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參數(shù)資料
| 型號(hào)： | KM68V4000A |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 512K x8 bit Low Power and Low Voltage CMOS Static RAM(512K x8位低功耗低電壓CMOS 靜態(tài) RAM) |
| 中文描述： | 為512k x8位低功耗和低電壓的CMOS靜態(tài)RAM（為512k x8位低功耗低電壓的CMOS靜態(tài)RAM）的 |
| 文件頁(yè)數(shù)： | 5/9頁(yè) |
| 文件大小： | 140K |
| 代理商： | KM68V4000A |
KM68V4000A, KM68U4000A Family
CMOS SRAM
Revision 2.0
February 1998
5
AC CHARACTERISTICS
(KM68V4000A Family : Vcc=3.0~3.3V, KM68U4000A Family : Vcc=2.7~3.3V
Commercial Product : T
A
=0 to 70
°
C, Industrial Product : T
A
=-40 to 85
°
C)
Parameter List
Symbol
Speed Bins
Units
85ns
100ns
Min
Max
Min
Max
Read
Read cycle time
t
RC
85
-
100
-
ns
Address access time
t
AA
-
85
-
100
ns
Chip select to output
t
CO
-
85
-
100
ns
Output enable to valid output
t
OE
-
40
-
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
85
-
100
-
ns
Chip select to end of write
t
CW
70
-
80
-
ns
Address set-up time
t
AS
0
-
0
-
ns
Address valid to end of write
t
AW
70
-
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
20
0
30
ns
Data to write time overlap
t
DW
35
-
40
-
ns
Data hold from write time
t
DH
0
-
0
-
ns
End write to output low-Z
t
OW
5
-
5
-
ns
C
L
1)
1. Including scope and jig capacitance
AC OPERATING CONDITIONS
TEST CONDITIONS
( Test Load and Input/Output Reference)
Input pulse level : 0.4 to 2.2V
Input rising and faling time : 5ns
Input and output reference voltage :1.5V
Outpuy load(see right) : C
L
=100pF+1TTL
C
L
2)
=30pF+1TTL
1. KM68V4000A-8 Family, KM68U4000A-8 Family
DATA RETENTION CHARACTERISTICS
Item
Symbol
Test Condition
Min
Typ
Max
Unit
Vcc for data retention
V
DR
CS
≥
Vcc-0.2V
2.0
-
3.6
V
Data retention current
I
DR
Vcc=3.0V, CS
≥
Vcc-0.2V
KM68V4000AL
KM68V4000AL-L
KM68V4000ALI
KM68V4000ALI-L
KM68U4000AL
KM68V4000AL-L
KM68U4000ALI
KM68V4000ALI-L
-
-
-
-
-
-
-
-
0
1
0.5
-
-
1
0.5
-
-
-
30
15
30
20
30
10
30
15
-
μ
A
Data retention set-up time
t
SDR
See data retention waveform
ms
Recovery time
t
RDR
5
-
-
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