Device Operating
Temperature Range Package
SEMICONDUCTOR
TECHNICAL DATA
QUAD EIA–422 LINE DRIVER
WITH THREE–STATE
OUTPUTS
ORDERING INFORMATION
MC3487P
MC3487D TA = 0 to +70°CPlastic DIP
SO–16
PIN CONNECTIONS
Order this document by MC3487/D
P SUFFIX
PLASTIC PACKAGE
CASE 648
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO–16)
10
11
13
14
Outputs B
Outputs A 2
3
5
6Outputs C
Outputs D
VCC
Input D
C/D Control
Input C98
7
1
4
Gnd
Input B
A/B Control 12
15
16
Input A
1
MOTOROLA ANALOG IC DEVICE DATA
Motorola
i
s Quad EIA–422 Driver features four independent driver chains
which comply with EIA Standards for the Electrical Characteristics of
Balanced Voltage Digital Interface Circuits. The outputs are three–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. In
addition, internal circuitry assures a high impedance output state during the
transition between power up and power down. A summary of MC3487
features include:
•Four Independent Driver Chains
•Three–State Outputs
•PNP High Impedance Inputs (PIA Compatible)
•Fast Propagation Times (Typical 15 ns)
•TTL Compatible
•Single 5.0 V Supply Voltage
•Output Rise and Fall Times Less Than 20 ns
•DS 3487 Provides Second Source
Driver Block Diagram
Input
Non–Inverting
Inverting
Output
Control
Outputs
TRUTH TABLE
Input Control Input Non–Inverting Output Inverting Output
H H H L
L H L H
X L Z Z
L = Low Logic State
H = High Logic State
X = Irrelevant
Z = Third–State (High Impedance)
Motorola, Inc. 1995
MC3487
2MOTOROLA ANALOG IC DEVICE DATA
MAXIMUM RATINGS
Rating Symbol Value Unit
Power Supply Voltage VCC 8.0 Vdc
Input Voltage VI5.5 Vdc
Operating Ambient Temperature Range TA0 to +70 °C
Operating Junction Temperature Range TJ150 °C
Storage Temperature Range Tstg –65 to +150 °C
ELECTRICAL CHARACTERISTICS (Unless otherwise noted, specifications apply 4.75 V
p
VCC
p
5.25 V and 0°C
p
TA
p
70°C.
Typical values measured at VCC = 5.0 V, and TA = 25°C.)
Characteristic Symbol Min Typ Max Unit
Input Voltage – Low Logic State VIL – – 0.8 Vdc
Input Voltage – High Logic State VIH 2.0 – – Vdc
Input Current – Low Logic State
(VIL = 0.5 V) IIL – – – 400 µA
Input Current – High Logic State
(VIH = 2.7 V)
(VIH = 5.5 V)
IIH –
––
–+ 50
+ 100
µA
Input Clamp Voltage
(IIK = –18 mA) VIK – – – 1.5 V
Output Voltage – Low Logic State
(IOL = 48 mA) VOL – – 0.5 V
Output Voltage – High Logic State
(IOH = –20 mA) VOH 2.5 – – V
Output Short–Circuit Current
(VIH = 2.0 V, Note 1) IOS – 40 – – 140 mA
Output Leakage Current – Hi–Z State
(VIL = 0.5 V, VIL(Z) = 0.8 V)
(VIH = 2.7 V, VIL(Z) = 0.8 V)
IOL(Z) –
––
–±100
±100
µA
Output Leakage Current – Power OFF
(VOH = 6.0 V, VCC = 0 V)
(VOL = –0.25 V, VCC = 0 V)
IOL(off) –
––
–+ 100
– 100
µA
Output Offset Voltage Difference (Note 2) VOS – VOS – – ±0.4 V
Output Differential Voltage (Note 2) VOD 2.0 – – V
Output Differential Voltage Difference (Note 2) ∆VOD– – ±0.4 V
Power Supply Current
(Control Pins = Gnd, Note 3)
(Control Pins = 2.0 V) ICCX
ICC –
––
–105
85
mA
NOTES: 1.Only one output may be shorted at a time.
2.See EIA Specification EIA–422 for exact test conditions.
3.Circuit in three–state condition.
SWITCHING CHARACTERISTICS (VCC = 5.0 V, TA = 25°C, unless otherwise noted.)
