S-35399A03-J8T2G Seiko Instruments, S-35399A03-J8T2G Datasheet - Page 35

• Manufacturer Part Number: S-35399A03-J8T2G
• Description: Real Time Clock 2-wire Real Time Clock
• Manufacturer: Seiko Instruments

Specifications of S-35399A03-J8T2G

• Supply Voltage (max): 3 V
• Supply Voltage (min): 1.3 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial
• Supply Current: 0.34 uA
• Package / Case: SOP-8
• 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-35399A03
*1. Set NO_ACK = 1 in Read.
*2. Transmit ACK = 0 from the master device to the S-35399A03 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 41 Status Register 1 Access and Status Register 2 Access
I/O mode switching
0
1
1
SDA
0
SCL
command
1
Code +
1
1
command
I/O mode switching
0
Code +
1
0
0
1
0
0
1
Figure 39 Real-Time Data 1 Access
Figure 40 Real-Time Data 2 Access
1
0
R/W
1
1
9
command
B7
Code +
R/W
1
9
Year data
B7
0
Seiko Instruments Inc.
*1
0
Hour data
0
B0
I/O mode switching
B0
R/W
9
B7
I/O mode switching
18
Status data
18
B7
Minute data
B0
I/O mode switching
18
in Read
B0
27
B7
2-WIRE REAL-TIME CLOCK
Second data
63
B7
.
Second data
B0
B0
36
72
S-35399A03
35