pca9537dp NXP Semiconductors, pca9537dp Datasheet - Page 11

• Manufacturer Part Number: pca9537dp
• Description: 4-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
4-bit I
I/O port with interrupt and reset
Port Timing
Interrupt Timing
RESET
SYMBOL
t
t
t
t
t
t
t
t
VD;ACK
VD;DAT
HD;STA
SU;STO
HD;DAT
VD;ACK
VD;DAT
SU;DAT
SU;STA
t
RESET
b
t
t
f
t
HIGH
LOW
BUF
t
t
t
t
REC
SCL
t
t
t
t
t
SP
PV
PS
PH
= total capacitance of one bus line in pF.
IR
IV
W
F
R
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
P
Reset pulse width
Reset recovery time
Time to reset
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
t
BUF
S
t
HD;STA
t
3
PARAMETER
LOW
2
t
t
R
HD;DAT
Figure 12. 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
C-bus
MAX
1000
3.45
100
300
200
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Sr
4
4
t
SU;STA
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
I
2
C-bus
b
b
1
1
t
SP
MAX
t
400
300
300
200
SU;STO
0.9
—
—
—
—
—
—
—
—
—
50
—
—
—
—
—
4
4
PCA9537
Product data sheet
UNITS
SU00645
P
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s
s
s
s
s
s
s
s
s