DRAM
Austin Semiconductor, Inc.
CAPACITANCE
PARAMETER
Input Capacitance: A0-A10
Input Capacitance: RAS\, CAS\, WE\, OE\
Input/Output Capacitance: DQ
SYM
C
I1
C
I2
C
IO
MIN
MAX
7
7
8
UNITS
pF
pF
pF
NOTES
2
2
2
MT4C4001J
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC OPERATING CONDITIONS
(NOTES: 6, 7, 8, 9, 10, 11, 12, 13) (-55°C < T
C
< 125°C; V
CC
= 5V ±10%)
-7
PARAMETER
Random READ or WRITE cycle time
READ-WRITE cycle time
FAST-PAGE-MODE READ or WRITE cycle time
FAST-PAGE-MODE READ-WRITE cycle time
Access time from RAS\
Access time from CAS\
Access time from column address
Access time from CAS\ precharge
RAS\ pulse width
RAS\ pulse width (FAST PAGE MODE)
RAS\ hold time
RAS\ precharge time
CAS\ pulse width
CAS\ hold time
CAS\ precharge time
CAS\ precharge time (FAST PAGE MODE)
RAS\ to CAS\ delay time
CAS\ to RAS\ precharge time
Row address setup time
Row address hold time
RAS\ to column address delay time
Column address setup time
Column address hold time
Column address hold time (referenced to RAS\)
Column address to RAS\ lead time
Read command setup time
Read command hold time (referenced to CAS\)
Read command hold time (referenced to RAS\)
CAS\ to output in Low-Z
Output buffer turn-off delay
WE\ command setup time
SYM
t
RC
t
RWC
t
PC
t
PRWC
t
RAC
t
CAC
t
AA
t
CPA
t
RAS
t
RASP
t
RSH
t
RP
t
CAS
t
CSH
t
CPN
t
CP
t
RCD
t
CRP
t
ASR
t
RAH
t
RAD
t
ASC
t
CAH
t
AR
t
RAL
t
RCS
t
RCH
t
RRH
t
CLZ
t
OFF
t
WCS
70
70
20
50
20
70
10
10
20
5
0
10
15
0
15
50
35
0
0
0
0
0
0
20
35
50
10,000
MIN
130
180
40
90
70
20
35
35
10,000
100,000
80
80
20
60
20
80
10
10
20
5
0
10
15
0
15
60
40
0
0
0
0
0
0
20
40
60
10,000
MAX
MIN
150
200
45
90
80
20
40
40
10,000
100,000
100
100
25
70
25
100
12
12
25
5
0
15
20
0
20
70
50
0
0
0
0
0
0
20
50
75
10,000
-8
MAX
MIN
190
240
55
110
90
25
45
45
10,000
100,000
120
120
30
90
30
120
15
15
25
10
0
15
20
0
25
85
60
0
0
0
0
0
0
20
60
90
-10
MAX
MIN
220
255
70
140
120
30
60
60
100,000
100,000
-12
MAX
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
ns
ns
ns
20
21, 27
19
19
18
17
16
14
15
NOTES
MT4C4001J
Rev. 1.5 10/02
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
5
AUSTIN [ AUSTIN SEMICONDUCTOR ]
