IS61SP25616
IS61SP25618
PIN CONFIGURATION
ISSI
100-Pin TQFP
7
A6
A7
CE
CE2
NC
NC
BW2
BW1
CE2
VCC
GND
CLK
GW
BWE
OE
ADSC
ADSP
ADV
A8
A9
®
119-pin PBGA (Top View)
1
A
VCCQ
B
NC
C
NC
D
DQ9
E
NC
F
VCCQ
G
NC
H
DQ12
J
VCCQ
K
NC
L
DQ14
M
VCCQ
N
DQ16
P
NC
R
NC
T
NC
U
VCCQ
NC
NC
NC
NC
NC
VCCQ
A11
A10
NC
A14
A17
ZZ
A5
MODE
VCC
GND
A13
NC
DQP2
GND
A0
GND
NC
DQ1
NC
GND
A1
GND
DQ2
NC
DQ15
GND
NC
GND
NC
BWE
DQ13
GND
CLK
GND
BW1
GND
NC
DQ3
NC
DQ4
NC
VCCQ
VCC
NC
VCC
NC
VCC
VCCQ
NC
GND
DQ11
NC
GND
BW2
DQ10
GND
NC
GND
NC
CE
OE
ADV
GW
GND
GND
GND
GND
GND
DQP1
NC
DQ7
NC
DQ5
NC
DQ8
VCCQ
DQ6
NC
A7
A2
VCC
A12
A15
NC
CE2
A3
A6
A4
2
3
4
5
6
ADSP
ADSC
A8
A9
A16
CE2
VCCQ
NC
NC
NC
NC
VCCQ
GND
NC
NC
DQ9
DQ10
GND
VCCQ
DQ11
DQ12
NC
VCC
NC
GND
DQ13
DQ14
VCCQ
GND
DQ15
DQ16
DQP2
NC
GND
VCCQ
NC
NC
NC
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
80
1
79
2
78
3
77
4
76
5
75
6
74
7
73
8
72
9
71
10
70
11
69
12
68
13
67
14
66
15
65
16
64
17
63
18
62
19
61
20
60
21
59
22
58
23
57
24
56
25
55
26
54
27
53
28
52
29
51
30
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
A17
NC
NC
VCCQ
GND
NC
DQP1
DQ8
DQ7
GND
VCCQ
DQ6
DQ5
GND
NC
VCC
ZZ
DQ4
DQ3
VCCQ
GND
DQ2
DQ1
NC
NC
GND
VCCQ
NC
NC
NC
256K x 18
PIN DESCRIPTIONS
A0, A1
Synchronous Address Inputs. These
pins must tied to the two LSBs of the
address bus.
Synchronous Address Inputs
Synchronous Clock
Synchronous Processor Address
Status
Synchronous Controller Address
Status
Synchronous Burst Address Advance
Synchronous Byte Write Enable
Synchronous Byte Write Enable
GW
OE
DQ1-DQ16
MODE
V
CC
GND
V
CCQ
ZZ
DQP1-DQP2
Synchronous Global Write Enable
Output Enable
Synchronous Data Input/Output
Burst Sequence Mode Selection
+3.3V Power Supply
Ground
Isolated Output Buffer Supply: +3.3V
Snooze Enable
Parity Data I/O DQP1 is parity for DQ1-8;
DQP2 is parity for DQ9-16
CE,
CE2,
CE2
Synchronous Chip Enable
A2-A17
CLK
ADSP
ADSC
ADV
BW1-BW2
BWE
4
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. A
04/17/01
MODE
A5
A4
A3
A2
A1
A0
NC
NC
GND
VCC
NC
NC
A10
A11
A12
A13
A14
A15
A16
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
