Maxim > 方案 > 电缆调制解调器与CATV
实时时钟
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标题/型号 |
关键优势 |
| QV PDF |
I²C RTC，带有涓流充电器
DS1340, DS1340C
| I²C实时时钟，带有涓流充电器，可通过软件进行校准 |
| QV PDF |
I²C、32位二进制计数器看门狗RTC，带有涓流充电器和复位输入/输出
DS1374, DS1374C, DS1374U
| 历时计数器，提供上电复位、看门狗或闹钟、方波输出 |
| QV PDF |
I²C RTC，带有56字节NV RAM
DS1338, DS1338C, DS1338U, DS1338Z
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| 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
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| QV PDF |
便携系统控制器
DS1677
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| QV PDF |
便携系统控制器
DS1673
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| QV PDF |
I²C、32位二进制计数器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
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| Key Specifications: Timekeeping & Real-Time Clocks |
| Part Number |
Functions |
Date/ Time Format |
Interface |
VSUPPLY
(V) |
Time Keeping Current
(nA) |
CL
(pF) |
Memory Type |
Memory Size
(Bytes) |
Time of Day Alarms |
| hh = sec/100 |
typ |
| DS1340 |
- |
YY-MM-DD/ HH:MM:SS |
I2C |
|
800 |
12.5 |
None |
- |
0 |
| DS1374 |
| Elapsed Time Counter | | Watchdog Timekeeper |
|
Binary |
I2C |
|
400 |
6 |
None |
- |
1 |
| DS1338 |
- |
YY-MM-DD/ HH:MM:SS |
I2C |
|
800 |
12.5 |
NV SRAM |
56 |
0 |
| DS1339 |
- |
YY-MM-DD/ HH:MM:SS |
I2C |
|
400 |
6 |
None |
- |
2 |
| DS1337 |
- |
YY-MM-DD/ HH:MM:SS |
I2C |
|
425 |
6 |
None |
- |
2 |
| DS1670 |
| NV SRAM Control | | Watchdog Timekeeper |
|
YY-MM-DD/ HH:MM:SS |
3-Wire |
3.3 |
300 |
6 |
None |
- |
1 |
| DS1672 |
Elapsed Time Counter |
Binary |
I2C |
|
425 |
6 |
None |
- |
0 |
| DS1673 |
| NV SRAM Control | | Watchdog Timekeeper |
|
YY-MM-DD/ HH:MM:SS |
3-Wire |
|
300 |
6 |
None |
- |
1 |
| DS1677 |
| NV SRAM Control | | Watchdog Timekeeper |
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YY-MM-DD/ HH:MM:SS |
3-Wire |
5 |
300 |
6 |
None |
- |
1 |
| DS1682 |
Time/Temperature/Event Recorder |
Binary |
I2C |
|
- |
- |
EEPROM |
10 |
1 |
| DS1678 |
- |
YY-MM-DD/ HH:MM:SS |
I2C |
5 |
300 |
12.5 |
None |
- |
1 |
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See All Timekeeping & Real-Time Clocks (80)
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