Timing is Everything

The timing is just right with Arrow Electronics and NXP Semiconductors. Arrow and NXP now offer the PCF2l27A/29A family of highly accurate real-time clocks/calendars (RTCs). Equipped with a temperature-compensated crystal oscillator (TCXO), these RTCs eliminate the need for a heated quartz or GPS frequency references. This high-precision, low-power technology, backed by the world-class services, solutions, and technical expertise of Arrow, will have your product to market in (almost) no time.

Key features and benefits of the NXP PCF2127A/29A:

• Outstanding clock accuracy (±3 ppm typical)
• Fully integrated quartz oscillator with 32.768 kHz quartz crystal
• Battery switch-over circuit
• Accurate switching
• Combo clock with oscillator available
• Very accurate time references
• Time-stamp function
• System reset generation
• 512 bytes of RAM (PCF2127)
• Factory calibrated
• Clock operating down to 1.2V
• Low supply current: 650 nA at 3V
• 1 MHz Fast-mode Plus I²C-bus and 6 MHz SPI interface

Applications:

• Utility meters
• Industrial applications
• HVAC equipment
• GPS, shorter cold start-up time (TTFF)
• Gaming machines
• Alarm systems
• Token for access control
• Cellular infrastructure

The NXP PCF2l27A/29A family of highly accurate real-time clocks/calendars is available from Arrow now. Don’t delay—take advantage of free samples now.