Datasheet

4
Prerequisite For Switching Function
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 MAX MIN MAX MIN MAX
Clock Frequency f
MAX
- 26-5-4-MHz
4.5 30 - 25 - 20 - MHz
6 35 - 29 - 23 - MHz
MR Pulse Width t
w
- 2 80 - 100 - 120 - ns
4.5 16 - 20 - 24 - ns
614-17-20-ns
Clock Pulse Width t
w
- 2 80 - 100 - 120 - ns
4.5 16 - 20 - 24 - ns
614-17-20-ns
Set-up Time
J, K, PE to Clock
t
SU
- 2 100 - 125 - 150 - ns
4.5 20 - 25 - 30 - ns
617-21-26-ns
Hold Time
J, K, PE to Clock
t
H
- 23-3-3-ns
4.53-3-3-ns
65-3-3-ns
Removal Time,
MR to Clock
t
REM
- 2 80 - 100 - 120 - ns
4.5 16 - 20 - 24 - ns
614-17-20-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
UNITSTYP MAX MAX MAX
HC TYPES
Propagation Delay, CP to
Output
t
PLH
, t
PHL
C
L
= 50pF 2 - 175 220 265 ns
4.5 - 35 44 53 ns
6 - 30 37 45 ns
Propagation Delay,
MR toOutput
t
PLH
, t
PHL
C
L
= 50pF 2 - 150 190 225 ns
4.5 - 30 38 45 ns
6 - 26 33 38 ns
Output Transition Times
(Figure 1)
t
TLH
, t
THL
C
L
= 50pF 2 - 75 95 110 ns
4.5 - 15 19 22 ns
6 - 13 16 19 ns
Input Capacitance C
IN
---1010 10pF
CP to Q
n
Propagation Delay t
PLH
, t
PHL
C
L
= 15pF 5 14 - - - ns
MR to Q
n
t
PHL
C
L
= 15pF 5 13 - - - ns
Maximum Clock Frequency f
MAX
C
L
= 15pF 5 50 - - - MHz
Power Dissipation
Capacitance (Notes 2, 3)
C
PD
C
L
= 15pF 45 - - - pF
NOTES:
2. C
PD
is used to determine the dynamic power consumption, per flip-flop.
3. P
D
=V
CC
2
f
i
+ ∑ (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.
CD54HC195, CD74HC195