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HD74LS47 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - BCD-to-Seven-Segment Decoder / Driver - Renesas

भाग संख्या HD74LS47
समारोह BCD-to-Seven-Segment Decoder / Driver
मैन्युफैक्चरर्स Renesas 
लोगो Renesas लोगो 
पूर्व दर्शन
1 Page
		
<?=HD74LS47?> डेटा पत्रक पीडीएफ

HD74LS47 pdf
HD74LS47
Function Table
Decimal or
Inputs
BI/
Outputs
Function LT RBI D C B A RBO a
b
c
d
e
f
Note
g
0 H H L L L L H ON ON ON ON ON ON OFF
1
H X LLLH
H OFF ON ON OFF OFF OFF OFF
2 H X L L H L H ON ON OFF ON ON OFF ON
3 H X L L H H H ON ON ON ON OFF OFF ON
4
H X LHL L
H OFF ON ON OFF OFF ON ON
5 H X L H L H H ON OFF ON ON OFF ON ON
6
H X LHHL
H OFF OFF ON ON ON ON ON
7 H X L H H H H ON ON ON OFF OFF OFF OFF
1
8 H X H L L L H ON ON ON ON ON ON ON
9 H X H L L H H ON ON ON OFF OFF ON ON
10
H X HLHL
H OFF OFF OFF ON ON OFF ON
11
H X HLHH
H OFF OFF ON ON OFF OFF ON
12
H X HHL L
H OFF ON OFF OFF OFF ON ON
13 H X H H L H H ON OFF OFF ON OFF ON ON
14
H X HHHL
H OFF OFF OFF ON ON ON ON
15
H X HHHH
H OFF OFF OFF OFF OFF OFF OFF
BI
X X XXXX
L OFF OFF OFF OFF OFF OFF OFF 2
RBI
H L LLLL
L OFF OFF OFF OFF OFF OFF OFF 3
LT L X X X X X H ON ON ON ON ON ON ON 4
H; high level, L; low level, X, irrelevant
Notes: 1. The blanking input (BI) must be open or held at a high logic level when output functions 0 through 15 are
desired. The ripple-blanking input (RBI) must be open or high if blanking of a decimal zero is not desired.
2. When a low logic level is applied directly to the blanking input (BI), all segment outputs are off regardless of
the level of any other input.
3. When ripple-blanking input (RBI) and inputs A, B, C, and D are a low level with the lamp test input high, all
segment outputs go off and the ripple-blanking output (RBO) goes to a low level (response condition).
4. When a blanking input / ripple blanking output (BI / RBO) is open or held high and a low is applied to the
lamp-test input, all segment outputs are on.
a
f gb
ec
d 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Rev.3.01, May 10, 2006, page 2 of 6

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डाउनलोड[ HD74LS47 Datasheet.PDF ]


शेयर लिंक


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