參數(shù)資料
型號： SC28L92A1BS,557
廠商： NXP Semiconductors
文件頁數(shù)： 40/73頁
文件大?。?/td> 0K
描述： IC UART DUAL W/FIFO 44PQFP
標(biāo)準(zhǔn)包裝： 2,450
系列： IMPACT
特點(diǎn)： 故障啟動位檢測
通道數(shù)： 2，DUART
FIFO's： 16 字節(jié)
電源電壓： 3.3V，5V
帶自動流量控制功能： 是
帶故障啟動位檢測功能： 是
帶調(diào)制解調(diào)器控制功能： 是
帶CMOS： 是
安裝類型： 表面貼裝
封裝/外殼： 48-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 48-HVQFN EP（6x6）
包裝： 托盤
其它名稱： 935281063557
SC28L92A1BS
SC28L92A1BS-ND
45
2552K–AVR–04/11
ATmega329/3290/649/6490
ADC is used. To reduce power consumption in Power-down mode, the user can avoid the three
conditions above to ensure that the reference is turned off before entering Power-down mode.
10.8
Watchdog Timer
The Watchdog Timer is clocked from a separate On-chip Oscillator which runs at 1 MHz. This is
the typical value at V
CC = 5V. See characterization data for typical values at other VCC levels. By
controlling the Watchdog Timer prescaler, the Watchdog Reset interval can be adjusted as
shown in Table 10-2 on page 46. The WDR – Watchdog Reset – instruction resets the Watch-
dog Timer. The Watchdog Timer is also reset when it is disabled and when a Chip Reset occurs.
Eight different clock cycle periods can be selected to determine the reset period. If the reset
period expires without another Watchdog Reset, the ATmega329/3290/649/6490 resets and
executes from the Reset Vector. For timing details on the Watchdog Reset, refer to Table 10-2
To prevent unintentional disabling of the Watchdog or unintentional change of time-out period,
two different safety levels are selected by the fuse WDTON as shown in Table 10-1. Refer to
details.
Figure 10-7. Watchdog Timer
Table 10-1.
WDT Configuration as a Function of the Fuse Settings of WDTON
WDTON
Safety
Level
WDT Initial
State
How to Disable the
WDT
How to Change
Time-out
Unprogrammed
1
Disabled
Timed sequence
Programmed
2
Enabled
Always enabled
Timed sequence
WATCHDOG
OSCILLATOR
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC28L92A1BS-F 功能描述:UART 接口集成電路 3V-5V 1CH UART INTEL/MOT INTRF RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC28L92A1BS-S 功能描述:UART 接口集成電路 3V-5V 1CH UART INTEL/MOT INTRF RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC28P-1GREEN 制造商:Thomas & Betts 功能描述:ID TAG GREEN
SC28P-1RED 制造商:Thomas & Betts 功能描述:ID TAG RED
SC28P-1YELLOW 制造商:Thomas & Betts 功能描述:ID TAG YELLOW
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