74ALS174 查看數據表（PDF） - Philips Electronics
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74ALS174 Datasheet PDF : 8 Pages
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Philips Semiconductors
Hex D flip-flop
Product specification
74ALS174
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST CONDITIONS1
LIMITS
MIN TYP2 MAX
UNIT
VOH
High-level output voltage
VCC±10%, VIL = MAX, VIH = MIN, IOH = MAX VCC – 2
V
VOL
Low-level output voltage
VCC = MIN, VIL = MAX,
VIH = MIN
IOL = 4mA
IOL = 8mA
0.25
0.4
V
0.35 0.50
V
VIK
Input clamp voltage
VCC = MIN, II = IIK
–0.73 –1.5
V
II
Input current at maximum input voltage VCC = MAX, VI = 7.0V
100
µA
IIH
High-level input current
VCC = MAX, VI = 2.7V
20
µA
IIL
Low-level input current
VCC = MAX, VI = 0.5V
–0.1
mA
IO
Output current3
VCC = MAX, VO = 2.25V
–30
–112
mA
ICC
Supply current (total)
VCC = MAX
7
14
mA
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.
2. All typical values are at VCC = 5V, Tamb = 25°C.
3. The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
fMAX
tPLH
tPHL
tPHL
Maximum clock frequency
Propagation delay
CP to Qn
Propagation delay, MR to Qn
AC SETUP REQUIREMENTS
SYMBOL
PARAMETER
tsu(H)
tsu(L)
th(H)
th(L)
tw(H)
tw(L)
tw(L)
tREC
Setup time, High or Low
Dn to CP
Hold time, High or Low
Dn to CP
CP pulse width,
High or Low
MR pulse width, Low
Recovery time, MR to CP
TEST CONDITION
Waveform 1
Waveform 1
Waveform 2
TEST CONDITION
Waveform 3
Waveform 3
Waveform 1
Waveform 2
Waveform 2
LIMITS
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF, RL = 500Ω
MIN
MAX
60
5.0
15.0
5.0
15.0
8.0
18.0
UNIT
MHz
ns
ns
LIMITS
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF, RL = 500Ω
MIN
MAX
6.0
6.0
0.0
0.0
8.0
8.0
6.0
6.0
UNIT
ns
ns
ns
ns
ns
1991 Feb 08
4
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