BUS BUFFER. 74V2T126 Datasheet

74V2T126 BUFFER. Datasheet pdf. Equivalent


STMicroelectronics 74V2T126
74V2T126
DUAL BUS BUFFER (3-STATE)
s HIGH SPEED: tPD = 3.8ns (TYP.) at VCC = 5V
s LOW POWER DISSIPATION:
www.DataSheet4U.csomICCOC M=P1AµTAI(BMLAEXW.)IaTtHTATT=L2O5°UCTPUTS:
VIH = 2V (MIN), VIL = 0.8V (MAX)
s POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
s SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 8mA (MIN)
s BALANCED PROPAGATION DELAYS:
tPLH tPHL
s OPERATING VOLTAGE RANGE:
VCC(OPR) = 4.5V to 5.5V
s IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74V2T126 is an advanced high-speed CMOS
DUAL BUS BUFFER fabricated with sub-micron
silicon gate and double-layer metal wiring C2MOS
technology.
3-STATE control input nG has to be set LOW to
place the output into the high impedance state.
SOT23-8L
ORDER CODES
PACKAGE
SOT23-8L
T&R
74V2T126STR
Power down protection is provided on all inputs
and outputs and 0 to 7V can be accepted on
inputs with no regard to the supply voltage. This
device can be used to interface 3V to 5V systems
and it is ideal for portable applications like
personal digital assistant, camcorder and all
battery-powered equipment.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them ESD immunity and transient excess voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
June 2003
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74V2T126 Datasheet
Recommendation 74V2T126 Datasheet
Part 74V2T126
Description DUAL BUS BUFFER
Feature 74V2T126; 74V2T126 DUAL BUS BUFFER (3-STATE) HIGH SPEED: tPD = 3.8ns (TYP.) at VCC = 5V LOW POWER DISSIPATION:.
Manufacture STMicroelectronics
Datasheet
Download 74V2T126 Datasheet




STMicroelectronics 74V2T126
74V2T126
INPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1, 7
2, 5
3, 6
4
8
SYMBOL
1G, 2G
1A, 2A
2Y, 1Y
GND
VCC
NAME AND FUNCTION
Output Enable Inputs
Data Inputs
Data Outputs
Ground (0V)
Positive Supply Voltage
www.DataSheet4U.com
TRUTH TABLE
nA
X
L
H
X: "H" or "L"
Z: High Impedance
nG
L
H
H
nY
Z
L
H
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCC Supply Voltage
-0.5 to +7.0
V
VI DC Input Voltage
-0.5 to +7.0
V
VO DC Output Voltage
-0.5 to VCC + 0.5
V
IIK DC Input Diode Current
20
mA
IOK DC Output Diode Current
20
mA
IO DC Output Current
± 25
mA
ICC or IGND DC VCC or Ground Current
± 50
mA
Tstg Storage Temperature
-65 to +150
°C
TL Lead Temperature (10 sec)
260 °C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
VCC Supply Voltage
VI Input Voltage
VO Output Voltage
Top Operating Temperature
dt/dv Input Rise and Fall Time (note 1) (VCC = 5.0 ± 0.5V)
1) VIN from 0.8V to 2V
Value
4.5 to 5.5
0 to 5.5
0 to VCC
-55 to 125
0 to 20
Unit
V
V
V
°C
ns/V
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STMicroelectronics 74V2T126
74V2T126
DC SPECIFICATION
Test Condition
Value
Symbol
Parameter
VCC
(V)
VIH
VIL
www.DataSheet4U.comVOH
VOL
IOZ
II
IOPD
ICC
+ICC
High Level Input
Voltage
4.5 to
5.5
Low Level Input
Voltage
4.5 to
5.5
High Level Output
Voltage
4.5
4.5
Low Level Output
Voltage
4.5
4.5
High Impedance
Output Leakage
Current
5.5
Input Leakage
Current
0 to
5.5
Power down Output
Leakage Current
0
Quiescent Supply
Current
5.5
Additional Worst
Case Supply
Current
5.5
IO=-50 µA
IO=-8 mA
IO=50 µA
IO=8 mA
VI = VIH or VIL
VO = 5.5 or GND
VI = 5.5V or GND
VO = 5.5
VI = VCC or GND
One Input at 3.4V,
other input at VCC
or GND
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
2.0
2.0 2.0
V
0.8 0.8 0.8
4.4 4.5 4.4 4.4
3.94 3.8 3.7
0.0 0.1 0.1 0.1
0.36 0.44 0.55
V
V
V
±0.25
± 2.5
± 5 µA
± 0.1
0.5
1
1.35
±1
5
10
1.5
± 1 µA
10 µA
20 µA
1.5 mA
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)
Test Condition
Value
Symbol
Parameter
tPLH
tPHL
tPLZ
tPHZ
Propagation Delay
Time
Output Disable
Time
tPZL
tPZH
Output Enable
Time
(*) Voltage range is 5.0V ± 0.5V
VCC CL
(V) (pF)
5.0(*)
5.0(*)
5.0(*)
5.0(*)
5.0(*)
5.0(*)
15
50
15
50
15
50
RL = 1 K
RL = 1 K
RL = 1 K
RL = 1 K
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
3.8 5.5 1.0 6.5 1.0 7.5
4.3 6.5 1.0 7.5 1.0 8.5
3.6 5.0 1.0 6.0 1.0 7.0
ns
5.1 7.0 1.0 8.0 1.0 9.0
3.7 5.9 1.0 7.0 1.0 8.0
4.1 6.5 1.0 7.5 1.0 8.5
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