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M54HC161 Fiches technique(PDF) 3 Page - STMicroelectronics

No de pièce M54HC161
Description  SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
PDF  16 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M54HC161 Fiches technique(HTML) 3 Page - STMicroelectronics

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TRUTH TABLE
M54/74HC160/161
M54/74HC162/163
OUTPUTS
FUNCTION
INPUTS
INPUTS
CLR
LD
PE
TE
CK
CLR
LD
PE
TE
CK
QA
QB
QC
QD
L
X
X
X
X
L
X
X
X
LLLL
RESET TO ”0”
H
L
X
X
H
L
X
X
A
B
C
D
PRESET DATA
H
H
X
L
H
H
X
L
NO CHANGE
NO COUNT
H
H
L
X
H
H
L
X
NO CHANGE
NO COUNT
HHHH
HHH
H
COUNT UP
COUNT
H
X
X
X
X
X
X
X
NO CHANGE
NO COUNT
Note:
X
: Don’t Care
A, B, C, D : Logi level of data inputs
Carry
: CARRY = TE
• QA • QB • QC • QD ............ (M54/74HC160/162)
: CARRY = TE
• QA • QB • QC • QD ............ (M54/74HC161/163)
TIMING CHART (HC160/162 : decade counter)
M54/M74HC160/161/162/163
3/16



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