Rainbow-electronics DS1672 Manuel d'utilisateur télécharger pdf (Page 3)

DS1672

3 of 12

DC ELECTRICAL CHARACTERISTICS

= 0V, T

= -40°C to +85°C)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

BACKUP

Current (Osc on) I

BACKUPOSC

0.425 1

BACKUP

Current (Osc off) I

BACKUP

200 nA

Note 5: Using the recommended crystal on X1 and X2.

CRYSTAL SPECIFICATIONS

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Nominal Frequency F

32.768 kHz

Series Resistance ESR 45 kΩ

Load Capacitance C

6pF

*The crystal, traces, and crystal input pins should be isolated from RF generating signals. Refer to Application Note 58: Crystal Considerations

for Dallas Real-Time Clocks for additional specifications

1 2 3 4 5 6 7 8 ... 11 12

Pas de commentaire

Rainbow-electronics DS1672 Manuel d'utilisateur Page 3