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DS1302SN
+Lista de MateriaisIC RTC CLK/CALENDAR SER 8-SOIC
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FabricanteAnalog Devices Inc./Maxim Integrated
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Peça do Fabricante #DS1302SN
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Ficha Técnica DS1302SN DataSheet
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Pacote SOIC-8
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Especificações
| Atributo | Valor |
| Supplier | Analog Devices Inc./Maxim Integrated |
| Package | Tube |
| ProductStatus | Active |
| Type | Clock/Calendar |
| Features | Leap Year, NVSRAM, Trickle-Charger |
| MemorySize | 31B |
| TimeFormat | HH:MM:SS (12/24 hr) |
| DateFormat | YY-MM-DD-dd |
| Interface | 3-Wire Serial |
| Voltage-Supply | 2V ~ 5.5V |
| Voltage-SupplyBattery | 2V ~ 5.5V |
| Current-Timekeeping(Max) | 0.3µA ~ 1µA @ 2V ~ 5V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.209, 5.30mm Width) |
Visão Geral
Description
The DS1302SN communicates with a microcontroller through a simple serial interface, which includes features such as a clock pin, data input/output pin, and reset pin. Its low power consumption makes it suitable for battery-operated devices. Additionally, its dual powers supply pins allow for seamless switching between the main power source and a backup battery.
In summary, the DS1302SN is a versatile RTC chip useful for applications needing accurate timekeeping and efficient power management. Its design suits a range of applications, from consumer electronics to industrial systems, where maintaining accurate time is essential.
Equivalent
Features
1. Timekeeping: It keeps track of seconds, minutes, hours, day, date, month, and year, with leap-year compensation up to 2100.
2. Communication: Uses a simple serial interface for communication, compatible with microcontrollers.
3. Battery Backup: Can operate with a secondary power source to maintain timekeeping even when the primary power is off.
4. Trickle-Charge Capability: Has an integrated trickle charger for recharging a connected backup battery.
5. Low Power Consumption: Consumes very little power, making it ideal for battery-operated devices.
6. Operating Voltage: Typically operates within a voltage range of 2.0V to 5.5V.
7. Data Transfer: Supports burst mode data transfer for efficient communication.
8. Temperature Range: Operates in a wide temperature range, typically from -40°C to +85°C.
9. Compact Package: Available in small, space-saving packages suitable for portable applications.
These features make the DS1302SN an efficient choice for applications requiring accurate timekeeping and low power consumption.
Pinout
The DS1302SN comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of its pin functions:
1. VCC2 (Pin 1): Backup supply input for maintaining the time and date when the main power is off.
2. X1 (Pin 2): Connection for a 32.768kHz crystal oscillator.
3. X2 (Pin 3): Connection for a 32.768kHz crystal oscillator (paired with X1).
4. GND (Pin 4): Ground.
5. VCC1 (Pin 5): Primary power supply input.
6. SCLK (Pin 6): Serial clock input for synchronizing data transfer.
7. I/O (Pin 7): Data input/output for serial data transfer.
8. CE (Pin 8): Chip enable; activates the chip for communication.
These pins facilitate the clock's operation, communication, and power management.
Manufacturer
Application
1. Consumer Electronics: Devices like digital cameras, camcorders, and home appliances for time-stamping and scheduling.
2. Industrial Automation: Systems needing precise time management for logging and control processes.
3. Computers and Peripherals: Maintaining system time and date in PCs, servers, and network equipment.
4. Telecommunications: Timekeeping in network devices and communication systems.
5. Embedded Systems: Microcontroller-based applications requiring low-power timekeeping.
6. IoT Devices: Efficient time management in connected devices with limited power sources.
Its low power consumption and ease of integration make it suitable for battery-operated devices.