參數(shù)資料
型號(hào)： S-35180AT8T1
元件分類(lèi)： 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述： REAL TIME CLOCK, PDSO8
封裝： TSSOP-8
文件頁(yè)數(shù)： 14/46頁(yè)
文件大?。?/td> 498K
代理商： S-35180AT8T1
3-WIRE REAL-TIME CLOCK
Rev.2.0_00
S-35180A
Seiko Instruments Inc.
21
(5) Per-minute steady interrupt output 2
When the first minute carry is performed after the INT pin output mode is set as per-minute steady
interrupt 2 using status register_2, low is output from the INT pin for a period of 7.9 ms in
synchronization with the minute carry processing inside the IC. However, when real-time data is read,
the minute carry processing is delayed by a maximum of 0.5 s and accordingly low output from the INT
pin is also delayed by a maximum of 0.5 s. When the second data is rewritten by a real-time data write
command, counting starts from the rewritten second data and as a result, the output interval during that
period may become either longer or shorter.
INT pin
Minute-carry processing
60 s
Minute-carry processing
60 s
Minute-carry processing
7.9 ms
60 s
7.9 ms
INT pin
60 s
(Normal minute-
carry processing)
(60
X) s
7.9 ms
60 s
0.5 s Max.
Realtime data
read command
Minute-carry processing
Serial
communication
Minute-carry processing
(a) During normal operation
(b) During realtime data read
Realtime data reading
Realtime data
read command
Realtime data reading
Realtime data
write command
Realtime data writing (X s)
Figure 23 Timing of Per-Minute Steady Interrupt Output 2
Caution 1. When changing an output mode, give care to the state of INT1 register_1 and the
output.
2. If per-minute edge interrupt output or per-minute steady interrupt output is chosen,
INT1 register_1 has no meaning.
相關(guān)PDF資料
PDF描述
S-35180AI8T1G REAL TIME CLOCK, PDSO8
S-35190A-J8T1G 1 TIMER(S), REAL TIME CLOCK, PDSO8
S-35190A-I8T1U 1 TIMER(S), REAL TIME CLOCK, PDSO8
S-35190A-T8T1 REAL TIME CLOCK, PDSO8
S-35192A-I8T1U 1 TIMER(S), REAL TIME CLOCK, PDSO8
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