ATMEGA169-16MI

Program Memory Type:	FLASH
Base Part Number:	ATMEGA169
Supplier Device Package:	64-QFN (9x9)
Package / Case:	64-VFQFN Exposed Pad
Operating Temperature:	-40°C ~ 85°C (TA)
Oscillator Type:	Internal
Data Converters:	A/D 8x10b
Voltage - Supply (Vcc/Vdd):	2.7 V ~ 5.5 V
RAM Size:	1K x 8
EEPROM Size:	512 x 8
Series:	AVR® ATmega
Program Memory Size:	16KB (8K x 16)
Number of I/O:	54
Peripherals:	Brown-out Detect/Reset, LCD, POR, PWM, WDT
Connectivity:	SPI, UART/USART, USI
Speed:	16MHz
Core Size:	8-Bit
Core Processor:	AVR
Part Status:	Obsolete
Packaging:	Tray

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Introduction

The ATMEGA169-16MI is a low power 8-bit microcontroller designed and manufactured by Atmel Corporation for high-speed embedded applications. It is based on AVR\'s architecture which is a modified Harvard architecture designed for low power, high performance and ease of use. It contains two main blocks: a flash memory for program memory, and a SRAM for data memory. The device is pre-programmed and offers some features that allow it to be used in different applications such as embedded controllers and industrial control systems.

Features

The ATMEGA169-16MI is a 32-pin device that includes a 1Kbyte of Flash Program Memory and 32Kbytes of SRAM, which is split into two blocks - one of 16Kbyte and one of 8Kbyte. It also includes several I/O interfaces including one SPI (Serial Peripheral Interface), two general purpose UARTs and a parallel port. The device is powered by an 8MHz crystal oscillator, and is capable of operating at temperatures of up to 85°C. The device also includes a watchdog timer and a clock output which allow for maintaining application timing and scheduling. The device also offers an external interrupt generator for PAVR applications. Furthermore, the device also supports sleep mode and the brown-out reset function which ensures that the system remains in a safe state.

Application Field

The ATMEGA169-16MI is a low power 8-bit microcontroller that is ideal for embedded applications such as motor control, human interfaces, instrumentation systems, remote monitoring, industrial control and home automation. Due to its low power requirements, the device can also be used in battery-powered systems. The device is suitable for applications where performance, reliability, and cost are important factors.

Working Principle

The ATMEGA169-16MI is composed of two main blocks: a flash memory for program memory and a SRAM for data memory. The device employs a modified Harvard architecture to allow for high performance, low power and ease of use. The flash memory and SRAM are connected to the AVR core by an address and data bus. The flash memory is used to store the user-program, while the SRAM is used to store temporary data. The flash memory and SRAM are both connected to the AVR core which executes the program instructions stored in the flash memory. The user program is written in assembly language and must be assembled by the AVR assembler prior to burning into the flash memory.

Conclusion

The ATMEGA169-16MI is a low power 8-bit microcontroller designed for high-speed embedded applications. Its 1Kbyte of Flash Program Memory and 32Kbytes of SRAM allow for fast execution of program instructions. The device is suitable for applications where performance, reliability, and cost are important factors. Its features such as SPI, UARTs and parallel port ensure the device can be used in a variety of embedded applications. The AVR core with its modified Harvard architecture enables the device to operate at low power and high performance.

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