參數(shù)資料
型號： SC28L92A1B,528
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： 1,500
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： 44-QFP
供應(yīng)商設(shè)備封裝： 44-PQFP（10x10）
包裝： 帶卷 (TR)
其它名稱： 935263294528
SC28L92A1B-T
SC28L92A1B-T-ND
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
XX(2)
XX
Power-
down
X
Power-
save
X
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
SC28L92A1B557 制造商:NXP Semiconductors 功能描述:IC UART W/FIFO DUAL 44PQFP 制造商:NXP Semiconductors 功能描述:IC DUAL UART FIFO 1MBPS 5.
SC28L92A1BS 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,528 功能描述:UART 接口集成電路 3V-5V 1CH UART 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,551 功能描述:UART 接口集成電路 3V-5V 1CH UART 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,557 功能描述:UART 接口集成電路 3V-5V 1CH UART 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
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