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| 74F805 Datasheet, PDF (5/8 Pages) NXP Semiconductors – Hex 2-input NOR drivers | |||
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Philips Semiconductors
Hex 2-input NOR drivers
Product specification
74F805/74F1805
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
TEST
CONDITION
LIMITS
Tamb = +25°C
VCC = +5.0V
CL = 50pF,
RL = 500â¦
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF,
RL = 500â¦
MIN TYP MAX
MIN
MAX
tPLH
Propagation delay
tPHL
Dna, Dnb to Qn
Waveform 1
1.0
2.0
4.0
1.0
2.5
4.5
1.0
1.0
4.0
4.5
tsk(o)
Output skew1,2
Waveform 2
1.5
1.5
NOTES:
1. [tPN actual â tPM actual] for any output compared to any other output where N and M are either LH or HL.
2. Skew times are valid only under same test conditions (temperature, VCC, loading, etc.,).
UNIT
ns
ns
AC WAVEFORMS
Dna, Dnb
VM
VM
tPHL
tPLH
Qn
VM
VM
SF00005
Waveform 1. Propagation delay for inverting output
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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