Overview
The PCA2129T/Q900/2,51 is a highly accurate Real Time Clock (RTC) and calendar chip manufactured by NXP USA Inc. This device is designed for automotive and industrial applications, offering high precision timekeeping and a range of advanced features. It integrates a Temperature Compensated Crystal Oscillator (TCXO) with a 32.768 kHz quartz crystal, ensuring very high accuracy and low power consumption. The PCA2129T/Q900/2,51 is AEC-Q100 compliant, making it suitable for demanding automotive environments.
Key Specifications
| Attribute | Specification |
|---|---|
| Date Format | DW:DM:M:Y |
| Time Format | HH:MM:SS |
| Interface | I2C, SPI |
| Supply Voltage-Nom | 1.8V to 4.2V |
| Temperature Grade | Industrial |
| Operating Temp Range | -40°C to +85°C |
| Storage Temperature Range | -55°C to +85°C |
| Moisture Sensitivity Level | 3 |
| Package Style | SOIC-16 |
| Mounting Method | Surface Mount |
| Power Consumption | Typical 0.70 μA at VDD = 3.3 V |
Key Features
- Temperature Compensated Crystal Oscillator (TCXO) with integrated capacitors for high accuracy.
- Typical accuracy: ±3 ppm from -30°C to +80°C.
- Integration of a 32.768 kHz quartz crystal and oscillator in the same package.
- Provides year, month, day, weekday, hours, minutes, seconds, and leap year correction.
- Timestamp function with interrupt capability and detection of two different events on one multilevel input pin.
- Two line bidirectional 400 kHz Fast-mode I2C-bus interface and 3 line SPI-bus with separate data input and output (maximum speed 6.5 Mbit/s).
- Battery backup input pin and switch-over circuitry, battery backed output voltage, and battery low detection function.
- Power-On Reset Override (PORO) and oscillator stop detection function.
- Interrupt output (open-drain), programmable 1 second or 1 minute interrupt, programmable watchdog timer with interrupt, and programmable alarm function with interrupt capability.
- Programmable square wave output.
Applications
The PCA2129T/Q900/2,51 is designed for various applications, including:
- Automotive systems: Due to its AEC-Q100 compliance, it is suitable for use in automotive environments.
- Industrial controllers: Its high accuracy and low power consumption make it ideal for industrial control systems.
- Smart meters: The device's precision and low power features are beneficial for smart meter applications.
- IoT devices: It is a reliable choice for Internet of Things (IoT) devices that require accurate timekeeping.
Q & A
- What is the PCA2129T/Q900/2,51 used for?
The PCA2129T/Q900/2,51 is a Real Time Clock (RTC) and calendar chip used for accurate timekeeping in automotive, industrial, and IoT applications.
- What is the operating voltage range of the PCA2129T/Q900/2,51?
The operating voltage range is from 1.8V to 4.2V.
- What interfaces does the PCA2129T/Q900/2,51 support?
The device supports both I2C and SPI interfaces.
- What is the typical accuracy of the PCA2129T/Q900/2,51?
The typical accuracy is ±3 ppm from -30°C to +80°C.
- Is the PCA2129T/Q900/2,51 AEC-Q100 compliant?
Yes, it is AEC-Q100 compliant, making it suitable for automotive applications.
- What is the power consumption of the PCA2129T/Q900/2,51?
The typical power consumption is 0.70 μA at VDD = 3.3 V.
- Does the PCA2129T/Q900/2,51 have a battery backup feature?
Yes, it has a battery backup input pin and switch-over circuitry, along with battery backed output voltage and battery low detection function.
- What are the key features of the PCA2129T/Q900/2,51's timestamp function?
The timestamp function includes interrupt capability and detection of two different events on one multilevel input pin.
- What are the programmable features of the PCA2129T/Q900/2,51?
The device includes programmable 1 second or 1 minute interrupt, programmable watchdog timer with interrupt, programmable alarm function with interrupt capability, and programmable square wave output.
- What is the package style of the PCA2129T/Q900/2,51?
The package style is SOIC-16.
- What is the mounting method for the PCA2129T/Q900/2,51?
The mounting method is Surface Mount.
