參數(shù)資料
型號: 74192
廠商: 意法半導(dǎo)體
元件分類: 通用總線功能
英文描述: SYNCHRONOUS UP/DOWN DECADE(,BINARY) COUNTER
中文描述: 同步向上/向下十年(,二進制)計數(shù)器
文件頁數(shù): 9/15頁
文件大小: 312K
代理商: 74192
AC ELECTRICAL CHARACTERISTICS
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Symbol
Parameter
Test Conditions
Value
-40 to 85
o
C
74HC
Min.
Unit
V
CC
(V)
T
A
= 25
o
C
54HC and 74HC
Min.
Typ.
34
-55 to 125
o
C
54HC
Min.
Max.
100
20
17
75
15
13
100
20
17
75
15
13
0
0
0
50
10
9
50
10
9
10
Max.
125
25
21
95
19
16
125
25
21
95
19
16
0
0
0
65
13
11
65
13
11
10
Max.
150
30
26
110
22
19
150
30
26
110
22
19
0
0
0
75
15
13
75
15
13
10
t
W(H)
t
W(L)
Minimum Pulse
Width (COUNT
UP/DOWN)
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
ns
9
7
t
W(L)
Minimum Pulse
Width
(LOAD)
34
9
7
40
12
10
30
9
7
ns
t
W(H)
Minimum Pulse
Width
(CLEAR)
ns
t
s
Minimum Set-up
Time
(DATA - LOAD)
ns
t
h
Minimum Hold
Time
ns
t
REM
Minimum
Removal Time
(LOAD)
6
2
2
ns
t
REM
Minimum
Removal Time
(CLEAR)
14
4
3
5
68
67
ns
C
IN
Input Capacitance
Power Dissipation
Capacitance
pF
C
PD
(*)
for HC192
for HC193
pF
(*) C
isdefined asthe value ofthe IC’sinternal equivalent capactance which is calculated from the operating current consumption without load.
(Refer to Test Circuit).Average operting current can be obtained by thefollowingequation. I
CC
(opr) = C
PD
V
CC
f
IN
+ I
CC
M54/M74HC192/193
9/15
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