参数资料
型号: DS17285S-5+T&R
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: XO, clock
英文描述: 3V/5V Real-Time Clock
中文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO24
封装: SO-24
文件页数: 6/38页
文件大小: 411K
代理商: DS17285S-5+T&R
DS17285/DS17287
14 of 38
Table 2. PERIODIC INTERRUPT RATE AND SQUARE-WAVE OUTPUT
FREQUENCY
EXTENDED
REGISTER B
SELECT BITS REGISTER A
E32k
RS3
RS2
RS1
RS0
tPI PERIODIC
INTERRUPT RATE
SQW OUTPUT
FREQUENCY
0
None
0
1
3.90625ms
256Hz
0
1
0
7.8125ms
128Hz
0
1
122.070s
8.192kHz
0
1
0
244.141s
4.096kHz
0
1
0
1
488.281s
2.048kHz
0
1
0
976.5625s
1.024kHz
0
1
1.953125ms
512Hz
0
1
0
3.90625ms
256Hz
0
1
0
1
7.8125ms
128Hz
0
1
0
1
0
15.625ms
64Hz
0
1
0
1
31.25ms
32Hz
0
1
0
62.5ms
16Hz
0
1
0
1
125ms
8Hz
0
1
0
250ms
4Hz
0
1
500ms
2Hz
1
X
*
32.768kHz
*RS3 to RS0 determine periodic interrupt rates as listed for E32k = 0.
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