74F283 Ver la hoja de datos (PDF) - Philips Electronics
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74F283 Datasheet PDF : 10 Pages
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Philips Semiconductors
4-bit binary full adder with fast carry
Product specification
74F283
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
TEST
CONDITIONS
tPLH
tPHL
Propagation delay
CIN to Σi
Waveform 1, 2
tPLH
tPHL
Propagation delay
Ai or Bi to Σi
Waveform 1, 2
tPLH
tPHL
Propagation delay
CIN to COUT
Waveform 2
tPLH
tPHL
Propagation delay
Ai or Bi to COUT
Waveform 1, 2
LIMITS
Tamb= +25°C
VCC = +5.V
CL = 50pF,
RL = 500Ω
Tamb = 0°C to +70°C
VCC = +5.V ± 10%
CL = 50pF,
RL = 500Ω
MIN
TYP
MAX
MIN
MAX
3.5
7.0
9.5
3.0
10.5
4.0
7.0
9.5
3.5
10.5
3.5
7.0
9.5
2.5
10.5
3.5
7.0
9.5
3.5
10.5
3.5
5.7
7.5
3.5
8.5
3.0
5.4
7.0
2.5
8.0
3.5
5.7
7.5
3.0
8.5
2.5
5.3
7.0
2.5
8.0
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
AC WAVEFORMS
For all waveforms, VM=1.5V.
Ai, Bi, CIN
Σi, COUT
VM
tPLH
VM
VM
tPHL
VM
Waveform 1. Propagation Delay
Operands and Carry Inputs to Outputs
SF00857
Ai, Bi, CIN
VM
VM
Σi, COUT
tPHL
tPLH
VM
VM
Waveform 2. Propagation Delay
Operands and Carry Inputs to Outputs
SF00858
TEST CIRCUIT AND WAVEFORM
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
1989 Mar 03
6
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