74hct4520 NXP Semiconductors, 74hct4520 Datasheet - Page 5

• Manufacturer Part Number: 74hct4520
• Description: Dual 4-bit Synchronous Binary Counter
• Manufacturer: NXP Semiconductors

Philips Semiconductors
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
Output capability: standard
I
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
December 1990
CC
t
t
t
t
t
t
t
t
f
SYMBOL
PHL
PHL
PHL
THL
W
W
rem
su
max
Dual 4-bit synchronous binary counter
category: MSI
/ t
/ t
/ t
TLH
PLH
PLH
propagation delay
propagation delay
propagation delay
output transition time
clock pulse width
master reset pulse width
removal time
set-up time
maximum clock pulse
r
= t
nCP
nCP
nMR to nQ
HIGH or LOW
HIGH
nMR to nCP
nCP
nCP
frequency
f
= 6 ns; C
PARAMETER
0
1
1
0
to nQ
to nQ
to nCP
to nCP
n
n
n
0
L
0
1
; nCP
;
= 50 pF
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
1
80
16
14
120
24
20
0
0
0
80
16
14
6.0
30
35
min. typ. max. min. max.
77
28
22
77
28
22
44
16
13
19
7
6
22
8
6
39
14
11
14
5
4
19
58
69
28
10
8
25
240
48
41
240
48
41
150
30
26
75
15
13
T
5
100
20
17
150
30
26
0
0
0
100
20
17
4.8
24
28
amb
74HC
40 to 85
( C)
300
60
51
300
60
51
190
38
33
95
19
16
120
24
20
180
36
31
0
0
0
120
24
20
4.0
20
24
min.
40 to 125
360
72
61
360
72
61
225
45
38
110
22
19
max.
.
ns
ns
ns
ns
ns
ns
ns
ns
MHz
UNIT
74HC/HCT4520
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
TEST CONDITIONS
V
(V)
Product specification
CC
Fig.8
Fig.8
Fig.9
Fig.8
Fig.7
Fig.7
Fig.7
Fig.8
Fig.7
WAVEFORMS