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74LCX760 Low Voltage Buffer/Line Driver with 5V Tolerant Inputs and Open Drain Outputs
July 2001
Revised March 2005
74LCX760
Low Voltage Buffer/Line Driver
with 5V Tolerant Inputs and Open Drain Outputs
General Description
The LCX760 is the Open Drain version of the LCX244. The
LCX760 contains eight non-inverting buffers with 3-STATE
outputs. The device may be employed as a memory
address driver, clock driver and bus-oriented transmitter/
receiver. The LCX760 is designed for low voltage (2.5V or
3.3V) V
CC
applications with capability of interfacing to a 5V
signal environment.
The LCX760 is fabricated with an advanced CMOS tech-
nology to achieve high speed operation while maintaining
The Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated
at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the Absolute Maximum Ratings. The “Recom-
mended Operating Conditions” table will define the conditions for actual device operation.
Note 3:
I
O
Absolute Maximum Rating must be observed.
Note 4:
Unused inputs or I/Os must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol
V
IH
V
IL
V
OL
Parameter
HIGH Level Input Voltage
LOW Level Input Voltage
LOW Level Output Voltage
I
OL
I
OL
I
OL
I
OL
I
OL
I
I
I
OZ
I
OFF
I
CC
Input Leakage Current
3-STATE Output Leakage
Power-Off Leakage Current
Quiescent Supply Current
Increase in I
CC
per Input
Off State Current
100
P
A
8 mA
12 mA
16 mA
24 mA
Conditions
V
CC
(V)
2.3
2.7
2.7
3.6
2.3
2.7
2.7
3.6
2.3
3.6
2.3
2.7
3.0
3.0
2.3
3.6
2.3
3.6
0
2.3
3.6
2.3
3.6
2.3
3.6
2 - 3.6
T
A
40
q
C to
85
q
C
Max
Units
Min
1.7
2.0
V
0.7
0.8
0.2
0.6
0.4
0.4
0.55
V
V
0
d
V
I
d
5.5V
0
d
V
O
d
5.5V
V
I
V
I
V
IH
V
O
V
IH
or V
IL
5.5V
V
CC
or GND
V
CC
0.6V
5.5
V
I
or V
O
r
5.0
r
5.0
10
10
P
A
P
A
P
A
P
A
P
A
P
A
3.6V
d
V
I
, V
O
d
5.5V (Note 5)
r
10
500
10
'
I
CC
I
OHZ
Note 5:
Outputs disabled or 3-STATE only.
3
www.fairchildsemi.com
74LCX760
AC Electrical Characteristics
T
A
Symbol
Parameter
V
CC
3.3V
r
0.3V
40
q
C to
85
q
C, R
L
500
:
V
CC
C
L
Min
0.5
0.5
0.5
0.5
2.7V
50 pF
Max
9.0
8.0
9.0
8.0
V
CC
C
L
Min
0.5
0.5
0.5
0.5
2.5V
r
0.2
30 pF
Max
10.0
8.4
10.0
8.4
ns
ns
ns
ns
Units
C
L
50 pF
Min
t
PZL
t
PLZ
t
PZL
t
PLZ
t
OSHL
t
OSLH
Propagation Delay
Data to Output
Output Enable Time
OE
n
to Out
Output Disable Time
OE
n
to Out
Output to Output Skew
(Note 6)
0.5
0.5
0.5
0.5
Max
8.0
7.0
8.0
7.0
1.0
1.0
Note 6:
Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The
specification applies to any outputs switching in the same direction, either HIGH-to-LOW (t