MC14502B Ver la hoja de datos (PDF) - Motorola => Freescale
Número de pieza
componentes Descripción
Fabricante
MC14502B Datasheet PDF : 6 Pages
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PULSE
GENERATOR
VDD
ID
DIS
INH Q1
D1 Q2
D2 Q3
D3 Q4
D4 Q5
D5 Q6
CL
CL
CL
CL
CL
D6
CL
20 ns
90%
Vin
10%
50%
20 ns
VDD
VSS
50%
DUTY
CYCLE
Figure 3. Power Dissipation Test Circuit and Waveform
PULSE
GENERATOR
16 VDD
DISABLE
INHIBIT Q1
D1 Q2
CL
D2 Q3
D3 Q4
D4 Q5
D5 Q6
D6
8
VSS
For all tTLH, tTHL, tPHL, and tPLH measurements Vin
may be applied to any other Dn input or to inhibit.
20 ns
INPUT
90%
tPHL
90%
OUTPUT
(TESTS 1 AND 2)
50%
tTHL
20 ns
VDD
50%
10% VSS
tPLH
VOH
10%
VOL
tTLH
Figure 4. AC Test Circuit and Waveforms
(tTLH, tTHL, TPLH, and tPHL)
Switch Positions for 3–State Test
Test
tPHZ
tPLZ
tPZL
tPZH
S1
Open
Closed
Closed
Open
S2
Closed
Open
Open
Closed
S3
Closed
Open
Open
Closed
S4
Open
Closed
Closed
Open
PULSE
GENERATOR
VDD
S4
S3
16 VDD
DISABLE
INHIBIT Q1
D1
Q2 CL
D2 Q3
D3 Q4
D4 Q5
D5 Q6
D6
8 VSS
VDD
1k
S1
S2
20 ns
DISABLE
tPLZ
Q OUTPUTS tPHZ
90%
50%
tPZL
10%
tPZH
90%
20 ns
VDD
10%
VSS
90% VOH
≈ 0.5 V @ VDD = 5 V,
10 V, AND 15 V
≈ 2 V @ VDD = 5 V
≈ 6 V @ VDD = 10 V
≈ 10 V @ VDD = 15 V
10%
VOL
Figure 5. 3–State AC Test Circuit and Waveforms
(tPHZ, tPLZ, tPZH, tPZL)
MOTOROLA CMOS LOGIC DATA
MC14502B
323
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