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20 Terminations3.3V 20 Pin PCF2127 Real Time ClocksTimers or RTCs SubcategoryAlarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer
- Manufacturer: NXP Semiconductors
- NO: 318-PCF2127AT/2Y
- Package: 20-SOIC (0.295, 7.50mm Width)
- Datasheet:
- Stock: 9557
- Description: 20 Terminations3.3V 20 Pin PCF2127 Real Time ClocksTimers or RTCs SubcategoryAlarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer (Kg)
- Delivery:
- Payment:
In Stock
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| Parameters | |
|---|---|
| Factory Lead Time | 7 Weeks |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.295, 7.50mm Width) |
| Surface Mount | YES |
| Operating Temperature | -40°C~85°C |
| Packaging | Tape & Reel (TR) |
| Published | 2003 |
| Feature | Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer |
| Part Status | Active |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Number of Terminations | 20 |
| Type | Clock/Calendar |
| Subcategory | Timers or RTCs |
| Technology | CMOS |
| Voltage - Supply | 1.8V~4.2V |
| Terminal Position | DUAL |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage | 3.3V |
| Terminal Pitch | 1.27mm |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Base Part Number | PCF2127 |
| Pin Count | 20 |
| JESD-30 Code | R-PDSO-G20 |
| Qualification Status | Not Qualified |
| Power Supplies | 2/4V |
| Interface | I2C, 2-Wire Serial |
| Memory Size | 512B |
| Number of Timers | 1 |
| Time Format | HH:MM:SS (12/24 hr) |
| Date Format | YY-MM-DD-dd |
| Current - Timekeeping (Max) | 1.5μA @ 3.3V |
| Time-Min | SECONDS |
| Interrupt Capability | Y |
| Voltage - Supply, Battery | 1.8V~4.2V |
| Volatile | YES |
| Information Access Method | I2C |
| Height Seated (Max) | 2.65mm |
| Length | 12.8mm |
| Width | 7.5mm |
| RoHS Status | ROHS3 Compliant |
PCF2127AT/2Y Description
The PCF2127AT/2Y 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.
PCF2127AT/2Y Features
UL Recognized Component
Operating temperature range from -40 ℃ to +85 ℃
Temperature Compensated Crystal Oscillator (TCXO) with integrated capacitors
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
512 bytes of general-purpose static RAM
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
Extra power fail detection function with input and output pins
Power-On Reset Override (PORO)
Oscillator stop detection function
Interrupt output (open-drain)
PCF2127AT/2Y 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
