S-35390A-T8T1G Seiko Instruments, S-35390A-T8T1G Datasheet - Page 24

• Manufacturer Part Number: S-35390A-T8T1G
• Description: IC RTC I2C 2-WIRE 8-TSSOP
• Manufacturer: Seiko Instruments
• Type: Clock/Calendarr

Specifications of S-35390A-T8T1G

• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP
• Function: Clock/Calendar/Alarm/Battery Backup/Interrupt
• Supply Voltage (max): 5.5 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 (2-Wire, I2C)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 728-1007-2

24
2-WIRE REAL-TIME CLOCK
S-35390A
communication
5. Minute-periodical interrupt output 2 (only in the
The output of minute-periodical interrupt 2 is the function to output “L”, for 7.9 ms, from the
with the first minute-carry processing after selecting the output mode. However, in Read in the real-time data register,
the procedure delays at max. 0.5 sec thus output “L” from the
real-time data register, some delay is made in the output period due to Write timing and the second-data during Write.
(a) During normal operation
(b) During Read in the real-time data register
(c) During Write in the real-time data register
Real-time data
INT1 pin
write timing
INT1 pin
Serial
INT1 pin
read command
Real-time data
Minute-carry processing
7.9 ms
Minute-carry processing
Minute-carry processing
7.9 ms
7.9 ms
Figure 29 Timing of Minute-periodical Interrupt Output 2
Second data of writing: "50" s
Real-time
data reading
The output period is shorter.
45 s
60 s
carry processing)
55 s
60 s
Seiko Instruments Inc.
(Normal minute-
0.5 s Max.
Real-time data
read command
Minute-carry processing
Minute-carry processing
10 s
INT
Real-time
data reading
Minute-carry processing
1
INT
Second data of writing: "10" s
30 s
pin output mode)
7.9 ms
The output period is longer.
1
7.9 ms
pin also delays at max. 0.5 sec. In Write in the
7.9 ms
60 s
60 s
80 s
Minute-carry processing
50 s
Minute-carry processing
Minute-carry processing
INT
7.9 ms
1
pin, synchronizing
7.9 ms
Rev.3.0
7.9 ms
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