mc14502b Freescale Semiconductor, Inc, mc14502b Datasheet - Page 4

• Manufacturer Part Number: mc14502b
• Description: Strobed Inverter/buffer
• Manufacturer: Freescale Semiconductor, Inc

MOTOROLA CMOS LOGIC DATA
(TESTS 1 AND 2)
Figure 4. AC Test Circuit and Waveforms
For all t TLH , t THL , t PHL , and t PLH measurements V in
may be applied to any other D n input or to inhibit.
OUTPUT
GENERATOR
INPUT
PULSE
20 ns
(t TLH , t THL , T PLH , and t PHL )
t PHL
90%
90%
50%
t THL
DISABLE
INHIBIT
D1
D2
D3
D4
D5
D6
16
8
V DD
50%
V SS
Q1
Q2
Q3
Q4
Q5
Q6
10%
Figure 3. Power Dissipation Test Circuit and Waveform
GENERATOR
10%
PULSE
20 ns
t PLH
t TLH
C L
V in
V DD
V SS
V OH
V OL
10%
90%
20 ns
Q OUTPUTS
V DD
DIS
INH
D1
D2
D3
D4
D5
D6
I D
DISABLE
50%
Figure 5. 3–State AC Test Circuit and Waveforms
Q1
Q2
Q3
Q4
Q5
Q6
C L
20 ns
t PHZ
t PLZ
C L
GENERATOR
20 ns
V DD
V SS
PULSE
C L
V DD
S4
S3
(t PHZ , t PLZ , t PZH , t PZL )
t PHZ
t PZH
t PLZ
t PZL
Test
50%
C L
Switch Positions for 3–State Test
C L
50%
DUTY
CYCLE
90%
10%
C L
Closed
Closed
Open
Open
t PZH
t PZL
S1
90%
DISABLE
INHIBIT
D1
D2
D3
D4
D5
D6
16
10%
Closed
Closed
Open
Open
8
S2
10%
V SS
V DD
20 ns
Q1
Q2
Q3
Q4
Q5
Q6
90%
Closed
Closed
Open
Open
C L
S3
V OH
V OL
V DD
V SS
0.5 V @ V DD = 5 V,
10 V @ V DD = 15 V
10 V, AND 15 V
2 V @ V DD = 5 V
6 V @ V DD = 10 V
Closed
Closed
1 k
MC14502B
Open
Open
S4
V DD
S1
S2
323