MM54HCT640 Datasheet, PDF (3/4 Pages) National Semiconductor (TI) – Inverting Octal TRI-STATE Transceiver

AC Electrical Characteristics MM54HCT640 MM74HCT640
V_CCe5 0V g 10% t_ret_fe6 ns (unless otherwise specified)
Symbol
Parameter
Conditions
T_Ae25 C
Typ
74HCT
54HCT
T_Aeb40 to 85 C T_Aeb55 to 125 C
Guaranteed Limits
t_PHL t_PLH Maximum Output
C_Le50 pF
17 23
29
34
Propagation Delay
C_Le150 pF
24 30
38
45
t_PZH t_PZL Maximum Output
R_Le1kX C_Le50 pF 23 30
38
45
Enable Time
t_PHZ t_PLZ Maximum Output
R_Le1kX
21 30
38
45
Disable Time
C_Le50 pF
t_THL t_TLH Maximum Output
C_Le50 pF
8
12
15
18
Rise and Fall Time
C_IN
Maximum Input
Capacitance
10 15
15
15
C_OUT
Maximum Output
Input Capacitance
20 25
25
25
C_PD
Power Dissipation
(per output) GeV_CC
7
Capacitance (Note 5)
GeGND 100
Units
ns
ns
ns
ns
ns
pF
pF
pF
pF
AC Electrical Characteristics MM54HCT643 MM74HCT643
V_CCe5 0V t_ret_fe6 ns T_Ae25 C (unless otherwise specified)
Symbol
Parameter
Conditions
Typ
Guaranteed
Limits
t_PHL t_PLH Maximum Output
C_Le45 pF
16
20
Propagation Delay
t_PZL t_PZH Maximum Output
C_Le45 pF
29
40
Enable Time
R_Le1 kX
t_PLZ t_PHZ Maximum Output
C_Le5 pF
20
25
Disable Time
R_Le1 kX
Units
ns
ns
ns
AC Electrical Characteristics MM54HCT643 MM74HCT643
V_CCe5 0V g 10% t_ret_fe6 ns (unless otherwise specified)
Symbol
Parameter
Conditions
T_Ae25 C
Typ
74HCT
54HCT
T_Aeb40 to 85 C T_Aeb55 to 125 C
Guaranteed Limits
t_PHL t_PLH Maximum Output
C_Le50 pF
17 23
29
34
Propagation Delay
C_Le150 pF
24 30
38
45
t_PZH t_PZL Maximum Output
R_Le1 kX C_Le50 pF 23 30
38
45
Enable Time
t_PHZ t_PLZ Maximum Output
R_Le1 kX
21 30
38
45
Disable Time
C_Le50 pF
t_THL t_TLH Maximum Output
C_Le50 pF
8
12
15
18
Rise and Fall Time
C_IN
Maximum Input
Capacitance
10 15
15
15
C_OUT
Maximum Output
Input Capacitance
20 25
25
25
C_PD
Power Dissipation
(per output) GeV_CC
7
Capacitance (Note 5)
GeGND 100
Note 5 C_PD determines the no load power consumption P_DeC_PDV_CC2f aI_CCV_CC The no load dynamic current consumption I_SeC_PDV_CC aI_CC
Units
ns
ns
ns
ns
ns
ns
pF
pF
pF
pF
3