8574A View Datasheet(PDF) - Philips Electronics
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Description
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8574A Datasheet PDF : 24 Pages
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Philips Semiconductors
Remote 8-bit I/O expander for I2C-bus
Product specification
PCF8574
8 LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
SYMBOL
VDD
VI
II
IO
IDD
ISS
Ptot
PO
Tstg
Tamb
PARAMETER
supply voltage
input voltage
DC input current
DC output current
supply current
supply current
total power dissipation
power dissipation per output
storage temperature
ambient temperature
MIN.
−0.5
VSS − 0.5
−
−
−
−
−
−
−65
−40
MAX.
+7.0
VDD + 0.5
±20
±25
±100
±100
400
100
+150
+85
UNIT
V
V
mA
mA
mA
mA
mW
mW
°C
°C
9 HANDLING
Inputs and outputs are protected against electrostatic discharge in normal handling. However it is good practice to take
normal precautions appropriate to handling MOS devices (see “Handling MOS devices”).
10 DC CHARACTERISTICS
VDD = 2.5 to 6 V; VSS = 0 V; Tamb = −40 to +85 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
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; VI = VDD or VSS;
fSCL = 100 kHz
standby mode; VDD = 6 V; −
no load; VI = VDD or VSS
VDD = 6 V; no load;
−
VI = VDD or VSS; note 1
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
−0.5
0.7VDD
3
−1
−
TYP.
MAX.
UNIT
−
6.0
V
40
100
µA
2.5
10
µA
1.3
2.4
V
−
+0.3VDD V
−
VDD + 0.5 V
−
−
mA
−
+1
µA
−
7
pF
2002 Nov 22
14
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