74LS68 View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
74LS68 Datasheet PDF : 6 Pages
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SN54/74LS682•SN54/74LS684•SN54/74LS688
AC CHARACTERISTICS (TA = 25°C)
SN54/74LS682
Symbol
Parameter
tPLH
tPHL
Propagation Delay, P to P = Q
tPLH
tPHL
Propagation Delay, Q to P = Q
tPLH
tPHL
Propagation Delay, P to P > Q
tPLH
tPHL
Propagation Delay, Q to P > Q
SN54/74LS684
Symbol
Parameter
tPLH
tPHL
Propagation Delay, P to P = Q
tPLH
tPHL
Propagation Delay, Q to P = Q
tPLH
tPHL
Propagation Delay, P to P > Q
tPLH
tPHL
Propagation Delay, Q to P > Q
SN54/74LS688
Symbol
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
Parameter
Propagation Delay, P to P = Q
Propagation Delay, Q to P = Q
Propagation Delay, G , G1 to P = Q
Limits
Min Typ Max Unit
13
15
25
25
ns
14
15
25
25
ns
20
15
30
30
ns
21
19
30
30
ns
Limits
Min Typ Max Unit
15
17
25
25
ns
16
15
25
25
ns
22
30
17
30
ns
24
20
30
30
ns
Limits
Min Typ Max Unit
12
17
18
23
ns
12
17
18
23
ns
12
13
18
20
ns
Test Conditions
VCC = 5.0 V
CL = 45 pF
RL = 667 Ω
Test Conditions
VCC = 5.0 V
CL = 45 pF
RL = 667 Ω
Test Conditions
VCC = 5.0 V
CL = 45 pF
RL = 667 Ω
FAST AND LS TTL DATA
5-606
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