AUSTIN SEMICONDUCTOR, INC.
AS4LC4M4 883C
4 MEG x 4 DRAM
CAPACITANCE
PARAMETER
Input Capacitance: Address pins
Input Capacitance:
?
R
?
A
/
S,
?
C
?
A
/
S,
?
W
/
E,
?
O
/
E
Input/Output Capacitance: DQ
SYMBOL
C
I
1
C
I
2
C
IO
MAX
7
7
8
UNITS
pF
pF
pF
NOTES
2
2
2
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC OPERATING CONDITIONS
(Notes: 6, 7, 8, 9, 10, 11, 12, 13) (V
CC
= +3.3V
±0.3V)
AC CHARACTERISTICS
PARAMETER
Access time from column-address
Column-address set-up to
?
C
?
A
/
S precharge during write
Column-address hold time (referenced to
?
R
?
A
/
S)
Column-address setup time
Row-address setup time
Column-address to
?
W
/
E delay time
Access time from
?
C
?
A
/
S
Column-address hold time
?
C
?
A
/
S pulse width
?
C
?
A
/
S hold time (CBR REFRESH)
?
C
?
A
/
S to output in Low-Z
Data output hold after next
?
C
?
A
/
S LOW
?
C
?
A
/
S precharge time
Access time from
?
C
?
A
/
S precharge
?
C
?
A
/
S to
?
R
?
A
/
S precharge time
?
C
?
A
/
S hold time
?
C
?
A
/
S setup time (CBR REFRESH)
?
C
?
A
/
S to
?
W
/
E delay time
Write command to
?
C
?
A
/
S lead time
Data-in hold time
Data-in hold time (referenced to
?
R
?
A
/
S)
Data-in setup time
Output disable
Output Enable
OE hold time from WE during READ-MODIFY-WRITE cycle
? /
? /
?
O
/
E HIGH hold from
?
C
?
A
/
S HIGH
?
O
/
E HIGH pulse width
?
O
/
E LOW to
?
C
?
A
/
S HIGH setup time
-6
MIN
MAX
30
15
45
0
0
55
15
10
12 10,000
10
0
5
10
35
5
50
5
35
15
10
40
0
0
15
15
10
10
10
5
-7
MIN
15
55
0
0
65
20
15
15
15
0
5
10
5
55
5
40
15
12
56
0
0
12
10
10
5
10,000
15
20
15
0
5
10
5
60
10
45
20
15
55
0
15
20
15
10
10
5
20
20
MAX
35
MIN
20
60
0
0
65
20
10,000
-8
MAX
40
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
SYM
t
AA
t
ACH
t
AR
t
ASC
t
ASR
t
AWD
t
CAC
t
CAH
t
CAS
t
CHR
t
CLZ
t
COH
t
CP
t
CPA
t
CRP
t
CSH
t
CSR
t
CWD
t
CWL
t
DH
t
DHR
t
DS
t
OD
t
OE
t
OEH
t
OEHC
t
OEP
t
OES
20
14
5
15
40
40
5
20
21
21
22
AS4LC4M4
Rev. 11/97
DS000022
2-78
Austin Semiconductor, Inc., reserves the right to change products or specifications without notice.
AUSTIN [ AUSTIN SEMICONDUCTOR ]
