STMICROELECTRONICS 74LX1G126CTR

74LX1G126
SINGLE BUS BUFFER (3-STATE)
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5V TOLERANT INPUTS
HIGH SPEED: tPD = 4.5ns (MAX.) at VCC = 3V
LOW POWER DISSIPATION:
ICC = 1µA (MAX.) at TA = 25°C
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 24mA (MIN) at VCC = 3V
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
OPERATING VOLTAGE RANGE:
VCC(OPR) = 1.65V to 5.5V
(1.2V Data Retention)
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74LX1G126 is a low voltage CMOS SINGLE
BUS BUFFER fabricated with sub-micron silicon
gate and double-layer metal wiring C2MOS
technology.
3-STATE control input G has to be set LOW to
place the output into the high impedance state.
SOT23-5L
SOT323-5L
ORDER CODES
PACKAGE
T&R
SOT23-5L
SOT323-5L
74LX1G126STR
74LX1G126CTR
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.
PIN CONNECTION AND IEC LOGIC SYMBOLS
April 2004
1/12
74LX1G126
INPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN N°
SYMBOL
1
2
4
3
1G
1A
1Y
GND
VCC
5
TRUTH TABLE
NAME AND FUNCTION
A
G
Y
X
L
H
L
H
H
Z
L
H
Output Enable Input
Data Input
Data Output
Ground (0V)
X : Don’t Care
Positive Supply Voltage
Z : High Impedance
ABSOLUTE MAXIMUM RATINGS
Symbol
Value
Unit
Supply Voltage
-0.5 to +7.0
V
VI
DC Input Voltage
-0.5 to +7.0
V
VO
DC Output Voltage (VCC = 0V)
VO
DC Output Voltage (High or Low State) (note 1)
IIK
VCC
Parameter
-0.5 to +7.0
V
-0.5 to VCC + 0.5
V
DC Input Diode Current
- 50
mA
IOK
DC Output Diode Current (note 2)
- 50
mA
IO
DC Output Current
± 50
mA
± 50
mA
-65 to +150
°C
300
°C
ICC or IGND DC VCC or Ground Current per Supply Pin
Storage Temperature
Tstg
TL
Lead Temperature (10 sec)
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
1) IO absolute maximum rating must be observed
2) VO < GND, VO > VCC
2/12
74LX1G126
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Parameter
Supply Voltage (note 1)
Value
Unit
1.65 to 5.5
V
0 to 5.5
V
Output Voltage (VCC = 0V)
0 to 5.5
V
Output Voltage (High or Low State)
0 to VCC
V
VI
Input Voltage
VO
VO
IOH, IOL
High or Low Level Output Current (VCC = 4.5 to 5.5V)
± 32
mA
IOH, IOL
High or Low Level Output Current (VCC = 3.0 to 3.6V)
± 24
mA
IOH, IOL
High or Low Level Output Current (VCC = 2.7 to 3.0V)
± 12
mA
IOH, IOL
High or Low Level Output Current (VCC = 2.3 to 2.7V)
±8
mA
IOH, IOL
High or Low Level Output Current (VCC = 1.65 to 2.3V)
Top
dt/dv
Operating Temperature
Input Rise and Fall Time (note 2)
±4
mA
-55 to 125
°C
0 to 10
ns/V
1) Truth Table guaranteed: 1.2V to 3.6V
2) VIN from 0.8V to 2V at VCC = 3.0V
3/12
74LX1G126
DC SPECIFICATIONS
Test Condition
Symbol
VIH
VIL
VOH
Parameter
Min.
1.65 to 1.95
0.75VCC
0.75VCC
2.3 to 2.7
0.7VCC
0.7VCC
3.0 to 5.5
0.7VCC
Low Level Input
Voltage
1.65 to 1.95
High Level Output
Voltage
Low Level Output
Voltage
Ioff
ICC
4/12
Min.
Unit
Max.
V
0.7VCC
0.25VCC
2.3 to 2.7
0.3VCC
0.3VCC
3.0 to 5.5
0.3VCC
0.3VCC
1.65 to 4.5
IO=-100 µA
VCC-0.1
VCC-0.1
1.65
IO=-4 mA
1.2
1.2
IO=-8 mA
1.9
1.9
IO=-16 mA
2.4
2.4
V
V
IO=-24 mA
2.2
2.2
4.5
IO=-32 mA
3.8
3.8
1.65 to 4.5
IO=100 µA
0.1
0.1
1.65
IO=4 mA
0.45
0.45
IO=8 mA
0.3
0.3
IO=16 mA
0.4
0.4
IO=24 mA
0.55
0.55
4.5
IO=32 mA
0.55
0.55
3.6
VI = 0 to 5.5V
± 10
± 10
µA
1.65 to 5.5
VI = 0 to 5.5V
± 10
± 10
µA
0
VI or VO = 5.5V
10
10
µA
1.65 to 5.5
VI = VCC or GND
10
10
3.6
VI or VO = 3.6 to 5.5V
± 10
± 10
3.0
High Impedance
Output Leakage
Current
Input Leakage
Current
Power Off Leakage
Current
Quiescent Supply
Current
Max.
