1/10
March 2002
s
5V TOLERANT INPUTS
s
HIGH SPEED: t
PD
= 4.2ns (MAX.) at V
CC
= 3V
s
LOW POWER DISSIPATION:
I
CC
= 1
A (MAX.) at T
A
= 25C
s
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
s
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 1.65V to 5.5V
(1.2V Data Retention)
s
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74LX1G05 is a low voltage CMOS SINGLE
INVERTER (OPEN DRAIN) fabricated with
sub-micron silicon gate and double-layer metal
wiring C
2
MOS technology.
The internal circuit is composed of 3 stages
including buffer output, which provide high noise
immunity and stable output.
This device can also be used as a led driver in any
other application requiring current sink.
Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage. This device can be
used to interface 5V to 3V.
All inputs and outputs are equipped with
protection circuits against static discharge.
74LX1G05
SINGLE INVERTER OPEN DRAIN
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
T & R
SOT23-5L
74LX1G05STR
SOT323-5L
74LX1G05CTR
SOT323-5L
SOT23-5L
74LX1G05
2/10
INPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
Z: High Impedance
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
1) I
O
absolute maximum rating must be observed
2) V
O
< GND, V
O
> V
CC
PIN No
SYMBOL
NAME AND FUNCTION
1
NC
Not Connected
2
1A
Data Input
4
1Y
Data Output
3
GND
Ground (0V)
5
V
CC
Positive Supply Voltage
A
Y
L
Z
H
L
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
-0.5 to +7.0
V
V
I
DC Input Voltage
-0.5 to +7.0
V
V
O
DC Output Voltage (V
CC
= 0V)
-0.5 to +7.0
V
V
O
DC Output Voltage (High or Low State) (note 1)
-0.5 to V
CC
+ 0.5
V
I
IK
DC Input Diode Current
- 50
mA
I
OK
DC Output Diode Current (note 2)
- 50
mA
I
O
DC Output Current
50
mA
I
CC
or I
GND
DC V
CC
or Ground Current per Supply Pin
50
mA
T
stg
Storage Temperature
-65 to +150
C
T
L
Lead Temperature (10 sec)
300
C
74LX1G05
3/10
RECOMMENDED OPERATING CONDITIONS
1) Truth Table guaranteed: 1.2V to 3.6V
2) V
IN
from 0.8V to 2V at V
CC
= 3.0V
DC SPECIFICATIONS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage (note 1)
1.65 to 5.5
V
V
I
Input Voltage
0 to 5.5
V
V
O
Output Voltage (V
CC
= 0V)
0 to 5.5
V
V
O
Output Voltage (High or Low State)
0 to V
CC
V
I
OL
High or Low Level Output Current (V
CC
= 4.5 to 5.5V)
+
32
mA
I
OL
High or Low Level Output Current (V
CC
= 3.0 to 3.6V)
+
24
mA
I
OL
High or Low Level Output Current (V
CC
= 2.7 to 3.0V)
+
12
mA
I
OL
High or Low Level Output Current (V
CC
= 2.3 to 2.7V)
+
8
mA
I
OL
High or Low Level Output Current (V
CC
= 1.65 to 2.3V)
+
4
mA
T
op
Operating Temperqture
-55 to 125
C
dt/dv
Input Rise and Fall Time (note 2)
0 to 10
ns/V
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
-40 to 85 C
-55 to 125 C
Min.
Max.
Min.
Max.
V
IH
High Level Input
Voltage
1.65 to 1.95
0.75V
CC
0.75V
CC
V
2.3 to 2.7
0.7V
CC
0.7V
CC
3.0 to 5.5
0.7V
CC
0.7V
CC
V
IL
Low Level Input
Voltage
1.65 to 1.95
0.25V
CC
0.25V
CC
V
2.3 to 2.7
0.3V
CC
0.3V
CC
3.0 to 5.5
0.3V
CC
0.3V
CC
V
OL
Low Level Output
Voltage
1.65 to 4.5
I
O
=100
A
0.1
0.1
V
1.65
I
O
=4 mA
0.45
0.45
2.3
I
O
=8 mA
0.3
0.3
3.0
I
O
=16 mA
0.4
0.4
I
O
=24 mA
0.55
0.55
4.5
I
O
=32 mA
0.55
0.55
I
OZ
High Impedance
Output Leakage
Current
3.6
V
I
= 0 to 5.5V
10
10
A
I
I
Input Leakage
Current
1.65 to 5.5
V
I
= 0 to 5.5V
10
10
A
I
off
Power Off Leakage
Current
0
V
I
or V
O
= 5.5V
10
10
A
I
CC
Quiescent Supply
Current
1.65 to 5.5
V
I
= V
CC
or GND
10
10
A
3.6
V
I
or V
O
= 3.6 to 5.5V
10
10
74LX1G05
4/10
AC ELECTRICAL CHARACTERISTICS
CAPACITIVE CHARACTERISTICS
1) C
PD
is defined as the value of the IC's internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
C
L
(pF)
R
L
(
)
t
s
= t
r
(ns)
-40 to 85 C
-55 to 125 C
Min.
Max.
Min.
Max.
t
PLZ
Propagation Delay
Time
1.65 to 1.95
30
1000
2.0
2.4
8.3
2.4
8.3
ns
2.3 to 2.7
30
500
2.0
1.0
5.5
1.0
5.5
2.7
50
500
2.5
1.0
5.5
1.0
5.5
3.0 to 3.6
50
500
2.5
1.5
4.2
1.5
4.2
4.5 to 5.5
50
500
2.5
1
3.5
1
3.5
t
PZL
Propagation Delay
Time
1.65 to 1.95
30
1000
2.0
2.4
8.3
2.4
8.3
ns
2.3 to 2.7
30
500
2.0
1.0
5.5
1.0
5.5
2.7
50
500
2.5
1.0
5.5
1.0
5.5
3.0 to 3.6
50
500
2.5
1.5
4.2
1.5
4.2
4.5 to 5.5
50
500
2.5
1
3.5
1
3.5
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
T
A
= 25 C
Min.
Typ.
Max.
C
IN
Input Capacitance
V
IN
= 0 or V
CC
4
pF
C
OUT
Output Capacitance
V
IN
= 0 or V
CC
5
10
pF
C
PD
Power Dissipation Capacitance
(note 1)
1.8
f
IN
= 10MHz
21
pF
2.5
24
3.3
26
74LX1G05
5/10
TEST CIRCUIT
R
T
= Z
OUT
of pulse generator (typically 50
)
TEST CIRCUIT AND WAVEFORM SYMBOL VALUE
WAVEFORM: PROPAGATION DELAY (f=1MHz; 50% duty cycle)
Symbol
V
CC
1.65 to 1.95V
2.3 to 2.7V
2.7 to 5.5V
C
L
30pF/50pF
30pF/50pF
50pF
R
L
= R
1
1000
500
500
V
IH
V
CC
V
CC
V
CC
V
M
V
CC
/2
V
CC
/2
V
CC
/2
t
r
= t
r
<2.0ns
<2.0ns
<2.5ns
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