S-35190A-J8T1G Seiko Instruments, S-35190A-J8T1G Datasheet - Page 32

• Manufacturer Part Number: S-35190A-J8T1G
• Description: IC REAL TIME CLOCK 3WIRE 8-SOP
• Manufacturer: Seiko Instruments
• Type: Clock/Calendarr

Specifications of S-35190A-J8T1G

• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: 3-Wire Serial
• Voltage - Supply: 1.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -

32
3-WIRE REAL-TIME CLOCK
S-35190A
During reading: Output mode switching
(4) INT register 1 access and INT register 2 access
During reading: Output mode switching
In Read/Write the INT register 1, data varies depending on the setting of the status register 2. Be sure to Read/Write
the INT register 1 after setting the status register 2. When setting the alarm by using the status register 2, these
registers work as 3-byte alarm time data registers, in other statuses, they work as 1-byte registers. When outputting
the user-set frequency, they are the data registers to set up the frequency.
Read/Write the INT register 2 after setting INT2AE in the status register 2. When INT2AE is in “1”, the INT register 2
works as for setting the 3-byte alarm time data. The INT register 2 does not have the function to output the user-set
frequency. Regarding details of each data, refer to “ 4. INT register 1 and INT register 2 ” in “
Register ”.
Caution
*1. 0 : INT register 1 selected
1 : INT register 2 selected
SCK
SIO
CS
simultaneously.
Users cannot use both functions of alarm 1 interrupt and the output of user-set frequency
Figure 38 INT Register 1 (Data Register for output frequency) Access
SCK
X
SIO
CS
Figure 37 INT Register 1 Access and INT Register 2 Access
0
1
Fixed code +
1
command
1
0
*1
X
1
0
0
Fixed code +
1
1
command
1
8
B7
0
R / W
Day of the
week data
Seiko Instruments Inc.
1
0
0
8
B7
B0
R / W
Frequency setting
data
16
B7
Hour data
16
B0
B0
24
B7
Minute data
During reading:
Input mode switching
32
B0
During reading:
Input mode switching
Configuration of
Rev.3.0
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