AT91SAM7S256D-MU

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AT91SAM7S256D-MU

IC MCU 16/32BIT 256KB FLSH 64QFN

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Thông số kỹ thuật

Package Bulk
Series SAM7S
ProductStatus Active
CoreProcessor ARM7®
CoreSize 16/32-Bit
Speed 55MHz
Connectivity I²C, SPI, SSC, UART/USART, USB
Peripherals Brown-out Detect/Reset, DMA, POR, PWM, WDT
NumberofI/O 32
ProgramMemorySize 256KB (256K x 8)
ProgramMemoryType FLASH
RAMSize 64K 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 64-VFQFN Exposed Pad

Tổng quan

Description

The AT91SAM7S256D-MU is a microcontroller from Atmel's SAM7 series, based on the ARM7TDMI core. It features a 32-bit RISC architecture, offering a balance of performance and power efficiency. With 256 KB of flash memory and 64 KB of SRAM, it supports a wide range of embedded applications. The microcontroller operates at a maximum clock frequency of 55 MHz, providing sufficient processing power for various tasks.
Key features include multiple I/O pins, UART, SPI, and TWI interfaces for communication, as well as ADC and PWM capabilities for analog applications. The AT91SAM7S256D-MU is ideal for applications in industrial control, automotive, and consumer electronics due to its versatility and robust performance.
Additionally, it includes features such as a watchdog timer, power management modes, and various peripheral interfaces, making it suitable for low-power applications. Its compact size and ease of integration make it a popular choice for designers seeking reliable and efficient microcontroller solutions.

Features

The AT91SAM7S256D-MU is a microcontroller from Atmel's SAM7 series, based on the ARM7TDMI core. Key features include:
1. Core: 32-bit ARM7TDMI processor, running at up to 55 MHz.
2. Memory: 256 KB Flash memory and 64 KB SRAM.
3. I/O Ports: Up to 32 programmable I/O lines.
4. Peripherals:
- USB 2.0 Device controller.
- 10-bit ADC with 8 channels.
- SPI, I2C, and USART communication interfaces.
- PWM (Pulse Width Modulation).
5. Timers: Multiple general-purpose timers and real-time clock.
6. Operating Voltage: 1.8V to 3.6V.
7. Power Management: Low-power modes for energy efficiency.
8. Development Support: Compatible with various development tools, including IAR Embedded Workbench and Keil.
The AT91SAM7S256D-MU is suitable for applications in industrial control, automotive, and consumer electronics due to its robust performance and extensive peripheral options.

Package

The AT91SAM7S256D-MU is offered in a LQFP (Low-profile Quad Flat Package) with 64 pins. This package type allows for efficient surface mounting and provides a compact solution for embedded applications.

Pinout

The AT91SAM7S256D-MU is a microcontroller from Atmel's AT91SAM7 series. It features a total of 64 pins in a Thin Quad Flat Package (TQFP) format.
Key functions include:
- Core: ARM7TDMI-S 32-bit RISC processor.
- Flash Memory: 256 KB of embedded flash memory.
- RAM: 64 KB of SRAM.
- I/O Ports: Up to 48 general-purpose I/O pins.
- Communication Interfaces:
- USART (Universal Synchronous/Asynchronous Receiver Transmitter)
- SPI (Serial Peripheral Interface)
- TWI (Two-Wire Interface)
- Timers: 3 timer/counter units.
- ADC: 10-bit ADC (Analog-to-Digital Converter) with up to 8 channels.
- USB: Full-speed USB 2.0 Device.
- PWM: Pulse Width Modulation channels.

The microcontroller is suitable for various embedded applications due to its versatile pin configuration and integrated features.

Manufacturer

The AT91SAM7S256D-MU is manufactured by Microchip Technology Inc. Microchip is a leading semiconductor company that specializes in designing and manufacturing microcontrollers, analog semiconductors, and memory products. The company focuses on embedded control applications and offers a wide range of products for various industries, including automotive, industrial, consumer electronics, and communications. Microchip is known for its commitment to innovation, quality, and customer support, providing solutions that enable efficient design and development for engineers and developers worldwide.

Application

The AT91SAM7S256D-MU is an ARM7-based microcontroller commonly used in embedded systems. Key application areas include industrial automation, consumer electronics, medical devices, automotive systems, and communication equipment. Its versatility and integration of peripherals make it suitable for applications like data acquisition, motor control, user interface design, and remote monitoring systems.

Equivalent

The AT91SAM7S256D-MU is an ARM7-based microcontroller. Equivalent products include the AT91SAM7S64, AT91SAM7S128, and AT91SAM7S256, all from the same SAM7 family. Other alternatives might include the NXP LPC2148 and LPC2138, which are also ARM7-based microcontrollers. For more recent applications, consider switching to the ARM Cortex-M series, such as the STM32F103 or NXP LPC11xx series, which offer improved performance and features. Always verify specific pin configurations and feature sets for compatibility.

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