UNISONIC TECHNOLOGIES CO U74LVC2G240 Technical data

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.
To ensure the high-impedance state during power up or power

down, OE should be tied to VCC through a pull-up resistor, and
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 I
and prevents damaging current backflow through the device
when it is powered down.

OFF

. The I

 FEATURES

) inputs. When OE is low,

OE

is high, the

OE

circuitry disables the outputs

OFF

TSSOP-8

* Wide Supply Voltage Range from 1.65V to 5.5V
* Max t
* Up to 5.5V Inputs Accept Voltages
* Low Power Consumption, I
* ±24 mA Output Driver at 3.3V
* Typical V
V
* Typical V
V

of 4.6 ns at 3.3V

PD

(Output Ground Bounce) < 0.8V,

OLP

= 3.3 V, TA = 25 ℃

CC

(Output VOH Undershoot) > 2V,

OHV

= 3.3 V, T

CC

= 25 ℃

A

= 10 μA (Max.)

CC

 ORDERING INFORMATION

Ordering Number Package Packing

U74LVC2G240G-P08-R TSSOP-8 Tape Reel

U74LVC2G240G-P08-R

(1) Packing Type

(2) Package Type

(3) Halogen Free

(1) R: Tape Reel

(2) P08:TSSOP-8

(3) G: Halogen Free

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U74LVC2G240 CMOS IC

 PIN CONFIGURATION

 FUNCTION TABLE (Each Buffer)

INPUTS OUTPUT

OE

L H L
L L H

H X Z

 LOGIC DIAGRAM (Positive Logic)

A Y

1

1OE

2

1A 1Y

7

2OE

5

2A 2Y

6

3

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U74LVC2G240 CMOS IC

C

 ABSOLUTE MAXIMUM RATING

PARAMETER SYMBOL RATINGS UNIT

Supply Voltage VCC -0.5~6.5 V

Input Voltage VIN -0.5~6.5 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 IIK -50 mA
Output Clamp Current IOK -50 mA
Output Current I
VCC or GND Current ICC ±100 mA
Storage Temperature T

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 SYMBOL RATINGS UNIT

Junction to Ambient

 RECOMMENDED OPERATING CONDITIONS

V

-0.5~6.5 V

OUT

V

-0.5~VCC+0.5 V

OUT

±50 mA

OUT

-65 ~ +150 °C

STG

θ

JA

190

°C /W

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT

Supply Voltage VCC

High-Level Input Voltage VIH

Low-Level Input Voltage VIL

Operating 1.65 5.5
Data retention only 1.5
VCC = 1.65V to 1.95V

0.65* VCC

VCC = 2.3V to 2.7V 1.7
VCC = 3V to 3.6V 2
V

= 4.5V to 5.5V

CC

0.7* VCC

VCC = 1.65V to 1.95V

0.35* V

VCC = 2.3V to 2.7V 0.7
VCC = 3V to 3.6V 0.8
V

= 4.5V to 5.5V

CC

0.3* V

V

V

C

V

CC

Input Voltage VIN 0 5.5 V

Output Voltage V

OUT

High or low state 0 VCC
3-state 0 5.5

V

VCC=1.65V -4
VCC=2.3V -8

High-Level Output Current IOH

VCC=3V

=4.5V -32

V

CC

-16

-24

mA

VCC=1.65V 4
VCC=2.3V 8

Low-Level Output Current IOL

Input Transition Rise or Fall Rate tR / tF

Operating Temperature T

OPR

VCC=3V

=4.5V 32

V

CC

16
24

VCC=1.8±0.15V, 2.5±0.2V 20

VCC=3.3±0.3V 10
VCC=5.0+0.5V 5

-40 85 °C

mA

ns/

V

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U74LVC2G240 CMOS IC

A

 ELECTRICAL CHARACTERISTICS (T

=25°C , V

A

= 3.3 V, unless otherwise specified)

CC

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

I

= -100 μAVCC = 1.65V to 5.5V VCC -0.1

OH

I

= -4 mA VCC = 1.65V 1.2

OH

I

= -8 mA VCC = 2.3V 1.9

High-Level Output Voltage VOH

Low-Level Output Voltage VOL

Input Leakage Current
(A or

OE

inputs)

OFF-State Current I

I

I(LEAK)

