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)： 14/24頁
文件大小： 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
14 of 24
Philips Semiconductors
74HC4040; 74HCT4040
12-stage binary ripple counter
Table 10:
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 74HCT4040
Conditions
Min
Typ
Max
Unit
see
Figure 8
V
CC
= 4.5 V; C
L
= 50 pF
V
CC
= 5.0 V; C
L
= 15 pF
see
Figure 8
V
CC
= 4.5 V; C
L
= 50 pF
V
CC
= 5.0 V; C
L
= 15 pF
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
see
Figure 8
V
CC
= 4.5 V; C
L
= 50 pF
V
CC
= 5.0 V; C
L
= 15 pF
-
-
19
16
40
-
ns
ns
propagation delay Qn to Qn+1
-
-
-
10
8
23
20
-
45
ns
ns
ns
t
PHL
propagation delay MR to Qn
t
THL
, t
TLH
output transition time
-
7
15
ns
t
W
clock pulse width HIGH or LOW
16
7
-
ns
master reset pulse width; HIGH
16
6
-
ns
t
rec
recovery time MR to CP
10
2
-
ns
f
max
maximum operating frequency
30
-
72
79
20
-
-
-
MHz
MHz
pF
C
PD
power dissipation capacitance
per package
T
amb
=
40
°
C to +85
°
C
t
PHL
, t
PLH
propagation delay CP to Q0
[1]
-
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
-
-
50
ns
propagation delay Qn to Qn+1
-
-
25
ns
t
PHL
propagation delay MR to Qn
-
-
56
ns
t
THL
, t
TLH
output transition time
-
-
19
ns
t
W
clock pulse width HIGH or LOW
20
-
-
ns
master reset pulse width; HIGH
20
-
-
ns
t
rec
recovery time MR to CP
13
-
-
ns
f
max
maximum operating frequency
24
-
-
MHz
T
amb
=
40
°
C to +125
°
C
t
PHL
, t
PLH
propagation delay CP to Q0
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
;
V
CC
= 4.5 V; C
L
= 50 pF;
see
Figure 8
-
-
60
ns
propagation delay Qn to Qn+1
-
-
30
ns
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