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Name: AT91R40008-66AU
Brand: Microchip Technology
SKU: AT91R40008-66AU
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Microchip Technology AT91R40008-66AU

Part No.:: AT91R40008-66AU

Manufacturer:: Microchip Technology

Package:: 100-LQFP

Datasheet:: AT91R40008-66AU.pdf

Description:: IC MCU 16/32BIT ROMLESS 100LQFP

In Stock:: 3261

Quantity:: Add To Cart

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AT91R40008-66AU Specifications

Package/Case:
100-LQFP
Packaging:
Tray
Series:
AT91
RoHS:
RoHS
Speed:
66MHz
RAM Size:
256K x 8
Core Size:
16/32-Bit
EEPROM Size:
-
Part Status:
Active
Peripherals:
POR, WDT
Connectivity:
EBI/EMI, UART/USART
Mounting Type:
Surface Mount
Number of I/O:
32
Core Processor:
ARM7®
Data Converters:
-
Oscillator Type:
External
Program Memory Size:
-
Program Memory Type:
ROMless
Operating Temperature:
-40°C ~ 85°C (TA)

AT91R40008-66AU this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including AT91R40008-66AU price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for AT91R40008-66AU to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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AT91R40008-66AU information

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AT91R40008-66AU Typical application Circuitry

AT91R40008-66AU

The AT91R40008-66AU is a microcontroller developed by Microchip Technology (formerly Atmel), designed for embedded applications requiring high-performance processing, low power consumption, and a wide array of integrated peripherals. This microcontroller is based on the ARM7TDMI processor core, operating at up to 66 MHz, making it well-suited for applications in industrial control, medical devices, automotive systems, and smart embedded systems.

Application Scenarios

The AT91R40008-66AU can be utilized in a variety of applications such as:

- Industrial Control Systems: For managing machinery operations, sensor data acquisition, and process control.

- Automotive Electronics: In vehicle diagnostics, entertainment systems, and engine control units.

- Smart Embedded Systems: For IoT devices, smart home applications, and wearable technology.

- Medical Devices: In patient monitoring systems, handheld diagnostic devices, and medical imaging systems.

Key Features

- Processor Core: ARM7TDMI running up to 66 MHz.

- Memory: Integrated 256KB of high-speed Flash and 64KB of SRAM, with support for external memory interfaces.

- Peripherals: A rich set of peripherals including UARTs, SPI, Timer Counters, and USB Device Port.

- I/O: General-purpose I/O (GPIO) for flexible connection to other circuits and devices.

- Power Efficiency: Features multiple power-saving modes to optimize power consumption for various application needs.

Example Application Scenario: Industrial Process Controller

Designing a Circuit for Sensor Data Acquisition and Control

1. Power Supply Connection: The AT91R40008-66AU requires a stable power supply. Connect a 3.3V power source to the VDD pins and ground to the VSS pins. Power supply decoupling capacitors (e.g., 100nF ceramic close to the VDD pins) are crucial to filter out noise.

2. Clock Source: For the system clock, connect a 12MHz crystal to the OSC1 and OSC2 pins. Selection of capacitors for the crystal oscillator should be based on the crystal manufacturer's recommendations, typically around 22pF.

3. Serial Communication for Debugging: Utilize one of the UART interfaces for debugging purposes. Connect a UART-to-USB converter to UART0 (pins PA5 and PA6 for TXD0 and RXD0, respectively). This setup allows for communication with a PC for programming and debugging.

4. GPIO for Process Control: Use GPIO pins (e.g., PA0-PA3) to control actuators or read sensors. For instance, PA0 could drive a relay via a transistor switch circuit for turning a motor on/off, while PA1 could be configured as an input with an external pull-up resistor to read a sensor status.

5. External Memory Interface: If additional data storage is needed, external Flash or SRAM can be connected to the AT91R40008-66AU. Use the EBI (External Bus Interface) pins, such as A0-A23 for address lines and D0-D15 for data lines, to interface with the memory.

6. Programming Interface: For programming the AT91R40008-66AU, a JTAG interface is necessary. Connect a JTAG programmer to the TDI, TDO, TCK, TMS, and nTRST pins. This interface is also used for in-system debugging.

Design Considerations:

- Electromagnetic Interference (EMI): Implementing proper PCB layout techniques is crucial to minimize EMI, especially in industrial environments. This includes using ground planes, minimizing loop areas, and routing sensitive signals away from noisy traces.

- Thermal Management: Although the AT91R40008-66AU is designed for low power consumption, in applications where it is running at high frequencies or in high ambient temperatures, appropriate heat dissipation measures should be considered.

- Firmware Development: Developing efficient firmware that leverages the AT91R40008-66AU's power-saving modes is essential for applications where power efficiency is critical.

By carefully integrating these components and considerations, a robust circuit for an industrial process controller utilizing the AT91R40008-66AU can be designed, offering reliable sensor data acquisition and actuator control capabilities.

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

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