参数资料
| 型号： | ATMEGA328P-15AZ |
| 厂商： | Atmel |
| 文件页数： | 31/83页 |
| 文件大小： | 0K |
| 描述： | MCU AVR 32K FLASH 15MHZ 32-TQFP |
| 产品培训模块： | megaAVR Introduction |
| 标准包装： | 1 |
| 系列： | AVR® ATmega |
| 核心处理器： | AVR |
| 芯体尺寸： | 8-位 |
| 速度： | 16MHz |
| 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： | 23 |
| 程序存储器容量： | 32KB（16K x 16） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 1K x 8 |
| RAM 容量： | 2K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 5.5 V |
| 数据转换器： | A/D 8x10b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 32-TQFP |
| 包装： | 剪切带 (CT) |
| 其它名称： | ATMEGA328P-15AZCT |
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PIC12(L)F1822/PIC16(L)F1823
DS41413C-page 196
2010-2012 Microchip Technology Inc.
23.1
DSM Operation
The DSM module can be enabled by setting the MDEN
bit in the MDCON register. Clearing the MDEN bit in the
MDCON register, disables the DSM module by auto-
matically switching the carrier high and carrier low sig-
nals to the VSS signal source. The modulator signal
source is also switched to the MDBIT in the MDCON
register. This not only assures that the DSM module is
inactive, but that it is also consuming the least amount
of current.
The values used to select the carrier high, carrier low,
and modulator sources held by the Modulation Source,
Modulation High Carrier, and Modulation Low Carrier
control registers are not affected when the MDEN bit is
cleared and the DSM module is disabled. The values
inside these registers remain unchanged while the
DSM is inactive. The sources for the carrier high, car-
rier low and modulator signals will once again be
selected when the MDEN bit is set and the DSM
module is again enabled and active.
The modulated output signal can be disabled without
shutting down the DSM module. The DSM module will
remain active and continue to mix signals, but the out-
put value will not be sent to the MDOUT pin. During the
time that the output is disabled, the MDOUT pin will
remain low. The modulated output can be disabled by
clearing the MDOE bit in the MDCON register.
23.2
Modulator Signal Sources
The modulator signal can be supplied from the
following sources:
CCP1 Signal
MSSP1 SDO1 Signal (SPI mode Only)
Comparator C1 Signal
Comparator C2 Signal (PIC16(L)F1823 only)
EUSART TX Signal
External Signal on MDMIN pin
MDBIT bit in the MDCON register
The modulator signal is selected by configuring the
MDMS <3:0> bits in the MDSRC register.
23.3
Carrier Signal Sources
The carrier high signal and carrier low signal can be
supplied from the following sources:
CCP1 Signal
Reference Clock Module Signal
External Signal on MDCIN1 pin
External Signal on MDCIN2 pin
VSS
The carrier high signal is selected by configuring the
MDCH <3:0> bits in the MDCARH register. The carrier
low signal is selected by configuring the MDCL <3:0>
bits in the MDCARL register.
23.4
Carrier Synchronization
During the time when the DSM switches between car-
rier high and carrier low signal sources, the carrier data
in the modulated output signal can become truncated.
To prevent this, the carrier signal can be synchronized
to the modulator signal. When synchronization is
enabled, the carrier pulse that is being mixed at the
time of the transition is allowed to transition low before
the DSM switches over to the next carrier source.
Synchronization is enabled separately for the carrier
high and carrier low signal sources. Synchronization for
the carrier high signal can be enabled by setting the
MDCHSYNC bit in the MDCARH register. Synchroniza-
tion for the carrier low signal can be enabled by setting
the MDCLSYNC bit in the MDCARL register.
Figure 23-1 through Figure 23-5 show timing diagrams
of using various synchronization methods.
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| ATMEGA328P-15MZ | 功能描述:8位微控制器 -MCU 32KB In-system Flash 20MHz 1.8V-5.5V 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 |
| ATMEGA328P-20AU | 制造商:Atmel Corporation 功能描述:MCU 8-bit ATmega AVR RISC 32KB Flash 3.3V/5V 32-Pin TQFP |
| ATMEGA328P20MU | 制造商:Atmel Corporation 功能描述:MCU 8-Bit ATmega AVR RISC 32KB Flash 3.3V/5V 32-Pin MLF |
| ATMEGA328P-AN | 功能描述:8位微控制器 -MCU AVR 32K FLSH 2K SRAM 1KB EE-20 MHZ 105C 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 |
| ATMEGA328P-ANR | 功能描述:8位微控制器 -MCU AVR 32K FLSH 2K SRAM 1KB EE-20 MHZ 105C 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 |
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