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Description
The RS5C348A-E2-F is a CMOS real-time clock IC connected to the CPU by four signal lines. It is designed to perform serial transmission of time and calendar data to the CPU. This IC features a periodic interrupt circuit with six selectable interrupts ranging from 0.5 seconds to 1 month. It also has two alarm interrupt circuits that generate interrupt signals at preset times. The oscillation circuit is driven under constant voltage, resulting in a small frequency fluctuation and low time keeping current. The oscillation halt sensing circuit can be used to judge the validity of internal data during power-on events. This model comes in an ultra-compact SSOP10 package.
Specifications and features
- Timekeeping supply voltage ranging from 1.45 to 5.5V
- Low power consumption
- Only four signal lines required for connection to the CPU
- Maximum clock frequency of 2 MHz (with VDD = 5V)
- Time counters and calendar counters in BCD format
- Interrupt circuit with interrupts ranging from 0.5 seconds to 1 month
- Two alarm interrupt circuits
- 32-kHz clock output circuit
- The Rx5C348A can disable 32-kHz clock output, while Rx5C348B cannot
- Oscillation halt sensing circuit
- Supply voltage monitoring circuit with two threshold settings
- Automatic identification of leap years up to the year 2099
- Selectable 12-hour and 24-hour mode settings
- Built-in oscillation stabilization capacitors
Application Scenarios
This real-time clock IC can be used in a variety of electronic devices that require accurate timekeeping and calendar functions. It is commonly used in IoT devices, wearables, and consumer electronics.
Comparison
Advantages- Low power consumption
- Compact size
- Wide operating voltage range
- High precision oscillation adjustment
- Multiple interrupt options
Disadvantages- The Rx5C348B cannot disable 32-kHz clock output
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Datenblatt
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Shopping guide
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Beliebte Teile der gleichen Art
- Datasheet: Download RS5C348A-E2-F
- Chipdaten Teil: CD94-RS5C348A-E2-F
- Lagerhaus: China, Hongkong
- Versenden: Innerhalb von 24 Stunden
- Kostenloser Versand: Yes
- Bevorzugter Versand: Yes, 3-5 days
- Letzte Aktualisierung: 2024/07/01 13:01 +0800
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