AT91SAM7S256D-AU

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AT91SAM7S256D-AU

IC MCU 16/32B 256KB FLASH 64LQFP

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Spécifications

Package Tray
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-LQFP

Vue d'ensemble

Description

The AT91SAM7S256D-AU is a microcontroller from Atmel's SAM7 series, based on the ARM7TDMI core. It features a 32-bit RISC architecture, operating up to 55 MHz with a performance of up to 1.0 DMIPS/MHz. The device includes 256KB of flash memory, 64KB of SRAM, and supports various interfaces such as USB 2.0, UART, SPI, and I2C, making it suitable for embedded applications.
Key features include built-in peripherals for analog-to-digital conversion, timers, and real-time clock, along with a flexible clocking system. It also supports low-power modes, which are advantageous for battery-operated devices. The AT91SAM7S256D-AU is designed for ease of integration, with a 64-pin TQFP package, suitable for a range of applications such as industrial control, consumer electronics, and communication systems. Its comprehensive development support, including the Atmel Studio IDE and various evaluation kits, facilitates rapid prototyping and application development.

Features

The AT91SAM7S256D-AU is a microcontroller based on the ARM7TDMI core, featuring:
- Architecture: 32-bit ARM RISC architecture.
- Flash Memory: 256 KB of Flash memory for program storage.
- SRAM: 64 KB of SRAM for data storage.
- Operating Frequency: Up to 55 MHz clock speed.
- Peripheral Interfaces: Includes multiple I/O ports, USART, SPI, TWI (I2C), and USB 2.0 device interface.
- ADC: 10-bit, 8-channel Analog-to-Digital Converter.
- Timers: Multiple general-purpose timers, PWM channels, and real-time clock (RTC).
- Low Power: Multiple power-saving modes for energy efficiency.
- Programming Interface: JTAG interface for debugging and programming.
- Package: Available in a 64-pin QFP package.
These features make the AT91SAM7S256D-AU suitable for various embedded applications, including industrial automation, consumer electronics, and medical devices.

Package

The AT91SAM7S256D-AU is packaged in a 64-pin LQFP (Low-profile Quad Flat Package) type.

Pinout

The AT91SAM7S256D-AU is a microcontroller from Atmel's SAM7 series based on the ARM7TDMI core. It features a total of 64 pins in a LQFP (Low-profile Quad Flat Package) configuration.
The primary functions of its pins include:
1. GPIO: General Purpose Input/Output pins for general digital signal interfacing.
2. Communication Interfaces:
- USART (Universal Synchronous/Asynchronous Receiver Transmitter)
- SPI (Serial Peripheral Interface)
- TWI (Two-Wire Interface, also known as I2C)
3. Timers: Several pins serve as timer inputs/outputs for PWM (Pulse Width Modulation) and other timing functions.
4. Analog: ADC (Analog-to-Digital Converter) inputs.
5. Power: VDD, VSS for power supply connections.
6. Reset: An external reset pin.
Overall, the AT91SAM7S256D-AU is versatile for various applications, including embedded systems and industrial controls.

Manufacturer

The AT91SAM7S256D-AU is manufactured by Microchip Technology Inc., a leading provider of microcontroller and analog semiconductors. Microchip is known for its embedded control solutions and provides a wide range of products, including microcontrollers, digital signal controllers, and other related technologies. The company serves various industries, including automotive, industrial, and consumer electronics. Established in 1989 and headquartered in Chandler, Arizona, Microchip emphasizes innovation and reliability in its product offerings, making it a key player in the semiconductor industry.

Application

The AT91SAM7S256D-AU microcontroller is widely used in embedded systems, including industrial automation, consumer electronics, automotive applications, and medical devices. Its applications extend to data acquisition systems, motor control, portable devices, and communication interfaces due to its ARM7 architecture, versatile I/O capabilities, and integrated peripherals. Additionally, it is suitable for development in IoT devices, enabling connectivity and control in smart applications.

Equivalent

Equivalent products for the AT91SAM7S256D-AU chip include the AT91SAM7S128D-AU (lower memory), AT91SAM7S64D-AU (even lower memory), and other ARM7-based microcontrollers from the Atmel/Microchip SAM7 series. Additionally, similar microcontrollers from other manufacturers like NXP LPC2100 series and STMicroelectronics STM32F1 series may also serve as alternatives, depending on specific requirements such as memory, peripherals, and operating voltage. Always verify compatibility for your specific application needs.

Expédition

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Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

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