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PCA9546APWR 数据表(PDF) 9 Page - Texas Instruments

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部件名 PCA9546APWR
功能描述  4-CHANNEL I2C AND SMBus SWITCH WITH RESET FUNCTION
PDF  29 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

PCA9546APWR 数据表(HTML) 9 Page - Texas Instruments

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Electrical Characteristics
PCA9546A
4-CHANNEL I2C AND SMBus SWITCH
WITH RESET FUNCTION
SCPS148E – OCTOBER 2005 – REVISED JANUARY 2008
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN TYP(1)
MAX
UNIT
VPOR
Power-on reset voltage(2)
No load,
VI = VCC or GND
VPOR
1.6
2.1
V
5 V
3.6
4.5 V to 5.5 V
2.6
4.5
3.3 V
1.9
Vpass
Switch output voltage
VSWin = VCC,
ISWout = –100 µA
V
3 V to 3.6 V
1.6
2.8
2.5 V
1.5
2.3 V to 2.7 V
1.1
2
VOL = 0.4 V
3
7
IOL
SCL, SDA
2.3 V to 5.5 V
mA
VOL = 0.6 V
6
10
SCL, SDA
±1
SC3–SC0, SD3–SD0
±1
II
VI = VCC or GND
2.3 V to 5.5 V
µA
A2–A0
±1
RESET
±1
5.5 V
3
12
Operating mode
fSCL = 100 kHz VI = VCC or GND,
IO = 0
3.6 V
3
11
2.7 V
3
10
5.5 V
0.3
1
ICC
Low inputs
VI = GND,
IO = 0
3.6 V
0.1
1
µA
2.7 V
0.1
1
Standby mode
5.5 V
0.3
1
High inputs
VI = VCC,
IO = 0
3.6 V
0.1
1
2.7 V
0.1
1
SCL or SDA input at 0.6 V,
8
15
Other inputs at VCC or GND
Supply-current
ΔICC
SCL, SDA
µA
change
SCL or SDA input at VCC – 0.6 V,
2.3 V to 5.5 V
8
15
Other inputs at VCC or GND
A2–A0
4.5
6
Ci
VI = VCC or GND
2.3 V to 5.5 V
pF
RESET
4.5
5.5
SCL, SDA
15
19
Cio(OFF)
(3)
VI = VCC or GND,
Switch OFF
2.3 V to 5.5 V
pF
SC3–SC0, SD3–SD0
6
8
4.5 V to 5.5 V
4
9
16
VO = 0.4 V,
IO = 15 mA
RON
Switch on-state resistance
3 V to 3.6 V
5
11
20
Ω
VO = 0.4 V,
IO = 10 mA
2.3 V to 2.7 V
7
16
45
(1)
All typical values are at nominal supply voltage (2.5-V, 3.3-V, or 5-V VCC), TA = 25°C.
(2)
The power-on reset circuit resets the I2C bus logic with VCC < VPOR. VCC must be lowered to 0.2 V to reset the device.
(3)
Cio(ON) depends on internal capacitance and external capacitance added to the SCn lines when channels(s) are ON.
Copyright © 2005–2008, Texas Instruments Incorporated
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Product Folder Link(s): PCA9546A



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