Texas Instruments SN74ALS2541N, SN74ALS2541DW, SN74ALS2541DWR Datasheet
SN74ALS2541
OCTAL LINE DRIVER/MOS DRIVER
WITH 3-STATE OUTPUTS
SDAS273 – DECEMBER 1994
Copyright 1994, Texas Instruments Incorporated
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
• 3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
• pnp Inputs Reduce dc Loading
• Outputs Have 25-Ω Series Resistor
So No External Resistors Are Required
• Package Options Include Plastic
Small-Outline (DW) Packages and Standard
Plastic (N) 300-mil DIPs
description
This octal line driver/MOS driver is designed to
drive the capacitive input characteristics of MOS
devices and to have the performance of the
popular SN74ALS240 series. At the same time, this device offers a pinout with inputs and outputs on opposite
sides of the package. This arrangement greatly facilitates printed-circuit-board layout.
The 3-state output-control gate is a 2-input NOR. If either output-enable (OE1
or OE2) input is high, all eight
outputs are in the high-impedance state.
The SN74ALS2541 provides true data at the outputs.
The SN74ALS2541 is characterized for operation from 0°C to 70°C.
logic symbol
†
A3
4
A4
5
A5
6
A6
7
A7
8
A8
9
OE1
OE2
EN
&
A1
2
1
19
Y1
18
Y3
16
Y4
15
Y5
14
Y6
13
Y7
12
Y8
11
17
Y3A2
3
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE1
A1
A2
A3
A4
A5
A6
A7
A8
GND
V
CC
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
DW OR N PACKAGE
(TOP VIEW)
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.
SN74ALS2541
OCTAL LINE DRIVER/MOS DRIVER
WITH 3-STATE OUTPUTS
SDAS273 – DECEMBER 1994
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
logic diagram (positive logic)
A2
A3
A4
3
4
5
Y2
Y3
Y4
17
16
15
A5
A6
A7
A8
6
7
8
9
Y5
Y6
Y7
Y8
14
13
12
11
A1
2
Y1
18
19
1
OE2
OE1
All output resistors are 25 Ω.
absolute maximum rating over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, V
CC
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, V
I
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage applied to a disabled 3-state output 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
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.
recommended operating conditions
MIN NOM MAX UNIT
V
CC
Supply voltage 4.5 5 5.5 V
V
IH
High-level input voltage 2 V
V
IL
Low-level input voltage 0.8 V
I
OH
High-level output current –0.4 mA
I
OL
Low-level output current 12 mA
T
A
Operating free-air temperature 0 70 °C
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