74F182 查看數據表（PDF） - Philips Electronics
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74F182 Datasheet PDF : 6 Pages
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Philips Semiconductors
Look-ahead carry generator
Product specification
74F182
AC WAVEFORMS
For all waveforms, VM = 1.5V
VIN
VM
VM
tPHL
tPLH
VOUT
VM
VM
SF00093
Waveform 1. Propagation Delay for Inverting Outputs
VIN
VOUT
VM
VM
tPLH
VM
tPHL
VM
SF00092
Waveform 2. Propagation Delay for Non-Inverting Outputs
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
1991 Apr 15
7
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