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2,570
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Current - Timekeeping (Max)
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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 | Memory Size | Voltage - Supply | Package / Case | Supplier Device Package | Interface | Grade | Type | Features | Time Format | Date Format | Voltage - Supply, Battery | Current - Timekeeping (Max) | Qualification |
|---|
 | 1+ $13.0500 5+ $12.1800 10+ $11.3100 更多的价格 | 128,100 现货 可以立即发货 发货地: 深圳 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | - | 2.3V ~ 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 | 2.3V ~ 5.5V | 130µA ~ 200µA @ 3.63V ~ 5.5V | - | ||
| 1+ $3.7500 5+ $3.5000 10+ $3.2500 更多的价格 | 126,000 现货 可以立即发货 发货地: 深圳 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 31B | 2V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 3-Wire Serial | Clock/Calendar | Leap Year, NVSRAM, Trickle-Charger | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2V ~ 5.5V | 0.3µA ~ 1µA @ 2V ~ 5V | ||||
 | 1+ $4.5000 5+ $4.2000 10+ $3.9000 更多的价格 | 114,275 现货 可以立即发货 发货地: 深圳 | PCB Symbol, Footprint & 3D Model | Timekeeper® | Surface Mount | -40°C ~ 85°C | - | 1.5V ~ 4.4V | 16-VFQFN Exposed Pad | 16-QFN (3x3) | I²C, 2-Wire Serial | - | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Watchdog Timer | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | - | 0.9µA ~ 1.1µA @ 1.5V ~ 4.4V | - | ||
| 1+ $3.7500 5+ $3.5000 10+ $3.2500 更多的价格 | 99,500 现货 可以立即发货 发货地: 深圳 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 31B | 2V ~ 5.5V | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | 3-Wire Serial | - | Clock/Calendar | Leap Year, NVSRAM, Trickle-Charger | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2V ~ 5.5V | 0.3µA ~ 1µA @ 2V ~ 5V | - | ||
 | 1+ $5.2500 5+ $4.9000 10+ $4.5500 更多的价格 | 88,704 现货 可以立即发货 发货地: 深圳 | 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 | Automotive | Clock/Calendar | Alarm | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | - | AEC-Q100 | ||
 | 1+ $2.2500 5+ $2.1000 10+ $1.9500 更多的价格 | 4,998 现货 可以立即发货 发货地: 深圳 | 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 | - | ||
| 1+ $3.3750 5+ $3.1500 10+ $2.9250 更多的价格 | 75,970 现货 可以立即发货 发货地: 深圳 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 56B | 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 | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2V ~ 3.5V | 200µA @ 5V | ||||
| 1+ $3.3750 5+ $3.1500 10+ $2.9250 更多的价格 | 75,970 现货 可以立即发货 发货地: 深圳 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 56B | 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 | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2V ~ 3.5V | 200µA @ 5V | - | ||
 | 1+ $2.4000 5+ $2.2400 10+ $2.0800 更多的价格 | 59,600 现货 可以立即发货 发货地: 深圳 | 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 | - | ||
 | 1+ $3.0000 5+ $2.8000 10+ $2.6000 更多的价格 | 55,084 现货 可以立即发货 发货地: 深圳 | 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 | - | ||
 | 1+ $6.0000 5+ $5.6000 10+ $5.2000 更多的价格 | 50,000 现货 可以立即发货 发货地: 深圳 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 64B, 1Kb | 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 | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.3V ~ 5.5V | 1.2µA @ 3.3V | - | ||
 | 1+ $4.2000 5+ $3.9200 10+ $3.6400 更多的价格 | 44,055 现货 可以立即发货 发货地: 深圳 | 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 | - | ||
 | 1+ $5.2500 5+ $4.9000 10+ $4.5500 更多的价格 | 43,505 现货 可以立即发货 发货地: 深圳 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | - | 3V ~ 3.6V | 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 | 1.4V ~ 3.6V | 65µA @ 3.3V | - | ||
 | 1+ $12.0000 5+ $11.2000 10+ $10.4000 更多的价格 | 42,639 现货 可以立即发货 发货地: 深圳 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 31B | 2V ~ 5.5V | 6-WDFN Exposed Pad | 6-TDFN (3x3) | I²C, 2-Wire Serial | - | Clock/Calendar | Leap Year, NVSRAM | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | 0.63µA ~ 1.7µA | - | ||
 | 1+ $2.4000 5+ $2.2400 10+ $2.0800 更多的价格 | 40,000 现货 可以立即发货 发货地: 深圳 | 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 | - | ||
 | 1+ $33.0000 5+ $30.8000 10+ $28.6000 更多的价格 | 40,000 现货 可以立即发货 发货地: 深圳 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C (TA) | 64B | 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 | HH:MM:SS (24 hr) | YY-MM-DD-dd | 1.6V ~ 5.5V | 1.2µA ~ 2µA @ 1.6V ~ 5.5V | - | ||
| 1+ $14.0250 5+ $13.0900 10+ $12.1550 更多的价格 | 36,710 现货 可以立即发货 发货地: 深圳 | 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 | - | ||
 | 1+ $8.2500 5+ $7.7000 10+ $7.1500 更多的价格 | 36,390 现货 可以立即发货 发货地: 深圳 | 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 | - | ||
 | 1+ $34.2000 5+ $31.9200 10+ $29.6400 更多的价格 | 34,919 现货 可以立即发货 发货地: 深圳 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | -40°C ~ 85°C | 512B | 1.8V ~ 4.2V | 16-SOIC (0.295", 7.50mm Width) | 16-SO | I²C, 2-Wire Serial | - | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.8V ~ 4.2V | 1.5µA @ 3.3V | - | ||
 | 1+ $9.0000 5+ $8.4000 10+ $7.8000 更多的价格 | 32,635 现货 可以立即发货 发货地: 深圳 | 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 |
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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