pca8565a NXP Semiconductors, pca8565a Datasheet - Page 30

• Manufacturer Part Number: pca8565a
• Description: Real-time Clock/calendar
• Manufacturer: NXP Semiconductors

NXP Semiconductors
13. Dynamic characteristics
Table 32.
V
otherwise specified.
[1]
[2]
[3]
[4]
[5]
PCA8565A_2
Product data sheet
Symbol Parameter
Oscillator
C
CLKOUT output
Timing characteristics: I
f
t
t
t
t
t
t
C
t
t
t
t
SCL
HD;STA
SU;STA
LOW
HIGH
r
f
SU;DAT
HD;DAT
SU;STO
w(spike)
DD
CLKOUT
f
L(itg)
b
osc
= 1.8 V to 5.5 V; V
Integrated load capacitance, C
Unspecified for f
All timing values are valid within the operating supply voltage range at ambient temperature and referenced to V
voltage swing of V
A detailed description of the I
I
2
/f
C-bus access time between two starts or between a start and a stop condition to this device must be less than one second.
osc
integrated load capacitance
relative oscillator frequency variation
duty cycle on pin CLKOUT
SCL clock frequency
hold time (repeated) START condition
set-up time for a repeated START condition
LOW period of the SCL clock
HIGH period of the SCL clock
rise time
fall time
capacitive load for each bus line
data set-up time
data hold time
set-up time for STOP condition
spike pulse width
Dynamic characteristics
CLKOUT
SS
SS
to V
= 32.768 kHz.
= 0 V; T
2
DD
C-bus
.
2
C-bus specification is given in
L(itg)
amb
[3][4]
, is a calculation of C
= 40 C to + 125 C; f
Rev. 02 — 4 December 2009
OSCI
Conditions
of SCL and SDA signals
of SCL and SDA signals
tolerable
V
and C
Ref. 10
DD
osc
= 200 mV; T
OSCO
= 32.768 kHz; quartz R
“UM10204”.
in series:
amb
C
= 25 C
L itg
=
s
[1]
[2]
[5]
--------------------------------------------
C
C
= 40 k ; C
OSCI
OSCI
Min
6
-
-
-
0.6
0.6
1.3
0.6
-
-
-
100
0
0.6
-
+
Real-time clock/calendar
C
C
OSCO
OSCO
Typ
8
0.2
50
-
-
-
-
-
-
-
-
-
-
-
-
PCA8565A
L
= 8 pF; unless
IL
© NXP B.V. 2009. All rights reserved.
.
and V
Max
10
-
-
400
-
-
-
-
0.3
0.3
400
-
-
-
50
IH
with an input
Unit
pF
ppm
%
kHz
pF
ns
ns
ns
30 of 38
s
s
s
s
s
s
s