实时时钟
结果:
2,511
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：2,511
选择 | 图片 | 产品详情 | 单价 | 可用性 | ECAD 模型 | Series | Mounting Type | Operating Temperature | Memory Size | Package / Case | Supplier Device Package | Voltage - Supply | Interface | Type | Features | Time Format | Date Format | Voltage - Supply, Battery | Current - Timekeeping (Max) |
|---|
 | 5+ $0.6338 10+ $0.5915 15+ $0.5704 更多的价格 | 21,035 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 | 2.97V ~ 5.5V | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Trickle-Charger | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 3.7V | 200µA @ 5.5V | ||
 | 5+ $0.7183 10+ $0.6704 15+ $0.6465 更多的价格 | 20,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | - | 8-SOIC (0.154", 3.90mm Width) | 8-SO | 1.6V ~ 5.5V | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Watchdog Timer | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.8V ~ 5.5V | 0.5µA @ 2V ~ 5V | ||
 | 5+ $7.3944 10+ $6.9014 15+ $6.6549 更多的价格 | 19,827 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 | 2.7V ~ 5.5V | I²C, 2-Wire Serial | Clock/Calendar | Leap Year | HH:MM:SS (24 hr) | YY-MM-DD-dd | 2V ~ 3.5V | 70µA @ 2.7V ~ 5.5V | ||
 | 5+ $0.8028 10+ $0.7493 15+ $0.7225 更多的价格 | 19,634 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) | 1.3V ~ 4.4V | I²C, 2-Wire Serial | Clock/Calendar | Leap Year | HH:MM:SS (24 hr) | YY-MM-DD-dd | - | 0.7µA ~ 0.95µA @ 3.6V ~ 4.4V | ||
 | 5+ $1.3732 10+ $1.2817 15+ $1.2359 更多的价格 | 19,400 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 64B, 1Kb | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 1.8V ~ 5.5V | 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 | 1.3V ~ 5.5V | 1.2µA @ 3.3V | ||
 | 5+ $3.6972 10+ $3.4507 15+ $3.3275 更多的价格 | 19,178 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | RX8900CE | Surface Mount | -40°C ~ 85°C | - | 10-SMD, No Lead | 10-SMD | 2.5V ~ 5.5V | I²C | Clock/Calendar | Alarm | HH:MM:SS (24 hr) | YY-MM-DD-dd | 1.6V ~ 5.5V | 1.4µA ~ 1.5µA @ 3V ~ 5V | ||
| 5+ $0.5599 10+ $0.5225 15+ $0.5039 更多的价格 | 19,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 64B | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 1.8V ~ 5.5V | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 5.5V | 1.2µA @ 3.3V | ||
 | 5+ $1.9099 10+ $1.7825 15+ $1.7189 更多的价格 | 18,899 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-MSOP | 1.8V ~ 3.6V | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | 0.65µA @ 1.8V | ||
 | 5+ $2.7465 10+ $2.5634 15+ $2.4718 更多的价格 | 18,466 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 64B | 8-TSSOP (0.173", 4.40mm Width) | 8-TSSOP | 1.8V ~ 5.5V | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 5.5V | 1.2µA @ 3.3V | ||
 | 5+ $0.7394 10+ $0.6901 15+ $0.6655 更多的价格 | 17,800 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 56B | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-uMAX/uSOP | 3V ~ 5.5V | I²C, 2-Wire Serial | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 3.7V | 125µA ~ 200µA @ 3.63V ~ 5.5V | ||
| 5+ $0.7394 10+ $0.6901 15+ $0.6655 更多的价格 | 17,800 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 56B | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-uMAX/uSOP | 3V ~ 5.5V | I²C, 2-Wire Serial | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 3.7V | 125µA ~ 200µA @ 3.63V ~ 5.5V | ||
| 5+ $9.5070 10+ $8.8732 15+ $8.5563 更多的价格 | 17,734 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | Timekeeper® | Surface Mount | -40°C ~ 85°C | - | 16-VFQFN Exposed Pad | 16-QFN (3x3) | 1.3V ~ 4.4V | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Watchdog Timer | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | - | 0.7µA ~ 0.95µA @ 1.3V ~ 4.4V | ||
| 5+ $3.1690 10+ $2.9577 15+ $2.8521 更多的价格 | 16,850 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 | 1.71V ~ 5.5V | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Trickle-Charger | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 3.7V | 200µA @ 1.71V ~ 5.5V | ||
 | 5+ $4.2254 10+ $3.9437 15+ $3.8028 更多的价格 | 16,280 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 64B, 1Kb | 8-WFDFN Exposed Pad | 8-TDFN (2x3) | 1.8V ~ 5.5V | 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 | 1.3V ~ 5.5V | 1.2µA @ 3.3V | ||
| 5+ $0.8451 10+ $0.7887 15+ $0.7606 更多的价格 | 16,083 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 64B, 1Kb | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 1.8V ~ 5.5V | 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 | 1.3V ~ 5.5V | 1.2µA @ 3.3V | ||
| 5+ $1.9014 10+ $1.7746 15+ $1.7113 更多的价格 | 15,236 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 56B | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 4.5V ~ 5.5V | I²C, 2-Wire Serial | Clock/Calendar | Leap Year, NVSRAM | HH:MM:SS (24 hr) | YY-MM-DD-dd | 2.5V ~ 3.5V | 100µA (Typ) @ 4.5V ~ 5.5V | ||
 | 5+ $0.5493 10+ $0.5127 15+ $0.4944 更多的价格 | 15,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | - | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 3V ~ 3.6V | I²C, 2-Wire Serial | Clock/Calendar | Leap Year, Square Wave Output, Trickle-Charger | HH:MM:SS (24 hr) | YY-MM-DD-dd | 1.4V ~ 3.6V | 100µA @ 3.3V | ||
 | 5+ $7.8169 10+ $7.2958 15+ $7.0352 更多的价格 | 15,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | - | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 2.3V ~ 5.5V | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Square Wave Output | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2.3V ~ 5.5V | 130µA ~ 200µA @ 3.63V ~ 5.5V | ||
| 5+ $1.7746 10+ $1.6563 15+ $1.5972 更多的价格 | 15,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 56B | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-uMAX/uSOP | 1.71V ~ 5.5V | I²C, 2-Wire Serial | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 5.5V | 100µA @ 200µA @ 1.89V ~ 5.5V | ||
| 5+ $2.7465 10+ $2.5634 15+ $2.4718 更多的价格 | 15,000 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 | 1.8V ~ 5.5V | I²C, 2-Wire Serial | Clock/Calendar | Alarm, Leap Year, Square Wave Output | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | 0.6µA @ 1.3V ~ 1.8V |
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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