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RX-8025NB
Product Model: RX-8025NB
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製造商零件號 # : RX-8025NB
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包裝/封裝: 22-SON
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製造商: EPSON
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產品分類 : Real Time Clocks
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RX-8025NB 數據表
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詳細說明
The RX-8025NB is a real-time clock module manufactured by Epson. It features an ultra-low power consumption design, making it ideal for battery-operated devices such as wearables, IoT devices, and other portable electronics. The module operates on a supply voltage of 1.3V to 5.5V and has a timekeeping accuracy of ±20ppm at 25°C. The RX-8025NB is equipped with a built-in crystal oscillator, eliminating the need for an external crystal. It also has a built-in EEPROM for storing user data and settings, making it a versatile and flexible solution for various applications. The module supports I2C/SPI serial interfaces for communication with the host microcontroller.In terms of dimensions, the RX-8025NB has a compact package size of 5.0mm x 3.2mm x 1.1mm, making it suitable for space-constrained designs. The module operates over a wide temperature range of -40°C to 85°C, ensuring reliable performance in a range of environmental conditions.
主要特徵
- Low power consumption
- Accuracy of ±5ppm
- Operating voltage range of 1.1V to 5.5V
- Real-time clock/calendar functionality
- Wide operating temperature range of -40°C to +85°C
- 3-wire serial interface
應用
- Automotive electronics
- Consumer electronics
- Industrial equipment
- Telecommunications equipment
- Medical devices
- Security systems
- Home appliances
- Power meters
- GPS devices
- Data loggers
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Rohs Code | Yes | Part Life Cycle Code | Active |
| Part Package Code | SON | Pin Count ! | 20 |
| Reach Compliance Code | not_compliant | ECCN Code | EAR99 |
| HTS Code ! | 8542.39.00.01 | Clock Frequency-Max | 0.032 MHz |
| External Data Bus Width | Information Access Method | I2C | |
| JESD-30 Code | R-PDSO-N22 | JESD-609 Code | e3 |
| Number of Terminals | 22 | Number of Timers | |
| Operating Temperature-Max | 85 °C | Operating Temperature-Min | -40 °C |
| Package Body Material | PLASTIC/EPOXY | Package Code | SON |
| Package Shape | RECTANGULAR | Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 | Qualification Status ! | Not Qualified |
| Seated Height-Max | 1.4 mm | Supply Voltage-Max | 5.5 V |
| Supply Voltage-Min | 1.7 V | Supply Voltage-Nom | 3 V |
| Surface Mount ! | YES | Technology | CMOS |
| Temperature Grade ! | INDUSTRIAL | Terminal Finish | TIN |
| Terminal Form ! | NO LEAD | Terminal Pitch ! | 0.5 mm |
| Terminal Position | DUAL | Width | 4.8 mm |
| uPs/uCs/Peripheral ICs Type | TIMER, REAL TIME CLOCK |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is RX-8025NB?
The RX-8025NB is a high-accuracy real-time clock module designed by Epson. It is commonly used in electronic devices that require precise timekeeping and calendar functions, such as digital clocks, data loggers, and IoT devices.
How Does RX-8025NB Work?
The RX-8025NB operates as a real-time clock module with an integrated crystal oscillator circuit for accurate timekeeping. It communicates with a microcontroller or system through a serial interface and provides the current time and date information. The module features low power consumption and backup power support for maintaining time data during power loss.
How Many Pins does RX-8025NB have and What are the Functions of the Pinout Configuration?
The RX-8025NB typically comes in a small package with several input and output pins:
- VCC: Power supply pin.
- GND: Ground pin.
- SCL, SDA: Serial clock and data pins for communication.
- X1, X2: Connections for the integrated crystal oscillator.
- VBAT: Backup battery pin for maintaining time data.
What are the Pros and Cons of RX-8025NB?
Pros:
- High Accuracy: Provides precise timekeeping with low error margins.
- Low Power Consumption: Operates efficiently, suitable for battery-powered devices.
- Serial Interface: Easy integration with microcontrollers and digital systems.
- Backup Power Support: Maintains time data during power interruptions.
- Compact Size: Small form factor for space-constrained designs.
Cons:
- Cost: Higher cost compared to basic clock modules due to precision and features.
- Complexity: May require configuration and calibration for optimal performance.
- External Crystal: Relies on an external crystal oscillator for timekeeping accuracy.
Are There Any Equivalents/Alternatives to RX-8025NB for Recommendation?
- The DS3231 from Maxim Integrated is a popular alternative real-time clock module with high accuracy.
- Alternatives to the RX-8025NB include the MCP7940N from Microchip Technology and the RV-1805-C3 from Micro Crystal AG.
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