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PCA8553DTT/AJ
Product Overview
Category: Integrated Circuit
Use: Real-time Clock (RTC)
Characteristics: Low power consumption, I2C interface
Package: TSSOP-14
Essence: Accurate timekeeping and calendar functions
Packaging/Quantity: Tape & Reel (3000 units per reel)
Specifications
- Supply Voltage: 1.0V to 5.5V
- Operating Temperature Range: -40°C to +85°C
- Timekeeping Current: 400nA at VDD = 3.0V, 25°C
- I2C-bus Interface
- Alarm Function with Interrupt Output
- Programmable Square-wave Output Signal
Detailed Pin Configuration
The PCA8553DTT/AJ has a total of 14 pins: 1. VDD 2. GND 3. SCL 4. SDA 5. INT/SQW 6. X1 7. X2 8. NC 9. A2 10. A1 11. A0 12. VBAT 13. VSS 14. SQW/OUT
Functional Features
- Low Power Consumption
- Battery Backup for Continuous Timekeeping
- Programmable Alarm Function
- I2C Interface for Communication
Advantages and Disadvantages
Advantages: - Wide Operating Voltage Range - Low Timekeeping Current - Small Package Size
Disadvantages: - Limited Number of Alarms - External Crystal Required for Accurate Timekeeping
Working Principles
The PCA8553DTT/AJ is a real-time clock IC that operates using an external crystal oscillator to maintain accurate timekeeping. It communicates with the microcontroller through the I2C interface and can be powered by a battery for continuous operation.
Detailed Application Field Plans
The PCA8553DTT/AJ is suitable for various applications requiring accurate timekeeping and calendar functions, such as: - Smart Home Automation Systems - Wearable Devices - Industrial Control Systems - Automotive Electronics
Detailed and Complete Alternative Models
- DS3231 - Real-Time Clock (RTC) IC
- MCP7940N - I2C Real-Time Clock/Calendar IC
- RV-1805-C3 - Ultra-Low Power RTC Module
In conclusion, the PCA8553DTT/AJ is a versatile real-time clock IC with low power consumption and essential features for accurate timekeeping and calendar functions. Its compact package and wide operating voltage range make it suitable for various electronic applications.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de PCA8553DTT/AJ en soluciones técnicas
What is PCA8553DTT/AJ? PCA8553DTT/AJ is a general-purpose I/O expander for the two-line bidirectional bus (I2C) designed for 2.3 V to 5.5 V VCC operation.
What are the key features of PCA8553DTT/AJ?
- 16 GPIOs
- Interrupt output
- Polarity inversion register
- Active-low interrupt output
How can PCA8553DTT/AJ be used in technical solutions? PCA8553DTT/AJ can be used to expand the number of I/Os available to a microcontroller, making it suitable for applications requiring additional GPIOs.
What is the maximum voltage rating for PCA8553DTT/AJ? The maximum voltage rating for PCA8553DTT/AJ is 5.5 V.
Does PCA8553DTT/AJ support I2C communication? Yes, PCA8553DTT/AJ supports I2C communication for interfacing with microcontrollers and other devices.
Can PCA8553DTT/AJ be used in battery-powered applications? Yes, PCA8553DTT/AJ is designed for low-power operation and can be used in battery-powered applications.
What is the typical operating current for PCA8553DTT/AJ? The typical operating current for PCA8553DTT/AJ is 1.5 mA.
Does PCA8553DTT/AJ have built-in pull-up resistors for I2C communication? Yes, PCA8553DTT/AJ has built-in pull-up resistors for I2C communication, simplifying the design of I2C buses.
Is PCA8553DTT/AJ compatible with 3.3 V microcontrollers? Yes, PCA8553DTT/AJ is compatible with 3.3 V microcontrollers, making it versatile for different system designs.
What are the typical applications of PCA8553DTT/AJ? Typical applications of PCA8553DTT/AJ include LED dimming control, keypad scanning, and general-purpose I/O expansion in various electronic systems.