參數(shù)資料
型號: ATTINY13A-SUR
廠商: Atmel
文件頁數(shù): 57/67頁
文件大?。?/td> 0K
描述: IC MCU AVR 1K FLASH 20MHZ 8SOIC
產(chǎn)品培訓模塊: MCU Product Line Introduction
tinyAVR Introduction
標準包裝: 1
系列: AVR® ATtiny
核心處理器: AVR
芯體尺寸: 8-位
速度: 20MHz
外圍設備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數(shù): 6
程序存儲器容量: 1KB(512 x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 64 x 8
RAM 容量: 64 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: 8-SOIC(0.209",5.30mm 寬)
包裝: 標準包裝
其它名稱: ATTINY13A-SURDKR
37
8126F–AVR–05/12
ATtiny13A
8.2.2
External Reset
An External Reset is generated by a low level on the RESET pin if enabled. Reset pulses longer
than the minimum pulse width (See “System and Reset Characteristics” on page 120.) will gen-
erate a reset, even if the clock is not running. Shorter pulses are not guaranteed to generate a
reset. When the applied signal reaches the Reset Threshold Voltage – V
RST – on its positive
edge, the delay counter starts the MCU after the Time-out period – t
TOUT – has expired.
Figure 8-4.
External Reset During Operation
8.2.3
Brown-out Detection
ATtiny13A has an On-chip Brown-out Detection (BOD) circuit for monitoring the V
CC level during
operation by comparing it to a fixed trigger level. The trigger level for the BOD can be selected
by the BODLEVEL fuses. The trigger level has a hysteresis to ensure spike free Brown-out
Detection. The hysteresis on the detection level should be interpreted as V
BOT+ = VBOT + VHYST/2
and V
BOT- = VBOT - VHYST/2.
When the BOD is enabled, and V
CC decreases to a value below the trigger level (VBOT- in Figure
8-5 on page 37), the Brown-out Reset is immediately activated. When V
CC increases above the
trigger level (V
BOT+ in Figure 8-5 on page 37), the delay counter starts the MCU after the Time-
out period t
TOUT has expired.
The BOD circuit will only detect a drop in V
CC if the voltage stays below the trigger level for lon-
ger than t
Figure 8-5.
Brown-out Reset During Operation
CC
VCC
RESET
TIME-OUT
INTERNAL
RESET
VBOT-
VBOT+
tTOUT
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