DS1249AB(2010) 查看數據表（PDF） - Maxim Integrated
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DS1249AB Datasheet PDF : 10 Pages
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ABSOLUTE MAXIMUM RATINGS
Voltage on Any Pin Relative to Ground
Operating Temperature Range
Commercial:
Industrial:
Storage Temperature Range
Lead Temperature (soldering, 10s)
Note: EDIP is wave or hand soldered only.
DS1249Y/AB
-0.3V to +6.0V
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
+260°C
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
PARAMETER
SYMBOL MIN TYP
DS1249AB Power Supply Voltage
VCC
4.75 5.0
DS1249Y Power Supply Voltage
VCC
4.5 5.0
Logic 1
VIH
2.2
Logic 0
VIL
0.0
(TA: See Note 10)
MAX UNITS NOTES
5.25
V
5.5
V
VCC
V
0.8
V
DC ELECTRICAL CHARACTERISTICS
(VCC = 5V ±5% for DS1249AB)
(TA: See Note 10) (VCC = 5V ±10% for DS1249Y)
PARAMETER
SYMBOL MIN TYP MAX UNITS NOTES
Input Leakage Current
IIL
-2.0
+2.0
µA
I/O Leakage Current CE ≥ VIH ≤ VCC
IIO
-2.0
+2.0
µA
Output Current @ 2.4V
IOH
-1.0
mA
Output Current @ 0.4V
IOL
2.0
mA
Standby Current CE =2.2V
ICCS1
1.0
1.5
mA
Standby Current CE =VCC-0.5V
ICCS2
100 150
µA
Operating Current
ICCO1
85
mA
Write Protection Voltage (DS1249AB)
VTP
4.50 4.62 4.75
V
Write Protection Voltage (DS1249Y)
VTP
4.25 4.37 4.5
V
CAPACITANCE
PARAMETER
Input Capacitance
Input/Output Capacitance
SYMBOL
CIN
CI/O
MIN
TYP
10
10
MAX
20
20
(TA = +25°C)
UNITS NOTES
pF
pF
3 of 9
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