SN74LVC2G240
www.ti.com
SCES208I – APRIL 1999 – REVISED NOVEMBER 2013
Dual Buffer Driver With 3-State Outputs
Check for Samples: SN74LVC2G240
FEATURES
DESCRIPTION
•
This dual buffer driver is designed for 1.65-V to 5.5-V
VCC operation.
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2
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Available in the Texas Instruments NanoFree™
Package
Supports 5-V VCC Operation
Inputs Accept Voltages to 5.5 V
Max tpd of 4.6 ns at 3.3 V
Low Power Consumption, 10-µA Max ICC
±24-mA Output Drive at 3.3 V
Typical VOLP (Output Ground Bounce)
2 V at VCC = 3.3 V, TA = 25°C
Ioff Supports Live Insertion, Partial-PowerDown Mode, and Back-Drive Protection
Can Be Used as a Down Translator to
Translate Inputs From a Max of 5.5 V Down to
the VCC Level
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
DCT PACKAGE
(TOP VIEW)
The SN74LVC2G240 device is designed specifically
to improve the performance and density of 3-state
memory address drivers, clock drivers, and busoriented receivers and transmitters.
NanoFree™ package technology is a major
breakthrough in IC packaging concepts, using the die
as the package.
This device is organized as two 1-bit buffers/drivers
with separate output-enable (OE) inputs. When OE is
low, the device passes data from the A input to the Y
output. When OE is high, the outputs are in the highimpedance state.
To ensure the high-impedance state during power up
or power down, OE should be tied to VCC through a
pullup resistor; the minimum value of the resistor is
determined by the current-sinking capability of the
driver.
This device is fully specified for partial-power-down
applications using Ioff. The Ioff circuitry disables the
outputs, preventing damaging current backflow
through the device when it is powered down.
YZP PACKAGE
(BOTTOM VIEW)
DCU PACKAGE
(TOP VIEW)
1OE
1
8
VCC
1A
2
7
2OE
2Y
3
6
1Y
GND
4
5
2A
1OE
1A
2Y
GND
1
8
VCC
2
7
3
6
4
5
2OE
1Y
2A
GND
2Y
1A
1OE
4 5
3 6
2 7
1 8
2A
1Y
2OE
VCC
See mechanical drawings for dimensions.
1
2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
NanoFree is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999–2013, Texas Instruments Incorporated
SN74LVC2G240
SCES208I – APRIL 1999 – REVISED NOVEMBER 2013
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Function Table
(Each Buffer)
INPUTS
OUTPUT
Y
OE
A
L
H
L
L
L
H
H
X
Z
Logic Diagram (Positive Logic)
1
1OE
1A
6
2
1Y
7
2OE
3
5
2Y
2A
Absolute Maximum Ratings (1)
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
VCC
Supply voltage range
–0.5
6.5
V
VI
Input voltage range (2)
–0.5
6.5
V
VO
Voltage range applied to any output in the high-impedance or power-off state (2)
–0.5
6.5
V
–0.5
VCC + 0.5
(2) (3)
UNIT
VO
Voltage range applied to any output in the high or low state
IIK
Input clamp current
VI < 0
–50
mA
IOK
Output clamp current
VO < 0
–50
mA
IO
Continuous output current
±50
mA
±100
mA
Continuous current through VCC or GND
θJA
Tstg
(1)
(2)
(3)
(4)
2
Package thermal impedance (4)
DCT package
220
DCU package
227
YZP package
102
Storage temperature range
–65
150
V
°C/W
°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
The value of VCC is provided in the recommended operating conditions table.
The package thermal impedance is calculated in accordance with JESD 51-7.
