BAT
參數(shù)資料
型號: ATTINY43U-SU
廠商: Atmel
文件頁數(shù): 91/158頁
文件大?。?/td> 0K
描述: MCU AVR 4K FLASH 8MHZ 20-SOIC
產(chǎn)品培訓(xùn)模塊: ATtiny43U Overview
MCU Product Line Introduction
tinyAVR Introduction
標(biāo)準(zhǔn)包裝: 37
系列: AVR® ATtiny
核心處理器: AVR
芯體尺寸: 8-位
速度: 8MHz
連通性: USI
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,溫度傳感器,WDT
輸入/輸出數(shù): 16
程序存儲器容量: 4KB(2K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 64 x 8
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
包裝: 管件
產(chǎn)品目錄頁面: 613 (CN2011-ZH PDF)
配用: ATSTK600-TINYX3U-ND - STK600 SOCKET/ADAPTER TINYX3U
38
8048C–AVR–02/12
ATtiny43U
Figure 8-4.
Input and Output Voltages of Boost Converter.
When input voltage V
BAT falls below VSTOP the converter enters Stop Mode and output voltage
V
CC begins to fall. When converter output voltage, i.e. the supply voltage of the microcontroller,
falls below V
POT the MCU will go into reset.
Figure 8-5 illustrates how the boost converter output changes with load current. As converter
output voltage rises above the power-on threshold the microcontroller is brought on-line and cur-
rent consumption steps up to a level sufficiently high for the converter to remain in Active
Regulated Mode of operation.
Figure 8-5.
Output Voltage vs. Load Current of Boost Converter.
Note:
The figure is not to scale. Typically, the switching time (rising voltage) is measured in hundreds of
microseconds and idle time (falling voltage) is measured in seconds.
VCC
t
VPOT
VSTART
VBOOST
VSTOP
VBAT
STOP
ACTIVE
RESET
ACTIVE
RESET
CONVERTER:
MCU CORE:
VCC
t
ILOAD
V/A
VCCMIN
VCCMAX
LOW CURRENT MODE
ACTIVE, REGULATED
MODE:
VCCNOM
IMS
REGULATED
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