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Maxim > 方案 > GPS方案
实时时钟(RTC)
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| 显示 |
标题/型号 |
关键优势 |
| QV PDF |
高精度、I²C RTC，集成晶体和SRAM
DS3232
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| 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 |
高精度、SPI总线RTC，集成晶体和SRAM
DS3234
| 完全集成的高精度时钟方案，在整个工业级温度范围内精度优于±2.0分钟/年，无需用户校准 |
| 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 |
| Key Specifications: Oscillator Modules |
| Part Number |
Freq. |
Osc. Type |
Tuning Adjustment Type |
Freq. Output Type |
Frequency Stability
(±ppm/yr) |
Frequency Stability
(±ppm/yr) |
Frequency Stability
(±ppm/yr) |
Frequency Stability
(±ppm) |
VSUPPLY
(V) |
| 0 to +40°C |
-40 to 0°C/ +40 to +85°C |
vs. VCC |
vs. Aging |
| DS3234 |
32.768kHz |
TCXO |
Digital |
CMOS Push-Pull |
2 |
3.5 |
1 (typ) |
5 (0-10 Years) |
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| DS3232 |
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See All Oscillator Modules (28)
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| Key Specifications: Timekeeping & Real-Time Clocks |
| Part Number |
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 |
| DS1394 |
YY-MM-DD/ HH:MM:SS:hh |
SPI |
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500 |
6 |
None |
- |
1 |
| DS3234 |
YY-MM-DD/ HH:MM:SS |
SPI |
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1500 |
- |
NV SRAM |
256 |
2 |
| DS3232 |
YY-MM-DD/ HH:MM:SS |
I2C |
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1500 |
- |
NV SRAM |
236 |
2 |
| DS1390 |
YY-MM-DD/ HH:MM:SS:hh |
SPI |
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500 |
6 |
None |
- |
1 |
| DS1391 |
YY-MM-DD/ HH:MM:SS:hh |
SPI |
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500 |
6 |
None |
- |
1 |
| DS1392 |
YY-MM-DD/ HH:MM:SS:hh |
3-Wire |
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500 |
6 |
None |
- |
1 |
| DS1393 |
YY-MM-DD/ HH:MM:SS:hh |
3-Wire |
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500 |
6 |
None |
- |
1 |
| DS1337 |
YY-MM-DD/ HH:MM:SS |
I2C |
|
425 |
6 |
None |
- |
2 |
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See All Timekeeping & Real-Time Clocks (80)
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