MC14557BF(2000) 데이터 시트보기 (PDF) - ON Semiconductor
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MC14557BF Datasheet PDF : 8 Pages
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MC14557B
PIN ASSIGNMENT
L2 1
L1 2
16 VDD
15 L4
RESET 3
14 L8
CLOCK 4
CE 5
13 L16
12 L32
B6
11 Q
A7
10 Q
VSS 8
9 A/B SEL
BLOCK DIAGRAM
3
RESET
4
CLOCK
5
CE
6
B
Q
10
7
A
9
A/B SELECT
2
L1
1
L2
15
L4
Q
11
14
L8
13
L16
12
L32
VDD = PIN 16
VSS = PIN 8
TRUTH TABLE
Inputs
Output
Rst A/B Clock CE
Q
0
0
0
1
0
0
0
1
1
X
0
B
0
A
1
B
1
A
X
X
0
Q is the output of the first selected shift
register stage.
X = Don’t Care
LENGTH SELECT TRUTH TABLE
L32 L16 L8 L4 L2 L1 Register Length
000000
000001
000010
000011
000100
000101
100000
100001
111100
111111
111110
111101
1 Bit
2 Bits
3 Bits
4 Bits
5 Bits
6 Bits
33 Bits
34 Bits
61 Bits
62 Bits
63 Bits
64 Bits
NOTE: Length equals the sum of the binary length control
subscripts plus one.
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