SN54LVC540A, SN74LVC540A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS297H – JANUARY 1993 – REVISED JUNE 1998
SN54LVC540A . . . J OR W PACKAGE
SN74LVC540A . . . DB, DW, OR PW PACKAGE
(TOP VIEW)
EPIC (Enhanced-Performance Implanted
CMOS) Submicron Process
Typical V
< 0.8 V at V
(Output Ground Bounce)
OLP
= 3.3 V, T = 25°C
CC
A
OE1
A1
A2
A3
A4
A5
A6
A7
A8
V
CC
OE2
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
Typical V
> 2 V at V
(Output V
Undershoot)
OHV
CC
OH
= 3.3 V, T = 25°C
Y1
Y2
Y3
Y4
A
Power Off Disables Outputs, Permitting
Live Insertion
Supports Mixed-Mode Signal Operation on
All Ports (5-V Input/Output Voltage With
Y5
13 Y6
12 Y7
11 Y8
3.3-V V
)
CC
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
GND 10
SN54LVC540A . . . FK PACKAGE
(TOP VIEW)
Latch-Up Performance Exceeds 250 mA Per
JESD 17
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), Thin Shrink Small-Outline (PW), and
Ceramic Flat (W) Packages, Ceramic Chip
Carriers (FK), and DIPs (J)
3
2
1 20 19
18
Y1
Y2
Y3
Y4
Y5
A3
A4
A5
A6
A7
4
5
6
7
8
17
16
15
14
description
9 10 11 12 13
TheSN54LVC540Aoctalbuffer/driverisdesigned
for 2.7-V to 3.6-V V operation and the
CC
SN74LVC540A octal buffer/driver is designed for
1.65-V to 3.6-V V operation.
CC
These devices are ideal for driving bus lines or
buffer memory address registers. These devices
featureinputsandoutputsonoppositesidesofthe
package that facilitate printed circuit board layout.
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 outputs are in the high-impedance state.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators
in a mixed 3.3-V/5-V system environment.
To ensure the high-impedance state during power up or power down, OE should be tied to V through a pullup
CC
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN54LVC540A is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74LVC540A is characterized for operation from –40°C to 85°C.
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
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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