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CY7C027/028
CY7C037/038
Document #: 38-06042 Rev. *C
Page 3 of 20
Pin Configurations (continued)
100-Pin TQFP (Top View)
Note:
7. This pin is NC for CY7C037.
Selection Guide
CY7C027/028
CY7C037/038
-12[1]
CY7C027/028
CY7C037/038
-15
CY7C027/028
CY7C037/038
-20
Unit
Maximum Access Time
12
15
20
ns
Typical Operating Current
195
190
180
mA
Typical Standby Current for ISB1 (Both ports TTL level)
55
50
45
mA
Typical Standby Current for ISB3 (Both ports CMOS level)
0.05
0.05
0.05
mA
1
3
2
92 91 90
84
85
87 86
88
89
83 82 81
76
78 77
79
80
93
94
95
96
97
98
99
100
59
60
61
67
66
64
65
63
62
68
69
70
75
73
74
72
71
A8R
A9R
A10R
A11R
A12R
A13R
CE0R
A15R
UBR
SEMR
R/WR
GND
I/O17R
LBR
A14R
GND
OER
GND
I/O16R
I/O15R
I/O14R
I/O13R
I/O12R
I/O11R
CE1R
58
57
56
55
54
53
52
51
CY7C037 (32K x 18)
A9L
A10L
A11L
A12L
A13L
A14L
CE1L
LBL
CE0L
R/WL
OEL
I/O17L
I/O16L
UBL
A15L
VCC
GND
GND
I/O15L
I/O14L
I/O13L
I/O12L
I/O11L
I/O10L
SEML
17
16
15
9
10
12
11
13
14
8
7
6
4
5
18
19
20
21
22
23
24
25
34 35 36
42
41
39 40
38
37
43 44 45
50
48 49
47
46
33
32
31
30
29
28
27
26
CY7C038 (64K x 18)
[7]
[7]