AT91SAM7A3-AU

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AT91SAM7A3-AU

IC MCU 16/32B 256KB FLSH 100LQFP

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Spezifikationen

Package Tray
Series AT91SAM
ProductStatus Obsolete
CoreProcessor ARM7®
CoreSize 16/32-Bit
Speed 60MHz
Connectivity CANbus, I²C, Memory Card, SPI, SSC, UART/USART
Peripherals POR, PWM, WDT
NumberofI/O 62
ProgramMemorySize 256KB (256K x 8)
ProgramMemoryType FLASH
RAMSize 32K x 8
Voltage-Supply(Vcc/Vdd) 1.65V ~ 1.95V
DataConverters A/D 8x10b
OscillatorType Internal
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 100-LQFP

Übersicht

Description

The AT91SAM7A3-AU is a microcontroller from Atmel's SAM7 series, based on the ARM7TDMI core. It operates at a maximum clock frequency of 55 MHz and features 32KB of embedded SRAM and 256KB of flash memory, making it suitable for a variety of embedded applications. This microcontroller includes a rich set of peripherals, such as USB 2.0 device interface, multiple SPI, USART, and I2C interfaces, as well as timers and PWM for motor control.
The AT91SAM7A3-AU supports various development environments and is compatible with standard programming tools, promoting ease of integration into projects. Its low power consumption and robust performance make it ideal for applications in consumer electronics, automotive, and industrial control systems. Additionally, it features a flexible I/O system and supports advanced power management modes to enhance battery life in portable devices.

Features

The AT91SAM7A3-AU is a microcontroller from Atmel (now part of Microchip Technology) featuring the ARM7TDMI core. Key features include:
- 32-bit RISC architecture: Provides efficient performance and low power consumption.
- Frequency: Operates up to 55 MHz.
- Memory: Includes 256 KB of Flash memory and 64 KB of SRAM.
- Peripheral interfaces: Supports multiple interfaces such as UART, SPI, TWI, and CAN, enabling versatile connectivity.
- GPIO: Offers 32 general-purpose input/output pins for flexible interfacing.
- Analog features: Equipped with a 10-bit ADC for analog signal processing.
- Timers: Contains several timers for real-time applications.
- Low power modes: Various power-saving modes for energy-efficient designs.
- Development support: Compatible with various development tools and environments for easy software design.
This microcontroller is ideal for a range of applications, including industrial control, consumer electronics, and communication devices.

Package

The AT91SAM7A3-AU is available in a 64-pin LQFP (Low-Profile Quad Flat Package) package type.

Pinout

The AT91SAM7A3-AU is a microcontroller from Atmel's SAM7 series based on the ARM7TDMI core. It features a 64-pin TQFP (Thin Quad Flat Package) configuration.
The key pin functions include:
1. Power Supply: VDD (power) and VSS (ground) pins.
2. Digital I/O: 32 general-purpose I/O (GPIO) pins.
3. Communication Interfaces:
- 1x USART
- 1x SPI
- 1x TWI (I2C)
4. Timers/Counters: 3x 16-bit timers.
5. ADC: 10-bit ADC with multiple input channels.
6. Debugging: JTAG interface for debugging.
7. Reset: NRST pin for resetting the microcontroller.
8. Clock: XTAL and associated pins for external crystal oscillator connections.
This microcontroller is suitable for various embedded applications, providing flexibility and efficient performance.

Manufacturer

The AT91SAM7A3-AU is manufactured by Microchip Technology Inc., a leading provider of microcontroller and analog semiconductors. Microchip specializes in embedded control solutions, offering a wide range of microcontrollers, digital signal controllers, and related products. The company serves various industries, including automotive, industrial, consumer, and communications, with a strong focus on innovation and customer support. Founded in 1989, Microchip has grown to become a significant player in the semiconductor industry, known for its commitment to quality, low-power designs, and comprehensive development tools.

Application

The AT91SAM7A3-AU microcontroller is commonly used in embedded systems for applications such as industrial automation, consumer electronics, medical devices, and automotive systems. Its integrated features make it suitable for tasks like control systems, data acquisition, and communication interfaces, particularly in low-power, cost-sensitive environments.

Equivalent

The AT91SAM7A3-AU chip is part of the Atmel SAM7 series of ARM7-based microcontrollers. Equivalent products include the AT91SAM7S series, such as AT91SAM7S64 and AT91SAM7S128, which offer similar ARM7TDMI architecture, peripheral features, and memory options. Additionally, other ARM Cortex-M based microcontrollers like the SAM3 and SAM4 series may serve as more modern alternatives, providing enhanced performance and features.

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