V3020SO8A EMMICRO [EM Microelectronic - MARIN SA], V3020SO8A Datasheet - Page 15

• Manufacturer Part Number: V3020SO8A
• Description: Ultra Low Power 1-Bit 32 kHz RTC
• Manufacturer: EMMICRO [EM Microelectronic - MARIN SA]

Typical Applications
V3020 Interfaced with Intel CPU (RD/WR Pulse)
V3020 Interfaced with Motorola CPU (Advanced R/W)
3 Wire Serial Interface
Copyright © 2005, EM Microelectronic-Marin SA
1)
2)
R
With strobe low bits are written to the V3020, and with strobe high bits are read from the
V3020
For serial ports with byte transfer only, an address command cycle should be combined with
every data cycle to give 8 address bits and 8 data bits. For example to read the current
minutes, write address data F + 2 (1111 + 0011) and then read 8 data bits.
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V3020
Fig. 15
Fig. 16
Fig. 17