9557 查看數據表（PDF） - NXP Semiconductors.
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9557 Datasheet PDF : 26 Pages
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NXP Semiconductors
PCA9557
8-bit I2C-bus and SMBus I/O port with reset
11. Static characteristics
Table 10. Static characteristics
VDD = 2.3 V to 5.5 V; VSS = 0 V; Tamb = −40 °C to +85 °C; unless otherwise specified.
Symbol Parameter
Conditions
Min
Supplies
VDD
supply voltage
2.3
IDD
supply current
operating mode; VDD = 5.5 V;
-
no load; fSCL = 100 kHz
IstbL
LOW-level standby current standby mode; VDD = 5.5 V;
-
no load; VI = VSS; fSCL = 0 kHz;
I/O = inputs
IstbH
HIGH-level standby current standby mode; VDD = 5.5 V;
-
no load; VI = VDD; fSCL = 0 kHz;
I/O = inputs
∆Istb
additional standby current standby mode; VDD = 5.5 V;
-
every LED I/O at VI = 4.3 V;
fSCL = 0 kHz
VPOR
power-on reset voltage
no load; VI = VDD or VSS
[1] -
Input SCL; input/output SDA
VIL
LOW-level input voltage
VIH
HIGH-level input voltage
IOL
LOW-level output current VOL = 0.4 V
IL
leakage current
VI = VDD or VSS
Ci
input capacitance
VI = VSS
I/Os
−0.5
0.7VDD
3
−1
-
VIL
LOW-level input voltage
VIH
HIGH-level input voltage
IOL
LOW-level output current
IOH
HIGH-level output current
ILI
input leakage current
Ci
input capacitance
Co
output capacitance
Select inputs A0, A1, A2 and RESET
except pin IO0; VOH = 2.4 V
pin IO0; VOH = 4.6 V
pin IO0; VOH = 3.3 V
VDD = 5.5 V; VI = VSS
−0.5
2.0
[2] 8
[3] 4
-
-
-
-
-
VIL
LOW-level input voltage
−0.5
VIH
HIGH-level input voltage
2.0
ILI
input leakage current
−1
[1] VDD must be lowered to 0.2 V in order to reset part.
[2] The total amount sunk by all I/Os must be limited to 100 mA and 25 mA per bit.
[3] The total current sourced by all I/Os must be limited to 85 mA and 20 mA per bit.
Typ
-
19
0.25
0.25
0.8
1.65
-
-
-
-
6
-
-
10
-
-
-
-
3.7
3.7
-
-
-
Max
Unit
5.5
V
25
µA
1
µA
1
µA
1
mA
2.1
V
+0.3VDD V
5.5
V
-
mA
+1
µA
10
pF
+0.8
V
5.5
V
-
mA
-
mA
1
µA
1
µA
−100
µA
5
pF
5
pF
+0.8
V
5.5
V
+1
µA
PCA9557
Product data sheet
Rev. 06 — 11 June 2008
© NXP B.V. 2008. All rights reserved.
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