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零件编号 | 54ACT240 | ||
描述 | Octal Buffer/Line Driver | ||
制造商 | National Semiconductor | ||
LOGO | |||
1 Page
www.DataSheet4U.com
August 1998
54AC240 • 54ACT240
Octal Buffer/Line Driver with TRI-STATE® Outputs
General Description
The ’AC/’ACT240 is an octal buffer and line driver designed
to be employed as a memory address driver, clock driver and
bus oriented transmitter or receiver which provides improved
PC board density.
Features
n ICC and IOZ reduced by 50%
n Inverting TRI-STATE outputs drive bus lines or buffer
memory address registers
n Outputs source/sink 24 mA
n ’ACT240 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
— ’AC240: 5962-87550
— ’ACT240: 5962-87759
Logic Symbol
Connection Diagrams
IEEE/IEC
Pin Assignment
for DIP and Flatpak
Pin Names
OE1, OE2
I0– I7
O0– O7
DS100280-1
Description
TRI-STATE Output Enable Inputs
Inputs
Outputs
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
FACT® is a registered trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100280
DS100280-2
Pin Assignment
for LCC
DS100280-3
www.national.com
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20 Lead Ceramic Flatpak (F)
NS Package Number W20A
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE-
VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI-
CONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or sys- 2. A critical component in any component of a life support
tems which, (a) are intended for surgical implant into
device or system whose failure to perform can be rea-
the body, or (b) support or sustain life, and whose fail-
sonably expected to cause the failure of the life support
ure to perform when properly used in accordance
device or system, or to affect its safety or effectiveness.
with instructions for use provided in the labeling, can
be reasonably expected to result in a significant injury
to the user.
National Semiconductor
Corporation
Americas
Tel: 1-800-272-9959
Fax: 1-800-737-7018
Email: [email protected]
www.national.com
National Semiconductor
Europe
Fax: +49 (0) 1 80-530 85 86
Email: [email protected]
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Français Tel: +49 (0) 1 80-532 93 58
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Response Group
Tel: 65-2544466
Fax: 65-2504466
Email: [email protected]
National Semiconductor
Japan Ltd.
Tel: 81-3-5620-6175
Fax: 81-3-5620-6179
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
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页数 | 8 页 | ||
下载 | [ 54ACT240.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
54ACT240 | Octal Buffer/Line Driver | National Semiconductor |
54ACT240 | Octal Buffer/Line Driver with TRI-STATE Outputs | Texas Instruments |
54ACT241 | Octal Buffer/Line Driver | National Semiconductor |
54ACT241 | Octal Buffer/Line Driver with TRI-STATE Outputs (Rev. B) | Texas Instruments |
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