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參數(shù)資料
| 型號： | DS1254Y |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PBGA168 |
| 封裝： | BGA-168 |
| 文件頁數(shù)： | 15/17頁 |
| 文件大?。?/td> | 161K |
| 代理商： | DS1254Y |
DS1254
7 of 17
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
-0.3V to +6.0V
Operating Temperature
0
°C to +70°C
Storage Temperature
-40
°C to +70°C
Soldering Temperature
See J-STD-020A specification
* This is a stress rating only and functional operation of the device at these or any other conditions above
those indicated in the operation sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect reliability.
RECOMMENDED DC OPERATING CONDITIONS
(0°C to 70°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Power Supply Voltage
(5V operation)
VCC
4.5
5.0
5.5
V
1
Power Supply Voltage
(3.3V operation)
VCC
3.0
3.3
3.7
V
1
Logic 1 Voltage All Inputs
VCC = 5V
±10%
VIH
2.2
VCC+0.3
V
1
VCC = 3.3V
±10%
VIH
2.0
VCC+0.3
V
1
Logic 0 Voltage All Inputs
VCC = 5V
±10%
VIL
-0.3
0.8
V
1
VCC = 3.3V
±10%
VIL
-0.3
0.6
V
1
DC ELECTRICAL CHARACTERISTICS
(0°C to 70°C; VCC = 5.0V
±10%)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Leakage Current
IIL
-4.0
+4.0
A
I/O Leakage Current
IIO
-4.0
+4.0
A
Output Current @ 2.4V
IOH
-1.0
mA
3
Output Current @ 0.4V
IOL
2.0
mA
3
Standby Current CE = 2.2V
ICCS1
5.0
10
mA
Standby Current CE = VCC-0.5V
ICCS2
3.0
5.0
mA
Operating Current, tCYC = 100 ns
ICCO1
85
mA
Write Protection Voltage
VPF
4.25
4.50
V
1
DC ELECTRICAL CHARACTERISTICS
(0°C to 70°C; VCC = 3.3V
±10%)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Leakage Current
IIL
-4.0
+4.0
A
I/O Leakage Current
IIO
-4.0
+4.0
A
Output Current @ 2.4V
IOH
-1.0
mA
3
Output Current @ 0.4V
IOL
2.0
mA
3
Standby Current CE = 2.2V
ICCS1
5.0
7
mA
Standby Current CE = VCC-0.5V
ICCS2
2.0
3.0
mA
Operating Current, tCYC = 100 ns
ICCO1
50
mA
Write Protection Voltage
VPF
2.8
2.97
V
1
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