Datasheet

TCA9554
www.ti.com SCPS233A –NOVEMBER 2011–REVISED MARCH 2012
Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP
(1)
MAX UNIT
V
IK
Input diode clamp voltage I
I
= –18 mA 1.65 V to 5.5 V –1.2 V
V
POR
Power-on reset voltage V
I
= V
CC
or GND, I
O
= 0 1.65 V to 5.5 V 1.5 1.65 V
1.65 V 1.2
2.3 V 1.8
I
OH
= –8 mA 3 V 2.6
4.5 V 3.1
4.75 V 4.1
V
OH
P-port high-level output voltage
(2)
1.65 V 1.1 V
2.3 V 1.7
I
OH
= –10 mA 3 V 2.5
4.5 V 3
4.75 V 4
SDA V
OL
= 0.4 V 1.65 V to 5.5 V 3 8
1.65 V 8 10
2.3 V 8 10
V
OL
= 0.5 V 3 V 8 14
4.5 V 8 17
4.75 V 8 35
I
OL
P port
(3)
mA
1.65 V 10 13
2.3 V 10 13
V
OL
= 0.7 V 3 V 10 19
4.5 V 10 24
4.75 V 10 45
INT V
OL
= 0.4 V 1.65 V to 5.5 V 3 10
SCL, SDA ±1
I
I
V
I
= V
CC
or GND 1.65 V to 5.5 V μA
A2–A0 ±1
I
IH
P port V
I
= V
CC
1.65 V to 5.5 V 1 μA
I
IL
P port V
I
= GND 1.65 V to 5.5 V –100 μA
5.5 V 104 175
3.6 V 50 90
V
I
= V
CC
, I
O
= 0, I/O = inputs,
f
scl
= 400 kHz, No load
2.7 V 20 65
1.95 V 40 45
Operating mode
5.5 V 60 150
3.6 V 15 40
V
I
= V
CC
, I
O
= 0, I/O = inputs,
f
scl
= 100 kHz, No load
2.7 V 8 20
1.95 V 20 20
I
CC
μA
5.5 V 450 700
3.6 V 300 600
V
I
= GND, I
O
= 0, I/O = inputs,
f
scl
= 0 kHz, No load
2.7 V 225 500
1.95 V 225 500
Standby mode
5.5 V 2.8 3
3.6 V 1.6 1.8
V
I
= V
CC
, I
O
= 0, I/O = inputs,
f
scl
= 0 kHz, No load
2.7 V 1.4 1.6
1.95 V 1.4 1.6
(1) All typical values are at nominal supply voltage (2.5-V, 3.3-V, or 5-V V
CC
) and T
A
= 25°C.
(2) The total current sourced by all I/Os must be limited to 85 mA.
(3) Each I/O must be externally limited to a maximum of 25 mA, and the P port (P0 to P7) must be limited to a maximum current of 200 mA.
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