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Maxim > 方案 > 传输节点、接入节点、上/下路复用器和数字交叉连接
实时时钟
|
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| 显示 |
标题/型号 |
关键优势 |
| QV PDF |
低电压SPI/3线接口RTC，带有涓流充电器
DS1390, DS1391, DS1392, DS1393, DS1394
| 低电压、SPI™/3线接口RTC，带有涓流充电器，与同类产品相比具有更多功能和更小尺寸 |
| QV PDF |
带有恒压涓流充电器的RTC
DS12CR887, DS12R885, DS12R887
| |
| QV PDF |
I²C RTC，带有56字节NV RAM
DS1338, DS1338C, DS1338U, DS1338Z
| |
| QV PDF |
I²C串行实时时钟
DS1339, DS1339C, DS1339U
| RTC的多种可编程特性为系统提供更多灵活性 |
| QV PDF |
I²C串行实时时钟
DS1337, DS1337C
| 业内尺寸最小的I²C RTC，带有两个定时闹钟 |
| QV PDF |
历时记录器，带有闹钟功能
DS1682
| 业内首款非晶振历时计数器 |
| QV PDF |
实时事件记录器
DS1678
| |
| QV PDF |
便携系统控制器
DS1677
| |
| QV PDF |
便携系统控制器
DS1673
| |
| QV PDF |
I²C、32位二进制计数RTC
DS1672
| 低电压串行时钟芯片，内部包括超低电压时钟、电源监视电路、电源失效开关和涓流充电选项，单一芯片可替代多个分立元件 |
| QV PDF |
便携系统控制器
DS1670
| |
| Key Specifications:
Timekeeping & Real-Time Clocks |
| Part Number |
Functions |
Time Format (hh = sec/100) |
Date Format |
Interface |
Supply Voltage (V) |
Time- keeping Current (typ) (nA) |
CL, Load Capacitance (pF) |
Memory Type |
Memory Size (Bytes) |
Number of Time of Day Alarms |
|
DS1390
|
-
|
HH:MM:SS:hh
|
YY-MM-DD
|
SPI
|
1.8
3
3.3
5
|
500
|
6
|
None
|
-
|
1
|
|
DS1391
|
-
|
HH:MM:SS:hh
|
YY-MM-DD
|
SPI
|
1.8
3
3.3
5
|
500
|
6
|
None
|
-
|
1
|
|
DS1392
|
-
|
HH:MM:SS:hh
|
YY-MM-DD
|
3-Wire
|
1.8
3
3.3
5
|
500
|
6
|
None
|
-
|
1
|
|
DS1393
|
-
|
HH:MM:SS:hh
|
YY-MM-DD
|
3-Wire
|
1.8
3
3.3
5
|
500
|
6
|
None
|
-
|
1
|
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DS12CR887
|
-
|
HH:MM:SS
|
YY-MM-DD
|
Multiplexed
|
3.3
5
|
-
|
-
|
NV SRAM
|
114
|
1
|
|
DS12R885
|
-
|
HH:MM:SS
|
YY-MM-DD
|
Multiplexed
|
3.3
5
|
800
|
12.5
|
NV SRAM
|
114
|
1
|
|
DS12R887
|
-
|
HH:MM:SS
|
YY-MM-DD
|
Multiplexed
|
3.3
5
|
-
|
-
|
NV SRAM
|
114
|
1
|
|
DS1338
|
-
|
HH:MM:SS
|
YY-MM-DD
|
I2C
|
1.8
3
3.3
5
|
800
|
12.5
|
NV SRAM
|
56
|
0
|
|
DS1339
|
-
|
HH:MM:SS
|
YY-MM-DD
|
I2C
|
2
3
3.3
5
|
400
|
6
|
None
|
-
|
2
|
|
DS1337
|
-
|
HH:MM:SS
|
YY-MM-DD
|
I2C
|
2
3
3.3
5
|
425
|
6
|
None
|
-
|
2
|
|
DS1670
|
|
HH:MM:SS
|
YY-MM-DD
|
3-Wire
|
3.3
|
300
|
6
|
None
|
-
|
1
|
|
DS1672
|
|
Binary
|
Binary
|
I2C
|
2
3
3.3
|
425
|
6
|
None
|
-
|
0
|
|
DS1673
|
|
HH:MM:SS
|
YY-MM-DD
|
3-Wire
|
3
5
|
300
|
6
|
None
|
-
|
1
|
|
DS1677
|
|
HH:MM:SS
|
YY-MM-DD
|
3-Wire
|
5
|
300
|
6
|
None
|
-
|
1
|
|
DS1682
|
| • | Time/Temperature/Event Recorder |
|
Binary
|
Binary
|
I2C
|
3
3.3
5
|
-
|
-
|
EEPROM
|
10
|
1
|
|
DS1678
|
-
|
HH:MM:SS
|
YY-MM-DD
|
I2C
|
5
|
300
|
12.5
|
None
|
-
|
1
|
| See All Timekeeping & Real-Time Clocks (86) |
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法律声明
© 2008 Maxim Integrated Products, Dallas Semiconductor版权所有
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