U74LVC2G240G-P08-R [UTC]
DUAL BUFFER/DRIVER WITH 3-STATE OUTPUTS; 双缓冲/驱动器，具有三态输出
| 型号： | U74LVC2G240G-P08-R |
| 厂家： | 
Unisonic Technologies |
| 描述： | DUAL BUFFER/DRIVER WITH 3-STATE OUTPUTS |
| 文件： | 总6页 (文件大小：210K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
U74LVC2G240
CMOS IC
DUAL BUFFER/DRIVER WITH
3-STATE OUTPUTS
DESCRIPTION
The U74LVC2G240 is a dual buffer or driver with 3-state
outputs. It is designed for 1.65V to 5.5V operation.
The U74LVC2G240 is composed of two 1-bit buffers/drivers
with separate output-enable (
data passes from A (input) to Y (output). When
outputs are in the high-impedance state.
) inputs. When
is low,
is high, the
OE
OE
OE
TSSOP-8
To ensure the high-impedance state during power up or power
down, should be tied to VCC through a pull-up resistor, and
OE
the minimum value of the resistor is determined by the
current-sinking capability of the driver.
The U74LVC2G240 is fully specified for partial-power-down
applications using IOFF. The IOFF circuitry disables the outputs
and prevents damaging current backflow through the device
when it is powered down.
FEATURES
* Wide Supply Voltage Range from 1.65V to 5.5V
* Max tPD of 4.6 ns at 3.3V
* Up to 5.5V Inputs Accept Voltages
* Low Power Consumption, ICC = 10 μA (Max.)
* ±24 mA Output Driver at 3.3V
* Typical VOLP (Output Ground Bounce) < 0.8V,
VCC = 3.3 V, TA = 25 ℃
* Typical VOHV (Output VOH Undershoot) > 2V,
VCC = 3.3 V, TA = 25 ℃
ORDERING INFORMATION
Ordering Number
Package
Packing
U74LVC2G240G-P08-R
TSSOP-8
Tape Reel
U74LVC2G240G-P08-R
(1) R: Tape Reel
(2) P08:TSSOP-8
(3) G: Halogen Free
(1) Packing Type
(2) Package Type
(3) Halogen Free
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U74LVC2G240
CMOS IC
PIN CONFIGURATION
FUNCTION TABLE (Each Buffer)
INPUTS
OUTPUT
A
H
L
Y
L
OE
L
L
H
Z
H
X
LOGIC DIAGRAM (Positive Logic)
1
1OE
6
2
1A
1Y
7
2OE
3
5
2A
2Y
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U74LVC2G240
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
VCC
RATINGS
-0.5~6.5
-0.5~6.5
UNIT
V
Supply Voltage
Input Voltage
VIN
V
Output Voltage
(any output in the high-impedance or power-off state)
Output Voltage
(any output in the high or low state)
Input Clamp Current
Output Clamp Current
Output Current
VOUT
-0.5~6.5
V
V
VOUT
IIK
IOK
IOUT
ICC
-0.5~VCC+0.5
-50
-50
mA
mA
mA
mA
°C
±50
VCC or GND Current
Storage Temperature
±100
TSTG
-65 ~ +150
Note: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER
Junction to Ambient
SYMBOL
RATINGS
190
UNIT
°C /W
θJA
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
SYMBOL
CONDITIONS
Operating
MIN
1.65
TYP
MAX UNIT
5.5
V
VCC
Data retention only
VCC = 1.65V to 1.95V
VCC = 2.3V to 2.7V
VCC = 3V to 3.6V
1.5
0.65* VCC
1.7
High-Level Input Voltage
Low-Level Input Voltage
VIH
V
2
VCC = 4.5V to 5.5V
0.7* VCC
VCC = 1.65V to 1.95V
VCC = 2.3V to 2.7V
VCC = 3V to 3.6V
0.35* VCC
0.7
V
VIL
0.8
VCC = 4.5V to 5.5V
0.3* VCC
Input Voltage
VIN
0
0
0
5.5
VCC
5.5
-4
V
V
High or low state
3-state
Output Voltage
VOUT
VCC=1.65V
VCC=2.3V
-8
High-Level Output Current
Low-Level Output Current
