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參數(shù)資料
| 型號： | MB91F267APMC-GE1 |
| 廠商： | Fujitsu Semiconductor America Inc |
| 文件頁數(shù)： | 32/53頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU FLASH 128KB FLASH 64LQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | FR MB91265A |
| 核心處理器： | FR60Lite RISC |
| 芯體尺寸： | 32-位 |
| 速度： | 33MHz |
| 連通性： | UART/USART |
| 外圍設(shè)備： | DMA，WDT |
| 輸入/輸出數(shù)： | 49 |
| 程序存儲器容量： | 128KB（128K x 8） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 4K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 4 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 11x8/10b |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 105°C |
| 封裝/外殼： | 64-LQFP |
| 包裝： | 托盤 |
| 其它名稱： | 865-1092 |
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40
8183F–AVR–06/12
ATtiny24A/44A/84A
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 176) 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
8.2.3
Brown-out Detection
ATtiny24A/44A/84A 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
8-5 on page 40), the Brown-out Reset is immediately activated. When V
CC increases above the
trigger level (V
BOT+ in Figure 8-5 on page 40), 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
BOD given in “System and Reset Characteristics” on page 176.
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 |
|---|---|
| MB91F267APMC-GS | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontrollers |
| MB91F267APMC-GSE1 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontrollers |
| MB91F267N | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontroller |
| MB91F267NA | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontrollers |
| MB91F267NAPMC-G | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontrollers |
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