SN54AHCT541, SN74AHCT541
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS269K – DECEMBER 1995 – REVISED OCTOBER 1998
D
D
D
SN54AHCT541 . . . J OR W PACKAGE
SN74AHCT541 . . . DB, DGV, DW, N, OR PW PACKAGE
(TOP VIEW)
Inputs Are TTL-Voltage Compatible
EPIC ™ (Enhanced-Performance Implanted
CMOS) Process
Latch-Up Performance Exceeds 250 mA Per
JESD 17
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), Thin Very Small-Outline (DGV), Thin
Shrink Small-Outline (PW), and Ceramic
Flat (W) Packages, Ceramic Chip Carriers
(FK), and Standard Plastic (N) and Ceramic
(J) DIPs
OE1
A1
A2
A3
A4
A5
A6
A7
A8
GND
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
VCC
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
SN54AHCT541 . . . FK PACKAGE
(TOP VIEW)
A2
A1
OE1
VCC
description
The ’AHCT541 octal buffers/drivers are ideal for
driving bus lines or buffer memory address
registers. These devices feature inputs and
outputs on opposite sides of the package to
facilitate printed circuit board layout.
A3
A4
A5
A6
A7
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
Y1
Y2
Y3
Y4
Y5
A8
GND
Y8
Y7
Y6
The 3-state control gate is a 2-input AND gate with
active-low inputs so that if either output-enable
(OE1 or OE2) input is high, all corresponding
outputs are in the high-impedance state. The
outputs provide noninverted data when they are
not in the high-impedance state.
OE2
D
D
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.
The SN54AHCT541 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74AHCT541 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
INPUTS
OE1
OE2
A
OUTPUT
Y
L
L
L
L
L
L
H
H
H
X
X
Z
X
H
X
Z
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.
Copyright © 1998, 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.
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.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
