PCA9552 Philips Semiconductors, PCA9552 Datasheet - Page 13

• Manufacturer Part Number: PCA9552
• Description: 16-bit I2C LED driver with programmable blink rates
• Manufacturer: Philips Semiconductors

1. C
2. t
3. t
4. Resetting the device while actively communicating on the bus may cause glitches or errant STOP conditions.
5. Upon reset, the full delay will be the sum of t
Philips Semiconductors
AC SPECIFICATIONS
NOTES:
2004 Oct 01
Port Timing
Reset
16-bit I
t
t
SYMBOL
VD;DAT
VD;DAT
t
VD;ACK
VD;DAT
RESET
t
t
t
b
t
t
t
VD;ACK
HD;STA
SU;STA
SU;STO
HD;DAT
SU;DAT
t
t
t
f
t
= total capacitance of one bus line in pF.
HIGH
LOW
SCL
BUF
t
t
t
t
REC
t
t
SP
PV
PS
PH
t
W
F
R
4,5
(H)
(L)
= minimum time for SDA data out to be valid following SCL LOW.
= time for Acknowledgement signal from SCL LOW to SDA (out) LOW.
2
C LED driver with programmable blink rates
Operating frequency
Bus free time between STOP and START conditions
Hold time after (repeated) START condition
Repeated START condition set-up time
Set-up time for STOP condition
Data in hold time
Valid time for ACK condition
Data out valid time
Data out valid time
Data set-up 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
Reset pulse width
Reset recovery time
Time to reset
3
3
PARAMETER
RESET
2
and the RC time constant of the SDA bus.
13
STANDARD MODE
MIN
250
100
400
4.7
4.0
4.7
4.0
4.7
4.0
10
—
—
—
—
—
—
—
0
0
1
0
I
2
C-BUS
MAX
1500
1000
100
600
600
300
200
50
—
—
—
—
—
—
—
—
—
—
—
—
—
20 + 0.1 C
20 + 0.1 C
MIN
100
100
400
1.3
0.6
0.6
0.6
1.3
0.6
—
—
—
—
—
10
FAST MODE
0
0
1
0
I
2
C-BUS
b
b
1
1
MAX
400
600
600
600
300
300
200
—
—
—
—
—
—
—
—
50
—
—
—
—
—
PCA9552
Product data sheet
UNITS
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s
s
s
s
s
s