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74F259 Datasheet(PDF) 3 Page - NXP Semiconductors

Part # 74F259
Description  Latch
PDF  12 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74F259 Datasheet(HTML) 3 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74F259
Latch
1989 Apr 11
3
LOGIC SYMBOL
VCC = Pin 16
GND = Pin 8
E
MR
14
15
SF00824
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
45
6
7
9
10
11
12
13
3
DA3
1
A0
2
A1
IEC/IEEE SYMBOL
G8
14
13
15
Z10
SF00825
Z9
1
2
3
9, 10D
10m 0R
0
0
7
2
4
5
6
7
9
10
11
12
9, 10D
10m 1R
9, 10D
10m 2R
9, 10D
10m 3R
9, 10D
10m 4R
9, 10D
10m 5R
9, 10D
10m 6R
9, 10D
10m 7R
8M
FUNCTION TABLE
INPUTS
OUTPUTS
OPERATING MODE
MR
E
D
A0
A1
A2
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
OPERATING MODE
L
H
X
X
X
L
L
L
L
L
L
L
L
L
Master Reset
L
L
d
L
L
L
Q=d
L
L
L
L
L
L
L
L
L
d
H
L
L
L
Q=d
L
L
L
L
L
L
L
L
d
L
H
L
L
L
Q=d
L
L
L
L
L
Demultiplex
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Demulti lex
(active-High decoder
hD H)
•
•
•
•
•
•
•
•
•
•
•
•
•
•
when D=H)
•
•
•
•
•
•
•
•
•
•
•
•
•
•
L
L
d
H
H
H
L
L
L
L
L
L
L
Q=d
H
H
X
X
X
X
q0
q1
q2
q3
q4
q5
q6
q7
Store (do nothing)
H
L
d
L
L
L
Q=d
q1
q2
q3
q4
q5
q6
q7
H
L
d
H
L
L
q0
Q=d
q2
q3
q4
q5
q6
q7
H
L
d
L
H
L
q0
q1
Q=d
q3
q4
q5
q6
q7
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Addressable Latch
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
H
L
d
H
H
H
q0
q1
q2
q3
q4
q5
q6
Q=d
H = High voltage level
L
= Low voltage level
X = Don’t care
d
= High or Low data one setup time prior to the Low-to-High Enable transition
q
= Lower case letters indicate the state of the referenced output established during the last cycle in which it was addressed or cleared.



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