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Product Folder Links: SN74LVC2G240
SN74LVC2G240
www.ti.com
SCES208I – APRIL 1999 – REVISED NOVEMBER 2013
Recommended Operating Conditions (1)
VCC
Supply voltage
Operating
Data retention only
High-level input voltage
MAX
5.5
1.5
VCC = 1.65 V to 1.95 V
VIH
MIN
1.65
VCC = 2.3 V to 2.7 V
1.7
VCC = 3 V to 3.6 V
VI
Input voltage
0.7 × VCC
0.35 × VCC
VCC = 2.3 V to 2.7 V
0.7
VCC = 3 V to 3.6 V
0.8
VCC = 4.5 V to 5.5 V
VO
Output voltage
5.5
High or low state
0
VCC
3-state
0
5.5
VCC = 3 V
–32
4
VCC = 2.3 V
Δt/Δv
Input transition rise or fall rate
8
16
VCC = 3 V
VCC = 4.5 V
32
VCC = 1.8 V ± 0.15 V, 2.5 V ± 0.2 V
20
VCC = 3.3 V ± 0.3 V
10
(1)
Operating free-air temperature
mA
24
VCC = 5 V ± 0.5 V
TA
mA
–24
VCC = 1.65 V
Low-level output current
V
–8
–16
VCC = 4.5 V
IOL
V
–4
VCC = 2.3 V
High-level output current
V
0.3 × VCC
0
VCC = 1.65 V
IOH
V
2
VCC = 1.65 V to 1.95 V
Low-level input voltage
V
0.65 × VCC
VCC = 4.5 V to 5.5 V
VIL
UNIT
ns/V
5
–40
125
°C
All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
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Product Folder Links: SN74LVC2G240
3
SN74LVC2G240
SCES208I – APRIL 1999 – REVISED NOVEMBER 2013
www.ti.com
Electrical Characteristics
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
VOH
TEST CONDITIONS
–40°C to 125°C
MAX
MIN
VCC – 0.1
VCC – 0.1
IOH = –4 mA
1.65 V
1.2
1.2
IOH = –8 mA
2.3 V
1.9
1.9
2.4
2.4
2.3
2.3
3.8
3.8
3V
TYP (1)
MAX
4.5 V
IOL = 100 µA
1.65 V
to
5.5 V
0.1
0.1
IOL = 4 mA
1.65 V
0.45
0.45
IOL = 8 mA
2.3 V
0.3
0.3
3V
IOL = 24 mA
UNIT
V
IOH = –32 mA
IOL = 16 mA
II
TYP (1)
1.65 V
to
5.5 V
IOH = –24 mA
A or OE
inputs
–40°C to 85°C
MIN
IOH = –100 µA
IOH = –16 mA
VOL
VCC
0.4
0.4
0.55
0.55
V
IOL = 32 mA
4.5 V
0.55
0.75
VI = 5.5 V or GND
0 to
5.5 V
±5
±5
µA
Ioff
VI or VO = 5.5 V
0
±10
±10
µA
IOZ
VO = 0 to 5.5 V
3.6 V
10
10
µA
ICC
VI = 5.5 V or GND,
IO = 0
1.65 V
to
5.5 V
10
10
µA
ΔICC
One input at VCC – 0.6
V,
Other inputs at VCC or GND
3 V to
5.5 V
500
500
µA
Ci
VI = VCC or GND
3.3 V
4
pF
Co
VO = VCC or GND
3.3 V
6
pF
(1)
4
All typical values are at VCC = 3.3 V, TA = 25°C.
