參數(shù)資料
型號(hào)： R5F2L36ACDFP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP64
封裝： 10 X 10 MM, 0.50 MM PITCH, PLASTIC, LQFP-64
文件頁(yè)數(shù)： 37/74頁(yè)
文件大?。?/td> 959K
代理商： R5F2L36ACDFP
43
2588F–AVR–06/2013
ATtiny261/461/861
8.1.2
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 190) will gener-
ate 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
8.1.3
Brown-out Detection
ATtiny261/461/861 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+ =
V
BOT + VHYST/2 and VBOT- = VBOT - VHYST/2.
When the BOD is enabled, and V
CC decreases to a value below the trigger level (VBOT- in Figure
8-5), the Brown-out Reset is immediately activated. When V
CC increases above the trigger level
(V
BOT+ in Figure 8-5), the delay counter starts the MCU after the Time-out period tTOUT 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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R5F2L36ACDFP#30 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH 64LQFP
R5F2L36ACDFP#U1 制造商:Renesas Electronics Corporation 功能描述:
R5F2L36ACDFP#V2 制造商:Renesas Electronics Corporation 功能描述:R8C/L36C 96+4/10 64LQFP 10X10 制造商:Renesas Electronics Corporation 功能描述:R8C/L36C 96+4/10 64LQFP 10X10 -40 TO +85 - Trays 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT 96KB FLASH 64LQFP
R5F2L36ACNFP#30 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH 64LQFP
R5F2L36ACNFP#V2 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH 64LQFP
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