SM4M64ALDT-6 Enhanced Memory Systems, Inc., SM4M64ALDT-6 Datasheet - Page 10

• Manufacturer Part Number: SM4M64ALDT-6
• Description: 168-pin Low Profile ESDRAM DIMM
• Manufacturer: Enhanced Memory Systems, Inc.

168-pin Low profile ESDRAM DIMMs
32MB, 64MB, 128MB
AC Operating Conditions (T
Clock and Clock Enable Parameters
Notes:
1.
Common Parameters
Enhanced Memory Systems Inc., 1850 Ramtron Dr., Colo Spgs, CO 80921
PHONE: (800) 545-DRAM; FAX: [phone];
Page 10 of 15
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CK2
CK1
CKH2
CKH1
CKES
CKEH
CKSP
T
CS
CH
RCD
RC
RAS
RP
RRD
CCD
MRD
Symbol
Symbol
Assumes clock rise and fall times are equal to 1ns. If rise or fall time exceeds 1ns, other AC timing parameters must be compensated by an
additional [(t
, t
, t
CKL2
CKL1
Clock Cycle Time, CL = 2, 3
Clock Cycle Time, CL = 1
Clock High & Low Times, CL=2, 3
Clock High & Low Times, CL=1
Clock Enable Set-Up Time
Clock Enable Hold Time
CKE Set-Up Time (Power down mode)
Transition Time (Rise and Fall)
Command and Address Set-Up Time
Command and Address Hold Time
RAS to CAS Delay Time
Bank Cycle Time
Bank Active Time
Precharge Time
Bank to Bank Delay Time (Alt. Bank)
CAS to CAS Delay Time (Same Bank)
Mode Register Set to Active Delay
rise
+t
fall
)/2-1] ns.
Parameter
Parameter
http://www.edram.com
A
= 0 C to 70 C)
Min
Min
6.0
2.4
1.5
0.8
1.5
1.5
0.8
12
12
30
18
12
12
5
6
2
-
-6
-6
120K
Max
Max
2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
The information contained herein is subject to change without notice.
37.5
22.5
Min
Min
7.5
1.5
2.8
1.5
0.8
1.5
0.8
7.5
15
15
15
15
2001 Enhanced Memory Systems. All rights reserved.
6
2
-
-7.5
-7.5
120K
Max
Max
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Preliminary Data Sheet
Units
Units
CLK
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Revision 1.0
Notes
Notes
1
1