MC1489AM [MOTOROLA]
QUAD LINE RECEIVER, PDSO14, EIAJ, SOIC-14;
| 型号： | MC1489AM |
| 厂家： | 
MOTOROLA |
| 描述： | QUAD LINE RECEIVER, PDSO14, EIAJ, SOIC-14 光电二极管 接口集成电路 |
| 文件： | 总8页 (文件大小：156K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Order this document by MC1489/D
The MC1489 monolithic quad line receivers are designed to interface data
terminal equipment with data communications equipment in conformance
with the specifications of EIA Standard No. EIA–232D.
QUAD MDTL
LINE RECEIVERS
EIA–232D
• Input Resistance – 3.0 k to 7.0 kΩ
• Input Signal Range – ± 30 V
• Input Threshold Hysteresis Built In
• Response Control
SEMICONDUCTOR
TECHNICAL DATA
a) Logic Threshold Shifting
b) Input Noise Filtering
P SUFFIX
PLASTIC PACKAGE
CASE 646
ORDERING INFORMATION
Operating
D SUFFIX
PLASTIC PACKAGE
CASE 751A
Temperature Range
Device
Package
Plastic
MC1489P, AP
MC1489D, AD
(SO–14)
T
= 0 to + 75°C
A
SO–14
PIN CONNECTIONS
1
2
3
4
5
6
7
14
V
Input A
CC
Simplified Application
Response
Control A
Input D
13
12
Line Driver
MC1488
Interconnecting
Cable
Line Receiver
MC1489
Response
Control D
Output A
Input B
11 Output D
Response
Control B
Input C
10
9
Response
Control C
Output B
Ground
Interconnecting
Cable
8
Output C
MDTL Logic Output
MDTL Logic Input
Representative Schematic Diagram
(1/4 of Circuit Shown)
14
V
CC
9.0 k
5.0 k
1.7 k
R
F
Response Control 2
3 Output
3.8 k
Input 1
10 k
MC1489 MC1489A
6.7 kΩ 1.6 kΩ
R
F
7 GND
Motorola, Inc. 1996
Rev 5
MC1489, A
MAXIMUM RATINGS (T = + 25°C, unless otherwise noted)
A
Rating
Symbol
Value
10
Unit
Vdc
Vdc
mA
Power Supply Voltage
Input Voltage Range
Output Load Current
V
CC
V
IR
± 30
20
I
L
Power Dissipation (Package Limitation, SO–14
and Plastic Dual In–Line Package)
P
1000
6.7
mW
mW/°C
D
Derate above T = + 25°C
1/
θJA
A
Operating Ambient Temperature Range
Storage Temperature Range
T
0 to + 75
°C
°C
A
T
stg
– 65 to + 175
ELECTRICAL CHARACTERISTICS (Response control pin is open.) (V
= + 5.0 Vdc ± 10%, T = 0 to + 75°C, unless otherwise noted)
A
CC
Characteristics
Symbol
Min
Typ
Max
Unit
Positive Input Current
(V = + 25 Vdc)
(V = + 3.0 Vdc)
IH
I
IH
3.6
0.43
–
–
8.3
–
mA
IH
Negative Input Current
(V = – 25 Vdc)
(V = – 3.0 Vdc)
IH
I
IL
– 3.6
– 0.43
–
–
– 8.3
–
mA
IH
Input Turn–On Threshold Voltage
V
IH
Vdc
(T = + 25°C, V
0.45 V)
MC1489
MC1489A
1.0
1.75
–
1.95
1.5
2.25
A
OL
Input Turn–Off Threshold Voltage
(T = + 25°C, V 2.5 V, I = – 0.5 mA)
V
Vdc
Vdc
IL
MC1489
MC1489A
0.75
0.75
–
0.8
1.25
1.25
A
OH
L
Output Voltage High
(V = 0.75 V, I = – 0.5 mA)
IH
V
OH
2.5
2.5
4.0
4.0
5.0
5.0
L
(Input Open Circuit, I = – 0.5 mA)
L
Output Voltage Low
(V = 3.0 V, I = 10 mA)
IL
V
–
–
–
0.2
– 3.0
16
0.45
– 4.0
26
Vdc
mA
mA
L
OL
OS
CC
Output Short–Circuit Current
I
I
Power Supply Current (All Gates “on,” I
Power Consumption
= 0 mA, V = + 5.0 Vdc)
IH
out
(V = + 5.0 Vdc)
IH
P
–
80
130
mW
C
SWITCHING CHARACTERISTICS (V
Propagation Delay Time
Rise Time
= 5.0 Vdc ± 1%, T = + 25°C, See Figure 1.)
