Texas Instruments SN74AHC126D Bedienungsanleitung


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SN54AHC126, SN74AHC126
QUADRUPLE BUS BUFFER GATES
WITH 3-STATE OUTPUTS
SCLS257L – DECEMBER 1995 – REVISED JULY 2003
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Operating Range 2-V to 5.5-V VCC
Latch-Up Performance Exceeds 250 mA Per
JESD 17
description/ordering information
The ’AHC126 devices are quadruple bus buer
gates featuring independent line drivers with
3-state outputs. Each output is disabled when the
associated output-enable (OE) input is low. When
OE is high, the respective gate passes the data
from the A input to its Y output.
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.
ORDERING INFORMATION
TAPACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N Tube SN74AHC126N SN74AHC126N
SOIC – D
Tube SN74AHC126D
AHC126
SOIC
D
Tape and reel SN74AHC126DR
AHC126
–40
°
C to 85
°
C
SOP – NS Tape and reel SN74AHC126NSR AHC126
40 C°
to
85 C°
SSOP – DB Tape and reel SN74AHC126DBR HA126
TSSOP PW
Tube SN74AHC126PW
HA126
TSSOP
PW
Tape and reel SN74AHC126PWR
HA126
TVSOP – DGV Tape and reel SN74AHC126DGVR HA126
CDIP – J Tube SNJ54AHC126J SNJ54AHC126J
–55 C°C to 125°CFP – W Tube SNJ54AHC126W SNJ54AHC126W
LCCC – FK Tube SNJ54AHC126FK SNJ54AHC126FK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
Copyright 2003, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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.
SN54AHC126 . . . J OR W PACKAGE
SN74AHC126 . . . D, DB, DGV, N, NS, OR PW PACKAGE
(TOP VIEW)
SN54AHC126 . . . FK PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1OE
1A
1Y
2OE
2A
2Y
GND
VCC
4OE
4A
4Y
3OE
3A
3Y
3 2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
4A
NC
4Y
NC
3OE
1Y
NC
2OE
NC
2A
1A
1OE
NC
3Y
3A
V
4OE
2Y
GND
NC
CC
NC – No internal connection
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
SN54AHC126, SN74AHC126
QUADRUPLE BUS BUFFER GATES
WITH 3-STATE OUTPUTS
SCLS257L – – DECEMBER 1995 REVISED JULY 2003
2POST OFFICE BOX 655303 DALLAS, TEXAS 75265
FUNCTION TABLE
(each buer)
INPUTS OUTPUT
OE A Y
H H H
H L L
L X Z
logic diagram (positive logic)
1
1OE
2
1A 1Y
3
4
2OE
5
2A 2Y
6
10
3OE
9
3A 3Y
8
13
4OE
12
4A 4Y
11
Pin numbers shown are for the D, DB, DGV, J, N, NS, PW, and W packages.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC 0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1) 0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range, VO (see Note 1) 0.5 V to VCC + 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0) 20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0 or VO > VCC) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO (VO = 0 to VCC) ±25 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC or GND ±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θJA (see Note 2): D package 86°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DB package 96°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DGV package 127°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package 80°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NS package 76°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package 113°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg 65 C°C to 150°. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
SN54AHC126, SN74AHC126
QUADRUPLE BUS BUFFER GATES
WITH 3-STATE OUTPUTS
SCLS257L – – DECEMBER 1995 REVISED JULY 2003
3
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54AHC126 SN74AHC126
UNIT
MIN MAX MIN MAX
UNIT
VCC Supply voltage 2 5.5 2 5.5 V
VCC = 2 V 1.5 1.5
VIH High-level input voltage VCC = 3 V 2.1 2.1 V
VCC = 5.5 V 3.85 3.85
VCC = 2 V 0.5 0.5
VIL Low-level input voltage VCC = 3 V 0.9 0.9 V
VCC = 5.5 V 1.65 1.65
VIInput voltage 0 5.5 0 5.5 V
VOOutput voltage 0 VCC 0 VCC V
VCC = 2 V – –50 50 A
IOH High-level output current VCC = 3.3 V ± 0.3 V – –4 4
mA
VCC = 5 V ±0.5 V – –8 8
mA
VCC = 2 V 50 50 A
IOL Low-level output current VCC = 3.3 V ±0.3 V 4 4
mA
VCC = 5 V ±0.5 V 8 8
mA
t/ v
In
p
ut transition rise or fall rate
VCC = 3.3 V ± 0.3 V 100 100
ns/V
∆ ∆t/ v
Input
transition
rise
or
fall
rate
VCC = 5 V ±0.5 V 20 20
ns/V
TAOperating free-air temperature – –55 125 40 85 C°
NOTE 3: All unused inputs of the device must be held at V
CC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VCC
TA = 25°C SN54AHC126 SN74AHC126
UNIT
PARAMETER
V
CC MIN TYP MAX MIN MAX MIN MAX
UNIT
2 V 1.9 2 1.9 1.9
IOH = 50 A 3 V 2.9 3 2.9 2.9
VOH 4.5 V 4.4 4.5 4.4 4.4 V
IOH = 4 mA3 V 2.58 2.48 2.48
IOH = 8 mA4.5 V 3.94 3.8 3.8
2 V 0.1 0.1 0.1
IOL = 50 A 3 V 0.1 0.1 0.1
VOL 4.5 V 0.1 0.1 0.1 V
IOL = 4 mA 3 V 0.36 0.5 0.44
IOL = 8 mA 4.5 V 0.36 0.5 0.44
I
IVI = 5.5 V or GND 0 V to 5.5 V ± ± ±0.1 1* 1 A
I
OZ VO = VCC or GND 5.5 V ± ± ±0.25 2.5 2.5 A
I
CC VI = VCC or GND, IO = 0 5.5 V 4 40 40 A
C
iVI = VCC or GND 5 V 4 10 10 pF
* On products compliant to MIL-PRF-38535, this parameter is not production tested at V
CC = 0 V.


Produktspezifikationen

Marke: Texas Instruments
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Modell: SN74AHC126D

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