参数资料
型号: BD4154FV-E2
厂商: Rohm Semiconductor
文件页数: 8/18页
文件大小: 0K
描述: IC POWER SWITCH SSOP-B20
标准包装: 2,500
应用: PCMCIA,ExpressCard?
电流 - 电源: 250µA
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-SSOP-B
包装: 带卷 (TR)
BD4154FV
● Timing Chart
Power ON/OFF Status of ExpressCard TM
Technical Note
System Status
Primary Auxiliary
ExpressCard TM Module Status
Power Switch Status
Primary(+3.3V and +1.5V) Auxiliary(3.3V Aux)
OFF
ON
ON
OFF
ON
ON
Don’t care
De-asserted
Asserted
De-asserted
Asserted Before This
Asserted After This
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
ExpressCard
SYSR=H ? L
CP#=H
TM
SYSR=H
States Transition Diagram
SYSR=L
CP#=L → H
SYSR=L
CP#=H ? L
V3AUX=OFF
V15=V3=OFF
CP#=H → L
SYSR=L → H
CP#=L
V3AUX=ON
V15=V3=ON
SYSR=H
CP#=L → H
SYSR=H → L
CP#=L
SYSR=H → L
CP#=L
SYSR=L → H
CP#=L
V3AUX=ON
V15=V3=OFF
SYSR=L
CP#=L
?
SYSR=H
CP#=H
System Status
Card Status
Stand-by Status
ON Status
From ON to Stand-by Status
From Stand-by to ON Status
:SYSR=L
:SYSR=H
:SYSR=H → L
:SYSR=L → H
Card Asserted Status
Card De-asserted Status
From De-asserted to Asserted Status
From Asserted to De-asserted Status
:CP#=L
:CP#=H
:CP#=H → L
:CP#=L → H
www.rohm.com
? 2010 ROHM Co., Ltd. All rights reserved.
8/15
2010.04 - Rev.B
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