Datasheet

1999 Apr 07 14
Philips Semiconductors Product specification
Remote 16-bit I/O expander for I
2
C-bus
PCF8575
Notes
1. The power-on reset circuit resets the I
2
C-bus logic with V
DD
<V
POR
and sets all I/Os to logic 1 (with current source
to V
DD
).
2. The value is not tested, but verified on sampling basis.
3. A single LOW-level output current (I
OL
) must not exceed 20 mA for an extended time. The sum of all I
OLs
at any point
in time must not exceed 100 mA.
I
L2
leakage current on all other signal
pins
V
I
=V
DD
or V
SS
−10 − +10 µA
Input SCL; input/output SDA
I
OL
LOW-level output current V
OL
= 0.4 V; note 3 3 −−mA
C
I
input capacitance V
I
=V
SS
; note 2 −−7pF
I/Os; P00 to P07 and P10 to P17
I
OL
LOW-level output current V
OL
= 1 V; note 3 10 25 − mA
I
OH
HIGH-level output current V
OH
=V
SS
−30 −−300 µA
I
OHt
transient pull-up current V
OH
=V
SS
; see Fig.9 −0.5 −1.0 − mA
C
I
input capacitance note 2 −−10 pF
C
O
output capacitance note 2 −−10 pF
Port timing; C
L
≤ 100 pF (see Figs 9 and 10)
t
pv
output data valid −−4µs
t
su
input data set-up time 0 −−µs
t
h
input data hold time 4 −−µs
Interrupt
INT (see Fig.13)
I
OL
LOW-level output current V
OL
= 0.4 V 1.6 −−mA
TIMING;C
L
≤100 pF (see Figs 9 and 10)
t
iv
input data valid time −−4µs
t
ir
reset delay time −−4µs
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT