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CY7C024AV/025AV/026AV
CY7C0241AV/0251AV/036AV
3.3V 4K/8K/16K x 16/18 Dual-Port Static RAM
Features
• True dual-ported memory cells which allow
simultaneous access of the same memory location
• 4/8/16K × 16 organization (CY7C024AV/025AV/026AV)
• 4/8K × 18 organization (CY7C0241AV/0251AV)
• 16K × 18 organization (CY7C036AV)
• 0.35-micron CMOS for optimum speed/power
• High-speed access: 20 and 25 ns
• Low operating power
— Active: I
CC
= 115 mA (typical)
— Standby: I
SB3
= 10
μA
(typical)
• Fully asynchronous operation
• Automatic power-down
• Expandable data bus to 32/36 bits or more using
Master/Slave chip select when using more than one
device
• On-chip arbitration logic
• Semaphores included to permit software handshaking
between ports
• INT flag for port-to-port communication
• Separate upper-byte and lower-byte control
• Pin select for Master or Slave
• Commercial and industrial temperature ranges
• Available in 100-pin Lead (Pb)-free TQFP and 100-pin
TQFP
Logic Block Diagram
R/W
L
UB
L
R/W
R
UB
R
CE
L
LB
L
OE
L
8/9
8/9
8/9
CE
R
LB
R
OE
R
[1]
[1]
I/O
8/9L
–I/O
15/17L
[2]
I/O
0L
–I/O
7/8L
I/O
Control
I/O
Control
8/9
I/O
8/9L
–I/O
15/17R
[2]
I/O
0L
–I/O
7/8R
A
0L
–A
11/1213L
[3]
12/13/14
Address
Decode
12/13/14
True Dual-Ported
RAM Array
Address
Decode
12/13/14
12/13/14
A
0R
–A
11/12/13R
[3]
[3]
[3]
A
0L
–A
11/12/13L
CE
L
OE
L
R/W
L
SEM
L
[4]
BUSY
L
INT
L
UB
L
LB
L
Notes:
1. I/O
8
–I/O
15
for x16 devices; I/O
9
–I/O
17
for x18 devices.
2. I/O
0
–I/O
7
for x16 devices; I/O
0
–I/O
8
for x18 devices.
3. A
0
–A
11
for 4K devices; A
0
–A
12
for 8K devices; A
0
–A
13
for 16K devices.
4. BUSY is an output in master mode and an input in slave mode.
Interrupt
Semaphore
Arbitration
A
0R
–A
11/12/13R
CE
R
OE
R
R/W
R
SEM
R
[4]
M/S
BUSY
R
INT
R
UB
R
LB
R
Cypress Semiconductor Corporation
Document #: 38-06052 Rev. *H
•
3901 North First Street
•
San Jose
,
CA 95134
•
408-943-2600
Revised June 15, 2005
CY7C024AV/025AV/026AV
CY7C0241AV/0251AV/036AV
Pin Configurations
100-Pin TQFP
Top View
OE
L
V
CC
R/W
L
SEM
L
CE
L
UB
L
LB
L
NC
[5]
A
11L
A
10L
I/O
4L
I/O
3L
I/O
2L
GND
I/O
9L
I/O
8L
I/O
7L
I/O
6L
I/O
5L
I/O
1L
I/O
0L
A
9L
A
8L
A
7L
A
6L
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
NC
NC
NC
NC
I/O
10L
I/O
11L
I/O
12L
I/O
13L
GND
I/O
14L
I/O
15L
V
CC
GND
I/O
0R
I/O
1R
I/O
2R
V
CC
I/O
3R
I/O
4R
I/O
5R
I/O
6R
NC
NC
NC
NC
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
NC
NC
NC
NC
A
5L
A
4L
A
3L
A
2L
A
1L
A
0L
INT
L
BUSY
L
GND
M/S
BUSY
R
INT
R
A
0R
A
1R
A
2R
A
3R
A
4R
NC
NC
NC
NC
CY7C024AV (4K × 16)
CY7C025AV (8K × 16)
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
I/O
7R
I/O
8R
I/O
9R
I/O
10R
I/O
11R
I/O
12R
I/O
13R
I/O
14R
GND
I/O
15R
Œ
R
R/W
R
GND
SEM
R
CE
R
UB
R
LB
R
NC
[6]
A
11R
A
10R
A
9R
A
8R
Notes:
5. A
12L
on the CY7C025AV.
6. A
12R
on the CY7C025AV.
