參數(shù)資料
型號(hào)： MM74C90N
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 通用總線功能
英文描述： 4-Bit Decade, Binary Counter
中文描述： CMOS SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP DECADE COUNTER, PDIP14
封裝： PLASTIC, DIP-14
文件頁(yè)數(shù)： 3/6頁(yè)
文件大?。?/td> 124K
代理商： MM74C90N
AC Electrical Characteristics
*
T
A
e
25
§
C, C
L
e
50 pF, unless otherwise specified (Continued)
Symbol
Parameter
Conditions
V
CC
e
5V
V
CC
e
10
V
CC
e
5V
V
CC
e
10V
V
CC
e
5V
V
CC
e
10V
V
CC
e
5V
V
CC
e
10V
V
CC
e
5V
V
CC
e
10V
Min
Typ
Max
Units
t
pd0
, t
pd1
Propagation Delay Time
from A
IN
to Q
C
(MM54C93/MM74C93)
Propagation Delay Time from
A
IN
to Q
C
(MM54C93/MM74C93)
Propagation Delay Time from
A
IN
to Q
D
(MM54C93/MM74C93)
Propagation Delay Time from
A
IN
to Q
D
(MM54C90/MM74C90)
Propagation Delay Time from
R
01
or R
02
to Q
A
, Q
B
, Q
C
or Q
D
(MM54C93/MM74C93)
500
200
1050
400
ns
ns
t
pd0
, t
pd1
500
200
1000
400
ns
ns
t
pd0
, t
pd1
600
250
1200
500
ns
ns
t
pd0
, t
pd1
450
160
800
300
ns
ns
t
pd0
, t
pd1
150
75
300
150
ns
ns
t
pd0
, t
pd1
Propagation Delay Time from
R
01
or R
02
to Q
A
, Q
B
, Q
C
or Q
D
(MM54C90/MM74C90)
V
CC
e
5V
V
CC
e
10V
200
75
400
150
ns
ns
t
pd0
, t
pd1
Propagation Delay Time from
R
91
or R
92
to Q
A
or Q
D
(MM54C90/MM74C90)
V
CC
e
5V
V
CC
e
10V
250
100
500
200
ns
ns
t
PW
Min. R
01
or R
02
Pulse Width
(MM54C93/MM74C93)
V
CC
e
5V
V
CC
e
10V
V
CC
e
5V
V
CC
e
10V
V
CC
e
5V
V
CC
e
10V
V
CC
e
10V
V
CC
e
10V
V
CC
e
5V
V
CC
e
10V
V
CC
e
5V
V
CC
e
10V
Any Input (Note 2)
600
30
250
125
ns
ns
t
PW
Min. R
01
or R
02
Pulse Width
(MM54C90/MM74C90)
600
300
250
125
ns
ns
t
PW
Min. R
91
or R
92
Pulse Width
(MM54C90/MM74C90)
500
250
200
100
ns
ns
t
r
, t
f
Maximum Clock Rise
and Fall Time
15
5
m
s
m
s
t
W
Minimum Clock Pulse Width
250
100
100
50
ns
ns
f
MAX
Maximum Clock Frequency
2
5
MHz
MHz
C
IN
C
PD
*
AC Parameters are guaranteed by DC correlated testing.
Input Capacitance
5
pF
Power Dissipation Capacitance
Per Package (Note 3)
45
pF
Note 1:
‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed. Except for ‘‘Operating Temperature Range’’,
they are not meant to imply that the devices should be operated at these limits. The table of ‘‘Electrical Characteristics’’ provides conditions for actual device
operation.
Note 2:
Capacitance is guaranteed by periodic testing.
Note 3:
C
PD
determines the no load ac power consumption of any CMOS device. For complete explanation see 54C/74C Family Characteristics application noteD
AN-90.
AC Test Circuits
MM54C90/MM74C90
TL/F/5889–5
Clock rise and fall time t
r
e
t
f
e
20 ns
MM54C93/MM74C93
TL/F/5889–6
Clock rise and fall time t
r
e
t
f
e
20 ns
3
相關(guān)PDF資料
PDF描述
MM54C90J 4-Bit Decade, Binary Counter
MM54C90N 4-Bit Decade, Binary Counter
MM54C93J 4-Bit Decade, Binary Counter
MM54C93N 4-Bit Decade, Binary Counter
MM54C932 Phase Comparator
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