参数资料
型号: ATTINY43U-SU
厂商: Atmel
文件页数: 87/158页
文件大小: 0K
描述: MCU AVR 4K FLASH 8MHZ 20-SOIC
产品培训模块: ATtiny43U Overview
MCU Product Line Introduction
tinyAVR Introduction
标准包装: 37
系列: AVR® ATtiny
核心处理器: AVR
芯体尺寸: 8-位
速度: 8MHz
连通性: USI
外围设备: 欠压检测/复位,POR,PWM,温度传感器,WDT
输入/输出数: 16
程序存储器容量: 4KB(2K x 16)
程序存储器类型: 闪存
EEPROM 大小: 64 x 8
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
包装: 管件
产品目录页面: 613 (CN2011-ZH PDF)
配用: ATSTK600-TINYX3U-ND - STK600 SOCKET/ADAPTER TINYX3U
34
8048C–AVR–02/12
ATtiny43U
Bits 4:3 – SM[1:0]: Sleep Mode Select Bits 1 and 0
These bits select between the three available sleep modes as shown in Table 7-2 below.
Bit 2 – BODSE: BOD Sleep Enable
BODSE enables setting of BODS control bit, as explained in BODS bit description. BOD disable
is controlled by a timed sequence.
7.5.2
PRR – Power Reduction Register
Bits 7:5 – PRE[2:0]: Prepared Read Enable
These bits are used for prepared read operations. See sections “Software Control of Boost Con-
Bit 4 – Res: Reserved Bit
This bit is 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 2 – PRTIM0: Power Reduction Timer/Counter0
Writing a logic one to this bit shuts down the Timer/Counter0 module. When the Timer/Counter0
is enabled, operation will continue like before the shutdown.
Bit 1 – PRUSI: Power Reduction USI
Writing a logic one to this bit shuts down the USI by stopping the clock to the module. When
waking up the USI again, the USI should be re-initialized to ensure proper operation.
Bit 0 – PRADC: Power Reduction ADC
Writing a logic one to this bit shuts down the ADC. The ADC must be disabled before shut down.
The analog comparator cannot use the ADC input MUX when the ADC is shut down.
Table 7-2.
Sleep Mode Select
SM1
SM0
Sleep Mode
00
Idle
0
1
ADC Noise Reduction
1
0
Power-down
11
Reserved
Bit
7
654
3
2
10
PRE2
PRE1
PRE0
PRTIM1
PRTIM0
PRUSI
PRADC
PRR
Read/Write
R
R/W
Initial Value
0
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