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N74456N Datasheet(PDF) 3 Page - NXP Semiconductors

Part No. N74456N
Description  Buffers/drivers
Download  12 Pages
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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N74456N Datasheet(HTML) 3 Page - NXP Semiconductors

 
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Philips Semiconductors
Product specification
74F455,* 74F456
Buffers/Drivers
1999 Jan 08
3
* Discontinued part. Please see the Discontinued Products List.
LOGIC SYMBOL – 74F455
D0
D1
D2
D3
D4
D5
D6
D7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
OE0
OE1
PI
ΣE
ΣO
4
5689
10
11
12
23
24
1
2
3
22
21
20
17
16
15
14
13
SF00959
VCC = Pin 7
GND = Pin 18, 19
LOGIC SYMBOL (IEEE/IEC) – 74F455
SF00961
4
6
8
9
3,5,6,7,8
9,10,11,12
1
2
2K
21
20
17
Z6
5
22
10
11
12
15
14
13
16
4
24
23
3
Z5
Z8
Z7
Z9
Z11
Z10
Z12
w1
EN4
P3
3,5,6,7,8
9,10,11,12
[EVEN]
[ODD]
LOGIC SYMBOL – 74F456
D0
D1
D2
D3
D4
D5
D6
D7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
OE0
OE1
PI
ΣE
ΣO
4
5689
10
11
12
23
24
1
2
3
22
21
20
17
16
15
14
13
SF00960
VCC = Pin 7
GND = Pin 18, 19
LOGIC SYMBOL (IEEE/IEC) – 74F456
SF00962
4
6
8
9
3,5,6,7,8
9,10,11,12
1
2
2K
21
20
17
Z6
5
22
10
11
12
15
14
13
16
4
24
23
3
Z5
Z8
Z7
Z9
Z11
Z10
Z12
­1
EN4
P3
3,5,6,7,8
9,10,11,12
[EVEN]
[ODD]
FUNCTION TABLE
INPUTS
OUTPUTS
74F455
74F456
OE0
OE1
Dn
Qn
Qn
L
L
L
H
L
L
L
H
L
H
H
X
X
Z
Z
X
H
X
Z
Z
H = High voltage level
L
= Low voltage level
Z = High impedance “off” state
X = Don’t care
FUNCTION TABLE for PARITY OUTPUTS
INPUTS
OUTPUTS
Number of inputs, High (PI, D0 - D7)
ΣE
ΣO
Even - 0, 2, 4, 6, 8
H
L
Odd - 1, 3, 5, 7, 9
L
H
Any OEn = High
Z
Z
H = High voltage level
L
= Low voltage level
Z = High impedance “off” state
X = Don’t care


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