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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- Overview
- The PCF2129 is a CMOS 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 PCF2129 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.
- MoreLess
- ## Features
- * Operating temperature range from -40 °C to +85 °C
- * Temperature Compensated Crystal Oscillator (TCXO) with integrated capacitors
- * Typical accuracy:
- * PCF2129AT: ±3 ppm from -15 °C to +60 °C
- * PCF2129T: ±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
- * 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
- ## Target 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
- ## Features
PCF2129AT Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Number of Pins | 20 Pin |
| Case/Package | SO-20 |
| Power Dissipation | 300 mW |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Power Dissipation (Max) | 300 mW |
| Show | |
| Product Lifecycle Status | Unknown |
| RoHS | Supplier Unconfirmed |
| Lead-Free Status | Lead Free |
| ECCN Code | EAR99 |
Order guide
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- You can choose whether shipping charges will be charged through your shipping account or by us.
- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
Contact Us
If you have any problem,please email to sales@manychip.com, we will response as soon as possisble.
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