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 | Voltage - Supply | Package / Case | Supplier Device Package | Interface | Grade | Type | Features | Memory Size | Time Format | Date Format | Voltage - Supply, Battery | Current - Timekeeping (Max) | Qualification |
|---|
 | 5+ $2.9577 10+ $2.7606 15+ $2.6620 更多的价格 | 10,175 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 3V ~ 5.5V | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-uMAX/uSOP | I²C, 2-Wire Serial | - | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | 56B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 5.5V | 125µA ~ 200µA @ 3V ~ 5.5V | - | ||
 | 5+ $0.8451 10+ $0.7887 15+ $0.7606 更多的价格 | 10,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 3V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | I²C, 2-Wire Serial | - | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | 56B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 3.7V | 125µA ~ 200µA @ 3.63V ~ 5.5V | - | ||
| 5+ $2.7465 10+ $2.5634 15+ $2.4718 更多的价格 | 10,000 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 | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | I²C, 2-Wire Serial | - | Clock/Calendar | Leap Year, Trickle-Charger | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 1.3V ~ 5.5V | 150µA @ 5.5V | - | ||
| 5+ $4.2254 10+ $3.9437 15+ $3.8028 更多的价格 | 10,000 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 | 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 | 1.3V ~ 5.5V | 150µA @ 5.5V | - | ||
 | 5+ $6.3380 10+ $5.9155 15+ $5.7042 更多的价格 | 10,000 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 ~ 3.6V | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | 10-MSOP | SPI | - | Clock/Calendar | Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID | 64B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 3.6V | 1µA @ 1.8V ~ 3.6V | - | ||
 | 5+ $0.8451 10+ $0.7887 15+ $0.7606 更多的价格 | 10,000 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-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-TSSOP | 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 | - | ||
| 5+ $0.8451 10+ $0.7887 15+ $0.7606 更多的价格 | 10,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 3V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | I²C, 2-Wire Serial | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | 56B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 3.7V | 125µA ~ 200µA @ 3.63V ~ 5.5V | ||||
 | 5+ $23.2394 10+ $21.6901 15+ $20.9155 更多的价格 | 9,900 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 125°C | 1.8V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | I²C, 2-Wire Serial | Automotive | 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 | AEC-Q100 | ||
 | 5+ $24.2958 10+ $22.6761 15+ $21.8662 更多的价格 | 9,900 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-WFDFN Exposed Pad | 8-TDFN (2x3) | 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+ $1.0563 10+ $0.9859 15+ $0.9507 更多的价格 | 9,899 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Through Hole | 0°C ~ 70°C | 2V ~ 5.5V | 8-DIP (0.300", 7.62mm) | 8-PDIP | 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+ $0.4437 10+ $0.4141 15+ $0.3993 更多的价格 | 9,543 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 4.5V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | I²C, 2-Wire Serial | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | 56B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2V ~ 3.5V | 200µA @ 5V | ||||
 | 5+ $10.5634 10+ $9.8592 15+ $9.5070 更多的价格 | 9,202 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 4.75V ~ 5.5V | 28-SOIC (0.295", 7.50mm Width) | 28-SOIC | Parallel | - | Clock/Calendar | Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2.3V ~ 4V | 1.5mA (Typ) @ 4.5 V ~ 5.5 V | - | ||
| 5+ $2.5352 10+ $2.3662 15+ $2.2817 更多的价格 | 9,000 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 ~ 3.6V | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | 10-MSOP | SPI | - | Clock/Calendar | Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID | 64B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 3.6V | 1µA @ 1.8V ~ 3.6V | - | ||
| 5+ $1.4366 10+ $1.3408 15+ $1.2930 更多的价格 | 9,000 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 | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-uMAX/uSOP | 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+ $16.0563 10+ $14.9859 15+ $14.4507 更多的价格 | 9,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | 0°C ~ 70°C | 2.3V ~ 5.5V | 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 | 110µA ~ 170µA @ 3.63V ~ 5.5V | - | ||
 | 5+ $3.3169 10+ $3.0958 15+ $2.9852 更多的价格 | 9,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C (TA) | 1V ~ 5.5V | 10-VCDFN | 10-SON (3.7x2.5) | I²C, 2-Wire Serial | - | Clock/Calendar | Alarm, Leap Year, Programmable Clock Output, Timer | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | - | 0.35µA @ 3V | - | ||
| 5+ $14.7887 10+ $13.8028 15+ $13.3099 更多的价格 | 9,000 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 2.3V ~ 5.5V | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC | 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+ $4.6479 10+ $4.3380 15+ $4.1831 更多的价格 | 8,718 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+ $1.4577 10+ $1.3606 15+ $1.3120 更多的价格 | 8,679 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 1.71V ~ 5.5V | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-uMAX/uSOP | 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+ $10.5634 10+ $9.8592 15+ $9.5070 更多的价格 | 8,600 可用 可以立即发货 发货地: HK | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 1.8V ~ 5.5V | 8-WFDFN Exposed Pad | 8-TDFN (2x3) | I²C, 2-Wire Serial | Automotive | 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 | AEC-Q100 |
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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