Datasheet

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ElectricalCharacteristics
PCA9548A
8-CHANNELI
2
CSWITCH
WITHRESET
SCPS143C–OCTOBER2006–REVISEDJUNE2007
V
CC
=2.3Vto3.6V,overrecommendedoperatingfree-airtemperaturerange(unlessotherwisenoted)
PARAMETERTESTCONDITIONSV
CC
MINTYP
(1)
MAXUNIT
V
POR
Power-onresetvoltage
(2)
Noload,V
I
=V
CC
orGNDV
POR
1.62.1V
5V3.6
4.5Vto5.5V2.64.5
3.3V1.9
V
o(sw)
SwitchoutputvoltageV
i(sw)
=V
CC
,I
SWout
=–100µAV
3Vto3.6V1.62.8
2.5V1.5
2.3Vto2.7V1.12
V
OL
=0.4V36
I
OL
SDA2.3Vto5.5VmA
V
OL
=0.6V69
SCL,SDA±1
SC7–SC0,SD7–SD0±1
I
I
V
I
=V
CC
orGND2.3Vto5.5VµA
A2–A0±1
RESET±1
5.5V5080
f
SCL
=400kHzV
I
=V
CC
orGND,I
O
=03.6V2035
2.7V1120
Operatingmode
5.5V930
f
SCL
=100kHzV
I
=V
CC
orGND,I
O
=03.6V615
2.7V48
I
CC
µA
5.5V0.21
LowinputsV
I
=GND,I
O
=03.6V0.11
2.7V0.11
Standbymode
5.5V0.21
HighinputsV
I
=V
CC
,I
O
=03.6V0.11
2.7V0.11
SCLorSDAinputat0.6V,
320
OtherinputsatV
CC
orGND
Supply-current
∆I
CC
SCL,SDA2.3Vto5.5VµA
change
SCLorSDAinputatV
CC
–0.6V,
320
OtherinputsatV
CC
orGND
A2–A045
V
I
=V
CC
orGND
C
i
RESET2.3Vto5.5V45pF
SCLV
I
=V
CC
orGND,SwitchOFF2028
SDA2028
C
io(off)
(3)
V
I
=V
CC
orGND,SwitchOFF2.3Vto5.5VpF
SC7–SC0,SD7–SD05.57.5
4.5Vto5.5V41020
V
O
=0.4V,I
O
=15mA
r
on
Switch-onresistance3Vto3.6V51230Ω
V
O
=0.4V,I
O
=10mA2.3Vto2.7V71545
(1)Alltypicalvaluesareatnominalsupplyvoltage(2.5-V,3.3-V,or5-VV
CC
),T
A
=25°C.
(2)Thepower-onresetcircuitresetstheI
2
CbuslogicwithV
CC
<V
POR
.V
CC
mustbeloweredto0.2Vtoresetthedevice.
(3)C
io(ON)
dependsoninternalcapacitanceandexternalcapacitanceaddedtotheSCnlineswhenchannels(s)areON.
11
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