EM Microelectronic EM3020
The V3020 is a low power CMOS real time clock. The device is accessed by chip select ( CS ) with read and write control timing provided by either RD and WR pulse (Intel CPU) or DS with advanced R/ W (Motorola CPU).| Part No. | EM3020 |
|---|---|
| Datasheet | EM3020 Download |
| Manufacturer |  EM Microelectronic |
| Description | Ultra Low Power 1-Bit 32 kHz RTC |
| Buy | Stock & Price |
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. The V3020 has no busy states and there is no danger of a clock update while accessing. 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 Typical Operating Configuration
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 comm...
