S-35392A-I8T1G Seiko Instruments, S-35392A-I8T1G Datasheet - Page 31

• Manufacturer Part Number: S-35392A-I8T1G
• Description: Real Time Clock 2-wire Real Time Clock
• Manufacturer: Seiko Instruments

Specifications of S-35392A-I8T1G

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Rev.2.0
4. Data access
(1) Real-time data 1 access
(2) Real-time data 2 access
(3) Status register 1 access and status register 2 access
*1. Set NO_ACK = 1 in Read.
*2. Transmit ACK = 0 from the master device to the S-35392A
*1. Set NO_ACK = 1 in Read.
*2. Transmit ACK = 0 from the master device to the S-35392A in Read.
*1. 0 : Status register 1 selected, 1 : Status register 2 selected
*2. Set NO_ACK = 1 in Read.
_00
SDA
SCL
SDA
SCL
I/O mode switching
Figure 36 Status Register 1 Access and Status Register 2 Access
I/O mode switching
0
Device code +
1
SDA
1
SCL
0
command
Device code +
1
1
1
I/O mode switching
command
0
1
0
0
1
0
0
1
Figure 34 Real-Time Data 1 Access
Figure 35 Real-Time Data 2 Access
0
1
Device code +
R/W
1
1
command
9
B7
R/W
1
9
0
Year data
B7
*1
Seiko Instruments Inc.
0
Hour data
0
B0
I/O mode switching
B0
R/W
B7
9
I/O mode switching
18
Status data
18
B7
Minute data
B0
I/O mode switching
in Read
18
B0
27
B7
.
Second data
2-WIRE REAL-TIME CLOCK
63
B7
Second data
B0
B0
36
72
S-35392A
31