DESCRIPTION
The V3020 is a low power CMOS real time clock. Data is transmitted serially as 4 address bits and 8 data bits, over one line of a standard parallel data bus. Data can also be transmitted over a conventional 3 wire serial interface having CLK, data I/O and strobe. Supply current is typically 390 nA at VDD = 3.0V. Battery operation is supported by complete functionality down to 1.2V. The oscillator is typically 0.3 ppm/V. APPLICATIONS
Utility meters Battery operated and portable equipment Consumer electronics White/brown goods Pay phones Cash registers Personal computers Programmable controller systems Data loggers Automotive systems FEATURES
Supply current typically 390 nA at 3V 50 ns access time with 50 pF load capacitance Fully operational from 1.2V 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 compat...
EM Microelectronic
