BQ3287E_14 Datasheet, PDF (2/8 Pages) Texas Instruments – Real-Time Clock (RTC) Module

Not Recommended For New Designs
bq3287E/bq3287EA
Absolute Maximum Ratings
Symbol
Parameter
Value
Unit
Conditions
VCC
DC voltage applied on VCC relative to VSS
V_T
DC voltage applied on any pin excluding VCC
relative to VSS
TOPR
Operating temperature
TSTG
Storage temperature
TBIAS
Temperature under bias
TSOLDER Soldering temperature
-0.3 to 7.0
-0.3 to 7.0
0 to +70
-40 to +70
-10 to +70
260
V
V
V_T ≤ V_CC + 0.3
°C
Commercial
°C
Commercial
°C
Commercial
°C
For 10 seconds
Note:
Permanent device damage may occur if Absolute Maximum Ratings are exceeded. Functional operation
should be limited to the Recommended DC Operating Conditions detailed in this data sheet. Exposure to
conditions beyond the operational limits for extended periods of time may affect device reliability.
Recommended DC Operating Conditions (TA = TOPR)
Symbol
VCC
VSS
VIL
VIH
Parameter
Supply voltage
Supply voltage
Input low voltage
Input high voltage
Minimum
4.5
0
-0.3
2.2
Typical
Maximum
Unit
5.0
5.5
V
0
0
V
-
0.8
V
-
VCC + 0.3
V
Note:
Typical values indicate operation at TA = 25°C.
DC Electrical Characteristics (TA = TOPR, VCC = 5V ± 10%)
Symbol
ILI
I_LO
VOH
VOL
ICC
VSO
VPFD
I_RCL
IMOTH
IXTRAM
Parameter
Input leakage current
Output leakage current
Output high voltage
Output low voltage
Minimum Typical Maximum
-
-
±1
-
-
±1
2.4
-
-
-
-
0.4
Operating supply current
-
Supply switch-over voltage
-
Power-fail-detect voltage
4.0
Input current when RCL = V_SS
-
Input current when MOT =
-
VCC
Input current when
EXTRAM = VCC
-
7
3.0
4.17
-
-
-
15
-
4.35
185
-185
-185
Unit
µA
µA
V
V
mA
V
V
µA
µA
Conditions/Notes
VIN = VSS to VCC
AD0–AD7, INT and
SQW in high impedance
IOH = -1.0 mA
IOL = 4.0 mA
Min. cycle, duty = 100%,
IOH = 0mA, IOL = 0mA
Internal 30K pull-up
(bq3287EA only)
Internal 30K pull-down
µA Internal 30K pull-down
Note:
Typical values indicate operation at TA = 25°C, VCC = 5V.
Sept. 1996 C
2