Datasheet

ELECTRICALCHARACTERISTICS
TCA6408A
www.ti.com .............................................................................................................................................................SCPS192C–APRIL2009–REVISEDJULY2009
overrecommendedoperatingfree-airtemperaturerange,V
CCI
=1.65Vto5.5V(unlessotherwisenoted)
PARAMETERTESTCONDITIONSV
CCP
MINTYP
(1)
MAXUNIT
V
IK
InputdiodeclampvoltageI
I
=–18mA1.65Vto5.5V–1.2V
V
POR
Power-onresetvoltage
(2)
V
I
=V
CCP
orGND,I
O
=01.65Vto5.5V11.4V
1.65V1.2
2.3V1.8
I
OH
=–8mA
3V2.6
4.5V4.1
P-porthigh-leveloutput
V
OH
V
voltage
1.65V1.1
2.3V1.7
I
OH
=–10mA
3V2.5
4.5V4.0
1.65V0.45
2.3V0.25
I
OL
=8mA
3V0.25
4.5V0.2
P-portlow-leveloutput
V
OL
V
voltage
1.65V0.6
2.3V0.3
I
OL
=10mA
3V0.25
4.5V0.2
SDA3
I
OL
V
OL
=0.4V1.65Vto5.5VmA
INT315
SCL,SDA,RESETV
I
=V
CCI
orGND±0.1
I
I
1.65Vto5.5VµA
ADDRV
I
=V
CCP
orGND±0.1
I
IH
PportV
I
=V
CCP
1µA
1.65Vto5.5V
I
IL
PportV
I
=GND1µA
V
I
onSDAandRESET=V
CCI
3.6Vto5.5V1020
SDA,orGND,
2.3Vto3.6V6.515
OperatingPport,V
I
onPportandADDR=
modeADDR,V
CCP
orGND,
1.65Vto2.3V49
RESETI
O
=0,I/O=inputs,
f
SCL
=400kHz
I
CC
µA
(I
CCI
+I
CCP
)
V
I
onSCL,SDAandRESET 3.6Vto5.5V1.57
SCL,SDA,=V
CCI
orGND,
2.3Vto3.6V13.2
StandbyPport,V
I
onPPortandADDR=
modeADDR,V
CCP
orGND,
1.65Vto2.3V0.51.7
RESETI
O
=0,I/O=inputs,
f
SCL
=0
(1)Alltypicalvaluesareatnominalsupplyvoltage(1.8-V,2.5-V,3.3-V,or5-VV
CC
)andT
A
=25°C.
(2)Whenpower(from0V)isappliedtoV
CCP
,aninternalpower-onresetholdstheTCA6408AinaresetconditionuntilV
CCP
hasreached
V
POR
.Atthattime,theresetconditionisreleased,andtheTCA6408AregistersandI
2
C/SMBusstatemachineinitializetotheirdefault
states.Afterthat,V
CCP
mustbeloweredtobelow0.2Vandbackuptotheoperatingvoltageforapower-resetcycle.
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