SLLS098C − MAY 1980 − REVISED FEBRUARY 2004
D Meets or Exceeds Requirements of ANSI
D
D
D
D
D
D, N, OR NS PACKAGE
(TOP VIEW)
TIA/EIA-422-B and ITU
Recommendation V.11
3-State, TTL-Compatible Outputs
Fast Transition Times
High-Impedance Inputs
Single 5-V Supply
Power-Up and Power-Down Protection
1A
1Y
1Z
1, 2EN
2Z
2Y
2A
GND
description/ordering information
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
VCC
4A
4Y
4Z
3, 4EN
3Z
3Y
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
PDIP − N
0°C to 70°C
ORDERABLE
PART NUMBER
PACKAGE†
TA
SOIC − D
Tube
MC3487N
Tube
MC3487D
Tape and reel
MC3487DR
TOP-SIDE
MARKING
MC3487N
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)
OUTPUTS
INPUT
OUTPUT
ENABLE
H
H
H
L
L
H
L
H
X
L
Z
Z
Y
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.
Copyright 2004, Texas Instruments Incorporated
! "#$ %!&
% "! "! '! ! !( !
%% )*& % "!+ %! !!$* $%!
!+ $$ "!!&
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1
SLLS098C − MAY 1980 − REVISED FEBRUARY 2004
logic diagram (positive logic)
1, 2EN
1A
2A
3, 4EN
3A
4A
4
1
7
2
3
6
5
1Y
1Z
2Y
2Z
12
9
15
10
11
14
13
3Y
3Z
4Y
4Z
schematics of inputs and outputs
EQUIVALENT OF EACH INPUT
VCC
TYPICAL OF ALL OUTPUTS
VCC
Input
9 Ω NOM
Output
2
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SLLS098C − MAY 1980 − REVISED FEBRUARY 2004
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V
Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
Output voltage, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Package thermal impedance, θJA (see Notes 2 and 3): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W
NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W
Operating virtual junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −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.
NOTES: 1. All voltage values, except differential output voltage, VOD, are with respect to the network ground terminal.
2. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions
VCC
VIH
Supply voltage
VIL
TA
Low-level input voltage
High-level input voltage
MIN
NOM
MAX
UNIT
4.75
5
5.25
V
2
Operating free-air temperature
0
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V
0.8
V
70
°C
3
SLLS098C − MAY 1980 − REVISED FEBRUARY 2004
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VIK
VOH
Input clamp voltage
VOL
|VOD|
Low-level output voltage
Differential output voltage
VIL = 0.8 V,
RL = 100 Ω,
∆|VOD|
Change in magnitude of
differential output voltage†
RL = 100 Ω,
VOC
Common-mode output voltage‡
∆|VOC|
High-level output voltage
II = −18 mA
VIL = 0.8 V,
MIN
MAX
−1.5
VIH = 2 V,
VIH = 2 V,
IOH = −20 mA
IOL = 48 mA
2.5
UNIT
V
V
0.5
V
See Figure 1
±0.4
V
RL = 100 Ω,
See Figure 1
3
V
Change in magnitude of
common-mode output voltage†
RL = 100 Ω,
See Figure 1
±0.4
V
IO
Output current with power off
VCC = 0
VO = 6 V
VO = −0.25 V
−100
IOZ
High-impedance-state output current
Output enables at 0.8 V
VO = 2.7 V
VO = 0.5 V
II
Input current at maximum input
voltage
VI = 5.5 V
100
µA
VI = 2.7 V
VI = 0.5 V
50
µA
IIH
IIL
High-level input current
IOS
Short-circuit output current §
ICC
Supply current (all drivers)
Low-level input current
See Figure 1
2
100
100
−100
VI = 2 V
Outputs disabled
−40
No load
µA
A
−400
µA
−140
mA
105
Outputs enabled,
A
µA
85
mA
† ∆|VOD| and ∆|VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed from a high level to a low
level.
‡ In ANSI Standard TIA/EIA-422-B, VOC, which is the average of the two output voltages with respect to ground, is called output offset voltage,
VOS.
