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M54HC161 数据表(PDF) 10 Page - STMicroelectronics

部件名 M54HC161
功能描述  SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
PDF  16 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M54HC161 数据表(HTML) 10 Page - STMicroelectronics

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AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns)
Symbol
Parameter
Test Conditions
Value
Unit
VCC
(V)
TA =25
oC
54HC and 74HC
-40 to 85
oC
74HC
-55 to 125
oC
54HC
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
th
Minimum Hold
Time
(A, B - CK)
2.0
0
0
0
ns
4.5
0
0
0
6.0
0
0
0
tREM
Minimum
Removal Time
2.0
18
50
65
75
ns
4.5
4
101315
6.0
3
9
11
13
CIN
Input Capacitance
5
10
10
10
pF
CPD (*)
Power Dissipation
Capacitance
50
pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD
•VCC •fIN +ICC
SWITCHING CHARACTERISTICS TEST WAVEFORM
COUNT MODE
CLEAR MODE (HC160/161)
PRESET MODE
CLEAR MODE (HC162/163)
M54/M74HC160/161/162/163
10/16



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