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| 74F804 Datasheet, PDF (5/8 Pages) NXP Semiconductors – Hex 2-input NAND drivers | |||
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Philips Semiconductors
Hex 2-input NAND drivers
Product specification
74F804/1804
AC WAVEFORMS
Dna, Dnb
VM
VM
tPHL
tPLH
Qn
VM
VM
SF00005
Waveform 1. Propagation delay for inverting outputs
NOTE: For all waveforms, VM = 1.5V.
Qn
VM
tsk(0)
Qn
VM
SF00455
Waveform 2. Output skew
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
September 14, 1990
5
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