pca9538d NXP Semiconductors, pca9538d Datasheet - Page 11

• Manufacturer Part Number: pca9538d
• Description: 8-bit I2c And Smbus Low Power I/o Port With Interrupt And Reset
• Manufacturer: NXP Semiconductors

1. C
2. t
3. t
Philips Semiconductors
AC SPECIFICATIONS
NOTES:
2006 Sep 21
8-bit I
I/O port with interrupt and reset
SYMBOL
Port Timing
Interrupt Timing
RESET
t
t
t
t
t
t
t
t
VD;ACK
HD;STA
SU;STA
SU;STO
HD;DAT
VD;DAT
SU;DAT
RESET
t
t
t
f
t
HIGH
VD;ACK
VD;DAT
LOW
SCL
BUF
t
t
t
t
REC
t
t
t
t
PH
b
t
SP
PV
PS
IR
IV
W
F
R
= total capacitance of one bus line in pF.
SDA
SCL
2
= minimum time for SDA data out to be valid following SCL low.
= time for Acknowledgement signal from SCL low to SDA (out) low.
C-bus and SMBus low power
Operating frequency
Bus free time between STOP and START conditions
Hold time after (repeated) START condition
Repeated START condition setup time
Setup time for STOP condition
Data in hold time
Valid time for ACK condition
Data out valid time
Data setup time
Clock LOW period
Clock HIGH period
Clock/Data fall time
Clock/Data rise time
Pulse width of spikes that must be suppressed by the input filters
Output data valid
Input data setup time
Input data hold time
Interrupt valid
Interrupt reset
Reset pulse width
Reset recovery time
Time to reset
P
t
BUF
S
3
t
HD;STA
t
LOW
PARAMETER
2
t
t
R
HD;DAT
Figure 13. Definition of timing
t
HIGH
t
F
11
t
SU;DAT
STANDARD MODE
MIN
300
250
100
400
4.7
4.0
4.7
4.0
0.3
4.7
4.0
—
—
—
—
—
—
0
0
1
4
0
I
2
Sr
C-bus
MAX
1000
3.45
t
100
300
200
SU;STA
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4
4
t
HD;STA
20 + 0.1 C
20 + 0.1 C
MIN
100
100
400
1.3
0.6
0.6
0.6
0.1
1.3
0.6
50
—
—
—
—
FAST MODE
0
0
1
4
0
t
I
SP
2
C-bus
b
b
t
1
1
SU;STO
PCA9538
MAX
400
300
300
200
Product data sheet
0.9
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4
4
SU00645
P
UNITS
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s
s
s
s
s
s
s
s
s