SN54AHCT126, SN74AHCT126
QUADRUPLE BUS BUFFER GATES
WITH 3-STATE OUTPUTS
SCLS265O – DECEMBER 1995 – REVISED JULY 2003
SN54AHCT126 . . . J OR W PACKAGE
SN74AHCT126 . . . D, DB, DGV, N, NS, OR PW PACKAGE
(TOP VIEW)
Inputs Are TTL-Voltage Compatible
Latch-Up Performance Exceeds 250 mA Per
JESD 17
1OE
1A
V
CC
13 4OE
1
2
3
4
5
6
7
14
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
12
11
10
9
1Y
4A
2OE
2A
4Y
description/ordering information
3OE
3A
2Y
The ’AHCT126 devices are quadruple bus buffer
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.
8
GND
3Y
SN54AHCT126 . . . FK PACKAGE
(TOP VIEW)
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.
3
2
1 20 19
18
4A
NC
4Y
1Y
NC
4
5
6
7
8
17
16
2OE
NC
15 NC
14
9 10 11 12 13
3OE
2A
NC – No internal connection
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP – N
SOIC – D
Tube
SN74AHCT126N
SN74AHCT126N
Tube
SN74AHCT126D
AHCT126
Tape and reel
Tape and reel
Tape and reel
Tube
SN74AHCT126DR
SN74AHCT126NSR
SN74AHCT126DBR
SN74AHCT126PW
SN74AHCT126PWR
SN74AHCT126DGVR
SNJ54AHCT126J
SNJ54AHCT126W
SNJ54AHCT126FK
SOP – NS
AHCT126
HB126
–40°C to 85°C
SSOP – DB
TSSOP – PW
HB126
Tape and reel
Tape and reel
Tube
TVSOP – DGV
CDIP – J
HB126
SNJ54AHCT126J
SNJ54AHCT126W
SNJ54AHCT126FK
–55°C to 125°C
CFP – W
Tube
LCCC – FK
Tube
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
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.
Copyright 2003, Texas Instruments Incorporated
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.
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.
1
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