CY7C4225-15ASC Cypress Semiconductor Corp, CY7C4225-15ASC Datasheet - Page 2
![](/photos/31/34/313434/42864tqfp_sml.jpg)
CY7C4225-15ASC
Manufacturer Part Number
CY7C4225-15ASC
Description
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.CY7C4225-15ASC.pdf
(22 pages)
Specifications of CY7C4225-15ASC
Configuration
Dual
Density
18Kb
Access Time (max)
10ns
Word Size
18b
Organization
1Kx18
Sync/async
Synchronous
Expandable
Yes
Bus Direction
Uni-Directional
Package Type
TQFP
Clock Freq (max)
66.7MHz
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Supply Current
45mA
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
64
Lead Free Status / RoHS Status
Not Compliant
Logic Block Diagram
Pin Configuration
Document Number: 001-45652 Rev. **
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Figure 1.
WXO/HF
FL/RT
CY7C4425
CY7C4205
CY7C4215
CY7C4225
CY7C4235
CY7C4245
RXO
WXI
RXI
RS
TQFP (Top View)
WCLK
EXPANSION
CONTROL
POINTER
WRITE
WRITE
RESET
LOGIC
LOGIC
WEN
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
Q
Q
GND
Q
Q
V
Q
Q
GND
Q
Q
Q
Q
GND
Q
V
CC
CC
14
13
12
11
10
9
8
7
6
5
4
OUTPUT REGISTER
REGISTER
TRI–STATE
256 x 18
512 x 18
64 x 18
1K x 18
2K x 18
4K x 18
ARRAY
INPUT
Q
D
RAM
0–17
0–17
GND
V
D
D
D
D
D
D
CC
D
D
D
D
D
D
D
D
D
14
13
12
11
10
9
5
1
8
7
6
4
3
2
0
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
OE
2728 2930
9 8 7
6
Figure 2. PLCC (Top View)
RCLK
3132 33 34 35 36 37 38 3940 4142 43
5
PROGRAM
REGISTER
CONTROL
POINTER
FLAG
LOGIC
READ
READ
FLAG
4
CY7C4425
CY7C4205
CY7C4215
CY7C4225
CY7C4235
CY7C4245
3 2 1 68
REN
CY7C4425/4205/4215
CY7C4225/4235/4245
67
FF
EF
PAE
PAF
SMODE
66 65 64 63 62 61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
Page 2 of 22
V
Q
Q
GND
Q
Q
V
Q
Q
GND
Q
Q
V
Q
Q
GND
Q
CC
CC
CC
14
13
12
11
10
9
8
7
6
5
4
/SMODE
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