s-35190a Seiko Instruments Inc., s-35190a Datasheet - Page 9

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

3-WIRE REAL-TIME CLOCK
Rev.2.4
S-35190A
_00
Configuration of Data Communication
1. Configuration of data communication
After setting the CS pin “H”, transmit the 4-bit fixed code “0110”, after that, transmit a 3-bit command and 1-bit Read/Write
command. Next, data is output or input from B7. Regarding details, refer to “ Serial Interface”.
Read/Write bit
Fixed code
Command
0
1
1
0
C2
C1
C0
R / W
1-byte data
B7
B6
B5
B4
B3
B2
B1
B0
Figure 13 Data Communication
Seiko Instruments Inc.
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