16MB ESDRAM SO-DIMM
Clock Frequency
The following table specifies the operation of the ESDRAM at clock rates ranging from 66MHz to 150MHz. Module
operation above 125MHz must be constrained to loading on the data bus of
≤
30pF.
AC Parameters
Symbol
Parameter
Clock Frequency
Clock Cycle Time
Clock Access Time, CL=1
Clock Access Time, CL=2 and 3
Command Setup
Command Hold
Address Setup
Address Hold
-6
150
min
max
6.6
10.5
4.3
2.0
1.0
2.0
1.0
-7.5
133
min
max
7.5
12
4.5
2.2
1.0
2.2
1.0
-10
100
min
max
10.0
15
5.0
2.5
1.0
2.5
1.0
Units
MHz
ns
ns
ns
ns
ns
ns
ns
t
CK
t
AC1
t
AC2
t
CS
t
CH
t
AS
t
AH
Ordering Information
I/O
Width
x64
x64
x64
Part Number
SM2M64SDT-6
SM2M64SDT-7.5
SM2M64SDT-10
CAS Latencies
1, 2, 3
1, 2, 3
1, 2, 3
I/O Type
LVTTL
LVTTL
LVTTL
Power
Supply
3.3V
3.3V
3.3V
Maximum
Operating
Frequency
(MHz)
150
133
100
Enhanced Memory Systems assumes no responsibility for the user of any circuitry other than circuitry embodied in an
Enhanced Memory Systems product, nor does it convey or imply any license under patent or other right.
©
Copyright 1998, 1999
4
Rev. 1.1
RAMTRON [ RAMTRON INTERNATIONAL CORPORATION ]