IOH
mA
mA
-16
-24
-32
4
VCC=3V
VCC=4.5V
VCC=1.65V
VCC=2.3V
8
IOL
16
24
32
20
10
5
VCC=3V
VCC=4.5V
VCC=1.8±0.15V, 2.5±0.2V
VCC=3.3±0.3V
ns/
V
Input Transition Rise or Fall Rate
Operating Temperature
tR / tF
TOPR
VCC=5.0+0.5V
-40
85
°C
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U74LVC2G240
CMOS IC
ELECTRICAL CHARACTERISTICS (TA =25°C , VCC = 3.3 V, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
VCC -0.1
1.2
TYP MAX UNIT
IOH = -100 μA VCC = 1.65V to 5.5V
IOH = -4 mA
IOH = -8 mA
VCC = 1.65V
VCC = 2.3V
1.9
High-Level Output Voltage
VOH
V
IOH = -16 mA VCC = 3V
2.4
IOH = -24 mA VCC = 3V
2.3
IOH = -32 mA VCC = 4.5V
IOL = 100 μA VCC = 1.65V to 5.5V
3.8
0.1
IOL = 4 mA
IOL = 8 mA
VCC = 1.65V
VCC = 2.3V
0.45
0.3
V
Low-Level Output Voltage
Input Leakage Current
VOL
IOL = 16 mA VCC = 3V
IOL = 24 mA VCC = 3V
0.4
0.55
0.55
I
OL = 32 mA VCC = 4.5V
II(LEAK) VIN = 5.5V or GND, VCC = 0 to 5.5V
±5
μA
(A or
inputs)
OE
OFF-State Current
IOFF
IOZ
VIN or VO = 5.5V, VCC = 0V
VO = 0 to 5.5V, VCC = 3.6V
VIN = 5.5V or GND, IOUT = 0,
±10
10
μA
μA
High-Impedance State Current
Quiescent Supply Current
IQ
10
μA
VCC = 1.65V to 5.5V
One input at VCC – 0.6V;
other inputs at VCC or GND;
Additional quiescent Supply
Current
Δ IQ
500
μA
VCC=3V to 5.5V
Input Capacitance
Output Capacitance
CIN
VIN = VCC or GND, VCC=3.3V
VOUT = VCC or GND, VCC=3.3V
4
6
pF
pF
COUT
SWITCHING CHARACTERISTICS (TA =25°C)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
2
TYP MAX UNIT
VCC=1.8±0.15V, RL=1KΩ
11.3
5.5
CL=30pF
VCC=2.5±0.2V, RL=500Ω
VCC=3.3±0.3V,
1.4
t
PLH / tPHL
(tPD
Propagation Delay
from Input A to Output Y
ns
1.1
1
4.6
4
)
RL=500Ω
RL=500Ω CL=50pF
VCC=5±0.5V,
RL=500Ω
VCC=1.8±0.15V, RL=1KΩ
VCC=2.5±0.2V, RL=500Ω
2.7
1.9
1.4
1.1
1.7
0.8
1.2
0.5
11.7
6.6
5.4
5
CL=30pF
CL=50pF
CL=30pF
CL=50pF
t
t
PZL / tPZH
(tEN
Propagation Delay
ns
ns
from Input
to Output Y
)
OE
VCC=3.3±0.3V
RL=500Ω
VCC=5±0.5V
VCC=1.8±0.15V, RL=1KΩ
VCC=2.5±0.2V, RL=500Ω
12.8
5.7
5.5
4.2
PLZ / tPHZ
(tDIS
Propagation Delay
from Input to Output Y
)
OE
VCC=3.3±0.3V
RL=500Ω
VCC=5±0.5V
OPERATING CHARACTERISTICS (TA =25°C)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNIT
VCC = 1.8V
VCC = 2.5V
VCC = 3.3V
Outputs enabled
Outputs disabled
f=10MHz
f=10MHz
pF
15
Power Dissipation Capacitance per
buffer/driver
VCC = 5V
17
1
CPD
VCC = 1.8V
VCC = 2.5V
VCC = 3.3V
1
pF
2
VCC = 5V
2
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U74LVC2G240
CMOS IC
TEST CIRCUIT AND WAVEFORMS
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
VLOAD
GND
INPUTS
VΔ
VCC
VM
VLOAD
CL
RL
VIN
VCC
VCC
3V
tR, tF
≤2ns
1.8V±0.15V
2.5V±0.2V
3.3V±0.3V
5V±0.5V
VCC/2
VCC/2
1.5V
2*VCC
2*VCC
6V
30pF
30pF
50pF
50pF
1KΩ
500Ω
500Ω
500Ω
0.15V
0.15V
0.3V
≤2ns
≤2.5ns
≤2.5ns
VCC
VCC/2
2*VCC
0.3V
Notes: 1. CL includes probe and jig capacitance.
2. All input pulses are supplied by generators having the following characteristics: PRR ≤10MHz, ZO = 50Ω.
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U74LVC2G240
CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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