74LVC273PW Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
74LVC273PW Datasheet PDF : 10 Pages
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Philips Semiconductors
Octal D-type flip-flop with reset; positive-edge trigger
Product specification
74LVC273
TEST CIRCUIT
VCC
PULSE
GENERATOR
VI
RT
VO
D.U.T.
CL
Test Circuit for 3-State Outputs
S1
VS1
Open
GND
RL
RL
90%
NEGATIVE
PULSE
POSITIVE
PULSE
10%
VM
10%
tW
VM
10%
tTHL (tf)
tTLH (tr)
90%
VM
90%
VM
tW
VM = 1.5V
Input Pulse Definition
90%
VI
0V
tTLH (tr)
tTHL (tf)
VI
10%
0V
Switch position
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
VS1
GND
VCC
< 2.7V
2.7–3.6V
VI
VCC
2.7V
VS1
2 < VCC
2 < VCC
DEFINITIONS
RL = Load resistor; see AC CHARACTERISTICS for value.
CL = Load capacitance includes jig and probe capacitance: See AC
CHARACTERISTICS for value.
RT = Termination resistance should be equal to ZOUT of pulse generators.
Waveform 4. Load circuitry for switching times
SY00044
1998 May 20
6
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