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74LVT574 Datasheet(PDF) 3 Page - NXP Semiconductors

Part No. 74LVT574
Description  3.3V Octal D-type flip-flop 3-State
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74LVT574 Datasheet(HTML) 3 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74LVT574
3.3V Octal D-type flip-flop (3-State)
1998 Feb 19
3
LOGIC SYMBOL (IEEE/IEC)
EN
C1
1D
SV00033
12
13
14
15
16
17
18
19
9
8
7
6
5
4
3
2
11
1
PIN DESCRIPTION
PIN NUMBER
SYMBOL
FUNCTION
1
OE
Output enable input
(active-low)
2, 3, 4, 5, 6, 7, 8, 9
D0-D7
Data inputs
19, 18, 17, 16, 15,
14, 13, 12
Q0-Q7
Data outputs
11
CP
Clock pulse input (active
rising edge)
10
GND
Ground (0V)
20
VCC
Positive supply voltage
FUNCTION TABLE
INPUTS
INTERNAL
OUTPUTS
OPERATING
OE
CP
Dn
REGISTER
Q0 – Q7
MODE
L
L
l
h
L
H
L
H
Load and read register
L
X
NC
NC
Hold
H
X
X
NC
Z
Disable outputs
H = High voltage level
h
= High voltage level one set-up time prior to the Low-to-High clock transition
L
= Low voltage level
l
= Low voltage level one set-up time prior to the Low-to-High clock transition
NC= No change
X = Don’t care
Z = High impedance “off” state
↑ = Low-to-High clock transition
↑ = not a Low-to-High clock transition
LOGIC DIAGRAM
19
CP Q
D
2
D0
Q0
CP Q
D
3
D1
CP Q
D
4
D2
CP Q
D
5
D3
CP Q
D
6
D4
CP Q
D
7
D5
CP Q
D
8
D6
CP Q
D
9
D7
Q1
18
Q2
17
Q3
16
Q4
15
Q5
14
Q6
13
Q7
12
11
CP
1
OE
SV00043


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