IBM0116400 IBM0116400M
IBM0116400B IBM0116400P
4M x 4 12/10 DRAM
AC Characteristics
(T
A
= 0 to +70˚C, V
CC
= 3.3V
±
0.3V or V
CC
= 5.0V
±
0.5V)
1. An initial pause of 200µs is required after power-up followed by 8 RAS only refresh cycles before proper device operation is
achieved. In case of using the internal refresh counter, a minimum of 8 CAS before RAS refresh cycles instead of 8 RAS only
refresh cycles is required.
2. AC measurements assume t
T
=5ns.
3. V
IH
(min.) and V
IL
(max.) are reference levels for measuring timing of input signals. Also, transition times are measured between V
IH
and V
IL
.
4. Valid column addresses are A0 through A9.
Read, Write, Read-Modify-Write and Refresh Cycles
(Common Parameters)
-50
Symbol
t
RC
t
RP
t
CP
t
RAS
t
CAS
t
ASR
t
RAH
t
ASC
t
CAH
t
RCD
t
RAD
t
RSH
t
CSH
t
CRP
t
OED
t
DZO
t
DZC
t
T
Parameter
Min.
Random Read or Write Cycle Time
RAS Precharge Time
CAS Precharge Time
RAS Pulse Width
CAS Pulse Width
Row Address Setup Time
Row Address Hold Time
Column Address Setup Time
Column Address Hold Time
RAS to CAS Delay Time
RAS to Column Address Delay Time
RAS Hold Time
CAS Hold Time
CAS to RAS Precharge Time
OE to D
IN
Delay Time
OE Delay Time from D
IN
CAS Delay Time from D
IN
Transition Time (Rise and Fall)
95
30
10
50
13
0
10
0
10
20
15
13
50
5
13
0
0
3
Max.
—
—
—
10K
10K
—
—
—
—
37
25
—
—
—
—
—
—
50
Min.
110
40
10
60
15
0
10
0
10
20
15
15
60
5
15
0
0
3
Max.
—
—
—
10K
10K
—
—
—
—
45
30
—
—
—
—
—
—
50
Min.
130
50
10
70
20
0
10
0
10
20
15
20
70
5
15
0
0
3
Max.
—
—
—
10K
10K
—
—
—
—
50
35
—
—
—
—
—
—
50
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
3
4
4
5
1
2
-60
-70
Units
Notes
1. Operation within the t
RCD
(max.) limit ensures that t
RAC
(max.) can be met. t
RCD
(max.) is specified as a reference point only. If t
RCD
is greater than the specified t
RCD
(max.) limit, then access time is controlled by t
CAC
.
2. Operation within the t
RAD
(max.) limit ensures that t
RAC
(max.) can be met. t
RAD
(max.) is specified as a reference point only. If t
RAD
is
greater than the specified t
RAD
(max.) limit, then access time is controlled by t
AA
.
3. Either t
CDD
or t
OED
must be satisfied.
4. Either t
DZC
or t
DZO
must be satisfied.
5. AC measurements assume t
T
=5ns.
43G9396
SA14-4203-04
Revised 11/96
©IBM Corporation, 1996. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 7 of 27
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