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參數(shù)資料
| 型號(hào)： | KM68FU2000A |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 256K x8 Bit Super Low Power and Low Voltage Full CMOS Static RAM(256K x 8位超低功耗和低電壓CMOS 靜態(tài) RAM) |
| 中文描述： | 256K x8位超低功耗和低電壓的CMOS全靜態(tài)RAM（256K × 8位超低功耗和低電壓的CMOS靜態(tài)RAM）的 |
| 文件頁(yè)數(shù)： | 5/9頁(yè) |
| 文件大?。?/td> | 151K |
| 代理商： | KM68FU2000A |
Revision 0.0
July 1998
CMOS SRAM
KM68FU2000A Family
Advance
- 5 -
AC CHARACTERISTICS
(T
A
=-40 to 85
°
C, Vcc=2.7~3.3V)
Parameter List
Symbol
Speed Bins
Units
70ns
100ns
Min
Max
Min
Max
Read
Read cycle time
t
RC
70
-
100
-
ns
Address access time
t
AA
-
70
-
100
ns
Chip select to output
t
CO
-
70
-
100
ns
Output enable to valid output
t
OE
-
35
-
50
ns
Chip select to low-Z output
t
LZ
10
-
10
-
ns
Output enable to low-Z output
t
OLZ
5
-
5
-
ns
Chip disable to high-Z output
t
HZ
0
25
0
30
ns
Output disable to high-Z output
t
OHZ
0
25
0
30
ns
Output hold from address change
t
OH
10
-
15
-
ns
Write
Write cycle time
t
WC
70
-
100
-
ns
Chip select to end of write
t
CW
60
-
80
-
ns
Address set-up time
t
AS
0
-
0
-
ns
Address valid to end of write
t
AW
60
-
80
-
ns
Write pulse width
t
WP
55
-
70
-
ns
Write recovery time
t
WR
0
-
0
-
ns
Write to output high-Z
t
WHZ
0
25
0
30
ns
Data to write time overlap
t
DW
30
-
40
-
ns
Data hold from write time
t
DH
0
-
0
-
ns
End write to output low-Z
t
OW
5
-
5
-
ns
DATA RETENTION CHARACTERISTICS
1.
CS
1
≥
Vcc-0.2V, CS
2
≥
Vcc-0.2V(CS
1
controlled) or CS
2
≤
0.2V(CS
2
controlled)
2. Super low power product=1
μ
A with special handling.
Item
Symbol
Test Condition
Min
Typ
Max
Unit
Vcc for data retention
V
DR
CS
1
≥
Vcc-0.2V
1)
Vcc= 1.2V, CS
1
≥
Vcc-0.2V
1)
1.0
-
3.3
V
Data retention current
I
DR
-
0.5
3
2)
μ
A
Data retention set-up time
t
SDR
See data retention waveform
0
-
-
ns
Recovery time
t
RDR
t
RC
-
-
AC OPERATING CONDITIONS
TEST CONDITIONS
(Test Load and Test Input/Output Reference)
Input pulse level: 0.4 to 2.2V
Input rising and falling time: 5ns
Input and output reference voltage: 1.5V
Output load (See right):C
L
= 100pF+1TTL
C
L
1)
1. Including scope and jig capacitance
2. R
1
=3070W
,
R
2
=3150W
3. V
TM
=2.8V
R
2
2)
R
1
2)
V
TM
3)
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