64Mbit – High Speed SDRAM
8Mx8, 4Mx16 HSDRAM
Pin Assignments (Top View)
Data Sheet
8Mx8
4Mx16
VDD
DQ0
VDD
NC
DQ1
VSS
NC
DQ2
VDD
NC
DQ3
VSS
NC
VDD
NC
/WE
/CAS
/RAS
/CS
BA0
BA1
A0
A1
A2
A3
VDD
VDD
DQ0
VDD
DQ1
DQ2
VSS
DQ3
DQ4
VDD
DQ5
DQ6
VSS
DQ7
VDD
LDQM
/WE
/CAS
/RAS
/CS
BA0
BA1
A0
A1
A2
A3
VDD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
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
VSS
DQ15
VSS
DQ14
DQ13
VDD
DQ12
DQ11
VSS
DQ10
DQ9
VDD
DQ8
VSS
NC
CLK
CKE
NC
A11
A9
A8
A7
A6
A5
A4
VSS
VSS
DQ7
VSS
NC
DQ6
VDD
NC
DQ5
VSS
NC
DQ4
VDD
NC
VSS
NC
CLK
CKE
NC
A11
A9
A8
A7
A6
A5
A4
VSS
54 PIN TSOP-II
400 x 875 mils
0.8 mm pitch
UDQM DQM
A10/AP A10/AP
Enhanced Memory Systems Inc., 1850 Ramtron Dr., Colo Spgs, CO 80921
PHONE: (800) 545-DRAM; FAX: (719) 488-9095;
http://www.edram.com
1999 Enhanced Memory Systems. All rights reserved.
The information contained herein is subject to change without notice.
Page 2 of 10
Revision 1.1
RAMTRON [ RAMTRON INTERNATIONAL CORPORATION ]
