Datasheet

DS1672
4 of 15
DC ELECTRICAL CHARACTERISTICS
(V
CC
= 0V, T
A
= -40°C to +85°C.) (Note 5)
PARAMETER SYMBOL MIN TYP MAX UNITS
V
BACKUP
Current (Oscillator On)
I
BACKUPOSC
0.425
1
µA
V
BACKUP
Current (Oscillator Off)
I
BACKUP
200
nA
Note 5: Using the recommended crystal on X1 and X2.
CRYSTAL SPECIFICATIONS
*
PARAMETER SYMBOL MIN TYP MAX UNITS
Nominal Frequency
f
O
32.768
kHz
Series Resistance
ESR
45
kΩ
Load Capacitance
C
L
6
pF
*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