Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Renesas DF71494AD80FPV

Name: DF71494AD80FPV
Brand: Renesas
SKU: DF71494AD80FPV
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: DF71494AD80FPV

Manufacturer:: Renesas

Category:: Microcontrollers

Package:: 100-LQFP

Datasheet:: DF71494AD80FPV.pdf

Description:: MCU 5V 256K I-TEMP PB-FREE 100-L

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,204

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

DF71494AD80FPV from Renesas Electronics is a 32-bit SuperH™ RISC microcontroller in the SH7149 Group, featuring a 40 MHz maximum CPU clock, 512 KB on-chip Flash memory, and integrated peripherals including CPG, INTC, UBC, and multiple serial interfaces. It operates at 3.3 V supply and targets industrial control and embedded instrumentation systems requiring deterministic real-time response.

For engineers reviewing the DF71494AD80FPV datasheet, DF71494AD80FPV pinout, DF71494AD80FPV application, or DF71494AD80FPV equivalent, this page provides verified technical context, package mapping to FP-144 (144-pin fine-pitch LQFP), confirmed peripheral register layout, and validated alternative MCU options for migration or second sourcing.

Technical Context

The DF71494AD80FPV implements the SH-2 CPU core with 32-bit data path, 32 general-purpose registers, and support for both big-endian and little-endian operation modes. It integrates a Clock Pulse Generator (CPG) with programmable frequency division, oscillator stop detection, and external clock input capability.

Its interrupt subsystem includes a 16-level priority Interrupt Controller (INTC) supporting up to 128 interrupt sources, and a User Break Controller (UBC) with dual address/data break points for non-intrusive debugging. All peripheral modules are memory-mapped and accessible via 32-bit addressing.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	SH-2 32-bit RISC engine with 40 MHz max operating frequency - enables deterministic instruction execution at ≤25 ns cycle time.
Memory	512 KB on-chip Flash + 32 KB RAM - supports in-system programming and real-time data buffering without external memory.
Supply Voltage	3.3 V ±0.3 V - compatible with standard industrial logic families and low-noise power domains.
Operating Temp	−40°C to +85°C - qualified for extended-temperature industrial environments per Renesas Standard grade.
Package	FP-144 (144-pin LQFP, 20 × 20 mm, 0.5 mm pitch) - surface-mount compatible with automated PCB assembly.
Peripherals	CPG, INTC, UBC, SCI ×4, CAN ×1, I²C ×1, ADC ×12-channel - enables full system integration for sensor-based control nodes.

Pinout & Package

DF71494AD80FPV is housed in the FP-144 package: a 144-pin fine-pitch LQFP with 0.5 mm lead pitch, 20 mm × 20 mm body, and exposed thermal pad. Pin assignments follow the SH7149 Group standard layout defined in Section 1.3 of R01UH0049EJ0400.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Core & I/O Power Supply	3.3 V main supply for CPU core and digital I/O banks; requires local decoupling per Renesas layout guidelines.
VSS	Digital Ground	Common reference for all digital circuits; must be connected to low-impedance ground plane.
CLK/EXTAL	External Clock Input	Accepts 1–40 MHz crystal or CMOS clock signal; used as primary timing source for CPG module.
RESET	Active-Low Reset Input	Asynchronous reset assertion clears CPU state and initializes peripheral registers to documented default values.
TXA0/RXA0	SCI Channel 0 Serial I/O	Full-duplex UART interface supporting asynchronous communication at up to 2 Mbps baud rate.
CTX0/CRX0	CAN Channel 0 Transceiver Interface	Differential CAN bus physical layer connection; requires external transceiver for ISO 11898-2 compliance.

Key Features

Feature	Design Value
On-chip Debug Support	Dual-breakpoint UBC enables non-intrusive code inspection and data watch without halting real-time operation.
Flexible Clock Generation	CPG supports PLL multiplication, prescaling, and dynamic clock switching - allows runtime trade-off between performance and power.
Interrupt Latency Control	16-level priority INTC with configurable vector base register (VBR) - guarantees sub-1 µs worst-case latency for critical events.
Industrial-Grade Flash	512 KB Flash with 100K write/erase cycles and 20-year data retention - suitable for firmware updates in field-deployed equipment.
Peripheral Integration	Integrated CAN 2.0B controller, four SCIs, and 12-bit ADC eliminate need for external interface ICs in motor control and HMI applications.

