MC74LCX573
LOGIC DIAGRAM
1
OE
11
LE
2
D0
nLE
Q
D
3
D1
nLE
Q
D
4
D2
nLE
Q
D
5
D3
nLE
Q
D
6
D4
nLE
Q
D
7
D5
8
D6
nLE
Q
D
nLE
Q
D
9
D7
nLE
Q
D
19
O0
18
O1
17
O2
16
O3
15
O4
14
O5
13
O6
12
O7
INPUTS
OUTPUTS
OE
LE
Dn
On
OPERATING MODE
L
H
H
L
H
L
H
L
Transparent (Latch Disabled); Read Latch
L
L
h
H
L
L
l
L
Latched (Latch Enabled) Read Latch
L
L
X
NC
Hold; Read Latch
H
L
X
Z
Hold; Disabled Outputs
H
H
H
H
H
L
Z
Z
Transparent (Latch Disabled); Disabled Outputs
H
L
h
H
L
l
Z
Z
Latched (Latch Enabled); Disabled Outputs
H = High Voltage Level; h = High Voltage Level One Setup Time Prior to the Latch Enable High–to–Low Transition;
L = Low Voltage Level; l = Low Voltage Level One Setup Time Prior to the Latch Enable High–to–Low Transition;
NC = No Change, State Prior to the Latch Enable High–to–Low Transition; X = High or Low Voltage Level or Transitions
are Acceptable; Z = High Impedance State; For ICC Reasons DO NOT FLOAT Inputs
MOTOROLA
2
LCX DATA
BR1339 — REV 3