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DS1248 Datasheet(PDF) 9 Page - Dallas Semiconductor

Part # DS1248
Description  1024k NV SRAM with Phantom Clock
PDF  21 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS1248 Datasheet(HTML) 9 Page - Dallas Semiconductor

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DS1248/DS1248P
9 of 21
DC ELECTRICAL CHARACTERISTICS
Over the operating range (3.3V)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Leakage Current
IIL
-1.0
+1.0
mA
12
I/O Leakage Current
CE
³ VIH ≤ VCC
IIO
-1.0
+1.0
mA
Output Current @ 2.4V
IOH
-1.0
mA
Output Current @ 0.4V
IOL
2.0
mA
Standby Current CE = 2.2V
ICCS1
57
mA
Standby Current
CE = VCC - 0.5V
ICCS2
2.0
3.0
mA
Operating Current tCYC = 70ns
ICC01
50
mA
Write Protection Voltage
VPF
2.80
2.86
2.97
V
11
Battery Switchover Voltage
VSO
VBAT or VPF
V11
CAPACITANCE
(TA = +25
°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS NOTES
Input Capacitance
CIN
510
pF
Input/Output Capacitance
CI/O
510
pF
MEMORY AC ELECTRICAL CHARACTERISTICS Over the operating range (5V)
DS1248Y-70
PARAMETER
SYMBOL
MIN
MAX
UNITS
NOTES
Read Cycle Time
tRC
70
ns
Access Time
tACC
70
ns
OE
to Output Valid
tOE
35
ns
CE
to Output Valid
tCO
70
ns
OE
or CE to Output Active
tCOE
5ns
5
Output High-Z from Deselection
tOD
25
ns
5
Output Hold from Address Change
tOH
5ns
Write Cycle Time
tWC
70
ns
Write Pulse Width
tWP
50
ns
3
Address Setup Time
tAW
0ns
Write Recovery Time
tWR
0ns
Output High-Z from WE
tODW
25
ns
5
Output Active from WE
tOEW
5ns
5
Data Setup Time
tDS
30
ns
4
Data Hold Time from WE
tDH
5ns
4



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