Characteristic Symbol Min Typ Max Unit
Propagation Delay Times
High to Low Output
Low to High Output tPHL
tPLH –
––
–20
20
ns
Output Transition Times – Differential
High to Low Output
Low to High Output tTHL
tTLH –
––
–20
20
ns
Propagation Delay – Control to Output
(RL = 200 Ω, CL = 50 pF)
(RL = 200 Ω, CL = 50 pF)
(RL = ∞, CL = 50 pF)
(RL = 200 Ω, CL = 50 pF)
tPHZ(E)
tPLZ(E)
tPZH(E)
tPZL(E)
–
–
–
–
–
–
–
–
25
25
30
30
ns
MC3487
3
MOTOROLA ANALOG IC DEVICE DATA
Control
Input 1.5 V
tPHZ(E)
0.5 V
0.5 V
VOH
p
1.5 V
≈
1.5 V
VOL
0 V
tPLZ(E)
0
Output
Output
CL
50 pF
Open for
tPZL(E) Test Only
1.0 k
200
To Scope
Output
Open for tPZH(E) Test Only
5.0 V
1N3064
or Equivalent
3.0 V or Gnd
Input
CL Includes Probe and
Jig Capacitance
3.0 V
Inv
Output
To Scope (Input)
Non–Inv
Output
50
Control
Pulse
Generator
Pulse generator characteristics
Zo = 50
Ω
PRR = 1.0 MHz
50% Duty Cycle
tTLH, tTHL
p
5 ns
VOH
0 V
0 V
tPZH(E)
0
VOL
Output
Output
Control
Input
1.5 V
3.0 V
1.5 V
1.5 V
tPZL(E)
CL includes probe
and jig capacitance
Input
Output
tPHL
3.0 V
tPLH
Output
tPLH
1.5 V
tPHL
0 V
VOH
VOL
0 V
1.5 V
0 V
VOH
1.5 V
1.5 V 1.5 V
1.5 V
1N914 or
Equivalent
Scope
(Output)
CL = 50 pF
1/4
MC3487
Inv
Output
Non–Inv
Output
Control
3.0 V
Scope
(Input)
Pulse
Generator 51
5.0 V
RL = 200
Ω
VOL
Pulse generator characteristics
Zo = 50
Ω
PRR = 1.0 MHz
50% Duty Cycle
tTLH, tTHL
p
5 ns
Figure 1. Three–State Enable Test Circuit
and Waveforms
Figure 2. Propagation Delay Times Input to
Output Waveforms and Test Circuit
MC3487
4MOTOROLA ANALOG IC DEVICE DATA
Figure 3. Output Transition Times Test Circuit and Waveforms
Scope
Output
(Differential)
CL
CL includes probe
and jig capacitance
CL
15 pF
51
3.0 V
Scope
Input
1/4
MC3487
Output
(Differential)
3.0 V
90%
tTLH
10%
Input
0 V
RL =
100
Ω
tTHL
Pulse generator characteristics
Zo = 50
Ω
PRR = 1.0 MHz
50% Duty Cycle
tTLH, tTHL
p
5 ns
VOL, OUTPUT VOLTAGE–LOW (mV)
0
VCC = 5.0 V
TA = 25
°
C
700500100
(Typical)
300200 400
20
30
40
50
10
60
70
0
80
0
4.01.0 3.0
(Typical)
2.0
TA = 25
°
C
VCC = 5.25 V
VOH, OUTPUT VOLTAGE (V)
20
30
40
50
600 800
VCC = 5.0 V
VCC = 4.75 V
80
0
70
60
10
, OUTPUT CURRENT (mA)IOH
, OUTPUT SINK CURRENT – LOW (mA)IOL
Figure 4. Output Current versus Output Voltage Figure 5. Output Sink Current versus
Output Voltage
MC3487
5
MOTOROLA ANALOG IC DEVICE DATA
OUTLINE DIMENSIONS
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
–A–
B
FC
S
HGD
J
L
M
16 PL
SEATING
1 8
916
K
PLANE
–T–
M
A
M
0.25 (0.010) T
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
A0.740 0.770 18.80 19.55
B0.250 0.270 6.35 6.85
C0.145 0.175 3.69 4.44
D0.015 0.021 0.39 0.53
F0.040 0.70 1.02 1.77
G0.100 BSC 2.54 BSC
H0.050 BSC 1.27 BSC
J0.008 0.015 0.21 0.38
K0.110 0.130 2.80 3.30
L0.295 0.305 7.50 7.74
M0 10 0 10
S0.020 0.040 0.51 1.01
____
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
1 8
16 9
SEATING
PLANE
F
J
M
RX 45
_
G
8 PLP
–B–
–A–
M
0.25 (0.010) B S
–T–
D
K
C
16 PL
S
B
M
0.25 (0.010) A S
T
DIM MIN MAX MIN MAX
INCHESMILLIMETERS
A9.80 10.00 0.386 0.393
B3.80 4.00 0.150 0.157
C1.35 1.75 0.054 0.068
D0.35 0.49 0.014 0.019
F0.40 1.25 0.016 0.049
G1.27 BSC 0.050 BSC
J0.19 0.25 0.008 0.009
K0.10 0.25 0.004 0.009
M0 7 0 7
P5.80 6.20 0.229 0.244
R0.25 0.50 0.010 0.019
____
P SUFFIX
PLASTIC PACKAGE
CASE 648–08
ISSUE R
D SUFFIX
PLASTIC PACKAGE
CASE 751B–05
(SO–16)
ISSUE J
MC3487
6MOTOROLA ANALOG IC DEVICE DATA
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MC3487/D
*MC3487/D*
◊
