AT91SAM7X256B-AU

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AT91SAM7X256B-AU

IC MCU 16/32B 256KB FLSH 100LQFP

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規格

Series SAM7X
Part Status Obsolete
DigiKey Programmable Not Verified
Core Processor ARM7®
Core Size 16/32-Bit
Speed 55MHz
Connectivity CANbus, Ethernet, I2C, SPI, SSC, UART/USART, USB
Peripherals Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O 62
Program Memory Size 256KB (256K x 8)
Program Memory Type FLASH
RAM Size 64K x 8
Voltage - Supply (Vcc/Vdd) 1.65V ~ 1.95V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Supplier Device Package 100-LQFP (14x14)
Package / Case 100-LQFP
Base Product Number AT91SAM7X256

概述

Description

The AT91SAM7X256B-AU is a microcontroller from Atmel's ARM7 family, featuring a 32-bit ARM7TDMI-S core. It operates at clock speeds up to 55 MHz and offers 256 KB of flash memory along with 64 KB of SRAM. This microcontroller is designed for embedded applications requiring efficient processing and low power consumption.
Key features include a rich set of peripherals such as USB 2.0 device controller, multiple USART, SPI, and I2C interfaces, as well as ADC and PWM capabilities. It also supports various communication protocols, making it suitable for diverse applications like industrial control, consumer electronics, and medical devices.
The AT91SAM7X256B-AU integrates features for security and reliability, like a built-in watchdog timer and various power-saving modes. With its flexible architecture and extensive development tools, it allows developers to create robust applications efficiently. The device is available in a TQFP package, facilitating easy integration into designs. Overall, it is a versatile microcontroller ideal for complex embedded systems.

Features

The AT91SAM7X256B-AU is a microcontroller from Atmel (now part of Microchip Technology) based on the ARM7TDMI core. Key features include:
- Architecture: 32-bit ARM7TDMI RISC processor running up to 55 MHz.
- Memory: 256 KB of Flash memory and 64 KB of SRAM.
- Peripherals:
- 2 x USART, 1 x SPI, 1 x TWI (I2C).
- 8-channel 10-bit ADC.
- PWM controller with up to 6 outputs.
- USB 2.0 full-speed device interface.
- GPIO: Up to 64 programmable I/O pins.
- Timers: Three 16-bit timers/counters.
- Operating Voltage: 1.8V to 3.6V.
- Low Power Modes: Various modes for energy efficiency.
- Development Support: Compatible with various development tools and IDEs.
These features make the AT91SAM7X256B-AU suitable for applications in industrial control, consumer electronics, and automotive systems.

Package

The AT91SAM7X256B-AU is packaged in a 64-pin QFN (Quad Flat No-lead) package.

Pinout

The AT91SAM7X256B-AU is a microcontroller from Microchip Technology, part of the SAM7 series based on the ARM7TDMI core. It features a total of 64 pins in a LQFP (Low-profile Quad Flat Package) configuration.
Key functions of the pins include:
1. Power Supply: VDD and VSS pins for power connections.
2. I/O Ports: Several General Purpose Input/Output (GPIO) pins that can be configured for various functions.
3. Communication Interfaces:
- USART for serial communication.
- SPI for synchronous serial communication.
- TWI/I2C for interfacing with peripherals.
4. Timer/Counter: Dedicated pins for PWM and timer functions.
5. ADC: Analog-to-Digital Converter inputs.
6. Reset: A reset pin to initialize the microcontroller.
7. Debugging: Pins for JTAG and SWD for programming and debugging.
The AT91SAM7X256B-AU is commonly used in embedded applications due to its flexibility and integrated peripherals.

Manufacturer

The AT91SAM7X256B-AU is manufactured by Microchip Technology Inc., a leading company in the semiconductor industry. Microchip specializes in developing microcontrollers, memory products, and analog semiconductors, primarily for embedded control applications. Founded in 1989 and headquartered in Chandler, Arizona, Microchip provides a wide range of products and solutions for various industries, including automotive, consumer, industrial, and communications. The AT91SAM7X256B-AU is part of their ARM-based microcontroller family, designed for high-performance applications with integrated features such as USB, ADC, and multiple communication interfaces.

Application

The AT91SAM7X256B-AU microcontroller is commonly used in embedded systems, including industrial automation, consumer electronics, automotive applications, and medical devices. Its applications extend to data acquisition systems, portable devices, and communication interfaces due to its ARM7 architecture, USB support, and rich peripheral set. Additionally, it's suitable for IoT applications and control systems that require real-time processing and connectivity.

Equivalent

The AT91SAM7X256B-AU is an ARM7-based microcontroller from Atmel (now part of Microchip). Equivalent products include:
1. STM32F103C8T6 - STMicroelectronics
2. LPC2148 - NXP Semiconductors
3. PIC32MX250F128B - Microchip
4. MK20DX256 - NXP/Freescale
These alternatives offer similar core architectures and functionalities, suitable for various embedded applications. Always check specific features and peripherals for compatibility.

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