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BQ32002DR
+БОМIC RTC CLK/CALENDAR I2C 8-SOIC
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ПроизводительТехасские инструменты
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Мфр. Часть #BQ32002DR
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Пакет SOIC (D)-8
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В наличии4072
365 Дни гарантии качества
7*24 часы обслуживания каранти
90-гарантия послепродажного дня
Гарантия подлинного продукта
Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| Type | Clock/Calendar |
| Features | Leap Year, Square Wave Output, Trickle-Charger |
| TimeFormat | HH:MM:SS (24 hr) |
| DateFormat | YY-MM-DD-dd |
| Interface | I²C, 2-Wire Serial |
| Voltage-Supply | 3V ~ 3.6V |
| Voltage-SupplyBattery | 1.4V ~ 3.6V |
| Current-Timekeeping(Max) | 65µA @ 3.3V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Обзор
Description
Key features of the BQ32002DR include low power consumption, making it suitable for battery-operated devices, and a wide operating voltage range. It typically operates on a 32.768 kHz quartz crystal, providing accurate timekeeping with an output in seconds, minutes, hours, day of the week, date, month, and year, including leap year compensation up to the year 2099.
The device interfaces with a host controller through an I2C bus, allowing for easy integration into systems. It also offers programmable square-wave outputs, an integrated power-fail and battery switchover function, and a trickle-charge capability for rechargeable backup batteries.
Overall, the BQ32002DR is a reliable choice for maintaining time and date functions across a wide range of electronic applications.
Equivalent
1. DS3231SN - Maxim Integrated
2. MCP7940N - Microchip Technology
3. PCF8523 - NXP Semiconductors
4. RV-3028-C7 - Micro Crystal
5. RV-8523-C3 - Micro Crystal
These alternatives offer similar features like timekeeping, low power consumption, and I2C interface but may vary in additional functionalities and specifications. Always check compatibility and specific requirements before selecting an alternative.
Features
1. Timekeeping: It provides timekeeping functions with a precision quartz crystal oscillator. It handles seconds, minutes, hours, day, date, month, and year with leap year compensation up to 2100.
2. Interface: The module communicates via a standard I2C interface, making it easy to integrate with microcontrollers and other digital devices.
3. Backup Power: It includes an integrated power management circuit that allows it to switch to a backup power source, such as a coin cell battery, when the main power is lost, thus maintaining timekeeping.
4. Low Power Consumption: Designed for low power consumption, it ensures longer battery life, making it suitable for battery-operated devices.
5. Programmable Alarm and Timer: The RTC includes programmable alarms and a countdown timer feature, enhancing its utility in time-sensitive applications.
6. Temperature Compensation: It offers optional temperature compensation for improved accuracy over a range of temperatures.
These features make the BQ32002DR suitable for a wide range of applications where accurate and reliable timekeeping is essential.
Pinout
1. VCC (Pin 8): This is the power supply input pin.
2. GND (Pin 4): This is the ground pin.
3. SDA (Pin 5): The Serial Data line for I2C communication.
4. SCL (Pin 6): The Serial Clock line for I2C communication.
5. INT (Pin 7): The interrupt output that can be used for alarm or timer functions.
6. VBAT (Pin 3): Battery backup supply input to maintain clock operation during power loss.
7. CLKOUT (Pin 1): Clock output, which can be programmed for square wave output.
8. NC (Pin 2): No connection.
The BQ32002DR is used for timekeeping functions and includes a calendar function, making it suitable for applications requiring time/date stamping and scheduling.
Manufacturer
Application
1. Consumer Electronics: Devices like digital cameras, DVRs, and home appliances for maintaining time and date.
2. Industrial Automation: Systems that require scheduling and timestamping for operations and data logging.
3. Healthcare Devices: Medical equipment needing reliable timekeeping for data records.
4. Telecommunications: For managing network time synchronization.
5. Automotive Systems: In vehicle infotainment and navigation systems for clock and calendar functions.
6. Embedded Systems: Any microcontroller-based systems where precise timekeeping is required.
These applications benefit from the IC's low power consumption and accurate timing capabilities.