OFF

OH

I

OH

I

OH

I

OH

I

OL

I

OL

I

OL

I

OL

I

OL

I

= 32 mA VCC = 4.5V 0.55

OL

V

IN

V

IN

= -16 mA VCC = 3V 2.4

V

= -24 mA VCC = 3V 2.3

= -32 mA VCC = 4.5V 3.8
= 100 μAVCC = 1.65V to 5.5V 0.1

= 4 mA VCC = 1.65V 0.45

= 8 mA VCC = 2.3V 0.3

= 16 mA VCC = 3V 0.4

V

= 24 mA VCC = 3V 0.55

= 5.5V or GND, VCC = 0 to 5.5V ±5 μA

or VO = 5.5V, VCC = 0V ±10 μA

High-Impedance State Current IOZ VO = 0 to 5.5V, VCC = 3.6V 10 μA

V

= 5.5V or GND, I

Quiescent Supply Current IQ

dditional quiescent Supply

Current

Δ I

Input Capacitance CIN V
Output Capacitance C

OUT

IN

V

= 1.65V to 5.5V

CC

One input at V
other inputs at V

Q

V

=3V to 5.5V

CC

= VCC or GND, VCC=3.3V 4 pF

IN

V

OUT

CC

= VCC or GND, VCC=3.3V 6 pF

OUT

– 0.6V;

or GND;

CC

= 0,

10 μA

500 μA

 SWITCHING CHARACTERISTICS (T

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

VCC=1.8±0.15V, RL=1KΩ 2 11.3
VCC=2.5±0.2V, RL=500Ω

t

/ t

PLH

(tPD)

PHL

VCC=3.3±0.3V,
R

=500Ω

L

V

CC

R

=500Ω

L

Propagation Delay
from Input A to Output Y

VCC=1.8±0.15V, RL=1KΩ 2.7 11.7

/ t

Propagation Delay
from Input

to Output Y

OE

t

PZL

(tEN)

PZH

VCC=2.5±0.2V, RL=500Ω
VCC=3.3±0.3V 1.4 5.4
V

CC

VCC=1.8±0.15V, RL=1KΩ 1.7 12.8

/ t

Propagation Delay
from Input

to Output Y

OE

t

PLZ

PHZ

VCC=2.5±0.2V, RL=500Ω

(t

)

VCC=3.3±0.3V 1.2 5.5

DIS

V

CC

 OPERATING CHARACTERISTICS (T

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

Outputs enabled

Power Dissipation Capacitance per
buffer/driver

C

PD

Outputs disabled

=25°C)

A

=5±0.5V,

=5±0.5V

=5±0.5V

=25°C)

A

C

=30pF

L

1.4 5.5

1.1 4.6

=500Ω CL=50pF

R

L

1 4

=30pF

C

L

R

=500Ω CL=50pF

L

C

=30pF

L

RL=500Ω CL=50pF

1.9 6.6

1.1 5

0.8 5.7

0.5 4.2

VCC = 1.8V
VCC = 2.5V
VCC = 3.3V 15
V

= 5V

CC

f=10MHz

17
VCC = 1.8V 1
VCC = 2.5V 1
VCC = 3.3V 2
V

= 5V

CC

f=10MHz

2

ns

ns

ns

pF

pF

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U74LVC2G240 CMOS IC

 TEST CIRCUIT AND WAVEFORMS

TEST S1
t
t
t

VCC

INPUTS

t

V

IN

R

, tF

1.8V±0.15V VCC ≤2ns VCC/2 2*VCC 30pF 1KΩ 0.15V

2.5V±0.2V VCC ≤2ns VCC/2 2*VCC 30pF 500Ω 0.15V

3.3V±0.3V 3V ≤2.5ns 1.5V 6V 50pF 500Ω 0.3V
5V±0.5V VCC ≤2.5ns VCC/2 2*VCC 50pF 500Ω 0.3V

V

V

M

LOAD

C

Open

PLH/tPHL

V

PLZ/tPZL

GND

PHZ/tPZH

R

L

L

LOAD

V

Δ

Notes: 1. C

includes probe and jig capacitance.

L

2. All input pulses are supplied by generators having the following characteristics: PRR ≤10MHz, Z

= 50Ω.

O

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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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