PCA9557 Datasheet, PDF (12/36 Pages) NXP Semiconductors – 8-bit I2C and SMBus I/0 port with reset

PCA9557
SCPS133I – DECEMBER 2005 – REVISED JUNE 2008.................................................................................................................................................... www.ti.com
ELECTRICAL CHARACTERISTICS
over recommended operating free-air temperature range (unless otherwise noted)
V_IK
V_POR
PARAMETER
Input diode clamp voltage
Power-on reset voltage
TEST CONDITIONS
I_I = –18 mA
V_I = V_CC or GND, I_O = 0
I_OH = –8 mA
V_OH
P-port high-level output voltage⁽²⁾
I_OH = –10 mA
SDA
I_OL
P port⁽³⁾
P port, except for P0⁽³⁾
I_OH
P0 ⁽³⁾
SCL, SDA
I_I
A2–A0, RESET
I_IH
P port
I_IL
P port
Operating mode
I_CC
V_OL = 0.4 V
V_OL = 0.5 V
V_OL = 0.55 V
V_OL = 0.7 V
V_OH = 2.3 V
V_OH = 4.6 V
V_OH = 3.3 V
V_I = V_CC or GND
V_I = V_CC
V_I = GND
V_I = V_CC or GND, I_O = 0,
I/O = inputs, f_SCL = 400 kHz
V_I = V_CC or GND, I_O = 0,
I/O = inputs, f_SCL = 100 kHz
ΔI_CC
C_I
C_io
Standby mode
V_I = V_CC or GND, I_O = 0,
I/O = inputs, f_SCL = 0 kHz
Additional current in Standby mode
SCL
SDA
P port
One input at V_CC – 0.6 V,
Other inputs at V_CC or GND
Every LED I/O at V_I = 4.3 V,
f_SCL = 0 kHz
V_I = V_CC or GND
V_IO = V_CC or GND
V_CC
2.3 V to 5.5 V
V_POR
2.3 V
3V
4.5 V
4.75 V
2.3 V
3V
4.5 V
4.75 V
2.3 V to 5.5 V
2.3 V to 5.5 V
2.3 V to 5.5 V
4.6 V to 5.5 V
3.3 V to 5.5 V
2.3 V to 5.5 V
2.3 V to 5.5 V
2.3 V to 5.5 V
5.5 V
3.6 V
2.7 V
5.5 V
3.6 V
2.7 V
5.5 V
3.6 V
2.7 V
2.3 V to 5.5 V
5.5 V
2.3 V to 5.5 V
2.3 V to 5.5 V
MIN TYP⁽¹⁾
–1.2
1.65
1.8
2.6
3
4.1
1.5
2.5
3
4
3
8
20
8
20
10
24
–4
19
12
8
1.5
1
0.6
0.25
0.25
0.2
4
5.5
7.5
MAX
2.1
UNIT
V
V
V
mA
mA
1
µA
1
±1
µA
±1
1 µA
1 µA
25
22
20
5
4 µA
3
1
0.9
0.8
0.2
mA
0.4
6 pF
8
pF
9.5
(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 per bit.
(3) Each I/O must be externally limited to a maximum of 25 mA, and the P port (P7–P0) must be limited to a maximum current of 200 mA.
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