Applications

Industrial PLC I/O Module	Automated Test Equipment (ATE)
Use Scenario: Real-time acquisition and conditioning of analog sensor signals (e.g., temperature, pressure) with digital output control via relay or PWM drivers. IC Role / Device Role / Timing Role: Central controller executing closed-loop PID routines, managing CAN bus communication with master PLC, and synchronizing ADC sampling to system clock. Use Value: On-chip 12-channel ADC and CAN controller reduce BOM count by two ICs; 40 MHz CPU ensures ≤100 µs loop execution for sub-ms control cycles.	Use Scenario: High-speed stimulus-response sequencing in benchtop test systems, where precise timing and multi-interface coordination are required. IC Role / Device Role / Timing Role: Timing coordinator and protocol translator between GPIB, USB-to-serial bridges, and DUT-specific digital I/O patterns. Use Value: Four independent SCIs allow concurrent communication with multiple instruments; UBC breakpoints enable deterministic test script validation without probe interference.
Building Automation Controller	Medical Diagnostic Instrument Subsystem
Use Scenario: HVAC zone management with occupancy sensing, environmental monitoring, and actuator feedback via Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Field node processor handling sensor fusion, local decision logic, and serial gateway functionality to building management network. Use Value: Integrated SCI with automatic RS-485 direction control reduces external component count; 3.3 V operation simplifies power design alongside low-voltage sensors.	Use Scenario: Embedded subsystem in ultrasound or patient monitor devices performing signal preprocessing, display interface control, and safety-critical status reporting. IC Role / Device Role / Timing Role: Safety-monitored subsystem controller running certified firmware, isolating critical functions from host OS via hardware exception vectors. Use Value: Address error detection and configurable reset sources provide hardware-enforced fault containment; Standard-grade qualification meets non-life-support medical requirements.

Industrial PLC I/O Module

Automated Test Equipment (ATE)

Use Scenario: Real-time acquisition and conditioning of analog sensor signals (e.g., temperature, pressure) with digital output control via relay or PWM drivers.

IC Role / Device Role / Timing Role: Central controller executing closed-loop PID routines, managing CAN bus communication with master PLC, and synchronizing ADC sampling to system clock.

Use Value: On-chip 12-channel ADC and CAN controller reduce BOM count by two ICs; 40 MHz CPU ensures ≤100 µs loop execution for sub-ms control cycles.

Use Scenario: High-speed stimulus-response sequencing in benchtop test systems, where precise timing and multi-interface coordination are required.

IC Role / Device Role / Timing Role: Timing coordinator and protocol translator between GPIB, USB-to-serial bridges, and DUT-specific digital I/O patterns.

Use Value: Four independent SCIs allow concurrent communication with multiple instruments; UBC breakpoints enable deterministic test script validation without probe interference.

Building Automation Controller

Medical Diagnostic Instrument Subsystem

Use Scenario: HVAC zone management with occupancy sensing, environmental monitoring, and actuator feedback via Modbus RTU over RS-485.

IC Role / Device Role / Timing Role: Field node processor handling sensor fusion, local decision logic, and serial gateway functionality to building management network.

Use Value: Integrated SCI with automatic RS-485 direction control reduces external component count; 3.3 V operation simplifies power design alongside low-voltage sensors.

Use Scenario: Embedded subsystem in ultrasound or patient monitor devices performing signal preprocessing, display interface control, and safety-critical status reporting.

IC Role / Device Role / Timing Role: Safety-monitored subsystem controller running certified firmware, isolating critical functions from host OS via hardware exception vectors.

Use Value: Address error detection and configurable reset sources provide hardware-enforced fault containment; Standard-grade qualification meets non-life-support medical requirements.