Document #: 38-06052 Rev. *H
A
7R
A
6R
A
5R
Page 2 of 19
CY7C024AV/025AV/026AV
CY7C0241AV/0251AV/036AV
Pin Configurations
(continued)
100-Pin TQFP
I/O
10L
I/O
9L
I/O
7L
I/O
6L
I/O
5L
I/O
4L
I/O
3L
I/O
2L
GND
I/O
1L
I/O
0L
Top View
UB
L
LB
L
NC
[7]
A
11L
A
10L
A
9L
A
8L
A
7L
A
6L
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
NC
NC
I/O
8L
I/O
17L
I/O
11L
I/O
12L
I/O
13L
I/O
14L
GND
I/O
15L
I/O
16L
V
CC
GND
I/O
0R
I/O
1R
I/O
2R
V
CC
I/O
3R
I/O
4R
I/O
5R
I/O
6R
I/O
8R
I/O
17R
NC
NC
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
NC
NC
NC
NC
A
5L
A
4L
A
3L
A
2L
A
1L
A
0L
INT
L
BUSY
L
GND
M/S
BUSY
R
INT
R
A
0R
A
1R
A
2R
A
3R
A
4R
NC
NC
NC
NC
CY7C0241AV (4K × 18)
CY7C0251AV (8K × 18)
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
NC
NC
NC
NC
I/O10L
I/O11L
I/O12L
I/O13L
GND
I/O14L
I/O15L
VCC
GND
I/O0R
I/O1R
I/O2R
VCC
I/O3R
I/O4R
I/O5R
I/O6R
NC
NC
NC
NC
75
1
74
2
73
3
72
4
71
5
6
70
69
7
8
68
9
67
10
66
11
65
12
64
13
63
14
62
61
15
60
16
59
17
18
58
19
57
20
56
21
55
22
54
23
53
24
52
25
51
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
NC
NC
NC
A6L
A5L
A4L
A3L
A2L
A1L
A0L
INTL
BUSYL
GND
M/S
BUSYR
INTR
A0R
A1R
A2R
A3R
A4R
A5R
NC
NC
NC
Notes:
7. A
12L
on the CY7C0251AV.
8. A
12R
on the CY7C0251AVC.
Document #: 38-06052 Rev. *H
I/O7R
I/O8R
I/O9R
I/O10R
I/O11R
I/O12R
I/O13R
I/O14R
GND
I/O15R
OER
R/WR
GND
SEMR
CER
UBR
LBR
A13R
A12R
A11R
A10R
A9R
A8R
A7R
A6R
I/O9L I/O
7R
I/O8L I/O
9R
I/O7L I/O
10R
I/O6L I/O
11R
I/O5L I/O
12R
I/O4L I/O
13R
I/O3L I/O
14R
I/O2L I/O
15R
GND GND
I/O1L I/O
16R
I/O0L OE
R
OEL R/W
R
GND
VCC
SEM
R
R/WL
CE
R
SEML
UB
R
CEL
LB
R
UBL
NC
[8]
LBL
A
11R
A13L
A
10R
A12L
A
9R
A11L
A
8R
A10L
A
7R
A9L
A
6R
A8L
A
5R
A7L
CY7C026AV (16K × 16)
OE
L
V
CC
R/W
L
SEM
L
CE
L
Page 3 of 19
CY7C024AV/025AV/026AV
CY7C0241AV/0251AV/036AV
Pin Configurations
(continued)
100-Pin TQFP
Top View
I/O
10L
I/O
9L
I/O
7L
I/O
6L
I/O
5L
OE
L
V
CC
R/W
L
SEM
L
CE
L
I/O
4L
I/O
3L
I/O
2L
GND
I/O
1L
I/O
0L
UB
L
LB
L
A
12L
A
11L
A
10L
A
9L
A
8L
A
7L
A
6L
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
NC
NC
I/O
8L
I/O
17L
I/O
11L
I/O
12L
I/O
13L
I/O
14L
GND
I/O
15L
I/O
16L
V
CC
GND
I/O
0R
I/O
1R
I/O
2R
V
CC
I/O
3R
I/O
4R
I/O
5R
I/O
6R
I/O
8R
I/O
17R
NC
NC
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
NC
NC
NC
A
13L
A
5L
A
4L
A
3L
A
2L
A
1L
A
0L
INT
L
BUSY
L
GND
M/S
BUSY
R
INT
R
A
0R
A
1R
A
2R
A
3R
A
4R
A
13R
NC
NC
NC
CY7C036AV (16K × 18)
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
I/O
7R
I/O
9R
I/O
10R
I/O
11R
I/O
12R
I/O
13R
I/O
14R
I/O
15R
GND
I/O
16R
OE
R
R/W
R
GND
SEM
R
CE
R
UB
R
LB
R
A
12R
A
11R
A
10R
A
9R
A
8R
Selection Guide
CY7C024AV/025AV/026AV
CY7C0241AV/0251AV/036AV
-20
Maximum Access Time
Typical Operating Current
Typical Standby Current for I
SB1
(Both ports TTL Level)
Typical Standby Current for I
SB3
(Both ports CMOS Level)
20
120
35
10
CY7C024AV/025AV/026AV
CY7C0241AV/0251AV/036AV
-25
25
115
30
10
Unit
ns
mA
mA
μA
Document #: 38-06052 Rev. *H
A
7R
A
6R
A
5R
Page 4 of 19
