參數(shù)資料
型號(hào): 74F225
廠商: NXP Semiconductors N.V.
英文描述: BRIDGE RECTIFIER, 4A, 800V
中文描述: 16X5異步FIFO的三態(tài)
文件頁(yè)數(shù): 7/14頁(yè)
文件大?。?/td> 122K
代理商: 74F225
Philips Semiconductors
Product specification
74F225
16
×
5 asynchronous FIFO (3-State)
June 15, 1992
7
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
amb
= +25
°
C
V
CC
= +5.0V
C
L
= 50pF, R
L
= 500
MIN
TYP
T
amb
= 0
°
C to +70
°
C
V
CC
= +5.0V
±
10%
C
L
= 50pF, R
L
= 500
MIN
SYMBOL
PARAMETER
TEST
UNIT
CONDITION
MAX
MAX
f
MAX
Maximum clock frequency,
Cascade mode
Waveform 2 and 3
25
25
MHz
t
PLH
t
PHL
t
PLH
t
PHL
Propagation delay
UNCPIN to Qn
Waveform 2
10.0
9.5
13.0
12.0
19.5
16.0
9.0
8.5
22.0
19.0
ns
Propagation delay
UNCPIN to OR
Waveform 2
16.0
6.0
20.0
8.5
25.0
11.0
14.0
5.0
29.0
12.0
ns
t
SK
Output skew
Qn to OR
Propagation delay
UNCPIN to IR
Waveform 4
2.0
12.0
0.0
15.0
ns
t
PLH
Waveform 2
50
60
70
50
85
ns
t
PLH
Propagation delay
CPA or CPB to OR
Waveform 4
55
65
75
50
90
ns
t
PLH
t
PHL
Propagation delay
CPA or CPB to UNCPOUT
Waveform 4
20.0
8.5
23.0
11.5
27.0
15.0
17.0
7.5
29.0
16.0
ns
t
w
(L)
Pulse width, Low
UNCPOUT
Waveform 4
12.0
ns
t
PHL
Propagation delay
CPA or CPB to IR
Waveform 3
11.0
13.5
17.0
9.0
19.0
ns
t
PHL
Propagation delay
MR to OR
Waveform 3
5.5
8.5
11.5
5.0
13.0
ns
t
PHL
Propagation delay
MR to IR
Waveform 3
2.0
4.0
7.0
1.5
7.5
ns
t
PZH
t
PZL
t
PHZ
t
PLZ
Output enable time to
High or Low level
Waveform 5
Waveform 6
1.5
2.5
3.5
4.5
6.5
7.5
1.0
2.0
7.0
9.0
ns
Output disable time from
High or Low level
Waveform 5
Waveform 6
1.5
2.0
3.5
4.0
7.0
7.0
1.0
1.5
7.5
7.5
ns
AC SETUP REQUIREMENTS
LIMITS
T
amb
= +25
°
C
V
CC
= +5.0V
C
L
= 50pF, R
L
= 500
MIN
TYP
T
amb
= 0
°
C to +70
°
C
V
CC
= +5.0V
±
10%
C
L
= 50pF, R
L
= 500
MIN
SYMBOL
PARAMETER
TEST
UNIT
CONDITION
MAX
MAX
t
s
(H)
t
s
(L)
t
h
(H)
t
h
(L)
Setup time, High or Low
Dn to CPA or CPB
Waveform 1
0.0
0.0
0.0
0.0
ns
Hold time, High or Low
Dn to CPA or CPB
Waveform 1
14.0
12.5
16.5
14.0
ns
t
rec
Recovery time
MR to CPA or CPB
Waveform 1
0.0
0.0
ns
t
w
(H)
t
w
(L)
CPA or CPB pulse width,
High or Low
Waveform 1
6.5
3.0
8.5
3.5
ns
t
w
(L)
UNCPIN pulse width,
High or Low
Waveform 2
24.0
3.5
28.0
4.0
ns
t
w
(L)
MR pulse width, Low
Waveform 1
3.5
4.5
ns
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