参数资料
型号: ATTINY2313A-MUR
厂商: Atmel
文件页数: 104/172页
文件大小: 0K
描述: MCU AVR 2K FLASH 20MHZ 20QFN
产品培训模块: tinyAVR Introduction
标准包装: 6,000
系列: AVR® ATtiny
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: 18
程序存储器容量: 2KB(1K x 16)
程序存储器类型: 闪存
EEPROM 大小: 128 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 20-WFQFN 裸露焊盘
包装: 带卷 (TR)
37
8246B–AVR–09/11
ATtiny2313A/4313
For analog input pins, the digital input buffer should be disabled at all times. An analog signal
level close to V
CC/2 on an input pin can cause significant current even in active mode. Digital
input buffers can be disabled by writing to the Digital Input Disable Register (DIDR). See “DIDR
7.5
Register Description
7.5.1
MCUCR – MCU Control Register
The Sleep Mode Control Register contains control bits for power management.
Bits 6, 4 – SM1..0: Sleep Mode Select Bits 1 and 0
These bits select between the four available sleep modes as shown in Table 7-2.
Note:
Standby mode is only recommended for use with external crystals or resonators.
Bit 5 – SE: Sleep Enable
The SE bit must be written to logic one to make the MCU enter the sleep mode when the SLEEP
instruction is executed. To avoid the MCU entering the sleep mode unless it is the programmer’s
purpose, it is recommended to write the Sleep Enable (SE) bit to one just before the execution of
the SLEEP instruction and to clear it immediately after waking up.
7.5.2
PRR – Power Reduction Register
The Power Reduction Register provides a method to reduce power consumption by allowing
peripheral clock signals to be disabled.
Bits 7..4 – Res: Reserved Bits
These bits are reserved and will always read zero.
Bit 3 – PRTIM1: Power Reduction Timer/Counter1
Writing a logic one to this bit shuts down the Timer/Counter1 module. When the Timer/Counter1
is enabled, operation will continue like before the shutdown.
Bit
765
4321
0
PUD
SM1
SE
SM0
ISC11
ISC10
ISC01
ISC00
MCUCR
Read/Write
R/W
Initial Value
000
0000
0
Table 7-2.
Sleep Mode Select
SM1
SM0
Sleep Mode
00
Idle
0
1
Power-down
1
0
Standby
1
Power-down
Bit
7
654
3
2
1
0
PRTIM1
PRTIM0
PRUSI
PRUSART
PRR
Read/Write
R
R/W
Initial Value
0
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