Datasheet

5
ACT Input Load Table
INPUT UNIT LOAD
Data 0.83
S 1.27
OE 1.27
NOTE: Unit load is ∆I
CC
limit specified in DC Electrical Specifications
Table, e.g., 2.4mA max at 25
o
C.
Switching Specifications Input t
r
, t
f
= 3ns, C
L
= 50pF (Worst Case)
PARAMETER SYMBOL V
CC
(V)
-40
o
C TO 85
o
C -55
o
C TO 125
o
C
UNITSMIN TYP MAX MIN TYP MAX
AC TYPES
Propagation Delay,
In to Y
AC/ACT257
t
PLH
, t
PHL
1.5 - - 106 - - 117 ns
3.3
(Note 9)
3.3 - 11.8 3.3 - 13 ns
5
(Note 10)
2.4 - 8.5 2.3 - 9.3 ns
Propagation Delay,
S to Y
AC/ACT257
t
PLH
, t
PHL
1.5 - - 153 - - 168 ns
3.3 4.8 - 17.1 4.7 - 18.8 ns
5 3.5 - 12.2 3.4 - 13.4 ns
Propagation Delay,
OE to Y
AC/ACT257
t
PLZ
, t
PHZ
,
t
PZL
, t
PZH
1.5 - - 167 - - 184 ns
3.3 5.3 - 18.7 5.2 - 20.6 ns
5 3.8 - 13.4 3.7 - 14.7 ns
Propagation Delay,
In to Y
’AC/CD74ACT258
t
PLH
, t
PHL
1.5 - - 91 - - 100 ns
3.3 2.9 - 10.2 2.8 - 11.2 ns
5 2.1 - 7.3 2 - 8 ns
Propagation Delay,
S to Y
’AC/CD74ACT258
t
PLH
, t
PHL
1.5 - - 153 - - 168 ns
3.3 4.8 - 17.1 4.7 - 18.8 ns
5 3.5 - 12.2 3.4 - 13.4 ns
Propagation Delay,
OE to Y
’AC/CD74ACT258
t
PLZ
, t
PHZ
,
t
PZL
, t
PZH
1.5 - - 167 - - 184 ns
3.3 5.3 - 18.7 5.2 - 20.6 ns
5 3.8 - 13.4 3.7 - 14.7 ns
Three-State Output
Capacitance
C
O
- - -15- -15pF
Input Capacitance C
I
- - -10- -10pF
Power Dissipation Capacitance C
PD
(Note 11)
- - 130 - - 130 - pF
ACT TYPES
Propagation Delay,
In to Y
AC/ACT257
t
PLH
, t
PHL
5
(Note 10)
2.8 - 9.7 2.7 - 10.7 ns
Propagation Delay,
S to Y
AC/ACT257
t
PLH
, t
PHL
5 4 - 14 3.9 - 15.4 ns
CD54/74AC257, CD54/74ACT257, CD74ACT258