V3021
Ultra Low Power 1-Bit 32 kHz RTC
Features
Supply current typically 800 nA at 3V
50 ns access time with 50 pF load capacitance
Fully operational from 2.0V to 5.5V
No busy states or danger of a clock update while
accessing
Serial communication on one line of a standard
parallel data bus or over a conventional 3 wire serial
interface
Interface compatible with both Intel and Motorola
Seconds, minutes, hours, day of month, month, year,
week day and week number in BCD format
Leap year and week number correction
Time set lock mode to prevent unauthorized setting of
the current time or date
Oscillator stability 0.3 ppm / volt
No external capacitor needed
Frequency measurement and test modes
Temperature range: -40°C to +85°C
On request extended temperature range, -40°C to
+125°C
Packages DIP8 and SO8
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