AT91SAM7S128D-AU-999

Series:	SAM7S
Packaging:	Tape & Reel (TR)
Part Status:	Active
Core Processor:	ARM7®
Core Size:	16/32-Bit
Speed:	55MHz
Connectivity:	I²C, SPI, SSC, UART/USART, USB
Peripherals:	Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O:	32
Program Memory Size:	128KB (128K x 8)
Program Memory Type:	FLASH
EEPROM Size:	--
RAM Size:	32K x 8
Voltage - Supply (Vcc/Vdd):	1.65 V ~ 1.95 V
Data Converters:	A/D 8x10b
Oscillator Type:	Internal
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	64-LQFP
Supplier Device Package:	64-LQFP (10x10)
Base Part Number:	AT91SAM7S128

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Introduction

The AT91SAM7S128D-AU-999 is a low-power 32-bit ARM7TDMI-S processor-based microcontroller, which is suitable for a variety of applications and is specifically designed for embedded systems. It features an ARM7TDMI-S processor, 256KB flash memory, 16KB of RAM and 128KB of EEPROM. It has been designed to provide a low-cost and low-power processor solution to increase the performance and reduce the cost of embedded systems.

Application Field

The AT91SAM7S128D-AU-999 is used in a variety of embedded systems, such as industrial, medical and consumer electronics. Its small size, low power consumption and cost-effective architecture makes it ideal for a wide range of embedded applications, such as medical equipment, communications, automotive, and consumer products. Its features include integrated CAN bus, USB host and device controllers, Ethernet MAC, SPI and TWI Multi-master Serial Bus controllers, Parallel Input/Output (PIO) pins and an analog-to-digital converter (ADC).

Features

The AT91SAM7S128D-AU-999 has a variety of features that make it suitable for embedded systems. It has a 32-bit ARM7TDMI-S processor that runs up to 50MHz, 256KB flash memory, 16KB of RAM and 128KB of EEPROM. Its features include an integrated CAN bus, USB host and device controllers, Ethernet MAC, SPI and TWI Multi-master Serial Bus controllers, Parallel Input/Output (PIO) pins and an analog-to-digital converter (ADC). It also has a watchdog timer and supports serial I/O interfaces, such as UART, ISO 7816-3, IrDA and JTAG.

Working Principle

The AT91SAM7S128D-AU-999 microcontroller is based on the industry-standard ARM7TDMI-S processor, which is a 32-bit RISC processor. It operates at up to 50MHz and can perform a variety of tasks, including basic computing and controlling of digital devices. It can handle a variety of instructions and can program multiple routines at the same time. The microcontroller also has an integrated peripheral bus, which is used to connect the external device to the processor, such as memory or other digital equipment.

The microcontroller works by reading instructions stored in memory, which are used to execute instructions. The instructions can be used to control the digital system, such as performing arithmetic operations and accessing data from memory. The instructions can also be used to control the communication interface with external devices, such as transmitting serial data. The microcontroller also has various registers, which can be used to store data for use in different functions. Modes of operation are available for performing specific tasks. For example, the microcontroller can operate in supervisor, user or debug mode, depending on the application.

To program the system, developers can use C or assembly language, depending on the application’s complexity. The application program is stored in flash memory and can be loaded into the microcontroller to run when power is applied. The program can access data stored in RAM, EEPROM or a variety of external devices. It can also communicate with external devices using the built-in peripherals. The microcontroller can also be used to measure analog signals using its built-in analog-to-digital converter.

Conclusion

The AT91SAM7S128D-AU-999 is a 32-bit ARM7TDMI-S processor-based microcontroller, which is ideal for low-cost and low-power embedded systems. It is suitable for a range of applications, including industrial, medical and consumer electronics. It features an ARM7TDMI-S processor, 256KB flash memory, 16KB of RAM and 128KB of EEPROM. It has a variety of features, such as integrated CAN bus, USB host and device controllers, Ethernet MAC, SPI and TWI Multi-master Serial Bus controllers, and Parallel Input/Output (PIO) pins. It works by reading instructions stored in memory, which are used to execute C or assembly language instructions. It can perform a variety of tasks, including basic computing and controlling of digital devices. The microcontroller can also measure analog signals using its built-in analog-to-digital converter.

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