0.25VCC
2.3
II
-55 to 125 °C
High Level Input
Voltage
3.0
IOZ
-40 to 85 °C
VCC
(V)
2.3
VOL
Value
V
µA
74LX1G126
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)
Test Condition
Symbol
tPLH tPHL
tPLZ tPHZ
tPZL tPZH
Parameter
VCC
(V)
1.65 to 1.95
2.3 to 2.7
3.0 to 3.6
4.5 to 5.5
1.65 to 1.95
2.3 to 2.7
2.7
3.0 to 3.6
4.5 to 5.5
Output Disable Time 1.65 to 1.95
2.3 to 2.7
3.0 to 3.6
4.5 to 5.5
1.65 to 1.95
2.3 to 2.7
2.7
3.0 to 3.6
4.5 to 5.5
Output Enable Time 1.65 to 1.95
2.3 to 2.7
3.0 to 3.6
4.5 to 5.5
1.65 to 1.95
2.3 to 2.7
2.7
3.0 to 3.6
4.5 to 5.5
CL
(pF)
RL
(Ω)
Value
ts = tr
(ns)
Propagation Delay
Time
15
1MΩ
3.0
30
30
50
50
50
1000
500
500
500
500
2.0
2.0
2.5
2.5
2.5
15
1MΩ
3.0
30
30
50
50
50
1000
500
500
500
500
2.0
2.0
2.5
2.5
2.5
15
1MΩ
3.0
30
30
50
50
50
1000
500
500
500
500
2.0
2.0
2.5
2.5
2.5
-40 to 85 °C
-55 to 125 °C
Min.
Max.
Min.
Max.
2
2
1
1
2
2
1
1
1
2
2
1
1
2
2
1
1
1
2
2
1
1
2
2
1
1
1
12.0
7.0
4.7
4.1
8.0
5.5
5.2
4.5
4.0
12.0
7.0
5.5
5.0
9.8
6.0
5.7
5.5
4.2
12.0
7.0
6.0
5.5
9.4
6.6
5.6
5.3
5.0
2
2
1
1
2
2
1
1
1
2
2
1
1
2
2
1
1
1
2
2
1
1
2
2
1
1
1
12.0
7.0
4.7
4.1
8.0
5.5
5.2
4.5
4.0
12.0
7.0
5.5
5.0
9.8
6.0
5.7
5.5
4.2
12.0
7.0
6.0
5.5
9.4
6.6
5.6
5.3
5.0
Unit
ns
ns
ns
CAPACITIVE CHARACTERISTICS
Test Condition
Symbol
CIN
COUT
CPD
Parameter
Value
TA = 25 °C
VCC
(V)
Min.
Typ.
Input Capacitance
VIN = 0 or VCC
4
Output Capacitance
VIN = 0 or VCC
5
fIN = 10MHz
18
18
21
Power Dissipation Capacitance
(note 1)
1.8
2.5
3.3
Unit
Max.
pF
10
pF
pF
1) CPD 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. ICC(opr) = CPD x VCC x fIN + ICC
5/12
74LX1G126
TEST CIRCUIT
RT = ZOUT of pulse generator (typically 50Ω)
TEST CIRCUIT AND WAVEFORM SYMBOL VALUE
VCC
Symbol
1.65 to 1.95V
2.3 to 2.7V
CL
15pF/30pF
15pF/30pF
15pF/50pF
RL=R1
1MΩ/1000Ω
1MΩ/500Ω
1MΩ/500Ω
VIH
VCC
VCC
VCC
VM
VCC/2
VCC/2
VCC/2
tr = tr
<2.0ns
<2.0ns
<2.5ns
WAVEFORM 1: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
6/12
2.7 to 5.5V
74LX1G126
WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
7/12
74LX1G126
SOT23-5L MECHANICAL DATA
mm.
mils
DIM.
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
0.90
1.45
35.4
57.1
A1
0.00
0.10
0.0
3.9
A2
0.90
1.30
35.4
51.2
b
0.35
0.50
13.7
19.7
C
0.09
0.20
3.5
7.8
D
2.80
3.00
110.2
118.1
E
1.50
1.75
59.0
68.8
e
0.95
37.4
H
2.60
3.00
102.3
118.1
L
0.10
0.60
3.9
23.6
.
7049676C
8/12
74LX1G126
SOT323-5L MECHANICAL DATA
mm.
mils
DIM.
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
0.80
1.10
31.5
43.3
A1
0.00
0.10
0.0
3.9
A2
0.80
1.00
31.5
39.4
b
0.15
0.30
5.9
11.8
C
0.10
0.18
3.9
7.1
D
1.80
2.20
70.9
86.6
E
1.80
2.40
70.9
94.5
E1
1.15
1.35
45.3
53.1
e
0 .65
25.6
e1
1.3
51.2
L
0.10
0.30
3.9
11.8
9/12
74LX1G126
Tape & Reel SOT23-xL MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
A
MIN.
TYP.
180
13.0
13.2
MAX.
7.086
C
12.8
D
20.2
0.795
N
60
2.362
T
10/12
MAX.
0.504
0.512
14.4
0.519
0.567
Ao
3.13
3.23
3.33
0.123
0.127
0.131
Bo
3.07
3.17
3.27
0.120
0.124
0.128
Ko
1.27
1.37
1.47
0.050
0.054
0.0.58
Po
3.9
4.0
4.1
0.153
0.157
0.161
P
3.9
4.0
4.1
0.153
0.157
0.161
74LX1G126
Tape & Reel SOT323-xL MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
175
180
185
6.889
7.086
7.283
C
12.8
13
13.2
0.504
0.512
0.519
D
20.2
N
59.5
0.795
60
T
60.5
2.362
14.4
0.567
Ao
2.25
0.088
Bo
2.7
0.106
Ko
1.2
0.047
Po
3.9
4
4.1
0.153
0.157
0.161
P
3.8
4
4.2
0.149
0.157
0.165
11/12
74LX1G126
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its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
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