256Mb: x4, x8, x16 SDRAM
Pin and Ball Assignments and Descriptions
Pin and Ball Assignments and Descriptions
Figure 4: 54-Pin TSOP (Top View)
x4
x8
x16
x16
x8
x4
-
NC
-
DQ0
-
NC
DQ1
-
NC
DQ2
-
NC
DQ3
-
VDD
DQ0
VDDQ
DQ1
DQ2
VSSQ
DQ3
DQ4
VDDQ
DQ5
DQ6
VSSQ
DQ7
VDD
VSS
DQ15 DQ7
VSSQ
DQ14 NC
DQ13 DQ6
VDDQ
DQ12 NC
DQ11 DQ5
VSSQ
-
-
NC
-
NC
DQ3
-
NC
NC
-
NC
DQ2
-
NC
-
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
-
NC
DQ0
-
NC
NC
-
NC
DQ1
-
NC
-
NC
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
9
DQ10 NC
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
DQ9
VDDQ
DQ8
VSS
DQ4
-
NC
-
-
NC
-
NC DQML
NC
-
-
-
-
-
-
-
-
-
-
-
-
-
WE#
CAS#
RAS#
CS#
BA0
BA1
A10
A0
A1
A2
A3
VDD
DQMH DQM DQM
CLK
CKE
A12
A11
A9
A8
A7
A6
A5
A4
VSS
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1. The # symbol indicates that the signal is active LOW. A dash (-) indicates that the x8 and
x4 pin function is the same as the x16 pin function.
Notes:
2. Package may or may not be assembled with a location notch.
PDF: 09005aef8091e6d1
256Mb_sdr.pdf - Rev. R 10/12 EN
Micron Technology, Inc. reserves the right to change products or specifications without notice.
11
© 1999 Micron Technology, Inc. All rights reserved.
MICRON [ MICRON TECHNOLOGY ]