A
CC
(R = 3.9 kΩ)
L
t
–
–
–
–
25
120
25
85
175
50
ns
ns
ns
ns
PLH
(R = 3.9 kΩ)
t
L
TLH
PHL
Propagation Delay Time
(R = 390 kΩ)
L
t
Fall Time
(R = 390 kΩ)
L
t
10
20
THL
TEST CIRCUITS
Figure 1. Switching Response
Figure 2. Response Control Node
5.0 Vdc
V
R
R
L
All diodes
1N3064
or equivalent
R
E
E
in
o
C
L
C
3.0 V
Response Node
1/4
50%
50%
MC1489A
E
t
and t
THL
in
TLH
V
V
O
in
measured
t
PLH
10% – 90%
E
O
t
TLH
t
C, capacitor is for noise filtering.
R, resistor is for threshold shifting.
THL
1.5 V
1.5 V
C
= 15 pF = total parasitic capacitance which includes
L
probe and wiring capacitances
2
MOTOROLA ANALOG IC DEVICE DATA
MC1489, A
TYPICAL CHARACTERISTICS
(V
CC
= 5.0 Vdc, T = +25°C, unless otherwise noted)
A
Figure 3. Input Current
Figure 4. MC1489 Input Threshold
Voltage Adjustment
10
6.0
5.0
4.0
8.0
V
I
E
O
6.0
4.0
R
5.0 k
R
13 k
R
T
R
11 k
T
T
T
2.0
R
V
5.0 V
V
5.0 V
T
V
3.0
2.0
th
th
th
0
–5.0 V
V
th
–2.0
–4.0
–6.0
–8.0
–10
I
I
V
1.0
0
I
V
V
ILH IHL
–25 –20
–15 –10 –5.0
0
5.0
10
15
20
25
–3.0 –2.0 –1.0
0
1.0
2.0
3.0
V
, INPUT VOLTAGE (V)
V , INPUT VOLTAGE (V)
in
I
Figure 5. MC1489A Input Threshold
Voltage Adjustment
Figure 6. Input Threshold Voltage
versus Temperature
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
6.0
5.0
MC1489A V
IH
V
E
in
O
4.0
3.0
2.0
1.0
0
R
11 k
R
T
R
5.0 k
T
T
R
MC1489 V
IH
V
T
th
V
th
5.0 V
–5.0 V
V
th
MC1489 V
IL
MC1489A V
V
V
IL
ILH
IHL
–60
0
+60
C)
+120
–3.0 –2.0 –1.0
0
1.0
2.0
3.0
4.0
V , INPUT VOLTAGE (V)
I
T, TEMPERATURE (°
Figure 7. Input Threshold versus
Power Supply Voltage
2.0
1.0
V
MC1489A
IH
V
V
V
MC1489
MC1489
MC1489A
IH
IL
IL
0
3.0
4.0
5.0
6.0
V
, POWER SUPPLY VOLTAGE (V)
CC
3
MOTOROLA ANALOG IC DEVICE DATA
MC1489, A
APPLICATIONS INFORMATION
General Information
The Electronic Industries Association (EIA) has released
the EIA–232D specification detailing the requirements for the
interface between data processing equipment and data
communications equipment. This standard specifies not only
the number and type of interface leads, but also the voltage
levels to be used. The MC1488 quad driver and its
companion circuit, the MC1489 quad receiver, provide a
complete interface system between DTL or TTL logic levels
and the EIA–232D defined levels. The EIA–232D
requirements as applied to receivers are discussed herein.
