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
HC TYPES
Maximum Clock
Frequency
f
MAX
2 6 - - 5 - - 4 - - MHz
4.5 30 - - 25 - - 20 - - MHz
6 35 - - 29 - - 23 - - MHz
MR Pulse Width t
W
250- -65- -75- -ns
4.5 10 - - 13 - - 15 - - ns
6 9 - - 11 - - 13 - - ns
Clock Pulse Width t
W
2 80 - - 100 - - 120 - - ns
4.5 16 - - 20 - - 24 - - ns
614- -17- -20- -ns
Setup Time
DS0, DS7, I/On to Clock
t
SU
2 100 - - 125 - - 150 - - ns
4.5 20 - - 25 - - 30 - - ns
617- -21- -26- -ns
Hold Time DS0, DS7,
I/On, S0, S1 to Clock
t
H
20--0--0--ns
4.5 0 - - 0 - - 0 - - ns
60--0--0--ns
Recovery Time
MR to Clock
t
REC
25--5--5--ns
4.5 5 - - 5 - - 5 - - ns
65--5--5--ns
Setup Time
S1, S0 to Clock
t
SU
2 120 - - 150 - - 180 - - ns
4.5 24 - - 30 - - 36 - - ns
620- -26- -31- -ns
HCT TYPES
Maximum Clock
Frequency
f
MAX
4.5 25 - - 20 - - 16 - - MHz
MR Pulse Width t
W
4.5 15 - - 19 - - 22 - - ns
Clock Pulse Width t
W
4.5 20 - - 25 - - 30 - - ns
Setup Time DS0, DS7,
I/On, S0, S1 to Clock
t
SU
4.5 20 - - 25 - - 30 - - ns
Hold Time DS0, DS7,
I/On, S0, S1 to Clock
t
H
4.5 0 - - 0 - - 0 - - ns
Recovery Time MR to
Clock
t
REC
4.5 5 - - 5 - - 5 - - ns
Setup Time S1, S0 to
Clock
t
SU
4.5 27 - - 34 - - 41 - - ns
CD54HC299, CD74HC299, CD54HCT299, CD74HCT299