N74ALS574ADB 查看數據表（PDF） - Philips Electronics
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N74ALS574ADB Datasheet PDF : 13 Pages
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Philips Semiconductors
Latch/flip-flop
Product specification
74ALS573B/74ALS574A
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
fMAX
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation delay
Dn to Qn
Propagation delay
E to Qn
Output enable time
to High or Low level
Output disable time
from High or Low level
Maximum clock frequency
Propagation delay
CP to Qn
Output enable time
to High or Low level
Output disable time
from High or Low level
AC SETUP CHARACTERISTICS
SYMBOL
PARAMETER
tsu(H)
tsu(L)
th(H)
th(L)
tw(H)
tsu(H)
tsu(L)
th(H)
th(L)
tw(H)
tw(L)
Setup time, High or Low
Dn to E
Hold time, High or Low
Dn to E
E Pulse width, High
Setup time, High or Low
Dn to CP
Hold time, High or Low
Dn to CP
CP Pulse width,
High or Low
TEST CONDITION
74ALS573B
74ALS574A
Waveform 3
Waveform 2
Waveform 6
Waveform 7
Waveform 6
Waveform 7
Waveform 1
Waveform 1
Waveform 6
Waveform 7
Waveform 6
Waveform 7
LIMITS
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF, RL = 500Ω
MIN
MAX
2.0
10.0
2.0
10.0
4.0
12.0
4.0
12.0
2.0
9.0
4.0
11.0
1.0
9.0
2.0
11.0
45
3.0
12.0
4.0
12.0
2.0
9.0
4.0
11.0
1.0
9.0
2.0
11.0
UNIT
ns
ns
ns
ns
MHz
ns
ns
ns
TEST CONDITION
74ALS573B
74ALS574A
Waveform 4
Waveform 4
Waveform 1
Waveform 5
Waveform 5
Waveform 5
LIMITS
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF, RL = 500Ω
MIN
MAX
6.0
6.0
6.0
6.0
10.0
6.0
6.0
1.0
1.0
8.0
12.0
UNIT
ns
ns
ns
ns
ns
ns
1991 Feb 08
7
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