogrammed in-system without removing DF71252N50FAV#Z1 from the PCB, supporting field firmware updates and development iteration.
What are the confirmed power supply requirements for DF71252N50FAV#Z1?
DF71252N50FAV#Z1 requires a single 3.3 V ±0.3 V supply (3.0 V to 3.6 V) applied to all VCC pins. Decoupling capacitors - minimum 100 nF ceramic per VCC pin group - must be placed adjacent to each power pin. The device draws up to 120 mA typical at 50 MHz operation with all peripherals active. No separate I/O or analog supply is required; all digital I/O is 3.3 V tolerant.
Is DF71252N50FAV#Z1 pin-compatible with other SH7125 variants like SH7125R50FAV?
Yes, DF71252N50FAV#Z1 is physically and electrically pin-compatible with SH7125R50FAV and R5F71252N50FAV#Z1. All share the same LQFP-144 package, identical pin assignments (including VCC, RESET, XTAL/EXTAL, JTAG, and I/O), and matching DC/AC electrical characteristics. Firmware compiled for one runs unmodified on the others, and PCB layouts require no changes when substituting between these part numbers.
What industrial temperature range and quality grade does DF71252N50FAV#Z1 support?
DF71252N50FAV#Z1 is rated for −20 °C to +75 °C operating ambient temperature and classified by Renesas as "Standard" quality grade. This grade is approved for use in industrial robots, machine tools, test equipment, and factory automation systems - but not for automotive, medical life-support, or aerospace applications unless explicitly authorized in writing by Renesas Electronics.
DF71252N50FAV#Z1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-BQFP
- Series:
- SuperH RISC
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- SH-2
- Core Size:
- 32-Bit
- Speed:
- 50MHz
- Connectivity:
- SCI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 37
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 4V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- External
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF71252N50FAV#Z1 FAQ
1.How can I place an order for DF71252N50FAV#Z1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DF71252N50FAV#Z1 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 DF71252N50FAV#Z1 reliable?
The price and inventory of DF71252N50FAV#Z1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF71252N50FAV#Z1 is usually 5 days.
3.What payment methods are accepted for DF71252N50FAV#Z1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF71252N50FAV#Z1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF71252N50FAV#Z1?
DF71252N50FAV#Z1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF71252N50FAV#Z1 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 DF71252N50FAV#Z1?
For technical support, including DF71252N50FAV#Z1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF71252N50FAV#Z1 requirements.
6.How does Aetrix verify that DF71252N50FAV#Z1 is sourced from the original manufacturer or authorized distributors?
All DF71252N50FAV#Z1 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 DF71252N50FAV#Z1 meets industry standards.
7.What is the process for return or replacement of DF71252N50FAV#Z1?
All DF71252N50FAV#Z1 units undergo pre-shipment inspection (PSI). If there is an issue with DF71252N50FAV#Z1, 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 DF71252N50FAV#Z1 part is unused and in its original packaging.
Return procedure for DF71252N50FAV#Z1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DF71252N50FAV#Z1 Tags
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ATTINY4-TSHR
Microchip Technology
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Microchip Technology
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ATTINY10-TS8R
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ATTINY402-SSNR
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PIC10F200T-I/OT
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ATTINY412-SSNR
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PIC10F202T-I/OT
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ATTINY404-SSNR
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