74F373 Просмотр технического описания (PDF) - NXP Semiconductors.
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Компоненты Описание
производитель
74F373
NXP Semiconductors.
74F373 Datasheet PDF : 13 Pages
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Philips Semiconductors
Latch/flip-flop
Product data
74F373/74F374
LOGIC DIAGRAM FOR 74F373
D0
D1
D2
D3
D4
D5
D6
D7
3
4
7
8
13
14
17
18
E 11
D
EQ
D
EQ
D
EQ
D
EQ
D
EQ
D
EQ
D
EQ
D
EQ
1
OE
VCC = Pin 20
GND = Pin 10
2
5
6
9
12
15
16
19
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
SF00256
LOGIC DIAGRAM FOR 74F374
D0
D1
D2
D3
D4
D5
D6
D7
3
4
7
8
13
14
17
18
CP 11
D
CP Q
D
CP Q
D
CP Q
D
CP Q
D
CP Q
D
CP Q
D
CP Q
D
CP Q
1
OE
VCC = Pin 20
GND = Pin 10
2
5
6
9
12
15
16
19
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
SF00257
FUNCTION TABLE FOR 74F373
INPUTS
OE
E
Dn
INTERNAL
REGISTER
OUTPUTS
Q0 - Q7
OPERATING MODE
L
H
L
L
L
H
H
H
L
Enable and read register
H
L
↓
l
L
L
↓
h
H
L
Latch and read register
H
L
L
X
NC
NC
Hold
H
L
X
NC
H
H
Dn
Dn
Z
Disable outputs
Z
NOTES:
H = High-voltage level
h = HIGH state must be present one set-up time before the HIGH-to-LOW enable transition
L = Low-voltage level
l = LOW state must be present one set-up time before the HIGH-to-LOW enable transition
NC= No change
X = Don’t care
Z = High impedance “off” state
↓ = HIGH-to-LOW enable transition
2002 Nov 20
4
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