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8574A Datasheet PDF : 33 Pages
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NXP Semiconductors
PCF8574; PCF8574A
Remote 8-bit I/O expander for I2C-bus with interrupt
13. Static characteristics
Table 9. Static characteristics
VDD = 2.5 V to 6 V; VSS = 0 V; Tamb = 40 C to +85 C; unless otherwise specified.
Symbol Parameter
Conditions
Min
Typ
Supply
VDD
supply voltage
IDD
supply current
Istb
standby current
VPOR
power-on reset voltage
Input SCL; input/output SDA
2.5
-
operating mode; VDD = 6 V; no load;
-
40
VI = VDD or VSS; fSCL = 100 kHz
standby mode; VDD = 6 V; no load;
-
2.5
VI = VDD or VSS
VDD = 6 V; no load; VI = VDD or VSS [1] -
1.3
VIL
LOW-level input voltage
VIH
HIGH-level input voltage
IOL
LOW-level output current
IL
leakage current
Ci
input capacitance
I/Os; P0 to P7
VOL = 0.4 V
VI = VDD or VSS
VI = VSS
0.5 -
0.7VDD -
3
-
1
-
-
-
VIL
VIH
IIHL(max)
LOW-level input voltage
HIGH-level input voltage
maximum allowed input current
through protection diode
VI VDD or VI VSS
0.5 -
0.7VDD -
-
-
IOL
LOW-level output current
VOL = 1 V; VDD = 5 V
IOH
HIGH-level output current
VOH = VSS
Itrt(pu)
transient boosted pull-up current HIGH during acknowledge (see
Figure 8); VOH = VSS; VDD = 2.5 V
Ci
input capacitance
Co
output capacitance
Interrupt INT (see Figure 8)
10
25
30
-
-
1
-
-
-
-
IOL
LOW-level output current
IL
leakage current
Select inputs A0, A1, A2
VOL = 0.4 V
VI = VDD or VSS
1.6
-
1
-
VIL
LOW-level input voltage
VIH
HIGH-level input voltage
ILI
input leakage current
pin at VDD or VSS
0.5 -
0.7VDD -
250 -
Max
Unit
6.0
V
100
A
10
A
2.4
V
+0.3VDD V
VDD + 0.5 V
-
mA
+1
A
7
pF
+0.3VDD V
VDD + 0.5 V
400
A
-
mA
300
A
-
mA
10
pF
10
pF
-
mA
+1
A
+0.3VDD V
VDD + 0.5 V
+250
nA
[1] The power-on reset circuit resets the I2C-bus logic at VDD < VPOR and sets all I/Os to logic 1 (with current source to VDD).
PCF8574_PCF8574A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 27 May 2013
© NXP B.V. 2013. All rights reserved.
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