pcf8563 NXP Semiconductors, pcf8563 Datasheet - Page 19

• Manufacturer Part Number: pcf8563
• Description: Real-time Clock/calendar
• Manufacturer: NXP Semiconductors

NXP Semiconductors
11. Dynamic characteristics
Table 28.
V
specified.
[1]
[2]
[3]
[4]
PCF8563_5
Product data sheet
Symbol
Oscillator
C
Quartz crystal parameters (f = 32.768 kHz)
R
C
C
CLKOUT output
I
f
t
t
t
t
t
t
C
t
t
t
t
2
SCL
HD;STA
SU;STA
LOW
HIGH
r
f
SU;DAT
HD;DAT
SU;STO
w(spike)
DD
CLKOUT
f
C-bus timing characteristics (see
L(itg)
s
L
trim
b
osc
= 1.8 V to 5.5 V; V
Unspecified for f
All timing values are valid within the operating supply voltage at ambient temperature and referenced to V
swing of V
A detailed description of the I
may be ordered using the code 9398 393 40011.
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
Dynamic characteristics
Parameter
integrated load
capacitance
relative oscillator
frequency variation
series resistance
parallel load capacitance
trimmer capacitance
CLKOUT duty cycle
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 of both SDA and
SCL signals
fall time of both SDA and
SCL signals
capacitive bus line load
data set-up time
data hold time
set-up time for STOP
condition
tolerable spike width on
bus
SS
to V
CLKOUT
DD
.
SS
= 32.768 kHz.
= 0 V; T
2
C-bus specification, with applications, is given in brochure The I
amb
= 40 C to +85 C; f
Figure
Conditions
T
SDA
SCL
SDA
SCL
V
amb
DD
21)
= 25 C
= 200 mV;
Rev. 05 — 17 July 2007
osc
= 32.768 kHz; quartz R
[2][3]
[1]
[4]
Min
15
-
-
-
5
-
-
0.6
0.6
1.3
0.6
-
-
-
-
-
100
0
0.6
-
s
= 40 k ; C
2
C-bus and how to use it . This brochure
Typ
25
2
-
10
-
50
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10
Real time clock/calendar
IL
-7
L
and V
= 8 pF; unless otherwise
PCF8563
Max
35
-
40
-
25
-
400
-
-
-
-
0.3
0.3
0.3
0.3
400
-
-
-
50
© NXP B.V. 2007. All rights reserved.
IH
with an input voltage
Unit
pF
-
k
pF
pF
%
kHz
pF
ns
ns
ns
19 of 32
s
s
s
s
s
s
s
s
s