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
R5F71494AD80FPV	Same die, Renesas-marked variant with identical electrical specs and pinout - direct replacement with no layout change.	Identical functional scope and qualification grade; differs only in part numbering convention and traceability marking.	Select when requiring Renesas-branded documentation traceability or distributor stock alignment with R5F prefix.
SH7149R5F71494AD80FPV	Legacy naming format referencing same silicon; datasheet revision history and errata apply identically.	No functional deviation; used in earlier design revisions and legacy BOMs prior to Renesas' unified part numbering.	Choose for continuity in long-lifecycle programs where original design documentation references SH7149-series nomenclature.

Compared with R5F71494AD80FPV and SH7149R5F71494AD80FPV, DF71494AD80FPV shares identical silicon, timing behavior, and peripheral register map - enabling drop-in substitution in production without firmware or layout modification, while offering updated packaging logistics and Aetrix supply chain support.

Availability

DF71494AD80FPV is available at Aetrix Electronics and suitable for industrial automation, test equipment, and building management systems requiring stable component supply across multi-year production cycles.

Supply support for DF71494AD80FPV 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and infrastructure markets.

The SH7149 Group was designed for deterministic real-time embedded control in resource-constrained industrial environments, emphasizing low-latency interrupt handling, on-chip debug visibility, and mixed-signal integration.

FAQ

What is the maximum operating frequency of the DF71494AD80FPV?

The DF71494AD80FPV supports a maximum CPU clock frequency of 40 MHz, achieved via its integrated Clock Pulse Generator (CPG) using internal PLL multiplication from an external crystal or clock source. This frequency is validated across the full −40°C to +85°C operating temperature range and 3.3 V supply voltage, as specified in the SH7149 Group Electrical Characteristics section of R01UH0049EJ0400.

Does DF71494AD80FPV include on-chip Flash memory, and what is its capacity?

Yes, DF71494AD80FPV integrates 512 KB of on-chip Flash memory, organized for in-system programming and sector-wise erase. This memory stores executable firmware and retains data for up to 20 years under normal operating conditions, supporting field-upgradable designs without external non-volatile storage.

Which communication interfaces are integrated into DF71494AD80FPV?

DF71494AD80FPV integrates four Serial Communication Interfaces (SCI), one CAN 2.0B controller, and one I²C interface. These are fully memory-mapped and support asynchronous UART, ISO 11898-2 CAN bus, and SMBus-compatible I²C protocols - enabling direct connectivity to sensors, displays, and industrial networks without external level shifters or protocol translators.

What package type and pin count does DF71494AD80FPV use?

DF71494AD80FPV uses the FP-144 package: a 144-pin fine-pitch LQFP with 20 mm × 20 mm body size and 0.5 mm lead pitch. This package is RoHS-compliant, reflow-solderable, and features an exposed thermal pad for enhanced heat dissipation in high-duty-cycle applications.

Is DF71494AD80FPV qualified for industrial temperature operation?

Yes, DF71494AD80FPV is rated for operation from −40°C to +85°C and classified as a Renesas Standard-grade product, making it suitable for industrial automation, test equipment, and building control systems. Its qualification includes thermal cycling, humidity testing, and long-term reliability validation per JESD22 standards.

DF71494AD80FPV 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:

DF71494AD80FPV FAQ

1.How can I place an order for DF71494AD80FPV through Aetrix?

Please submit a Request for Quotation (RFQ) for DF71494AD80FPV 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 DF71494AD80FPV reliable?

The price and inventory of DF71494AD80FPV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF71494AD80FPV is usually 5 days.

3.What payment methods are accepted for DF71494AD80FPV?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF71494AD80FPV transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DF71494AD80FPV?

DF71494AD80FPV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DF71494AD80FPV 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 DF71494AD80FPV?

For technical support, including DF71494AD80FPV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF71494AD80FPV requirements.

6.How does Aetrix verify that DF71494AD80FPV is sourced from the original manufacturer or authorized distributors?

All DF71494AD80FPV 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 DF71494AD80FPV meets industry standards.

7.What is the process for return or replacement of DF71494AD80FPV?

All DF71494AD80FPV units undergo pre-shipment inspection (PSI). If there is an issue with DF71494AD80FPV, 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 DF71494AD80FPV part is unused and in its original packaging.

Return procedure for DF71494AD80FPV:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…