Philips Semiconductors
8-bit I2C and SMBus I/0 port with reset
Product data
PCA9557
ABSOLUTE MAXIMUM RATINGS
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
VDD
VI
II
IIHL(max)
DC supply voltage
DC input voltage
DC input current
Maximum allowed input current through protection
diode (I/O1 – I/O7)
VI ≥ VDD or VI ≤ VSS
VI/O
VI/O0
DC voltage on an I/O as an input other than I/O0
DC voltage on I/O0 as an input
II/O0
DC input current on I/O0
II/O
IDD
ISS
Ptot
Tstg
Tamb
DC output current on an I/O
DC supply current
DC supply current
Total power dissipation
Storage temperature range
Operating ambient temperature
MIN
–0.5
VSS – 0.5
—
—
VSS – 0.5
VSS – 0.5
—
—
—
—
—
—
–65
–40
MAX
+6
5.5
± 20
±400
5.5
5.5
+400
–20
± 50
85
100
200
+150
+85
UNIT
V
V
mA
µA
V
V
µA
mA
mA
mA
mA
mW
°C
°C
HANDLING
Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be totally safe, it is desirable to take
precautions appropriate to handling MOS devices. Advice can be found in Data Handbook IC24 under ”Handling MOS devices”.
2001 Dec 12
11