74V1G126
SINGLE BUS BUFFER (3-STATE)
■ HIGH SPEED: t
■ LOW POWER DISSIPATION:
= 3.4ns (TYP.) at VCC=5V
PD
ICC=1µA(MAX.) at TA=25°C
■ HIGH NOISE IMMUNITY:
V
NIH=VNIL
■ POWER DOWNPROTECTION ON INPUTS
■ SYMMETRICAL OUTPUT IMPEDANCE:
= 28% VCC(MIN.)
|IOH|=IOL= 8mA (MIN) at VCC= 4.5V
■ BALANCED PROPAGATION DELAYS:
t
≅ t
PLH
PHL
■ OPERATING VOLTAGE RANGE:
VCC(OPR) = 2V to 5.5V
■ IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74V1G126 is an advancedhigh-speedCMOS
SINGLE BUS BUFFER fabricated withsub-micron
silicon gate and double-layer metal wiring C2MOS
technology.
3-STATE control input 1G has to be set LOW to
place the output into the high impedance state.
SOT323-5LSOT23-5L
ORDER CODES
PACKAGE T & R
SOT23-5L 74V1G126STR
SOT323-5L 74V1G126CTR
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.
PIN CONNECTION AND IEC LOGIC SYMBOLS
1/10July 2001
74V1G126
INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No SYMBOL NAME AND FUNCTION
1 1G Output Enable Input
2 1A Data Input
4 1Y Data Output
3 GND Ground (0V)
5
TRUTH TABLE
AGY
XLZ
LHL
HHH
X : Don’tCare
Z : High Impedance
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
V
I
I
OK
I
or I
I
CC
T
T
Absolute Maximum Ratings are thosevalues beyond which damage to thedevice may occur. Functional operation under these conditions is
not implied.
Supply Voltage
CC
DC Input Voltage
I
DC Output Voltage -0.5 to VCC+ 0.5
O
DC Input Diode Current
IK
DC Output Diode Current
DC Output Current
O
DC VCCor Ground Current
GND
Storage Temperature
stg
Lead Temperature (10 sec)
L
V
CC
Positive Supply Voltage
-0.5 to +7.0 V
-0.5 to +7.0 V
-20 mA
± 20 mA
± 25 mA
± 50 mA
-65 to +150 °C
260 °C
V
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Value Unit
V
V
V
T
dt/dv
1) VINfrom 30% to 70% of V
2/10
Supply Voltage
CC
Input Voltage
I
Output Voltage 0 to V
O
Operating Temperature
op
(V
CC
CC
= 3.3 ± 0.3V)
= 5.0 ± 0.5V)
Input Rise and Fall Time (note 1) (V
CC
2 to 5.5 V
0 to 5.5 V
CC
-55 to 125 °C
0 to 100
0to20
V
ns/V
ns/V
DC SPECIFICATIONS
Symbol Parameter
V
V
V
V
I
I
High Level Input
IH
Voltage
Low Level Input
IL
Voltage
High Level Output
OH
Voltage
Low Level Output
OL
Voltage
High Impedance
OZ
Output Leakage
Current
I
Input Leakage
I
Current
Quiescent Supply
CC
Current
Test Condition Value
V
(V)
CC
T
A
Min. Typ. Max. Min. Max. Min. Max.
-40 to 85°C -55 to 125°C
=25°C
2.0 1.5 1.5 1.5
3.0 to
5.5
0.7V
CC
0.7V
CC
0.7V
CC
2.0 0.5 0.5 0.5
3.0 to
5.5
2.0
3.0
4.5
3.0
4.5
2.0
3.0
4.5
3.0
4.5
5.5
0to
5.5
5.5
IO=-50 µA
=-50 µA
I
O
I
=-50 µA
O
=-4mA
I
O
=-8mA
I
O
I
=50 µA
O
=50 µA
I
O
I
=50 µA
O
=4 mA
I
O
I
=8 mA
O
I=VIH
orV
IL
V
VO=VCCor GND
V
= 5.5V or GND
I
V
I=VCC
or GND
1.9 2.0 1.9 1.9
2.9 3.0 2.9 2.9
4.4 4.5 4.4 4.4
2.58 2.48 2.4
3.94 3.8 3.7
0.3V
CC
0.3V
CC
0.0 0.1 0.1 0.1
0.0 0.1 0.1 0.1
0.0 0.1 0.1 0.1
0.36 0.44 0.55
0.36 0.44 0.55
±0.25 ± 2.5 ± 5 µA
± 0.1 ± 1 ± 1 µA
11020µA
74V1G126
Unit
V
CC
V
V
V
0.3V
AC ELECTRICAL CHARACTERISTICS (Input tr=tf= 3ns)
Test Condition Value
Symbol Parameter
t
PLH
t
PHL
t
t
PHZ
t
t
PZH
(*) Voltage range is 3.3V ± 0.3V
(**) Voltage range is 5.0V ± 0.5V
Propagation Delay
Time
Output Disable
PLZ
Time
Output Enable
PZL
Time
3.3
3.3
5.0
5.0
3.3
3.3
5.0
5.0
3.3
3.3
5.0
5.0
C
V
CC
(V)
L
(pF)
(*)
15 4.7 7.5 1.0 8.5 1.0 9.5
(*)
50 5.2 8.0 1.0 9.5 1.0 10.5
(**)
15 3.4 5.5 1.0 6.5 1.0 7.5
(**)
50 3.7 6.5 1.0 7.5 1.0 8.5
(*)
15 4.4 8.0 1.0 9.0 1.0 10.0
(*)
50 4.8 11.5 1.0 12.5 1.0 13.5
(**)
15 3.0 5.0 1.0 6.0 1.0 7.0
(**)
50 3.2 7.0 1.0 8.0 1.0 9.0
(*)
15 4.8 7.6 1.0 9.5 1.0 10.5
(*)
50 5.3 8.5 1.0 10.0 1.0 11.0
(**)
15 3.6 5.9 1.0 7.0 1.0 8.0
(**)
50 3.9 6.5 1.0 7.5 1.0 8.5
Min. Typ. Max. Min. Max. Min. Max.
T
A
=25°C
-40 to 85°C -55 to 125°C
Unit
ns
ns
ns
3/10
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