參數(shù)資料
型號: M74HC161C1R
廠商: 意法半導(dǎo)體
元件分類: 通用總線功能
英文描述: SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
中文描述: 同步預(yù)置4位計數(shù)器
文件頁數(shù): 10/16頁
文件大小: 331K
代理商: M74HC161C1R
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.
-55 to 125
o
C
54HC
Min.
Max.
0
0
0
50
10
9
10
Max.
0
0
0
65
13
11
10
Max.
0
0
0
75
15
13
10
t
h
Minimum Hold
Time
(A, B - CK)
2.0
4.5
6.0
2.0
4.5
6.0
ns
t
REM
Minimum
Removal Time
18
4
3
5
50
ns
C
IN
Input Capacitance
Power Dissipation
Capacitance
pF
C
PD
(*)
pF
(*) C
PD
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
SWITCHING CHARACTERISTICS TEST WAVEFORM
COUNT MODE
CLEARMODE (HC160/161)
PRESET MODE
CLEARMODE (HC162/163)
M54/M74HC160/161/162/163
10/16
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