Texas Instruments SN74LVC1G126DBVR, SN74LVC1G126DCKR Datasheet

SN74LVC1G126
SINGLE BUS BUFFER GATE
WITH 3-STATE OUTPUTS
SCES224C – APRIL 1999 – REVISED FEBRUARY 2000
D
(Enhanced-Performance Implanted
CMOS) Submicron Process
D
I
Feature Supports Partial-Power-Down
off
Mode Operation
D
Supports 5-V VCC Operation
D
Package Options Include Plastic
DBV OR DCK PACKAGE
(TOP VIEW)
OE
GND
1
A
2 3
V
5
Y
4
CC
Small-Outline Transistor (DBV, DCK) Packages
description
This single bus buffer gate is designed for 1.65-V to 5.5-V VCC operation. The SN74LVC1G126 is a single bus driver/line driver with a 3-state output. The output is disabled when the
output-enable (OE) input is low. To ensure the high-impedance state during power up or power down, OE should be tied to GND through a
pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.
This device is fully specified for partial-power-down applications using I preventing damaging current backflow through the device when it is powered down.
The SN74LVC1G126 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
INPUTS
OE A
H H H H LL
L X Z
OUTPUT
Y
off
. The I
circuitry disables the outputs,
off
logic symbol
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
OE
1 2
A
EN
logic diagram (positive logic)
1
OE
24
AY
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.
EPIC is a trademark of Texas Instruments Incorporated.
PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice.
4
Y
Copyright 2000, Texas Instruments Incorporated
PRODUCT PREVIEW
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1
SN74LVC1G126
VCCSuppl
oltage
V
VIHHigh-level input voltage
V
VILLow-level input voltage
V
V
V
V
V
SINGLE BUS BUFFER GATE WITH 3-STATE OUTPUTS
SCES224C – APRIL 1999 – REVISED FEBRUARY 2000
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC –0.5 V to 6.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1) –0.5 V to 6.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range, V
(see Notes 1 and 2) –0.5 V to VCC + 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
Input clamp current, IIK (VI < 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO ±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC or GND ±100 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
(see Note 3): DBV package 347°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
JA
DCK package 389°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
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.
NOTES: 1. The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The value of VCC is provided in the recommended operating conditions table.
3. The package thermal impedance is calculated in accordance with JESD 51.
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
recommended operating conditions (see Note 4)
MIN MAX UNIT
pp
y v
p
p
V V
PRODUCT PREVIEW
I
OH
I
OL
t/v Input transition rise or fall rate
T
NOTE 4: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Input voltage 0 5.5 V
I
Output voltage 0 V
O
High-level output current
Low-level output current
Operating free-air temperature –40 85 °C
A
Implications of Slow or Floating CMOS Inputs
, literature number SCBA004.
Operating 1.65 5.5 Data retention only 1.5 VCC = 1.65 V to 1.95 V 0.65 × V VCC = 2.3 V to 2.7 V 1.7 VCC = 3 V to 3.6 V 2 VCC = 4.5 V to 5.5 V 0.7 × V VCC = 1.65 V to 1.95 V 0.35 × V 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 0.3 × V
VCC = 1.65 V –4 VCC = 2.3 V –8
= 3
CC
VCC = 4.5 V –32 VCC = 1.65 V 4 VCC = 2.3 V 8
= 3
CC
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 VCC = 5 V ± 0.5 V 5
CC
CC
CC
–16 –24
16 24
10
CC
CC
V
mA
mA
ns/V
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
V
V
3 V
V
V
3 V
(INPUT)
(OUTPUT)
PARAMETER
TEST CONDITIONS
UNIT
SN74LVC1G126
SINGLE BUS BUFFER GATE
WITH 3-STATE OUTPUTS
SCES224C – APRIL 1999 – REVISED FEBRUARY 2000
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS V
IOH = –100 mA 1.65 V to 5.5 V VCC–0.1 IOH = –4 mA 1.65 V 1.2 IOH = –8 mA 2.3 V 1.9 IOH = –16 mA
IOH = –24 mA IOH = –32 mA
IOL = 100 mA 1.65 V to 5.5 V 0.1 IOL = 4 mA 1.65 V 0.45 IOL = 8 mA 2.3 V 0.3 IOL = 16 mA
IOL = 24 mA IOL = 32 mA
VI = 5.5 V or GND 0 to 5.5 V ±5 VI or VO = 5.5 V 0 ±10
VO = 0 to 5.5 V 3.6 V 10 VI = 5.5 V or GND, IO = 0 1.65 V to 5.5 V 10 One input at VCC – 0.6 V, Other inputs at VCC or GND 3 V to 5.5 V 500 VI = VCC or GND 3.3 V pF
I I
I I I C
OH
OL
I off
OZ CC
i
A or OE inputs
CC
CC
4.5 V 3.8
4.5 V 0.55
MIN
2.4
2.3
TYP
MAX UNIT
0.4
0.55
m
A
m
A
m
A
m
A
m
A
switching characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figures 1 through 4)
PARAMETER
t
pd
t
en
t
dis
FROM
A OE OE
operating characteristics, T
C
Power dissipation capacitance f = 10 MHz pF
pd
= 25°C
A
TO
VCC = 1.8 V
± 0.15 V
MIN MAX MIN MAX MIN MAX MIN MAX
Y Y Y
VCC = 1.8 V VCC = 2.5 V VCC = 3.3 V VCC = 5 V
VCC = 2.5 V
± 0.2 V
TYP TYP TYP TYP
VCC = 3.3 V
± 0.3 V
VCC = 5 V
± 0.5 V
UNIT
ns ns ns
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3
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