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DS3487N Datasheet

  • DS3487N

  • Quad TRI-STATE Line Driver

  • 161.77KB

  • 6頁

  • NSC

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DS3487 Quad TRI-STATE Line Driver
May 1998
DS3487
Quad TRI-STATE
廬
Line Driver
General Description
National鈥檚 quad RS-422 driver features four independent
drivers which comply with EIA Standards for the electrical
characteristics of balanced voltage digital interface circuits.
The outputs are TRI-STATE structures which are forced to a
high impedance state when the appropriate output control
pin reaches a logic zero condition. All input pins are PNP
buffered to minimize input loading for either logic one or logic
zero inputs.
Features
n
n
n
n
n
n
n
Four independent drivers
TRI-STATE
廬
outputs
Fast propagation times (typ 10 ns)
TTL compatible
5V supply
Output rise and fall times less than 15 ns
Pin compatible with DS8924 and MC3487
Block and Connection Diagrams
Dual-In-Line Package
DS005780-1
DS005780-2
Top View
Order Number DS3487M or DS3487N
See NS Package Number M16A or N16E
Truth Table
Input
H
L
X
Control
Input
H
H
L
Non-Inverting
Output
H
L
Z
Inverting
Output
L
H
Z
L = Low logic state
H = High logic state
X = Irrelevant
Z = TRI-STATE(high impedance)
TRI-STATE
廬
is a registered trademark of National Semiconductor Corporation.
漏 1998 National Semiconductor Corporation
DS005780
www.national.com

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