实时时钟
结果:
2,570
Manufacturer
Series
Current - Timekeeping (Max)
Supplier Device Package
Package / Case
Features
Voltage - Supply
Voltage - Supply, Battery
Memory Size
Interface
Operating Temperature
Type
Time Format
Date Format
Mounting Type
Qualification
Grade
结果：2,570
选择 | 图片 | 产品详情 | 单价 | 可用性 | ECAD 模型 | Series | Mounting Type | Operating Temperature | Voltage - Supply | Package / Case | Supplier Device Package | Interface | Type | Features | Memory Size | Time Format | Date Format | Voltage - Supply, Battery | Current - Timekeeping (Max) |
|---|
 | 5+ $0.5208 10+ $0.4861 15+ $0.4688 更多的价格 | 126,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 2V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 3-Wire Serial | Clock/Calendar | Leap Year, NVSRAM, Trickle-Charger | 31B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2V ~ 5.5V | 0.3µA ~ 1µA @ 2V ~ 5V | ||
| 5+ $0.5208 10+ $0.4861 15+ $0.4688 更多的价格 | 99,500 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 2V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 3-Wire Serial | Clock/Calendar | Leap Year, NVSRAM, Trickle-Charger | 31B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2V ~ 5.5V | 0.3µA ~ 1µA @ 2V ~ 5V | ||
 | 5+ $1.6667 10+ $1.5556 15+ $1.5000 更多的价格 | 89,390 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 1.7V ~ 3.6V | 16-VFQFN Exposed Pad | 16-QFN (3x3) | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer | 256B | HH:MM:SS:hh | YY-MM-DD-dd | 1.5V ~ 3.6V | 0.17µA ~ 0.22µA @ 1.8V ~ 3V | ||
 | 5+ $0.7292 10+ $0.6806 15+ $0.6563 更多的价格 | 88,704 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 105°C (TA) | 1.8V ~ 5.5V | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-TSSOP | I²C | Clock/Calendar | Alarm | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | - | ||
 | 5+ $0.3125 10+ $0.2917 15+ $0.2813 更多的价格 | 4,998 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 1.3V ~ 5.5V | 8-TSSOP (0.173", 4.40mm Width) | 8-TSSOP | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | 0.93µA ~ 1.1µA @ 3V ~ 5V | ||
 | 5+ $0.3333 10+ $0.3111 15+ $0.3000 更多的价格 | 59,600 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 1.3V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOP-J | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | 14µA ~ 30µA @ 3V ~ 5V | ||
 | 5+ $0.4167 10+ $0.3889 15+ $0.3750 更多的价格 | 55,084 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 2V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | - | 2.4µA ~ 31µA @ 2V ~ 5.5V | ||
 | 5+ $0.8333 10+ $0.7778 15+ $0.7500 更多的价格 | 50,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 1.8V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Unique ID | 64B, 1Kb | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 5.5V | 1.2µA @ 3.3V | ||
 | 5+ $0.4792 10+ $0.4472 15+ $0.4313 更多的价格 | 50,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 1V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SO | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Watchdog Timer | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | - | 0.6µA ~ 0.75µA @ 2V ~ 5V | ||
 | 5+ $1.2917 10+ $1.2056 15+ $1.1625 更多的价格 | 45,208 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 1.8V ~ 5.5V | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-MSOP | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM | 64B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 5.5V | 1.2µA @ 3.3V | ||
 | 5+ $0.5833 10+ $0.5444 15+ $0.5250 更多的价格 | 44,055 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 0.9V ~ 5.5V | 10-XFDFN Exposed Pad | 10-DFN (2.6x2.6) | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Watchdog Timer | - | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | 0.9V ~ 5.5V | 0.885µA @ 3.3V | ||
| 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | 0°C ~ 70°C | 2V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 3-Wire Serial | Clock/Calendar | Leap Year, NVSRAM, Trickle-Charger | 31B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2V ~ 5.5V | 0.3µA ~ 1µA @ 2V ~ 5V | ||
| 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | 0°C ~ 70°C | 2V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 3-Wire Serial | Clock/Calendar | Leap Year, NVSRAM, Trickle-Charger | 31B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2V ~ 5.5V | 0.3µA ~ 1µA @ 2V ~ 5V | ||
 | 5+ $1.6667 10+ $1.5556 15+ $1.5000 更多的价格 | 42,639 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 2V ~ 5.5V | 6-WDFN Exposed Pad | 6-TDFN (3x3) | I²C, 2-Wire Serial | Clock/Calendar | Leap Year, NVSRAM | 31B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | 0.63µA ~ 1.7µA | ||
 | 5+ $4.5833 10+ $4.2778 15+ $4.1250 更多的价格 | 40,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C (TA) | 1.6V ~ 5.5V | 8-VFBGA, WLBGA | 8-WLP (2.07x2.27) | I²C | Clock/Calendar | Alarm, Leap Year, RAM, Square Wave Output, SRAM, Trickle Charger | 64B | HH:MM:SS (24 hr) | YY-MM-DD-dd | 1.6V ~ 5.5V | 1.2µA ~ 2µA @ 1.6V ~ 5.5V | ||
 | 5+ $0.6042 10+ $0.5639 15+ $0.5438 更多的价格 | 40,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 0.9V ~ 5.5V | 8-WFDFN Exposed Pad | 8-HWSON (2x3) | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | 0.6µA @ 3.3V | ||
| 5+ $1.9479 10+ $1.8181 15+ $1.7531 更多的价格 | 36,710 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 1.8V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Square Wave Output | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | 0.3µA @ 1.3V ~ 1.8V | ||
 | 5+ $1.1458 10+ $1.0694 15+ $1.0313 更多的价格 | 36,390 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 2.97V ~ 5.5V | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | 10-uMAX/uSOP | SPI | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Trickle-Charger | - | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 5.5V | 175µA @ 2.97V ~ 5.5V | ||
 | 5+ $1.2500 10+ $1.1667 15+ $1.1250 更多的价格 | 32,635 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 2.97V ~ 5.5V | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | 10-uMAX/uSOP | SPI | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Trickle-Charger | - | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 5.5V | 175µA @ 2.97V ~ 5.5V | ||
| 5+ $0.4167 10+ $0.3889 15+ $0.3750 更多的价格 | 32,540 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 1.3V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOP-J | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | 0.93µA ~ 1.1µA @ 3V ~ 5V |
关于 实时时钟
实时时钟（RTC）是一种集成电路（IC），用于时钟/定时应用，提供准确的时间跟踪能力。这些IC专门设计用于跟踪现实世界的时间，包括小时、分钟、秒钟，有时甚至包括日期和月份信息。
实时时钟通常由低功耗振荡器、计数器和一组用于存储时间和日期信息的寄存器组成。它们通常配备备用电源，如电池或超级电容器，以确保即使在断电情况下，时间仍然准确。
RTC的主要功能是持续跟踪时间的流逝，独立于外部电源。它们通常用于需要准确时间跟踪的电子设备，如计算机、嵌入式系统、通信设备和消费类电子产品，如数字手表和时钟。
RTC IC提供了多种功能来增强时间跟踪的准确性和功能性。这些功能可能包括自动闰年调整、夏令时支持、报警功能以及与外部时间参考（如GPS信号）的同步能力。
实时时钟可以通过各种接口（如I2C或SPI）与其他组件或微控制器进行通信，便于集成到更大的电子系统中。
总的来说，RTC在各种应用中发挥着至关重要的作用，提供准确可靠的时间跟踪，确保设备显示正确的时间并能够准确执行时间相关的功能。
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