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Copyright © 1999–2013, Texas Instruments Incorporated
Product Folder Links: SN74LVC2G240
SN74LVC2G240
www.ti.com
SCES208I – APRIL 1999 – REVISED NOVEMBER 2013
Switching Characteristics
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)
SN74LVC2G240
–40°C to 85°C
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
tpd
A
Y
2.0
11.3
1.4
5.5
1.1
4.6
1.0
4.0
ns
ten
OE
Y
2.7
11.7
1.9
6.6
1.4
5.4
1.1
5.0
ns
tdis
OE
Y
1.7
12.8
0.8
5.7
1.2
5.5
0.5
4.2
ns
VCC = 1.8 V
± 0.15 V
VCC = 2.5 V
± 0.2 V
VCC = 3.3 V
± 0.3 V
VCC = 5 V
± 0.5 V
UNIT
Switching Characteristics
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)
SN74LVC2G240
–40°C to 85°C
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
tpd
A
Y
2.0
13.7
1.4
6.8
1.1
5.8
1.0
5.0
ns
ten
OE
Y
2.7
14.3
1.9
8.0
1.4
6.6
1.1
6.0
ns
tdis
OE
Y
1.7
15.3
0.8
7.5
1.2
6.8
0.5
5.4
ns
VCC = 1.8 V
± 0.15 V
VCC = 2.5 V
± 0.2 V
VCC = 3.3 V
± 0.3 V
VCC = 5 V
± 0.5 V
UNIT
Operating Characteristics
TA = 25°C
PARAMETER
Cpd
Power dissipation
capacitance
per buffer driver
TEST
CONDITIONS
VCC = 1.8 V
VCC = 2.5 V
VCC = 3.3 V
VCC = 5 V
TYP
TYP
TYP
TYP
15
17
2
3
Outputs enabled
Outputs disabled
f = 10 MHz
1
1
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Product Folder Links: SN74LVC2G240
UNIT
pF
5
SN74LVC2G240
SCES208I – APRIL 1999 – REVISED NOVEMBER 2013
www.ti.com
Parameter Measurement Information
VLOAD
S1
RL
From Output
Under Test
Open
TEST
GND
CL
(see Note A)
S1
Open
VLOAD
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
RL
GND
LOAD CIRCUIT
INPUTS
VCC
1.8 V ± 0.15 V
2.5 V ± 0.2 V
3.3 V ± 0.3 V
5 V ± 0.5 V
VI
tr/tf
VCC
VCC
3V
VCC
£2 ns
£2 ns
£2.5 ns
£2.5 ns
VM
VLOAD
CL
RL
VD
VCC/2
VCC/2
1.5 V
VCC/2
2 × VCC
2 × VCC
6V
2 × VCC
30 pF
30 pF
50 pF
50 pF
1 kW
500 W
500 W
500 W
0.15 V
0.15 V
0.3 V
0.3 V
VI
Timing Input
VM
0V
tW
tsu
VI
Input
VM
VM
th
VI
Data Input
VM
VM
0V
0V
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VI
VM
Input
VM
0V
tPLH
VOH
Output
VM
VOL
tPHL
tPLZ
VLOAD/2
VM
tPZH
VM
VM
VM
0V
Output
Waveform 1
S1 at VLOAD
(see Note B)
tPLH
VOH
Output
VM
tPZL
tPHL
VM
VI
Output
Control
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
Output
Waveform 2
S1 at GND
(see Note B)
VOL + VD
VOL
tPHZ
VM
VOH – VD
VOH
»0 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR £ 10 MHz, ZO = 50 W.
D. The outputs are measured one at a time, with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
H. All parameters and waveforms are not applicable to all devices.
Figure 1. Load Circuit and Voltage Waveforms
6
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Copyright © 1999–2013, Texas Instruments Incorporated
Product Folder Links: SN74LVC2G240
SN74LVC2G240
www.ti.com
SCES208I – APRIL 1999 – REVISED NOVEMBER 2013
REVISION HISTORY
Changes from Revision H (February 2007) to Revision I
Page
•
Updated document to new TI data sheet format. ................................................................................................................. 1
•
Removed ordering information. ............................................................................................................................................ 1
•
Updated Features. ................................................................................................................................................................ 1
•
Added ESD warning. ............................................................................................................................................................ 2
•
Updated operating temperature range. ................................................................................................................................. 3
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Copyright © 1999–2013, Texas Instruments Incorporated
Product Folder Links: SN74LVC2G240
7
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
74LVC2G240DCURG4
ACTIVE
VSSOP
DCU
8
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
C40R
SN74LVC2G240DCTR
ACTIVE
SM8
DCT
8
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
C40
(R, Z)
SN74LVC2G240DCUR
ACTIVE
VSSOP
DCU
8
3000
RoHS & Green
NIPDAU | SN
Level-1-260C-UNLIM
-40 to 125
(C40J, C40Q, C40R)
SN74LVC2G240YZPR
ACTIVE
DSBGA
YZP
8
3000
RoHS & Green
SNAGCU
Level-1-260C-UNLIM
-40 to 125
(CK7, CKN)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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