N74F154N Ver la hoja de datos (PDF) - Philips Electronics
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N74F154N Datasheet PDF : 8 Pages
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Philips Semiconductors
Decoder/demultiplexer
Product specification
74F154
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
tPLH
Propagation delay
tPHL
An to Qn
tPLH
Propagation delay
tPHL
En to Qn
AC WAVEFORMS
For all waveforms, VM = 1.5V.
An
VM
VM
tPHL
tPLH
Qn
VM
VM
TEST
CONDITION
Waveform 1
Waveform 2
LIMITS
VCC = +5.0V
Tamb = +25°C
CL = 50pF, RL = 500Ω
MIN TYP MAX
VCC = +5.0V ± 10%
Tamb = 0°C to +70°C
CL = 50pF, RL = 500Ω
MIN
MAX
2.0
5.0
9.5
1.5
10.5
3.5
6.5 10.0
3.0
10.5
2.0
4.0
7.5
1.5
8.0
4.0
6.0
9.0
3.5
9.5
UNIT
ns
ns
En
VM
VM
tPHL
tPLH
Qn,
VM
VM
SF00133
Waveform 1. Propagation Delay for Address to Output
SF00684
Waveform 2. Propagation Delay for Enable to Output
TEST CIRCUIT AND WAVEFORMS
VIN
PULSE
GENERATOR
VCC
VOUT
D.U.T.
NEGATIVE
PULSE
90%
tw
VM
10%
tTHL (tf )
VM
10%
tTLH (tr )
90%
AMP (V)
0V
RT
CL RL
Test Circuit for Totem-Pole Outputs
POSITIVE
PULSE
10%
tTLH (tr )
90%
VM
tw
tTHL (tf )
90%
VM
AMP (V)
10%
0V
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.
Input Pulse Definition
family
74F
INPUT PULSE REQUIREMENTS
amplitude VM rep. rate
tw
tTLH
3.0V 1.5V 1MHz 500ns 2.5ns
tTHL
2.5ns
SF00006
1990 Jan 08
5
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