参数资料
| 型号： | ATMEGA164A-MUR |
| 厂商： | Atmel |
| 文件页数： | 101/160页 |
| 文件大小： | 0K |
| 描述： | IC MCU AVR 16K 20MHZ 44VQFN |
| 产品培训模块： | MCU Product Line Introduction megaAVR Introduction |
| 标准包装： | 4,000 |
| 系列： | AVR® ATmega |
| 核心处理器： | AVR |
| 芯体尺寸： | 8-位 |
| 速度： | 20MHz |
| 连通性： | I²C，SPI，UART/USART |
| 外围设备： | 欠压检测/复位，POR，PWM，WDT |
| 输入/输出数： | 32 |
| 程序存储器容量： | 16KB（8K x 16） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 512 x 8 |
| RAM 容量： | 1K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 1.8 V ~ 5.5 V |
| 数据转换器： | A/D 8x10b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 44-VFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 其它名称： | ATMEGA164A-MUR-ND |
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45
8272E–AVR–04/2013
ATmega164A/PA/324A/PA/644A/PA/1284/P
10.10 Power Reduction Register
The Power Reduction Register(PRR), see ”PRR0 – Power Reduction Register 0” on page 48,
provides a method to stop the clock to individual peripherals to reduce power consumption. The
current state of the peripheral is frozen and the I/O registers can not be read or written.
Resources used by the peripheral when stopping the clock will remain occupied, hence the
peripheral should in most cases be disabled before stopping the clock. Waking up a peripheral,
which is done by clearing the bit in PRR, puts the peripheral in the same state as before
shutdown.
Peripheral shutdown can be used in Idle mode and Active mode to significantly reduce the over-
all power consumption. In all other sleep modes, the clock is already stopped.
10.11 Minimizing Power Consumption
There are several issues to consider when trying to minimize the power consumption in an AVR
controlled system. In general, sleep modes should be used as much as possible, and the sleep
mode should be selected so that as few as possible of the device’s functions are operating. All
functions not needed should be disabled. In particular, the following modules may need special
consideration when trying to achieve the lowest possible power consumption.
10.11.1
Analog to Digital Converter
If enabled, the ADC will be enabled in all sleep modes. To save power, the ADC should be dis-
abled before entering any sleep mode. When the ADC is turned off and on again, the next
conversion will be an extended conversion. Refer to ”ADC - Analog-to-digital converter” on page
244 for details on ADC operation.
10.11.2
Analog Comparator
When entering Idle mode, the Analog Comparator should be disabled if not used. When entering
ADC Noise Reduction mode, the Analog Comparator should be disabled. In other sleep modes,
the Analog Comparator is automatically disabled. However, if the Analog Comparator is set up
to use the Internal Voltage Reference as input, the Analog Comparator should be disabled in all
sleep modes. Otherwise, the Internal Voltage Reference will be enabled, independent of sleep
mode. Refer to ”AC - Analog Comparator” on page 241 for details on how to configure the Ana-
log Comparator.
10.11.3
Brown-out Detector
If the Brown-out Detector is not needed by the application, this module should be turned off. If
the Brown-out Detector is enabled by the BODLEVEL Fuses, it will be enabled in all sleep
modes, and hence, always consume power. In the deeper sleep modes, this will contribute sig-
nificantly to the total current consumption. Refer to ”Brown-out Detection” on page 53 for details
on how to configure the Brown-out Detector.
10.11.4
Internal Voltage Reference
The Internal Voltage Reference will be enabled when needed by the Brown-out Detection, the
Analog Comparator or the ADC. If these modules are disabled as described in the sections
above, the internal voltage reference will be disabled and it will not be consuming power. When
turned on again, the user must allow the reference to start up before the output is used. If the
reference is kept on in sleep mode, the output can be used immediately. Refer to ”Internal Volt-
age Reference” on page 54 for details on the start-up time.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ATMEGA164A-PU | 功能描述:8位微控制器 -MCU AVR 16KB FL 512B EE 1KB SRAM-20 MHz RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| ATMEGA164P | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash |
| ATMEGA164P_07 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash |
| ATMEGA164P_0702 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash |
| ATMEGA164P_08 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash |
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