CY7C419/21/25/29/33
DATAINPUTS
(D –D
Logic Block Diagram
Pin Configurations
)
8
0
DIP
Top View
PLCC/LCC
Top View
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
V
cc
W
D
D
4
D
5
D
6
4
3
2
1
323130
29
8
3
2
D
2
D
6
5
WRITE
W
D
D
D
D
RAM ARRAY
256x 9
D
D
6
7
8
9
10
11
12
13
28
27
26
CONTROL
7
1
25
24
23
22
21
NC
D
0
512x 9
D
7
1
0
7C419
XI
FF
FL/RT
MR
EF
WRITE
POINTER
1024x 9
2048x 9
4096x 9
READ
POINTER
7C419
FL/RT
MR
EF
7C420/1
7C424/5
7C428/9
7C432/3
7C421/5/9 25
XI
FF
Q
0
7C433
Q
0
24
23
22
21
Q
1
XO/HF
20
19
18
17
16
15
XO/HF
NC
Q
2
Q
7
Q
1
Q
7
Q
6
Q
Q
Q
Q
Q
Q
2
3
8
6
5
4
14 15 1617 181920
THREE-
STATE
C420–2
BUFFERS
GND
R
TQFP
Top View
DATA OUTPUTS
C420–3
(Q –Q )
0
8
MR
RESET
LOGIC
FL/RT
READ
CONTROL
R
32 3130 29 28 27 26 25
FLAG
EF
FF
D
LOGIC
7
D
D
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
1
FL/RT
NC
0
NC
7C419
7C421/5/9
7C433
NC
XI
NC
EXPANSION
LOGIC
XI
MR
EF
XO/HF
C420–1
FF
Q
0
XO/HF
Q
1
Q
7
9
10 11 12 13 14 15 16
C420–4
Selection Guide
256 x 9
7C419–10 7C419–15
7C419–30 7C419–40
7C420–40 7C420–65
512 x 9 (600-mil only)
512 x 9
7C420–20 7C420–25
7C421–10 7C421–15 7C421–20 7C421–25 7C421–30 7C421–40 7C421–65
7C424–20 7C424–25 7C424–30 7C424–40 7C424–65
1K x 9 (600-mil only)
1K x 9
7C425–10 7C425–15 7C425–20 7C425–25 7C425–30 7C425–40 7C425–65
2K x 9 (600-mil only)
2K x 9
7C428–20
7C429–10 7C429–15 7C429–20 7C429–25 7C429–30 7C429–40 7C429–65
7C432–25 7C432–40
7C433–10 7C433–15 7C433–20 7C433–25 7C433–30 7C433–40 7C433–65
7C428–65
4K x 9 (600-mil only)
4K x 9
Frequency (MHz)
50
10
35
40
15
35
33.3
20
28.5
25
25
30
35
20
40
35
12.5
65
Maximum Access Time (ns)
ICC1 (mA)
35
35
35
DC Voltage Applied to Outputs
Maximum Rating [1]
in High Z State................................................–0.5V to +7.0V
DC Input Voltage ............................................–0.5V to +7.0V
Power Dissipation.......................................................... 1.0W
Output Current, into Outputs (LOW)............................ 20 mA
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Storage Temperature .................................–65°C to +150°C
Static Discharge Voltage ........................................... >2000V
(per MIL–STD–883, Method 3015)
Ambient Temperature with
Power Applied.............................................–55°C to +125°C
Latch-Up Current..................................................... >200 mA
Supply Voltage to Ground Potential............... –0.5V to +7.0V
Note:
1. Single Power Supply: The voltage on any input or I/O pin can not exceed the power pin during power-up.
Document #: 38-06001 Rev. *A
Page 2 of 22
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