BQ3285EC Datasheet, PDF (13/26 Pages) Texas Instruments – Real-Time Clock (RTC)

bq3285EC/LC
DC Electrical Characteristics—bq3285EC (T_A = T_OPR, V_CC = 5V )
Symbol
Parameter
Minimum Typical Maximum Unit
Conditions/Notes
ILI
Input leakage current
-
-
±1
µA VIN = VSS to VCC
ILO
Output leakage current
AD0–AD7 and INT in
-
-
±1
µA high impedance,
VOUT = VSS to VCC
VOH
Output high voltage
2.4
-
-
V IOH = -2.0 mA
VOL
Output low voltage
I_CC
Operating supply current
-
-
0.4
V IOL = 4.0 mA
-
7
15
mA
Min. cycle, duty = 100%,
IOH = 0mA, IOL = 0mA
ICCSB
Standby supply current
-
300
-
µA
VIN = VSS or VCC,
CS ≥ VCC - 0.2
VSO
ICCB
VPFD
Supply switch-over voltage
Battery operation current
Power-fail-detect voltage
-
V_BC
-
V
-
0.3
0.5
µA V_BC = 3V, TA = 25°C
4.0
4.17
4.35
V
IRCL
Input current when RCL = VSS.
-
IMOTH
Input current when MOT = VCC
-
Input current when MOT = VSS
-
Input current when EXTRAM =
VCC
-
IXTRAM
Input current when EXTRAM =
VSS
-
-
185
µA Internal 30K pull-up
-
-185
µA Internal 30K pull-down
-
0
µA Internal 30K pull-down
-
-185
µA Internal 30K pull-down
-
0
µA Internal 30K pull-down
Note:
Typical values indicate operation at TA = 25°C, VCC = 5V or VBC = 3V.
July 1996
13