MC3487D [MOTOROLA]
QUAD EIA-422 LINE DRIVER WITH THREE-STATE OUTPUTS; 具有三态输出QUAD EIA- 422线路驱动器
| 型号： | MC3487D |
| 厂家： | 
MOTOROLA |
| 描述： | QUAD EIA-422 LINE DRIVER WITH THREE-STATE OUTPUTS |
| 文件： | 总6页 (文件大小：139K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Order this document by MC3487/D
Motorola 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:
QUAD EIA–422 LINE DRIVER
WITH THREE–STATE
OUTPUTS
SEMICONDUCTOR
TECHNICAL DATA
• Four Independent Driver Chains
• Three–State Outputs
• PNP High Impedance Inputs (PIA Compatible)
• Fast Propagation Times (Typical 15 ns)
• TTL Compatible
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO–16)
• Single 5.0 V Supply Voltage
• Output Rise and Fall Times Less Than 20 ns
• DS 3487 Provides Second Source
P SUFFIX
PLASTIC PACKAGE
CASE 648
Driver Block Diagram
PIN CONNECTIONS
Non–Inverting
16
V
CC
Input A
1
Input
Outputs
15 Input D
2
3
Outputs A
14
Outputs D
A/B Control
4
5
6
13
Inverting
12 C/D Control
11
Outputs B
Outputs C
10
9
Input B
Gnd
7
8
Output
Control
Input C
TRUTH TABLE
Input
Control Input
Non–Inverting Output
Inverting Output
H
L
X
H
H
L
H
L
Z
L
H
Z
ORDERING INFORMATION
Operating
Temperature Range
Device
Package
L = Low Logic State
H = High Logic State
X = Irrelevant
MC3487P
MC3487D
Plastic DIP
SO–16
T
A
= 0 to +70°C
Z = Third–State (High Impedance)
Motorola, Inc. 1995
MC3487
MAXIMUM RATINGS
Rating
Symbol
Value
8.0
Unit
Vdc
Vdc
°C
Power Supply Voltage
V
CC
Input Voltage
V
I
5.5
Operating Ambient Temperature Range
Operating Junction Temperature Range
Storage Temperature Range
T
A
0 to +70
150
T
J
°C
T
stg
–65 to +150
°C
ELECTRICAL CHARACTERISTICS (Unless otherwise noted, specifications apply 4.75 V
Typical values measured at V = 5.0 V, and T = 25°C.)
V
CC
5.25 V and 0°C
T
A
70°C.
CC
A
Characteristic
Input Voltage – Low Logic State
Input Voltage – High Logic State
Input Current – Low Logic State
Symbol
Min
–
Typ
–
Max
0.8
Unit
Vdc
Vdc
µA
V
IL
IH
IL
V
2.0
–
–
–
I
–
– 400
(V = 0.5 V)
IL
Input Current – High Logic State
I
IH
µA
(V = 2.7 V)
–
–
–
–
+ 50
+ 100
IH
(V = 5.5 V)
IH
Input Clamp Voltage
(I = –18 mA)
IK
V
–
–
–
–
–
– 1.5
0.5
V
V
IK
Output Voltage – Low Logic State
(I = 48 mA)
V
–
OL
OH
OS
OL
Output Voltage – High Logic State
(I = –20 mA)
V
2.5
– 40
–
V
OH
Output Short–Circuit Current
I
– 140
mA
µA
(V = 2.0 V, Note 1)
IH
Output Leakage Current – Hi–Z State
I
OL(Z)
(V = 0.5 V, V
= 0.8 V)
= 0.8 V)
–
–
–
–
± 100
± 100
IL IL(Z)
(V = 2.7 V, V
IH IL(Z)
Output Leakage Current – Power OFF
I
µA
OL(off)
(V
OH
(V
OL
= 6.0 V, V
= –0.25 V, V
CC
= 0 V)
= 0 V)
–
–
–
–
+ 100
– 100
CC
Output Offset Voltage Difference (Note 2)
Output Differential Voltage (Note 2)
V
– V
OD
–
2.0
–
–
–
–
± 0.4
–
V
V
OS
OS
V
Output Differential Voltage Difference (Note 2)
∆V
OD
± 0.4
V
Power Supply Current
(Control Pins = Gnd, Note 3)
(Control Pins = 2.0 V)
mA
I
I
–
–
–
–
105
85
CCX
CC
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 (V
= 5.0 V, T = 25°C, unless otherwise noted.)
