s-35190a Seiko Instruments Inc., s-35190a Datasheet - Page 8

• Manufacturer Part Number: s-35190a
• Description: 3-wire Real-time Clock
• Manufacturer: Seiko Instruments Inc.

8
3-WIRE REAL-TIME CLOCK
S-35190A
SCK
SIO
CS
t
t
DS
DS
t
CSH
Output data
Input data
Figure 10 Timing Diagram 1 during 3-wire Communication
Figure 12 Timing Diagram 3 during 3-wire Communication
Figure 11 Timing Diagram 2 during 3-wire Communication
SCK
SCK
50%
20%
Seiko Instruments Inc.
80%
20%
t
SCK
80%
20%
t
ACC
t
ISU
t
R
, t
F
20%
t
50%
80%
IHO
80%
20%
t
R
t
SCK
80%
20%
80%
20%
50%
t
F
t
CSS
t
t
DH
DH
Rev.2.4
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