PCA2129T/Q900/2,51
Clock & Timing
Technical Specifications
| Type | Description |
|---|---|
| Crystal Oscillator | Built-in |
| Alarm Output | Yes |
| Current - Supply | 700nA |
| Operating Temperature | -40°C~+85°C |
| Type | Description |
|---|---|
| Supply Voltage | 1.8V~4.2V |
| Features | Temperature compensation;Timestamp function;Locking and tamper-proof;Backup power management and battery charging;Battery low voltage detection;Periodic interrupt output;Watchdog timer;Alarm function;Programmable clock output |
| Package / Case | SO-16-300mil |
Product Introduction
The PCA2129 is a CMOS1 Real Time Clock (RTC) and calendar with an integrated Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz crystal optimized for very high accuracy and very low power consumption. The PCA2129 has a selectable I²C -bus or SPI-bus, a backup battery switch-over circuit, a programmable watchdog function, a timestamp function, and many other features.
Features
- UL Recognized Component (PCA2129T/Q900/2)
- AEC-Q100 compliant for automotive applications
- Operating temperature range from -40 ℃ to +85 ℃
- Temperature Compensated Crystal Oscillator (TCXO) with integrated capacitors
- Typical accuracy: ±3 ppm from -30 ℃ to +80 ℃
- 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 – detection of two different events on one multilevel input pin (for example, for tamper detection)
- Two line bidirectional 400 kHz Fast-mode I²C -bus interface
- 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
- Battery low detection function
- Power-On Reset Override (PORO)
- Oscillator stop detection function
- Interrupt output (open-drain)
- Programmable 1 second or 1 minute interrupt
- Programmable watchdog timer with interrupt
- Programmable alarm function with interrupt capability
- Programmable square output
- Clock operating voltage: 1.8 V to 4.2 V
- Low supply current: typical 0.70 μA at VDD = 3.3 V
Applications
- Electronic metering for electricity, water, and gas
- Precision timekeeping
- Access to accurate time of the day
- GPS equipment to reduce time to first fix
- Applications that require an accurate process timing
- Products with long automated unattended operation time
Datasheet
Alternative Parts
Common PCA2129T/Q900/2,51 alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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