pca9671 NXP Semiconductors, pca9671 Datasheet - Page 21

• Manufacturer Part Number: pca9671
• Description: Remote 16-bit I/o Expander For Fm+ I2c-bus With Reset
• Manufacturer: NXP Semiconductors

NXP Semiconductors
13. Dynamic characteristics
Table 6.
V
[1]
[2]
[3]
[4]
PCA9671_1
Product data sheet
Symbol
f
t
t
t
t
t
t
t
t
t
t
t
t
t
Port timing; C
t
t
t
Reset timing (see
t
t
t
SCL
BUF
HD;STA
SU;STA
SU;STO
HD;DAT
VD;ACK
VD;DAT
SU;DAT
LOW
HIGH
f
r
SP
v(Q)
su(D)
h(D)
w(rst)
rec(rst)
rst
DD
= 2.3 V to 5.5 V; V
t
t
C
A master device must internally provide a hold time of at least 300 ns for the SDA signal (refer to the V
bridge the undefined region SCL’s falling edge.
VD;ACK
VD;DAT
b
= total capacitance of one bus line in pF.
= minimum time for SDA data out to be valid following SCL LOW.
= time for Acknowledgement signal from SCL LOW to SDA (out) LOW.
Parameter
SCL clock frequency
bus free time between a
STOP and START
condition
hold time (repeated)
START condition
set-up time for a repeated
START condition
set-up time for STOP
condition
data hold time
data valid acknowledge
time
data valid time
data set-up time
LOW period of the SCL
clock
HIGH period of the SCL
clock
fall time of both SDA and
SCL signals
rise time of both SDA and
SCL signals
pulse width of spikes that
must be suppressed by
the input filter
data output valid time
data input set-up time
data input hold time
reset pulse width
reset recovery time
reset time
Dynamic characteristics
L
[1]
100 pF (see
Figure
SS
[6]
= 0 V; T
[2]
26)
Figure 17
amb
= 40 C to +85 C; unless otherwise specified.
Conditions
and
Figure
Rev. 01 — 20 December 2006
[4][5]
16)
Standard-mode
Remote 16-bit I/O expander for Fm+ I
Min
300
250
100
4.7
4.0
4.7
4.0
0.3
4.7
4.0
0
0
0
4
4
0
-
-
-
-
I
2
C-bus
1000
Max
3.45
100
300
50
4
-
-
-
-
-
-
-
-
-
-
-
-
-
-
20 + 0.1C
20 + 0.1C
Fast-mode I
Min
100
100
1.3
0.6
0.6
0.6
0.1
1.3
0.6
50
0
0
0
4
4
0
-
-
b
b
[3]
[3]
2
C-bus
Max
400
300
300
IL
0.9
50
4
-
-
-
-
-
-
-
-
-
-
-
-
-
-
of the SCL signal) in order to
PCA9671
Plus I
0.26
0.26
0.26
0.05
0.26
Min
100
© NXP B.V. 2006. All rights reserved.
2
Fast-mode
0.5
0.5
50
50
0
0
0
4
4
0
C-bus with reset
-
-
-
-
2
C-bus
1000 kHz
Max
0.45
450
120
120
50
4
-
-
-
-
-
-
-
-
-
-
-
-
-
21 of 34
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s
s
s
s
s
s
s
s
s