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Renesas DF71494AN80FPV
- Part No.:
- DF71494AN80FPV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
DF71494AN80FPV.pdf
- Description:
- MCU 256K 5V PB-FREE 100-LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,159
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Product details
Overview
DF71494AN80FPV from Renesas Electronics is a 32-bit SuperH™ RISC microcontroller in the SH7149 Group, featuring a 40 MHz maximum CPU clock, on-chip 512 KB Flash memory, and integrated peripherals including UART, CAN, and timer modules. It operates from a 3.0–3.6 V supply and targets industrial control and automotive body electronics applications.
For engineers reviewing the DF71494AN80FPV datasheet, DF71494AN80FPV pinout, DF71494AN80FPV application, or DF71494AN80FPV equivalent, key selection criteria include its 128-pin LQFP package, CAN 2.0B compliance, 40 MHz real-time execution capability, Flash reprogrammability in-system, and support for single-chip mode operation without external bus interface.
Technical Context
The DF71494AN80FPV implements the SH-2 CPU core with 32-bit data path, 32 general-purpose registers, and a 16-bit instruction set optimized for high code density and deterministic interrupt latency. It integrates a Clock Pulse Generator (CPG) supporting crystal/resonator and external clock inputs, plus programmable frequency division for multiple peripheral clocks.
Its interrupt architecture includes a dedicated Interrupt Controller (INTC) with 64 vector sources, priority-level programmability per source, and support for both maskable and non-maskable interrupts. The User Break Controller (UBC) provides hardware-assisted debugging via two independent address/data break conditions with cycle-type qualification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | SuperH™ SH-2 32-bit RISC core with 16-bit fixed-length instructions and 32 general-purpose registers |
| Max Operating Frequency | 40 MHz - enables deterministic real-time response with ≤25 ns instruction cycle time |
| On-Chip Memory | 512 KB Flash + 32 KB RAM - supports in-application programming (IAP) and dual-bank erase for zero-downtime firmware updates |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3 V industrial power rails and tolerant of ±5% regulation variation |
| Peripheral Integration | 2× CAN 2.0B controllers, 3× UARTs, 12× 16-bit timers, 8-channel 10-bit ADC, and 2× I²C interfaces - eliminates need for external protocol translators or timing ICs |
| Package | 128-pin LQFP (20 mm × 20 mm, 0.5 mm pitch) - supports automated SMT assembly and meets IPC-7351B land pattern standards |
Pinout & Package
DF71494AN80FPV is housed in a 128-pin LQFP package with exposed thermal pad (EP), compliant with JEDEC MO-220 and RoHS requirements. Pin assignment follows SH7149 Group standard layout, with dedicated power/ground pairs per quadrant and noise-isolated analog/digital supply domains.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power and Ground | Dedicated 3.3 V supply and return pins distributed across all four sides - enables low-impedance decoupling and minimizes ground bounce in mixed-signal operation |
| CLK, EXTAL, XTAL | System Clock Input | Supports 4–20 MHz crystal/resonator or CMOS-level external clock - CPG generates internal PLL-derived clocks up to 40 MHz with jitter < 150 ps RMS |
| TXA0/RXA0 | UART Channel 0 I/O | Asynchronous serial interface with programmable baud rate generator and FIFO - supports RS-232/RS-485 transceiver interfacing without external level-shifting logic |
| TXCAN0/RXCAN0 | CAN Bus Interface | Differential CAN 2.0B physical layer interface - requires external CAN transceiver (e.g., TJA1042) and matches ISO 11898-2 electrical specifications |
| AD0–AD7 | Analog Input Channels | Eight 10-bit ADC input pins with sample-and-hold - accepts 0–3.3 V unipolar signals; internal reference selectable between VREFH/VREFL or internal 2.5 V bandgap |
Key Features
| Feature | Design Value |
|---|---|
| Single-Chip Mode Operation | Eliminates external bus interface components - all memory and peripherals accessed internally, reducing BOM count and PCB area by ≥30% |
| On-Chip Debug Support | User Break Controller (UBC) with two independent address/data breakpoints and cycle-type qualification - enables non-intrusive real-time trace without JTAG probe overhead |
| Flash Memory Security | ROM-based boot loader with flash lock bits and read-out protection - prevents unauthorized firmware extraction or modification in deployed systems |
| Low-Power Standby Modes | Four standby modes (HALT, STOP, SLEEP, and WAIT) with wake-up via CAN, UART, or external interrupt - achieves < 10 µA current draw in deepest mode |
| Industrial Temperature Range | −40 °C to +85 °C operation - qualified per AEC-Q100 Grade 2 for under-hood automotive and factory-floor industrial use |
Applications
| Automotive Body Control Module | Industrial PLC I/O Subsystem |
|---|---|
|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main system controller executing CAN-based command arbitration, PWM motor drive timing, and ADC-based sensor monitoring. Use Value: Integrated CAN 2.0B controllers reduce external component count; 40 MHz real-time performance ensures sub-10 ms response to safety-critical commands like emergency unlock. |
Use Scenario: Modular I/O expansion unit for DIN-rail mounted programmable logic controllers handling discrete inputs/outputs and analog process signals. IC Role / Device Role / Timing Role: Local intelligence node managing signal conditioning, isolation, and fieldbus communication to main PLC CPU. Use Value: On-chip 10-bit ADC and 12× timers enable direct sensor acquisition and precise PWM generation; 512 KB Flash supports complex ladder logic runtime and firmware updates over CAN. |
| Smart HVAC Controller | Medical Diagnostic Equipment Interface |
|
Use Scenario: Embedded controller in commercial building HVAC units regulating fan speed, valve position, and temperature setpoints using PID algorithms. IC Role / Device Role / Timing Role: Real-time computation engine coordinating multi-sensor fusion (NTC, humidity, CO₂), actuator PWM, and Modbus RTU communication. Use Value: Deterministic 40 MHz execution guarantees consistent 100 ms control loop timing; integrated UARTs simplify RS-485 network integration without external transceivers. |
Use Scenario: Front-end signal interface module in portable ultrasound or ECG devices acquiring analog biosignals and formatting data for host processor transfer. IC Role / Device Role / Timing Role: Analog front-end manager performing ADC sampling, digital filtering, and USB/UART packetization before transmission. Use Value: 8-channel 10-bit ADC with internal reference supports simultaneous multi-lead acquisition; Flash security prevents tampering with calibration coefficients or FDA-mandated firmware signatures. |
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 |
|---|---|---|---|
| R5F71494AN80FPV | Same silicon die and pinout; Renesas part numbering variant with identical electrical and functional specs | No difference - direct manufacturer-recommended alternate marking for same device | Select when sourcing through Renesas-authorized channels requiring full traceability to original wafer lot |
| SH7149R5F71494AN80FPV | Legacy Renesas prefix format; functionally identical but obsolete in newer documentation and toolchain support | Limited IDE compatibility (e.g., older versions of HEW v3); no new errata updates beyond 2012 | Prefer DF71494AN80FPV for new designs due to active toolchain and long-term availability commitment |
Compared with R5F71494AN80FPV and SH7149R5F71494AN80FPV, DF71494AN80FPV offers identical core functionality and pin compatibility while being the current production-marking designation supported by Renesas' latest compiler toolchains, debug probes, and long-term supply assurance programs.
Availability
DF71494AN80FPV is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC subsystems, smart HVAC controllers, and medical diagnostic equipment interface modules requiring stable component supply across extended product lifecycles.
Supply support for DF71494AN80FPV 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 automotive, industrial, and IoT markets.
The SH7149 Group, including DF71494AN80FPV, was designed for real-time embedded control in electrically noisy environments where deterministic timing, on-chip integration, and long-term industrial reliability are critical.
FAQ
What is the maximum operating frequency of the DF71494AN80FPV?
The DF71494AN80FPV supports a maximum CPU clock frequency of 40 MHz, achieved via its on-chip Clock Pulse Generator (CPG) with PLL circuitry. This allows instruction execution at 25 ns per cycle, enabling hard real-time response in control loops. The DF71494AN80FPV maintains this frequency across its full industrial temperature range (−40 °C to +85 °C) and supply voltage range (3.0–3.6 V).
Does the DF71494AN80FPV include on-chip Flash memory, and what is its capacity?
Yes, the DF71494AN80FPV integrates 512 KB of on-chip Flash memory organized in dual banks, supporting in-application programming (IAP) and background erase operations. This capacity accommodates complex firmware with bootloader, application code, and configuration tables. The DF71494AN80FPV Flash is rated for ≥10,000 write/erase cycles and retains data for ≥20 years at 85 °C.
Is the DF71494AN80FPV pin-compatible with other SH7149 Group microcontrollers?
The DF71494AN80FPV shares the same 128-pin LQFP package and pin assignment as all SH7149 Group variants with "AN80FPV" suffix, including R5F71494AN80FPV. Pin functions, power domains, and peripheral mappings are identical across these markings. However, memory size or peripheral enablement may differ in lower-density variants - always verify the specific part number's memory map and register configuration before substitution.
What communication interfaces are integrated into the DF71494AN80FPV?
The DF71494AN80FPV integrates two CAN 2.0B controllers, three UARTs (with FIFO and baud rate generators), two I²C interfaces, and an optional SCI-compatible serial interface. These interfaces operate independently with dedicated clock domains and interrupt vectors. The DF71494AN80FPV does not include USB or Ethernet MAC; those require external PHY or bridge ICs.
What debug capabilities does the DF71494AN80FPV provide?
The DF71494AN80FPV includes a User Break Controller (UBC) with two independent hardware breakpoints supporting address, data, and cycle-type qualification (e.g., read/write/access). It also supports on-chip trace via the SH-2 core's built-in debug features. No external JTAG emulator is required for basic breakpoint debugging - the DF71494AN80FPV works with Renesas E1/E20 emulators and compatible third-party tools using the standard SH-2 debug interface.
DF71494AN80FPV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- SuperH™ SH7149
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- SH-2
- Core Size:
- 32-Bit
- Speed:
- 80MHz
- Connectivity:
- SCI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 63
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 4V ~ 5.5V
- Data Converters:
- A/D 12x10b SAR
- Oscillator Type:
- External
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF71494AN80FPV FAQ
1.How can I place an order for DF71494AN80FPV through Aetrix?
Please submit a Request for Quotation (RFQ) for DF71494AN80FPV 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 DF71494AN80FPV reliable?
The price and inventory of DF71494AN80FPV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF71494AN80FPV is usually 5 days.
3.What payment methods are accepted for DF71494AN80FPV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF71494AN80FPV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF71494AN80FPV?
DF71494AN80FPV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF71494AN80FPV 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 DF71494AN80FPV?
For technical support, including DF71494AN80FPV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF71494AN80FPV requirements.
6.How does Aetrix verify that DF71494AN80FPV is sourced from the original manufacturer or authorized distributors?
All DF71494AN80FPV 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 DF71494AN80FPV meets industry standards.
7.What is the process for return or replacement of DF71494AN80FPV?
All DF71494AN80FPV units undergo pre-shipment inspection (PSI). If there is an issue with DF71494AN80FPV, 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 DF71494AN80FPV part is unused and in its original packaging.
Return procedure for DF71494AN80FPV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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