Datasheet

5
Switching Specifications C
L
= 50pF, Input t
r
, t
f
= 6ns
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
PHL
, t
PLH
C
L
= 50pF
Data to Output 2 - - 110 - 140 - 165 ns
4.5 - - 22 - 28 - 33 ns
C
L
= 15pF 5 - 9 - - - - - ns
C
L
= 50pF 6 - - 19 - 24 - 28 ns
Output Disable to Output t
PHL,
t
PLH
C
L
= 50pF 2 - - 150 - 190 - 225 ns
4.5 - - 30 - 38 - 45 ns
C
L
= 15pF 5 - 12 - - - - - ns
C
L
= 50pF 6 - - 26 - 33 - 38 ns
Output Enable to Output t
PHL,
t
PLH
C
L
= 50pF 2 - - 150 - 190 - 225 ns
4.5 - - 30 - 38 - 45 ns
C
L
= 15pF 5 - 12 - - - - - ns
C
L
= 50pF 6 - - 26 - 33 - 38 ns
Output Transition Time t
THL
, t
TLH
C
L
= 50pF 2 - - 60 - 75 - 90 ns
4.5 - - 12 - 15 - 18 ns
6 - - 10 - 13 - 15 ns
Input Capacitance C
IN
C
L
= 50pF - 10 - 10 - 10 - 10 pF
Three-State Output
Capacitance
C
O
- - - - 20 - 20 - 20 pF
Power Dissipation Capacitance
(Notes 3, 4)
C
PD
-5-53-----pF
HCT TYPES
Propagation Delay
Data to Output t
PHL,
t
PLH
C
L
= 50pF 4.5 - - 26 - 33 - 39 ns
C
L
= 15pF 5 - 10 - - - - - ns
Output Disable to Output t
PHL,
t
PLH
C
L
= 50pF 4.5 - - 30 - 38 - 45 ns
C
L
= 15pF 5 - 12 - - - - - ns
Output Enable to Output t
PHL,
t
PLH
C
L
= 50pF 4.5 - - 32 - 40 - 48 ns
C
L
= 15pF 5 - 13 - - - - - ns
Output Transition Time t
THL
, t
TLH
C
L
= 50pF 4.5 - - 12 - 15 - 18 ns
Input Capacitance C
IN
C
L
= 50pF - 10 - 10 - 10 - 10 pF
Three-State Output
Capacitance
C
O
- - - - 20 - 20 - 20 pF
Power Dissipation Capacitance
(Notes 3, 4)
C
PD
-5-55-----pF
NOTES:
3. C
PD
is used to determine the dynamic power consumption, per channel.
4. P
D
= V
CC
2
f
i
(C
PD
+ C
L
) where f
i
= Input Frequency, C
L
= Output Load Capacitance, V
CC
= Supply Voltage.
CD54HC245, CD74HC245, CD54HCT245, CD74HCT245CD54HC245, CD74HC245, CD54HCT245, CD74HCT245