參數(shù)資料
型號： 74HC4040
廠商： NXP Semiconductors N.V.
元件分類： 通用總線功能
英文描述： 12-stage binary ripple counter
中文描述： 12位的二進制紋波計數(shù)器
文件頁數(shù)： 11/24頁
文件大?。?/td> 137K
代理商： 74HC4040
74HC_HCT4040_3
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 14 September 2005
11 of 24
Philips Semiconductors
74HC4040; 74HCT4040
12-stage binary ripple counter
12. Dynamic characteristics
Table 9:
GND = 0 V; t
r
= t
f
= 6 ns. For test circuit see
Figure 9
.
Symbol
Parameter
T
amb
= 25
°
C
t
PHL
, t
PLH
propagation delay CP to Q0
Dynamic characteristics for type 74HC4040
Conditions
Min
Typ
Max
Unit
see
Figure 8
V
CC
= 2.0 V; C
L
= 50 pF
V
CC
= 4.5 V; C
L
= 50 pF
V
CC
= 5.0 V; C
L
= 15 pF
V
CC
= 6.0 V; C
L
= 50 pF
see
Figure 8
V
CC
= 2.0 V; C
L
= 50 pF
V
CC
= 4.5 V; C
L
= 50 pF
V
CC
= 5.0 V; C
L
= 15 pF
V
CC
= 6.0 V; C
L
= 50 pF
see
Figure 8
V
CC
=2.0 V; C
L
= 50 pF
V
CC
= 4.5 V; C
L
= 50 pF
V
CC
= 6.0 V; C
L
= 50 pF
see
Figure 8
V
CC
= 2.0 V; C
L
= 50 pF
V
CC
= 4.5 V; C
L
= 50 pF
V
CC
= 6.0 V; C
L
= 50 pF
see
Figure 8
V
CC
= 2.0 V; C
L
= 50 pF
V
CC
= 4.5 V; C
L
= 50 pF
V
CC
= 6.0 V; C
L
= 50 pF
see
Figure 8
V
CC
= 2.0 V; C
L
= 50 pF
V
CC
= 4.5 V; C
L
= 50 pF
V
CC
= 6.0 V; C
L
= 50 pF
see
Figure 8
V
CC
= 2.0 V; C
L
= 50 pF
V
CC
= 4.5 V; C
L
= 50 pF
V
CC
= 6.0 V; C
L
= 50 pF
see
Figure 8
V
CC
= 2.0 V; C
L
= 50 pF
V
CC
= 4.5 V; C
L
= 50 pF
V
CC
= 5.0 V; C
L
= 15 pF
V
CC
= 6.0 V; C
L
= 50 pF
-
-
-
-
47
17
14
14
150
30
-
26
ns
ns
ns
ns
propagation delay Qn to Qn+1
-
-
-
-
28
10
8
8
100
20
-
17
ns
ns
ns
ns
t
PHL
propagation delay MR to Qn
-
-
-
61
22
18
185
37
31
ns
ns
ns
t
THL
, t
TLH
output transition time
-
-
-
19
7
6
75
15
13
ns
ns
ns
t
W
clock pulse width HIGH or LOW
80
16
14
14
5
4
-
-
-
ns
ns
ns
master reset pulse width; HIGH
80
16
14
22
8
6
-
-
-
ns
ns
ns
t
rec
recovery time MR to CP
50
10
9
8
3
2
-
-
-
ns
ns
ns
f
max
maximum operating frequency
6.0
30
-
35
-
27
82
90
98
20
-
-
-
-
-
MHz
MHz
MHz
MHz
pF
C
PD
power dissipation capacitance
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