DS1249Y Datasheet, PDF (3/8 Pages) Dallas Semiconductor – 2048k Nonvolatile SRAM

ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
DS1249Y/AB
-0.3V to +6.0V
0°C to 70°C, -40°C to +85°C for IND parts
-40°C to +70°C, -40°C to +85°C for IND parts
260°C for 10 seconds
* 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
V_CC
4.75 5.0
DS1249Y Power Supply Voltage
V_CC
4.5 5.0
Logic 1
V_IH
2.2
Logic 0
V_IL
0.0
(t_A: See Note 10)
MAX UNITS NOTES
5.25
V
5.5
V
V_CC
V
0.8
V
DC ELECTRICAL
CHARACTERISTICS
PARAMETER
Input Leakage Current
I/O Leakage Current CE ≥ V_IH ≤ V_CC
Output Current @ 2.4V
Output Current @ 0.4V
Standby Current CE =2.2V
Standby Current CE =V_CC-0.5V
Operating Current
Write Protection Voltage (DS1249AB)
Write Protection Voltage (DS1249Y)
(V_CC=5V ±=5% for DS1249AB)
(t_A: See Note 10) (V_CC=5V ±=10% for DS1249Y)
SYMBOL MIN TYP MAX UNITS NOTES
I_IL
-2.0
+2.0
µA
I_IO
-2.0
+2.0
µA
I_OH
-1.0
mA
I_OL
2.0
mA
I_CCS1
1.0
1.5
mA
I_CCS2
100 150
µA
I_CCO1
85
mA
V_TP
4.50 4.62 4.75
V
V_TP
4.25 4.37 4.5
V
CAPACITANCE
PARAMETER
Input Capacitance
Input/Output Capacitance
SYMBOL
C_IN
C_I/O
MIN
TYP
10
10
MAX
20
20
(t_A=25°C)
UNITS NOTES
pF
pF
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