64Mbit – Enhanced SDRAM
8Mx8, 4Mx16 ESDRAM
Preliminary Datasheet
Pin Assignments (Top View)
8Mx8
4Mx16
1
2
3
4
5
6
7
8
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
VDD
DQ0
VDDQ
NC
DQ1
VSSQ
NC
DQ2
VDDQ
NC
DQ3
VSSQ
NC
VDD
DQ0
VDDQ
DQ1
DQ2
VSSQ
DQ3
DQ4
VDDQ
DQ5
DQ6
VSSQ
DQ7
VDD
LDQM
WE#
CAS#
RAS#
CS#
VSS
VSS
DQ15
VSSQ
DQ14
DQ13
VDDQ
DQ12
DQ11
VSSQ
DQ10
DQ9
VDDQ
DQ8
VSS
NC
UDQM
CLK
CKE
NC
A11
A9
DQ7
VSSQ
NC
DQ6
VDDQ
NC
DQ5
VSSQ
NC
DQ4
VDDQ
NC
VSS
NC
DQM
CLK
CKE
NC
A11
A9
A8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
54-pin TSOP-II
400 x 875 mils
0.8 mm pitch
VDD
NC
WE#
CAS#
RAS#
CS#
BA0
BA1
A10/AP
A0
BA0
BA1
A10/AP
A0
A8
A7
A6
A5
A4
VSS
A7
A6
A5
A4
A1
A2
A3
VDD
A1
A2
A3
VDD
VSS
This is a product in sampling or pre-production phase of development. Charac-
teristic data and other specifications are subject to change without notice.
Enhanced Memory Systems Inc., 1850 Ramtron Dr., Colo Spgs, CO 80921
PHONE: (800) 545-DRAM; FAX: (719) 488-9095; http://www.edram.com
Page 2 of 33
Revision 1.1
RAMTRON [ RAMTRON INTERNATIONAL CORPORATION ]
