參數(shù)資料
型號: CY7C4425-25ASC
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: DRAM
英文描述: 64/256/512/1K/2K/4K x18 Low-Voltage Synchronous FIFOs
中文描述: 64 X 18 OTHER FIFO, 15 ns, PQFP64
封裝: 10 X 10 MM, TQFP-64
文件頁數(shù): 5/25頁
文件大小: 409K
代理商: CY7C4425-25ASC
CY7C4425/4205/4215
CY7C4225/4235/4245
5
Notes:
7.
8.
9.
Tested initially and after any design or process changes that may affect these parameters.
C
L
= 30 pF for all AC parameters except for t
OHZ
.
C
L
= 5 pF for t
OHZ
.
Capacitance
[7]
Parameter
Description
Test Conditions
T
A
= 25
°
C, f = 1 MHz,
V
CC
= 5.0V
Max.
5
7
Unit
pF
pF
C
IN
C
OUT
Input Capacitance
Output Capacitance
AC Test Loads and Waveforms
[8, 9]
3.0V
5V
OUTPUT
R11.1K
R2
680
C
L
INCLUDING
JIG AND
SCOPE
GND
90%
10%
90%
10%
< 3 ns
< 3 ns
OUTPUT
1.91V
Equivalentto:
TEVENIN
EQUIVALENT
410
42X5–4
ALL INPUT PULSES
42X5–5
Switching Characteristics
Over the Operating Range
Parameter
t
S
t
A
t
CLK
t
CLKH
t
CLKL
t
DS
t
DH
t
ENS
t
ENH
t
RS
t
RSR
t
RSF
t
PRT
t
RTR
t
OLZ
t
OE
t
OHZ
t
WFF
t
REF
t
PAFasynch
Description
7C42X5-10
Min.
7C42X5-15
Min.
7C42X5-25
Min.
7C42X5-35
Min.
Max.
100
8
Max.
66.7
10
Max.
40
15
Max.
28.6
20
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Clock Cycle Frequency
Data Access Time
Clock Cycle Time
Clock HIGH Time
Clock LOW Time
Data Set-Up Time
Data Hold Time
Enable Set-Up Time
Enable Hold Time
Reset Pulse Width
[10]
Reset Recovery Time
Reset to Flag and Output Time
Retransmit Pulse Width
Retransmit Recovery Time
Output Enable to Output in Low Z
[11]
Output Enable to Output Valid
Output Enable to Output in High Z
[12]
Write Clock to Full Flag
Read Clock to Empty Flag
Clock to Programmable Almost-Full Flag
[12]
(Asynchronous mode, V
CC
/SMODE tied to V
CC
)
2
2
2
25
10
10
6
1
6
1
25
15
2
10
4.5
4.5
3
0.5
3
0.5
10
8
15
6
6
4
1
4
1
15
10
35
14
14
7
2
7
2
35
20
10
15
25
35
12
12
0
3
3
15
15
0
3
3
25
25
0
3
3
35
35
0
3
3
7
7
8
8
12
8
8
10
10
16
12
12
15
15
20
15
15
20
20
25
相關(guān)PDF資料
PDF描述
CY7C4205-25ASC 64/256/512/1K/2K/4K x18 Low-Voltage Synchronous FIFOs
CY7C4215-25ASC 64/256/512/1K/2K/4K x18 Low-Voltage Synchronous FIFOs
CY7C4235-25ASC 64/256/512/1K/2K/4K x18 Low-Voltage Synchronous FIFOs
CY7C4245-25ASC 64/256/512/1K/2K/4K x18 Low-Voltage Synchronous FIFOs
CY7C4425-25ASI 64/256/512/1K/2K/4K x18 Low-Voltage Synchronous FIFOs
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