Datasheet

TCA6424A
www.ti.com SCPS193B –JULY 2010–REVISED SEPTEMBER 2010
ELECTRICAL CHARACTERISTICS
over recommended operating free-air temperature range, V
CCI
= 1.65 V to 5.5 V (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CCP
MIN TYP
(1)
MAX UNIT
Input diode clamp
V
IK
I
I
= –18 mA 1.65 V to 5.5 V –1.2 V
voltage
V
POR
Power-on reset voltage V
I
= V
CCP
or GND, I
O
= 0 1.65 V to 5.5 V 1 1.4 V
1.65 V 1.2
2.3 V 1.8
I
OH
= –8 mA
3 V 2.6
4.5 V 4.1
P-port high-level output
V
OH
V
voltage
1.65 V 1
2.3 V 1.7
I
OH
= –10 mA
3 V 2.5
4.5 V 4.0
1.65 V 0.45
2.3 V 0.25
I
OL
= 8mA
3 V 0.25
4.5 V 0.23
P-port low-level output
V
OL
V
voltage
1.65 V 0.6
2.3 V 0.3
I
OL
= 10 mA
3 V 0.25
4.5 V 0.24
SDA V
OL
= 0.4 V 1.65 V to 5.5 V 3
I
OL
mA
INT V
OL
= 0.4 V 1.65 V to 5.5 V 3 15
SCL, SDA, RESET V
I
= V
CCI
or GND ±0.1
I
I
1.65 V to 5.5 V mA
ADDR V
I
= V
CCP
or GND ±0.1
I
IH
P port V
I
= V
CCP
1 mA
1.65 V to 5.5 V
I
IL
P port V
I
= GND 1 mA
V
I
on SDA and RESET= V
CCI
SDA, or GND,
P port, V
I
on P port and ADDR =
1.65 V to 5.5 V 8 30
ADDR, V
CCP
,
RESET I
O
= 0, I/O = inputs,
f
SCL
= 400 kHz
Operating
mode
V
I
on SDA and RESET= V
CCI
SDA, or GND,
I
CC
P port, V
I
on P port and ADDR =
1.65 V to 5.5 V 1.7 10 mA
(I
CCP +
I
CCI
) ADDR, V
CCP
,
RESET I
O
= 0, I/O = inputs,
f
SCL
= 100 kHz
V
I
on SCL, SDA and RESET =
SCL,
V
CCI
or GND,
SDA,
Standby V
I
on P port and ADDR =
P port, 1.65 V to 5.5 V 0.1 3
mode V
CCP
,
ADDR,
I
O
= 0, I/O = inputs,
RESET
f
SCL
= 0
SCL,SDA One input at V
CCI
– 0.6 V,
Additional
ΔI
CCI
25
RESET Other inputs at V
CCI
or GND
current in
1.65 V to 5.5 V mA
Standby
P port, One input at V
CCP
– 0.6 V,
ΔI
CCP
60
mode
ADDR, Other inputs at V
CCP
or GND
C
I
SCL V
I
= V
CCI
or GND 1.65 V to 5.5 V 6 7 pF
SDA V
IO
= V
CCI
or GND 7 8
C
io
1.65 V to 5.5 V pF
P port V
IO
= V
CCP
or GND 7.5 8.5
(1) Except for I
CC
, all typical values are at nominal supply voltage (V
CCP
= V
CCI
=1.8-V, 2.5-V, 3.3-V, or 5-V V
CC
) and T
A
= 25°C. For I
CC
, all
typical values are at V
CCP
= V
CCI
= 3.3 V and T
A
= 25°C.
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