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參數(shù)資料
| 型號： | 7C421-20 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | 256/512/1K/2K/4K x 9 Asynchronous FIFO |
| 中文描述： | 256/512/1K/2K/4K × 9異步FIFO |
| 文件頁數(shù)： | 2/22頁 |
| 文件大?。?/td> | 522K |
| 代理商： | 7C421-20 |
CY7C419/21/25/29/33
Document #: 38-06001 Rev. *A
Page 2 of 22
Maximum Rating
[1]
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Storage Temperature .................................–
65
°
C to +150
°
C
Ambient Temperature with
Power Applied.............................................
–
55
°
C to +125
°
C
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.
DC Voltage Applied to Outputs
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
Static Discharge Voltage ...........................................>2000V
(per MIL
–
STD
–
883, Method 3015)
Latch-Up Current.....................................................>200 mA
RAMARRAY
256x 9
512x 9
1024x 9
2048x 9
4096x 9
Logic Block Diagram
Pin Configurations
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
24
23
22
21
25
28
27
26
Top View
DIP
7C420/1
7C432/3
W
D
8
D
3
D
2
D
1
D
0
XI
FF
Q
0
Q
1
Q
2
Q
3
Q
8
GND
Vcc
D
4
D
5
D
6
D
7
FL/RT
MR
EF
XO/HF
Q
7
Q
6
Q
5
Q
4
R
PLCC/LCC
Top View
N
3
8
4 3 2 1 323130
5
6
7
8
9
10
11
12
13
14 151617 181920
G
29
28
27
26
25
24
23
22
21
FL/RT
MR
EF
Q
7
Q
6
D
6
D
7
NC
READ
CONTROL
WRITE
CONTROL
WRITE
POINTER
RESET
LOGIC
EXPANSION
LOGIC
DATAINPUTS
(D0
–
D8)
THREE-
STATE
BUFFERS
DATA OUTPUTS
(Q0
–
Q8)
W
READ
POINTER
FLAG
LOGIC
R
XI
EF
FF
XO/HF
MR
FL/RT
D
2
D
1
D
0
XI
FF
Q
0
Q
1
NC
Q
2
D
D
W
V
D
4
D
5
c
Q
Q
N
R
Q
Q
3
8
4
5
C420
–
1
C420
–
2
C420
–
3
77C433
7C419
26
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
9 10 11 12 13 14 15
32 3130 29 28 27
25
Q
1
XI
FF
Q
0
D
1
D
0
NC
NC
D
6
D
5
D
4
V
C
W
D
8
D
3
D
2
D
7
FL/RT
NC
NC
MR
EF
XO/HF
Q
7
C420
–
4
Top View
TQFP
Q
2
Q
3
Q
8
G
R
Q
4
Q
5
Q
6
16
7C419
7C421/5/9
7C433
Selection Guide
256 x 9
512 x 9 (600-mil only)
512 x 9
1K x 9 (600-mil only)
1K x 9
2K x 9 (600-mil only)
2K x 9
4K x 9 (600-mil only)
4K x 9
Frequency (MHz)
Maximum Access Time (ns)
I
CC1
(mA)
7C419
–
10
7C419
–
15
7C419
–
30
7C419
–
40
7C420
–
40
7C421
–
40
7C424
–
40
7C425
–
40
7C420
–
20
7C421
–
20
7C424
–
20
7C425
–
20
7C428
–
20
7C429
–
20
7C420
–
25
7C421
–
25
7C424
–
25
7C425
–
25
7C420
–
65
7C421
–
65
7C424
–
65
7C425
–
65
7C428
–
65
7C429
–
65
7C421
–
10
7C421
–
15
7C421
–
30
7C424
–
30
7C425
–
30
7C425
–
10
7C425
–
15
7C429
–
10
7C429
–
15
7C429
–
25
7C432
–
25
7C433
–
25
28.5
25
35
7C429
–
30
7C429
–
40
7C432
–
40
7C433
–
40
20
40
35
7C433
–
10
50
10
35
7C433
–
15
40
15
35
7C433
–
20
33.3
20
35
7C433
–
30
25
30
35
7C433
–
65
12.5
65
35
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 7C421-25 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:256/512/1K/2K/4K x 9 Asynchronous FIFO |
| 7C421-30 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:256/512/1K/2K/4K x 9 Asynchronous FIFO |
| 7C421-30DMB | 制造商: 功能描述: 制造商:undefined 功能描述: |
| 7C421-40 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:256/512/1K/2K/4K x 9 Asynchronous FIFO |
| 7C4215AT | 制造商:Cypress Semiconductor 功能描述: |
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