參數(shù)資料
型號： BQ3287MT-I
廠商： TEXAS INSTRUMENTS INC
元件分類： XO, clock
英文描述： 1 TIMER(S), REAL TIME CLOCK, DMA24
封裝： ROHS COMPLIANT, PLASTIC, MODULE, DIP-24
文件頁數(shù)： 2/8頁
文件大小： 102K
代理商： BQ3287MT-I
2
Sept. 1996 D
Recommended DC Operating Conditions (TA =TOPR)
Symbol
Parameter
Minimum
Typical
Maximum
Unit
VCC
Supply voltage
4.5
5.0
5.5
V
VSS
Supply voltage
0
V
VIL
Input low voltage
-0.3
-
0.8
V
VIH
Input high voltage
2.2
-
VCC + 0.3
V
Note:
Typical values indicate operation at TA = 25°C.
Absolute Maximum Ratings
Symbol
Parameter
Value
Unit
Conditions
VCC
DC voltage applied on VCC relative to VSS
-0.3 to 7.0
V
VT
DC voltage applied on any pin excluding VCC
relative to VSS
-0.3 to 7.0
VVT ≤ VCC + 0.3
TOPR
Operating temperature
0 to +70
°C
Commercial
-20 to +70
°C
Extended “I”
TSTG
Storage temperature
-40 to +70
°C
Commercial
-40 to +70
°C
Extended “I”
TBIAS
Temperature under bias
-10 to +70
°C
Commercial
-20 to +70
°C
Extended “I”
TSOLDER
Soldering temperature
260
°C
For 10 seconds
Note:
Permanent device damage may occur if Absolute Maximum Ratings are exceeded. Functional opera-
tion should be limited to the Recommended DC Operating Conditions detailed in this data sheet. Expo-
sure to conditions beyond the operational limits for extended periods of time may affect device reliability.
DC Electrical Characteristics (TA =TOPR,VCC =5V ± 10%)
Symbol
Parameter
Minimum
Typical
Maximum
Unit
Conditions/Notes
ILI
Input leakage current
-
± 1
AVIN =VSS to VCC
ILO
Output leakage current
-
± 1
A
AD0–AD7, INT and SQW
in high impedance
VOH
Output high voltage
2.4
-
V
IOH = -1.0 mA
VOL
Output low voltage
-
0.4
V
IOL = 4.0 mA
ICC
Operating supply current
-
7
15
mA
Min. cycle, duty = 100%,
IOH = 0mA, IOL = 0mA
VSO
Supply switch-over voltage
-
3.0
-
V
VPFD
Power-fail-detect voltage
4.0
4.17
4.35
V
IRCL
Input current when RCL =VSS
-
185
A
Internal 30K pull-up
(bq3287A only)
IMOTH
Input current when MOT =
VCC
-
-185
A
Internal 30K pull-down
Note:
Typical values indicate operation at TA = 25°C, VCC =5V.
bq3287/bq3287A
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