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KM68512B Folha de dados(PDF) 5 Page - Samsung semiconductor

Nome de Peças KM68512B
Descrição Electrónicos  64Kx8 bit Low Power CMOS Static RAM
PDF  9 Pages
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Fabricante Electrônico  SAMSUNG [Samsung semiconductor]
Página de início  http://www.samsung.com/Products/Semiconductor
Logo SAMSUNG - Samsung semiconductor

KM68512B Folha de dados(HTML) 5 Page - Samsung semiconductor

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Revision 0.0
KM68512B Family
CMOS SRAM
January 1998
5
Advance
AC CHARACTERISTICS (Vcc=4.5~5.5V, KM68512B Family : TA=0 to 70°C, KM68512BI Family : TA=-40 to 85°C)
Parameter List
Symbol
Speed Bins
Units
55ns
70ns
Min
Max
Min
Max
Read
Read cycle time
tRC
55
-
70
-
ns
Address access time
tAA
-
55
-
70
ns
Chip select to output
tCO
-
55
-
70
ns
Output enable to valid output
tOE
-
25
-
35
ns
Chip select to low-Z output
tLZ
10
-
10
-
ns
Output enable to low-Z output
tOLZ
5
-
5
-
ns
Chip disable to high-Z output
tHZ
0
20
0
25
ns
Output disable to high-Z output
tOHZ
0
20
0
25
ns
Output hold from address change
tOH
10
-
10
-
ns
Write
Write cycle time
tWC
55
-
70
-
ns
Chip select to end of write
tCW
45
-
60
-
ns
Address set-up time
tAS
0
-
0
-
ns
Address valid to end of write
tAW
45
-
60
-
ns
Write pulse width
tWP
40
-
55
-
ns
Write recovery time
tWR
0
-
0
-
ns
Write to output high-Z
tWHZ
0
20
0
25
ns
Data to write time overlap
tDW
20
-
30
-
ns
Data hold from write time
tDH
0
-
0
-
ns
End write to output low-Z
tOW
5
-
5
-
ns
CL1)
1. Including scope and jig capacitance
AC OPERATING CONDITIONS
TEST CONDITIONS ( Test Load and Input/Output Reference)
Input pulse level : 0.8 to 2.4V
Input rising and faling time : 5ns
Input and output reference voltage :1.5V
Output load(see right) : C L=100pF+1TTL
DATA RETENTION CHARACTERISTICS
1. CS1
≥Vcc-0.2V, CS2≥Vcc-0.2V( CS1 controlled) or CS2≤0.2V(CS2 controlled).
Item
Symbol
Test Condition
Min
Typ
Max
Unit
Vcc for data retention
VDR
CS11)
≥Vcc-0.2V
2.0
-
5.5
V
Data retention current
IDR
Vcc=3.0V, CS1
≥Vcc-0.2V
KM68512BL-L
-
0.5
10
µA
KM68512BLI-L
-
-
15
Data retention set-up time
tSDR
See data retention waveform
0
-
-
ms
Recovery time
tRDR
5
-
-



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