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參數(shù)資料
| 型號(hào)： | SC28L92A1BS,557 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 29/73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(dòng)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(dòng)流量控制功能： | 是 |
| 帶故障啟動(dòng)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 |
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35
2552K–AVR–04/11
ATmega329/3290/649/6490
9.
Power Management and Sleep Modes
Sleep modes enable the application to shut down unused modules in the MCU, thereby saving
power. The AVR provides various sleep modes allowing the user to tailor the power consump-
tion to the application’s requirements.
To enter any of the five sleep modes, the SE bit in SMCR must be written to logic one and a
SLEEP instruction must be executed, see “SMCR – Sleep Mode Control Register” on page 39.
The SM2, SM1, and SM0 bits in the SMCR Register select which sleep mode (Idle, ADC Noise
Reduction, Power-down, Power-save, or Standby) will be activated by the SLEEP instruction.
See Table 9-1 on page 35 for a summary. If an enabled interrupt occurs while the MCU is in a
sleep mode, the MCU wakes up. The MCU is then halted for four cycles in addition to the start-
up time, executes the interrupt routine, and resumes execution from the instruction following
SLEEP. The contents of the Register File and SRAM are unaltered when the device wakes up
from sleep. If a reset occurs during sleep mode, the MCU wakes up and executes from the
Reset Vector.
Figure 8-1 on page 26 presents the different clock systems in the ATmega329/3290/649/6490,
and their distribution. The figure is helpful in selecting an appropriate sleep mode.
Notes:
1. Only recommended with external crystal or resonator selected as clock source.
2. If either LCD controller or Timer/Counter2 is running in asynchronous mode.
3. For INT0, only level interrupt
Table 9-1.
Active Clock Domains and Wake-up Sources in the Different Sleep Modes.
Active Clock Domains
Oscillators
Wake-up Sources
Sleep
Mode
cl
k
CP
U
cl
k
FLA
SH
cl
k
IO
cl
k
AD
C
cl
k
AS
Y
Main
Cloc
k
Sour
ce
Enab
led
Timer
Os
c
Enab
led
INT0
an
d
P
in
Chang
e
USI
Sta
rt
Cond
iti
o
n
LCD
Cont
ro
ller
Timer2
SPM/EE
P
R
O
M
Re
ad
y
AD
C
Oth
e
rI/O
Idle
X
XX
X
ADC
Noise
Reduction
X
X(3)
XX(2)
X(2)
XX
Power-
down
X(3)
X
Power-
save
X
X(3)
XX
X
Standby(1)
XX(3)
X
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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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