3
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
IDT72805LB/72815LB/72825LB/72835LB/72845LB CMOS Dual SyncFIFOTM
256 x 18, 512 x 18, 1,024 x 18, 2,048 x 18 and 4,096 x 18
JANUARY 13, 2009
PIN CONFIGURATIONS (Continued)
TQFP (PK128-1, order code: PF)
TOP VIEW
VCC
LDA
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
28
29
30
31
32
33
34
35
36
37
38
PAFA
RXIA
FFA
WXOA/HFA
RXOA
QA0
QA1
GND
QA2
QA3
VCC
QA4
GND
QA5
QA6
QA7
QA8
GND
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
PAEB
FLB
WCLKB
WENB
WXIB
VCC
PAFB
RXIB
FFB
WXOB/HFB
RXOB
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
102
101
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
OEA
RSA
VCC
GND
EFA
QA17
QA16
GND
QA15
VCC
QA14
QA13
GND
QA12
QA11
VCC
QA10
QA9
DB8
DB9
DB10
DB11
DB12
DB13
DB14
DB15
DB16
DB17
RCLKB
RENB
LDB
OEB
RSB
VCC
GND
EFB
WXIA
WENA
WCLKA
FLA
PAEA
DA0
DA1
DA2
DA3
DA4
DA5
DA6
DA7
DA8
DA9
DA10
DA11
DA12
DA13
DA14
DA16
DA17
GND
RCLKA
RENA
QB0
QB1
GND
Q
B
2
QB3
V
CC
QB4
GND
QB5
QB6
QB7
QB8
GND
QB9
QB10
V
CC
QB11
QB12
GND
QB13
QB14
V
CC
QB15
GND
QB16
QB17
104
103
INDEX
GND
DA15
3139 drw 02a