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MC3487N Datasheet Preview

MC3487N Datasheet

QUADRUPLE DIFFERENTIAL LINE DRIVER

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MC3487
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS098C − MAY 1980 − REVISED FEBRUARY 2004
D Meets or Exceeds Requirements of ANSI
TIA/EIA-422-B and ITU
Recommendation V.11
D 3-State, TTL-Compatible Outputs
D Fast Transition Times
D High-Impedance Inputs
D Single 5-V Supply
D Power-Up and Power-Down Protection
description/ordering information
D, N, OR NS PACKAGE
(TOP VIEW)
1A 1
1Y 2
1Z 3
1, 2EN 4
2Z 5
2Y 6
2A 7
GND 8
16 VCC
15 4A
14 4Y
13 4Z
12 3, 4EN
11 3Z
10 3Y
9 3A
The MC3487 offers four independent differential line drivers designed to meet the specifications of ANSI
TIA/EIA-422-B and ITU Recommendation V.11. Each driver has a TTL-compatible input buffered to reduce
current and minimize loading.
The driver outputs utilize 3-state circuitry to provide high-impedance states at any pair of differential outputs
when the appropriate output enable is at a low logic level. Internal circuitry is provided to ensure the
high-impedance state at the differential outputs during power-up and power-down transition times, provided the
output enable is low.
The MC3487 is designed for optimum performance when used with the MC3486 quadruple line receiver. It is
supplied in a 16-pin dual-in-line package and operates from a single 5-V supply.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N
Tube
MC3487N
MC3487N
0°C to 70°C
SOIC − D
Tube
Tape and reel
MC3487D
MC3487DR
MC3487
SOP − NS
Tape and reel MC3487NSR
MC3487
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
FUNCTION TABLE
(each driver)
OUTPUT
INPUT ENABLE
OUTPUTS
Y
Z
H
H
H
L
L
H
L
H
X
L
Z
Z
H = TTL high level, L = TTL low level,
X = irrelevant, Z = High impedance
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.
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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 2004, Texas Instruments Incorporated
1




etcTI

MC3487N Datasheet Preview

MC3487N Datasheet

QUADRUPLE DIFFERENTIAL LINE DRIVER

No Preview Available !

MC3487
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS098C − MAY 1980 − REVISED FEBRUARY 2004
logic diagram (positive logic)
4
1, 2EN
1
1A
7
2A
12
3, 4EN
9
3A
15
4A
schematics of inputs and outputs
EQUIVALENT OF EACH INPUT
VCC
Input
2
1Y
3
1Z
6
2Y
5
2Z
10
3Y
11
3Z
14
4Y
13
4Z
TYPICAL OF ALL OUTPUTS
VCC
9 NOM
Output
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Part Number MC3487N
Description QUADRUPLE DIFFERENTIAL LINE DRIVER
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