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ATMEGA16A-AU 用户编程技术手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
TQFP-44
描述:
ATmega 系列 16 MHz 16 KB 闪存 1 KB SRAM 8 位 微控制器 - TQFP-44
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3P6P51Hot
原理图在P4P8P49P69P70P71P73P86P91P92P94P95
封装尺寸在P325P326P327
型号编码规则在P324
封装信息在P325
应用领域在P36P44P47P237P241P249P251P252P335
电气规格在P49P66
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ATMEGA16A-AU数据手册
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5
ATmega16A [DATASHEET]
Atmel-8154C-8-bit-AVR-ATmega16A_Datasheet-07/2014
The Atmel
AVR core combines a rich instruction set with 32 general purpose working registers. All the 32
registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be
accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient
while achieving throughputs up to ten times faster than conventional CISC microcontrollers.
The ATmega16A provides the following features: 16Kbytes of In-System Programmable Flash Program
memory with Read-While-Write capabilities; 512bytes EEPROM; 1Kbyte SRAM; 32 general purpose I/O lines,
32 general purpose working registers; a JTAG interface for Boundary-scan; On-chip Debugging support and
programming; three flexible Timer/Counters with compare modes; Internal and External Interrupts; a serial
programmable USART; a byte oriented Two-wire Serial Interface, an 8-channel; 10-bit ADC with optional
differential input stage with programmable gain (TQFP package only); a programmable Watchdog Timer with
Internal Oscillator; an SPI serial port; and six software selectable power saving modes. The Idle mode stops the
CPU while allowing the USART; Two-wire interface; A/D Converter; SRAM; Timer/Counters; SPI port; and
interrupt system to continue functioning. The Power-down mode saves the register contents but freezes the
Oscillator, disabling all other chip functions until the next External Interrupt or Hardware Reset. In Power-save
mode, the Asynchronous Timer continues to run, allowing the user to maintain a timer base while the rest of the
device is sleeping. The ADC Noise Reduction mode stops the CPU and all I/O modules except Asynchronous
Timer and ADC, to minimize switching noise during ADC conversions. In Standby mode, the crystal/resonator
Oscillator is running while the rest of the device is sleeping. This allows very fast start-up combined with low-
power consumption. In Extended Standby mode, both the main Oscillator and the Asynchronous Timer continue
to run.
The device is manufactured using Atmels high density nonvolatile memory technology. The On-chip ISP Flash
allows the program memory to be reprogrammed in-system through an SPI serial interface, by a conventional
nonvolatile memory programmer, or by an On-chip Boot program running on the AVR core. The boot program
can use any interface to download the application program in the Application Flash memory. Software in the
Boot Flash section will continue to run while the Application Flash section is updated, providing true Read-
While-Write operation. By combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a
monolithic chip, the Atmel ATmega16A is a powerful microcontroller that provides a highly-flexible and cost-
effective solution to many embedded control applications.
The ATmega16A is supported with a full suite of program and system development tools including: C compilers,
macro assemblers, program debugger/simulators, in-circuit emulators, and evaluation kits.
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