PCA21125
description
The PCA21125 is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low-power consumption and an operating temperature up to 125 C. Data is transferred via a Serial Peripheral Interface (SPI-bus) with a maximum data rate of 6.0 Mbit/s. Alarm and timer functions are also available with the possibility to generate a wake-up signal on the interrupt pin.
For a selection of NXP Real-Time Clocks, see Table 46 on page 41
2. Features and benefits
- AEC Q100 pliant for automotive applications.
- Provides year, month, day, weekday, hours, minutes, and seconds based on
32.768 k Hz quartz crystal
- Resolution: seconds to years
- Clock operating voltage: 1.3 V to 5.5 V
- Low supply current: typical 0.8 A at Tamb = 25 C
- 4-line SPI-bus with separate, but binable data input and output
- Serial interface at VDD = 1.6 V to 5.5 V
- 1 second or 1...
