TCA9555 Datasheet, PDF (14/32 Pages) Texas Instruments – LOW VOLTAGE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS

TCA9555
SCPS200A – JULY 2009 – REVISED JULY 2009 .............................................................................................................................................................. www.ti.com
ELECTRICAL CHARACTERISTICS
over recommended operating free-air temperature range (unless otherwise noted)
V_IK
V_POR
V_OH
I_OL
I_I
I_IH
I_IL
I_CC
ΔI_CC
C_I
C_io
PARAMETER
Input diode clamp voltage
Power-on reset voltage
P-port high-level output voltage⁽²⁾
SDA
P port⁽³⁾
INT
SCL, SDA
A2–A0
P port
P port
Operating mode
Low inputs
Standby mode
High inputs
Additional current in standby
mode
SCL
SDA
P port
TEST CONDITIONS
I_I = –18 mA
V_I = V_CC or GND, I_O = 0
I_OH = –8 mA
I_OH = –10 mA
V_OL = 0.4 V
V_OL = 0.5 V
V_OL = 0.7 V
V_OL = 0.4 V
V_CC
1.65 V to 5.5 V
1.65 V to 5.5 V
1.65 V
2.3 V
3V
4.75 V
1.65 V
2.3 V
3V
4.75 V
1.65 V to 5.5 V
V_I = V_CC or GND
1.65 V to 5.5 V
V_I = V_CC
V_I = GND
1.65 V to 5.5 V
1.65 V to 5.5 V
5.5 V
V_I = V_CC or GND, I_O = 0,
I/O = inputs, f_SCL = 400 kHz, No load
3.6 V
2.7 V
1.95 V
5.5 V
V_I = GND, I_O = 0, I/O = inputs,
f_SCL = 0 kHz, No load
3.6 V
2.7 V
1.95 V
5.5 V
V_I = V_CC, I_O = 0, I/O = inputs,
f_SCL = 0 kHz, No load
3.6 V
2.7 V
1.95 V
One input at V_CC – 0.6 V,
Other inputs at V_CC or GND
V_I = V_CC or GND
1.65 V to 5.5 V
1.65 V to 5.5 V
V_IO = V_CC or GND
1.65 V to 5.5 V
MIN
–1.2
1.2
1.8
2.6
4.1
1.8
1.7
2.5
4
3
8
10
3
TYP ⁽¹⁾
1.5
20
24
100
30
20
10
1.1
0.7
0.5
0.3
2.5
2
1.5
1.2
3
3
3.7
MAX
1.65
UNIT
V
V
V
mA
±1
µA
±1
1 µA
–100 µA
200
75
µA
50
45
1.5
1.3
mA
1
0.9
3
2.6
µA
2.5
2.3
1.5 mA
7 pF
7
pF
9.5
(1) All typical values are at nominal supply voltage (1.8-V, 2.5-V, 3.3-V, or 5-V V_CC) and T_A = 25°C.
(2) Each I/O must be externally limited to a maximum of 25 mA, and each octal (P07–P00 and P17–P10) must be limited to a maximum
current of 100 mA, for a device total of 200 mA.
(3) The total current sourced by all I/Os must be limited to 160 mA (80 mA for P07–P00 and 80 mA for P17–P10).
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