A
CC
Characteristic
Symbol
Min
Typ
Max
Unit
Propagation Delay Times
High to Low Output
ns
t
t
–
–
–
–
20
20
PHL
PLH
Low to High Output
Output Transition Times – Differential
High to Low Output
ns
ns
t
t
–
–
–
–
20
20
THL
TLH
Low to High Output
Propagation Delay – Control to Output
(R = 200 Ω, C = 50 pF)
t
t
–
–
–
–
–
–
–
–
25
25
30
30
L
L
PHZ(E)
PLZ(E)
PZH(E)
(R = 200 Ω, C = 50 pF)
t
L
L
L
(R = ∞, C = 50 pF)
L
(R = 200 Ω, C = 50 pF)
t
PZL(E)
L
L
2
MOTOROLA ANALOG IC DEVICE DATA
MC3487
Figure 1. Three–State Enable Test Circuit
and Waveforms
3.0 V or Gnd
Input
To Scope
Output
To Scope (Input)
Inv
Output
Open for t
PZH(E)
Test Only
Pulse generator characteristics
= 50
Z
Ω
o
PRR = 1.0 MHz
50% Duty Cycle
5.0 V
Non–Inv
Output
200
t
, t
5 ns
TLH THL
C
50 pF
L
Control
1N3064
or Equivalent
50
Pulse
Generator
1.0 k
Open for
t
Test Only
PZL(E)
C
Includes Probe and
L
Jig Capacitance
3.0 V
0
3.0 V
0
Control
Input
Control
Input
1.5 V
1.5 V
t
PZL(E)
t
PHZ(E)
1.5 V
Output
Output
V
OH
0.5 V
V
OL
Output
Output
0 V
1.5 V
1.5 V
t
PZH(E)
V
OH
≈
t
PLZ(E)
1.5 V
0.5 V
0 V
V
OL
0 V
Figure 2. Propagation Delay Times Input to
Output Waveforms and Test Circuit
Scope
(Output)
5.0 V
Scope
(Input)
Inv
Output
R
= 200 Ω
L
1/4
MC3487
51
Pulse
Generator
Non–Inv
Output
1N914 or
Equivalent
C
= 50 pF
L
Pulse generator characteristics
= 50
PRR = 1.0 MHz
50% Duty Cycle
Control
3.0 V
Z
Ω
o
C
includes probe
L
t
, t
5 ns
TLH THL
and jig capacitance
3.0 V
0 V
Input
1.5 V
1.5 V
t
t
PHL
PLH
V
OH
1.5 V
1.5 V
Output
V
OL
0 V
t
PHL
t
PLH
V
OH
Output
1.5 V
1.5 V
V
OL
0 V
3
MOTOROLA ANALOG IC DEVICE DATA
MC3487
Figure 3. Output Transition Times Test Circuit and Waveforms
Scope
Input
3.0 V
Input
Scope
Output
(Differential)
1/4
MC3487
R =
L
C
15 pF
L
100
Ω
0 V
51
t
t
THL
TLH
C
L
C
L
90%
3.0 V
includes probe
Output
(Differential)
and jig capacitance
Pulse generator characteristics
= 50
PRR = 1.0 MHz
50% Duty Cycle
10%
Z
Ω
o
t
, t
5 ns
TLH THL
Figure 5. Output Sink Current versus
Output Voltage
Figure 4. Output Current versus Output Voltage
80
70
60
50
40
30
20
80
70
V
= 5.0 V
CC
= 25
60
50
40
30
20
T
°C
A
V
V
V
= 5.25 V
= 5.0 V
(Typical)
(Typical)
CC
CC
CC
= 4.75 V
T
= 25°C
A
10
0
10
0
0
1.0
2.0
, OUTPUT VOLTAGE (V)
3.0
4.0
0
100
200
300
400
500
600
700
800
V
V
, OUTPUT VOLTAGE–LOW (mV)
OH
OL
4
MOTOROLA ANALOG IC DEVICE DATA
MC3487
OUTLINE DIMENSIONS
D SUFFIX
PLASTIC PACKAGE
CASE 751B–05
(SO–16)
–A–
ISSUE J
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
16
1
9
8
–B–
P 8 PL
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
M
S
0.25 (0.010)
B
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.
G
MILLIMETERS
INCHES
DIM
A
B
C
D
MIN
9.80
3.80
1.35
0.35
0.40
MAX
10.00
4.00
1.75
0.49
1.25
MIN
MAX
0.393
0.157
0.068
0.019
0.049
F
0.386
0.150
0.054
0.014
0.016
R X 45
K
C
F
G
J
K
M
P
R
1.27 BSC
0.050 BSC
–T–
SEATING
PLANE
0.19
0.10
0
0.25
0.25
7
0.008
0.004
0
0.009
0.009
7
J
M
D
16 PL
5.80
0.25
6.20
0.50
0.229
0.010
0.244
0.019
M
S
S
0.25 (0.010)
T
B
A
P SUFFIX
PLASTIC PACKAGE
CASE 648–08
ISSUE R
NOTES:
–A–
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.
16
1
9
B
8
INCHES
MILLIMETERS
DIM
A
B
C
D
F
G
H
J
K
L
M
S
MIN
MAX
0.770
0.270
0.175
0.021
0.70
MIN
18.80
6.35
3.69
0.39
1.02
2.54 BSC
1.27 BSC
0.21
MAX
19.55
6.85
4.44
0.53
1.77
F
0.740
0.250
0.145
0.015
0.040
0.100 BSC
0.050 BSC
0.008
C
L
S
SEATING
PLANE
–T–
K
M
0.015
0.130
0.305
10
0.38
3.30
7.74
10
H
J
0.110
0.295
0
2.80
7.50
0
G
D 16 PL
0.25 (0.010)
0.020
0.040
0.51
1.01
M
M
T
A
5
MOTOROLA ANALOG IC DEVICE DATA
MC3487
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