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参数资料
| 型号： | 933740360602 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 锁存器 |
| 英文描述： | F/FAST SERIES, NEGATIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PDIP16 |
| 封装： | 0.300 INCH, PLASTIC, SOT-38-4, DIP-16 |
| 文件页数： | 5/8页 |
| 文件大小： | 87K |
| 代理商： | 933740360602 |
Philips Semiconductors
Product specification
74F298
Quad 2-input multiplexer with storage
1989 Aug 14
5
AC SETUP REQUIREMENTS
LIMITS
SYMBOL
PARAMETER
TEST
CONDITION
Tamb = +25°C
VCC = +5.0V
CL = 50pF
RL = 500
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF
RL = 500
UNIT
MIN
TYP
MAX
MIN
MAX
ts(H)
ts(L)
Setup time, High or Low
I0n, I1n to CP
Waveform
NO TAG
2.0
ns
th(H)
th(L)
Hold time, High or Low
I0n, I1n to CP
Waveform
NO TAG
1.0
ns
ts(H)
ts(L)
Setup time, High or Low
S to CP
Waveform
NO TAG
6.0
5.0
7.0
6.0
ns
th(H)
th(L)
Hold time, High or Low
S to CP
Waveform
NO TAG
0
ns
tw(H)
tw(L)
CP Pulse width,
High or Low
Waveform
NO TAG
5.0
7.0
ns
AC WAVEFORMS
For all waveforms, VM = 1.5V.
The shaded areas indicate when the input is permitted to change for predictable output performance.
VM
1/fMAX
tW(L)
CP
Qn
tW(H)
VM
SF00863
tPLH
tPHL
Waveform 1.
Clock Input to Output, Clock Pulse Width, and
Maximum Clock Frequency
VM
th(H)
th(L)
Ion, I1n, S
CP
ts(L)
ts(H)
SF00864
VM
Waveform 2.
Data Setup and Hold Times
TEST CIRCUIT AND WAVEFORMS
tw
90%
VM
10%
90%
VM
10%
90%
VM
10%
90%
VM
10%
NEGATIVE
PULSE
POSITIVE
PULSE
tw
AMP (V)
0V
tTHL (tf )
INPUT PULSE REQUIREMENTS
rep. rate
tw
tTLH
tTHL
1MHz
500ns
2.5ns
Input Pulse Definition
VCC
family
74F
D.U.T.
PULSE
GENERATOR
RL
CL
RT
VIN
VOUT
Test Circuit for Totem-Pole Outputs
DEFINITIONS:
RL = Load resistor;
see AC ELECTRICAL CHARACTERISTICS for value.
CL = Load capacitance includes jig and probe capacitance;
see AC ELECTRICAL CHARACTERISTICS for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
tTHL (tf )
tTLH (tr )
AMP (V)
amplitude
3.0V
1.5V
VM
SF00006
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