Philips Semiconductors
Product specification
Programmable divide-by-n counter
DC CHARACTERISTIC FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
I
CC
category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
T
amb
(°C)
74HC
SYMBOL PARAMETER
+25
−40
to
+85
−40
to
+125
74HC/HCT4059
TEST CONDITIONS
UNIT
V
CC
(V)
2.0
4.5
6.0
ns
2.0
4.5
6.0
ns
2.0
4.5
6.0
ns
2.0
4.5
6.0
ns
2.0
4.5
6.0
MHz
2.0
4.5
6.0
Fig.7
Fig.9; note 1
Fig.7
Fig.7
Fig.8
WAVEFORMS
min. typ. max. min. max. min. max.
t
PHL
/ t
PLH
propagation delay
CP to Q
58
21
17
t
PHL
/ t
PLH
propagation delay
LE to Q
50
18
14
t
THL
/ t
TLH
output transition time
19
7
6
t
W
clock pulse width
CP
90
18
15
t
rem
removal time
K
b
, K
c
to CP
maximum clock pulse
frequency
75
15
13
f
max
4.2
21
25
Note
1. From master preset mode to any other mode.
7
6
5
19
7
6
12
36
43
200
40
34
175
35
30
75
15
13
115
23
90
95
19
16
3.4
17
20
250
50
43
220
44
37
95
19
16
135
27
23
110
22
19
2.8
14
17
300
60
51
265
53
45
110
22
19
ns
Fig.7
1998 Jul 08
9
PHILIPS [ NXP SEMICONDUCTORS ]