§ Only one output at a time should be shorted, and duration of the short circuit should not exceed one second.
switching characteristics over recommended operating free-air temperature range, VCC = 5 V
PARAMETER
TEST CONDITIONS
MIN
MAX
Propagation delay time, low- to high-level output
Propagation delay time, high- to low-level output
CL = 15 pF,
See Figure 2
tsk
tt(OD)
Skew time
CL = 15 pF,
See Figure 2
6
ns
Differential-output transition time
CL = 15 pF,
See Figure 3
20
ns
tPZH
tPZL
Output enable time to high level
tPHZ
tPLZ
Output disable time from high level
4
Output enable time to low level
Output disable time from low level
CL = 50 pF,
See Figure 4
CL = 50 pF,
See Figure 4
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20
UNIT
tPLH
tPHL
20
30
30
25
30
ns
ns
ns
SLLS098C − MAY 1980 − REVISED FEBRUARY 2004
PARAMETER MEASUREMENT INFORMATION
50 Ω
VOD
50 Ω
VOC
Figure 1. Differential and Common-Mode Output Voltages
3V
Input
5V
SW1
Generator
(see Note A)
200 Ω
1.5 V
1.5 V
tPHL
tPLH
VOH
1.5 V
Y Output
1.5 V
Skew
50 Ω
tPHL
CL = 15 pF
(see Note B)
3V
See Note C
0V
Skew
tPLH
1.5 V
Z Output
ÏÏÏ
ÏÏÏ
VOL
VOH
1.5 V
VOL
VOLTAGE WAVEFORMS
TEST CIRCUIT
NOTES: A. The input pulse is supplied by a generator having the following characteristics: tr ≤ 5 ns, tf ≤ 5 ns, PRR ≤ 1 MHz, duty cycle = 50%,
ZO = 50 Ω.
B. CL includes probe and stray capacitance.
C. All diodes are 1N916 or 1N3064.
Figure 2. Test Circuit and Voltage Waveforms
CL
Generator
(see Note A)
50 Ω
RL = 100 Ω
Output
3V
Input
0V
tt(OD)
tt(OD)
3V
CL = 15 pF
(see Note B)
90%
Output
10%
TEST CIRCUIT
VOLTAGE WAVEFORMS
NOTES: A. The input pulse is supplied by a generator having the following characteristics: tr ≤ 5 ns, tf ≤ 5 ns, PRR ≤ 1 MHz, duty cycle = 50%,
ZO = 50 Ω.
B. CL includes probe and stray capacitance.
Figure 3. Test Circuit and Voltage Waveforms
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5
SLLS098C − MAY 1980 − REVISED FEBRUARY 2004
PARAMETER MEASUREMENT INFORMATION
5V
Output
SW3
200 Ω
SW1
0 V or 3 V
Generator
(see Note A)
CL = 15 pF
(see Note B)
1 kΩ
See Note C
50 Ω
SW2
TEST CIRCUIT
Output
Enable Input
Output
Enable Input
3V
1.5 V
tPHZ
0V
tPZL
0V
VOH
SW1 Closed
SW2 Closed
≈1.5 V
≈1.5 V
SW1 Closed
0.5 V SW2 Closed
VOL
3V
1.5 V
0.5 V
Output
tPLZ
Output
1.5 V
Output
VOL
tPZH
Output
SW1 Closed
SW2 Open
1.5 V
VOH
SW1 Open
SW2 Closed
VOLTAGE WAVEFORMS
NOTES: A. The input pulse is supplied by a generator having the following characteristics: tr ≤ 5 ns, tf ≤ 5 ns, PRR ≤ 1 MHz, duty cycle = 50%,
ZO = 50 Ω.
B. CL includes probe and stray capacitance.
C. All diodes are 1N916 or 1N3064.
Figure 4. Driver Test Circuit and Voltage Waveforms
6
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PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
MC3487D
ACTIVE
SOIC
D
16
40
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
MC3487
Samples
MC3487DE4
ACTIVE
SOIC
D
16
40
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
MC3487
Samples
MC3487DR
ACTIVE
SOIC
D
16
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
MC3487
Samples
MC3487N
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
N / A for Pkg Type
0 to 70
MC3487N
Samples
MC3487NE4
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
N / A for Pkg Type
0 to 70
MC3487N
Samples
MC3487NSR
ACTIVE
SO
NS
16
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
MC3487
Samples
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of