Rainbow-electronics DS12C887 Manuel d'utilisateur Page 4
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- Table des matières
- MARQUE LIVRES
- DS12C887 1
- Real Time Clock 1
- OPERATION 2
- SIGNAL DESCRIPTIONS 2
- RTC ADDRESS MAP 5
- CONTROL REGISTERS 7
- REGISTER A 7
- REGISTER B 8
- REGISTER C 9
- REGISTER D 9
- CENTURY REGISTER 10
- NONVOLATILE RAM 10
- INTERRUPTS 10
- OSCILLATOR CONTROL BITS 11
- SQUARE WAVE OUTPUT SELECTION 11
- PERIODIC INTERRUPT SELECTION 11
- UPDATE CYCLE 12
- ABSOLUTE MAXIMUM RATINGS* 13
- CAPACITANCE (tA = 25°C) 13
- 14 of 19 14
- WR High 14
- WR , or 14
- OUTPUT LOAD Figure 4 15
- 16 of 19 16
- POWER DOWN / POWER UP TIMING 17
- (tA=25°C) 18
- Warning: 18
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