Datasheet

5
Prerequisite for Switching Specifications
PARAMETER SYMBOL V
CC
(V)
25
o
C -40
o
C TO 85
o
C -55
o
C TO 125
o
C
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX
Setup Time Dn to LD t
SU
260- -75- -90- -ns
4.5 12 - - 15 - - 18 - - ns
610- -13- -15- -ns
Hold Time Dn to LD t
H
230- -40- -45- -ns
4.5 6 - - 8 - - 9 - - ns
65--7- -8--ns
Latch Disable Pulse
Width
t
W
250- -65- -75- -ns
4.5 10 - - 13 - - 15 - - ns
6 9 - - 11 - - 13 - - ns
Switching Specifications 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
Propagation Delay,
Dn to Output
t
PLH
, t
PHL
C
L
= 50pF 2 - - 340 - 425 - 510 ns
4.5 - - 68 - 85 - 102 ns
6 - - 58 - 72 - 87 ns
C
L
= 15pF 5 - 28 - ----ns
Propagation Delay,
LD to Output
t
PLH
, t
PHL
C
L
= 50pF 2 - - 370 - 465 - 555 ns
4.5 - - 74 - 93 - 111 ns
6 - - 63 - 79 - 94 ns
C
L
= 15pF 5 - 31 - ----ns
Propagation Delay,
BI to Output
t
PLH
, t
PHL
C
L
= 50pF 2 - - 265 - 330 - 400 ns
4.5 - - 53 - 66 - 80 ns
6 - - 45 - 56 - 68 ns
C
L
= 15pF 5 - 22 - ----ns
Propagation Delay,
PH to Output
t
PLH
, t
PHL
C
L
= 50pF 2 - - 200 - 250 - 300 ns
4.5 - - 40 - 50 - 60 ns
6 - - 34 - 43 - 51 ns
C
L
= 15pF 5 - 17 - ----ns
Transition Time t
THL
, t
TLH
C
L
= 50pF 2 - - 250 - 315 - 375 ns
4.5 - - 50 - 63 - 75 ns
6 - - 43 - 54 - 64 ns
Input Capacitance C
I
- - - - 10 - 10 - 10 pF
Power Dissipation Capacitance
(Notes 3, 4)
C
PD
- 5-52-----pF
NOTES:
3. C
PD
is used to determine the dynamic power consumption, per package.
4. P
D
=C
PD
V
CC
2
f
i
+ Σ C
L
V
CC
2
f
o
where f
i
= input frequency, f
o
= output frequency, C
L
= output load capacitance, V
CC
= supply voltage.
CD74HC4543