Datasheet

7
Switching Specifications C
L
= 50pF, Input t
r
, t
f
= 6ns, R
X
= 10KΩ, C
X
= 0
PARAMETER SYMBOL
TEST
CONDITIONS V
CC
(V)
25
o
C
-40
o
C TO
85
o
C
-55
o
C TO
125
o
C
UNITSMIN TYP MAX MIN MAX MIN MAX
HC TYPES
Propagation Delay t
PLH
C
L
= 50pF
A, B to Q 2 - - 250 - 315 - 375 ns
4.5 - - 50 - 63 - 75 ns
C
L
= 15pF 5 - 21 - - - - - ns
C
L
= 50pF 6 - - 43 - 54 - 64 ns
A, B to Qt
PHL
C
L
= 50pF 2 - - 250 - 315 - 375 ns
4.5 - - 50 - 63 - 75 ns
C
L
= 15pF 5 - 21 - - - - - ns
C
L
= 50pF 6 - - 43 - 54 - 64 ns
R to Q t
PHL
C
L
= 50pF 2 - - 250 - 315 - 375 ns
4.5 - - 50 - 63 - 75 ns
C
L
= 15pF 5 - 21 - - - - - ns
C
L
= 50pF 6 - - 43 - 54 - 64 ns
R to Qt
PLH
C
L
= 50pF 2 - - 250 - 315 - 375 ns
4.5 - - 50 - 63 - 75 ns
C
L
= 15pF 5 - 21 - - - - - ns
C
L
= 50pF 6 - - 43 - 54 - 64 ns
Output Transition Time t
TLH
, t
THL
C
L
= 50pF 2 - - 75 - 95 - 110 ns
4.5 - - 15 - 19 - 22 ns
6 - - 13 - 16 - 19 ns
Output Pulse Width
R
X
= 10k, C
X
= 0.1µF
τ
C
L
= 50pF 3 0.64 - 0.78 0.612 0.812 0.605 0.819 ms
5 0.63 - 0.77 0.602 0.798 0.595 0.805 ms
Output Pulse Width Match,
Same Package
-- -±1- - - - - %
Power Dissipation Capacitance
(Notes 8, 9)
C
PD
C
L
= 15pF 5 - 136 - - - - - pF
Input Capacitance C
I
C
L
= 50pF - 10 - 10 - 10 - 10 pF
HCT TYPES
Propagation Delay t
PLH
A, B to Q C
L
= 50pF 4.5 - - 55 - 69 - 83 ns
C
L
= 15pF 5 - 23 - - - - - ns
A, B to Qt
PHL
C
L
= 50pF 4.5 - - 55 - 69 - 83 ns
C
L
= 15pF 5 - 23 - - - - - ns
CD54HC4538, CD74HC4538, CD54HCT4538, CD74HCT4538