实时时钟
结果:
2,567
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：2,567
选择 | 图片 | 产品详情 | 单价 | 可用性 | ECAD 模型 | Mounting Type | Operating Temperature | Package / Case | Supplier Device Package | Memory Size | Interface | Grade | Series | Type | Features | Time Format | Date Format | Voltage - Supply | Voltage - Supply, Battery | Current - Timekeeping (Max) | Qualification |
|---|
 | 5+ ¥4.5000 10+ ¥4.2000 15+ ¥4.0500 更多的价格 | 7,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 16-VFQFN Exposed Pad | 16-QFN (3x3) | - | I²C, 2-Wire Serial | - | Timekeeper® | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Watchdog Timer | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | 1.5V ~ 4.4V | - | 0.9µA ~ 1.1µA @ 1.5V ~ 4.4V | - | ||
 | 5+ ¥18.0000 10+ ¥16.8000 15+ ¥16.2000 更多的价格 | 6,912 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 8-TSSOP (0.173", 4.40mm Width) | 8-TSSOP | 64B | I²C, 2-Wire Serial | Automotive | - | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.8V ~ 5.5V | 1.5V ~ 5.5V | 1.2µA @ 3.3V | AEC-Q100 | ||
 | 5+ ¥22.5000 10+ ¥21.0000 15+ ¥20.2500 更多的价格 | 6,811 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | 0°C ~ 70°C | 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets | 28-SOH | 114B | Parallel | - | - | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 4.5V ~ 5.5V | - | 15mA @ 4.5V ~ 5.5V | - | ||
 | 5+ ¥2.8500 10+ ¥2.6600 15+ ¥2.5650 更多的价格 | 6,800 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C (TA) | 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 | 1.8V ~ 5.5V | - | 0.8µA @ 1.3V ~ 1.8V | - | ||
 | 5+ ¥330.0000 10+ ¥308.0000 15+ ¥297.0000 更多的价格 | 6,691 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 18-SOX, 18-SOIC with Crystal (7.5mm Width) | 18-SOX | 7B | I²C, 2-Wire Serial | - | - | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | 3V ~ 5.5V | 2V ~ 5.5V | 10µA @ 5.5V | - | ||
 | 5+ ¥19.5000 10+ ¥18.2000 15+ ¥17.5500 更多的价格 | 6,520 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | - | I²C, 2-Wire Serial | - | - | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Watchdog Timer | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | 2.7V ~ 5.5V | 2V ~ 3.5V | 100µA @ 2.7V ~ 5.5V | - | ||
 | 5+ ¥30.0000 10+ ¥28.0000 15+ ¥27.0000 更多的价格 | 6,396 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | 10-MSOP | 64B | SPI | - | - | Clock/Calendar | Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | 1.8V ~ 3.6V | 1.3V ~ 3.6V | 1µA @ 1.8V ~ 3.6V | - | ||
 | 5+ ¥13.5000 10+ ¥12.6000 15+ ¥12.1500 更多的价格 | 6,306 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | - | I²C, 2-Wire Serial | - | - | Clock/Calendar | Alarm, Leap Year | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.8V ~ 3.6V | - | 0.65µA @ 1.8V | - | ||
| 5+ ¥22.5000 10+ ¥21.0000 15+ ¥20.2500 更多的价格 | 6,300 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 7B | I²C, 2-Wire Serial | - | - | Clock/Calendar | Alarm, Leap Year, SRAM, Watchdog Timer | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | 2.7V ~ 5.5V | 2V ~ 5.5V | 10µA @ 5.5V | - | ||
| 5+ ¥45.0000 10+ ¥42.0000 15+ ¥40.5000 更多的价格 | 6,269 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | - | I²C, 2-Wire Serial | - | - | Clock/Calendar | Alarm, Leap Year | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | - | ||
 | 5+ ¥9.0000 10+ ¥8.4000 15+ ¥8.1000 更多的价格 | 6,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-uMAX/uSOP | - | I²C, 2-Wire Serial | - | Clock/Calendar | Leap Year, Trickle-Charger | HH:MM:SS (24 hr) | YY-MM-DD-dd | 2.97V ~ 5.5V | 1.3V ~ 5.5V | 150µA @ 5.5V | ||||
 | 5+ ¥37.5000 10+ ¥35.0000 15+ ¥33.7500 更多的价格 | 6,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 20-SOIC (0.295", 7.50mm Width) | 20-SO | - | I²C, 2-Wire Serial | - | - | Clock/Calendar | Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.8V ~ 4.2V | 1.8V ~ 4.2V | 1.5µA @ 3.3V | - | ||
 | 5+ ¥22.5000 10+ ¥21.0000 15+ ¥20.2500 更多的价格 | 5,979 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 56B | I²C, 2-Wire Serial | - | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2.7V ~ 5.5V | 1.3V ~ 3.7V | 200µA @ 3.3V | ||||
| 5+ ¥22.5000 10+ ¥21.0000 15+ ¥20.2500 更多的价格 | 5,979 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 56B | I²C, 2-Wire Serial | - | - | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2.7V ~ 5.5V | 1.3V ~ 3.7V | 200µA @ 3.3V | - | ||
 | 5+ ¥3.3900 10+ ¥3.1640 15+ ¥3.0510 更多的价格 | 5,639 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | - | I²C, 2-Wire Serial | - | - | Clock/Calendar | Leap Year, Square Wave Output, Trickle-Charger | HH:MM:SS (24 hr) | YY-MM-DD-dd | 3V ~ 3.6V | 1.4V ~ 3.6V | 100µA @ 3.3V | - | ||
| 5+ ¥12.3000 10+ ¥11.4800 15+ ¥11.0700 更多的价格 | 5,526 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | - | I²C, 2-Wire Serial | - | - | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Watchdog Timer | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | 2V ~ 5.5V | 2.5V ~ 3.5V | 100µA @ 2V ~ 5.5V | - | ||
 | 5+ ¥22.5000 10+ ¥21.0000 15+ ¥20.2500 更多的价格 | 5,400 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 8-SOIC (0.295", 7.50mm Width) | 8-SO | 240B | I²C, 2-Wire Serial | - | - | Clock/Calendar | Alarm, NVSRAM, Square Wave Output | HH:MM:SS:hh (12/24 hr) | YY-MM-DD | 2.5V ~ 6V | - | 10µA ~ 50µA @ 1V ~ 5V | - | ||
 | 5+ ¥16.7250 10+ ¥15.6100 15+ ¥15.0525 更多的价格 | 5,300 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC | - | I²C, 2-Wire Serial | - | Clock/Calendar | Alarm, Leap Year, Square Wave Output, TCXO/Crystal | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2.3V ~ 5.5V | 2.3V ~ 5.5V | 110µA ~ 170µA @ 3.63V ~ 5.5V | ||||
 | 5+ ¥16.7250 10+ ¥15.6100 15+ ¥15.0525 更多的价格 | 5,300 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC | - | I²C, 2-Wire Serial | - | - | Clock/Calendar | Alarm, Leap Year, Square Wave Output, TCXO/Crystal | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2.3V ~ 5.5V | 2.3V ~ 5.5V | 110µA ~ 170µA @ 3.63V ~ 5.5V | - | ||
 | 5+ ¥90.0000 10+ ¥84.0000 15+ ¥81.0000 更多的价格 | 5,235 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 64B, 1Kb | I²C, 2-Wire Serial | - | - | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Unique ID | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.8V ~ 5.5V | 1.3V ~ 5.5V | 1.2µA @ 3.3V | - |
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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