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參數(shù)資料
| 型號： | DS1693 |
| 英文描述： | 3-Volt/5-Volt Serialized Real-Time Clock with NV RAM Control |
| 文件頁數(shù)： | 3/32頁 |
| 文件大?。?/td> | 321K |
| 代理商： | DS1693 |
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DS1689/DS1693
3 of 32
V
CCO
(External SRAM Power Supply Output)
- This pin will be internally connected to V
CCI
when
V
CCI
is within nominal limits. However, during power fail, V
CCO
will be internally connected to the V
BAT
or V
BAUX
(whichever is larger). For 5-volt operation, switch over from V
CCI
to the backup supply occurs
when V
CCI
drops below the larger of V
BAT
and V
BAUX
. For 3-volt operation, switch over from V
CCI
to the
backup supply occurs at V
PF
if V
PF
is less than V
BAT
and V
BAUX
. If V
PF
is greater than V
BAT
and V
BAUX
,
the switch from V
CCI
to the backup supply occurs when V
CCI
drops below the larger of V
BAT
and V
BAUX
.
DS1689/DS1693 BLOCK DIAGRAM
Figure 1
SQW (Square Wave Output)
- The SQW pin can output a signal from one of 13 taps provided by the 15
internal divider stages of the real time clock. The frequency of the SQW pin can be changed by
programming Register A as shown in Table 2. The SQW signal can be turned on and off using the SQWE
bit in Register B. A 32 kHz SQW signal is output when SQWE=1, the Enable 32 kHz (E32K) bit in
extended register 04BH is a logic 1, and V
CC
is above V
PF
. A 32 kHz square wave is also available when
V
CC
is less than V
PF
if E32K=1, ABE=1, and voltage is applied to V
BAUX
.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS1693+ | 功能描述:實時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1697N WAF | 制造商:Texas Instruments 功能描述: |
| DS1699-010 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:ELECTRONIC DIGITAL RHEOSTAT |
| DS1699-10 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:ELECTRONIC DIGITAL RHEOSTAT |
| DS1699-100 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:ELECTRONIC DIGITAL RHEOSTAT |
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