The required input impedance is defined as between
3000 Ω and 7000 Ω for input voltages between 3.0 and 25 V
in magnitude; and any voltage on the receiver input in an
open circuit condition must be less than 2.0 V in magnitude.
The MC1489 circuits meet these requirements with a
turn–on voltage of 1.25 V and turn–off of 1.0 V for a typical
hysteresis of 250 mV. The MC1489A has typical turn–on of
1.95 V and turn–off of 0.8 V for typically 1.15 V of hysteresis.
Each receiver section has an external response control
node in addition to the input and output pins, thereby allowing
the designer to vary the input threshold voltage levels. A
resistor can be connected between this node and an external
power supply. Figures 2, 4 and 5 illustrate the input threshold
voltage shift possible through this technique.
This response node can also be used for the filtering of
high frequency, high energy noise pulses. Figures 8 and 9
show typical noise pulse rejection for external capacitors of
various sizes.
These two operations on the response node can be
combined or used individually for many combinations of
interfacing applications. The MC1489 circuits are particularly
useful for interfacing between MOS circuits and MDTL/MTTL
logic systems. In this application, the input threshold voltages
are adjusted (with the appropriate supply and resistor values)
to fall in the center of the MOS voltage logic levels (see
Figure 10).
The response node may also be used as the receiver input
as long as the designer realizes that he may not drive this
node with a low impedance source to a voltage greater than
one diode above ground or less than one diode below
ground. This feature is demonstrated in Figure 11 where two
receivers are slaved to the same line that must still meet the
EIA–232D impedance requirement.
maximum open circuit voltage of one V
.
BE
The receiver shall detect a voltage between – 3.0 and
– 25 V as a Logic “1” and inputs between 3.0 and 25 V as a
Logic “0.” On some interchange leads, an open circuit of
power “OFF” condition (300 Ω or more to ground) shall be
decoded as an “OFF” condition or Logic “1.” For this reason,
the input hysteresis thresholds of the MC1489 circuits are all
above ground. Thus an open or grounded input will cause the
same output as a negative or Logic “1” input.
Device Characteristics
The MC1489 interface receivers have internal feedback
from the second stage to the input stage providing input
hysteresis for noise rejection. The MC1489 input has typical
Figure 8. Typical Turn On Threshold versus
Figure 9. Typical Turn On Threshold versus
Capacitance from Response Control Pin to GND
Capacitance from Response Control Pin to GND
6
6
MC1489A
MC1489
5
5
100 pF
300 pF
500 pF
10 pF
12 pF
100 pF 300 pF
500 pF
4
4
3
2
1
3
2
1
10
100
1000
10,000
10
100
1000
10,000
PW, INPUT PULSE WIDTH (ns)
PW, INPUT PULSE WIDTH (ns)
4
MOTOROLA ANALOG IC DEVICE DATA
MC1489, A
Figure 10. Typical Translator Application –
MOS to DTL or TTL
+ 5.0 Vdc
R
MC1489
MOS
Logic
DTL or TTL
–V
GG
–V
DD
+ 5.0 Vdc
+ 5.0 Vdc
Figure 11. Typical Paralleling of Two MC1489, A Receivers to Meet EIA–232D
V
CC
Response–Control Pin
1/2 MC1489
Output
Input
8.0 k
V
CC
Output
8.0 k
Input
Response–Control Pin
5
MOTOROLA ANALOG IC DEVICE DATA
MC1489, A
OUTLINE DIMENSIONS
P SUFFIX
PLASTIC PACKAGE
CASE 646–06
ISSUE L
NOTES:
1. LEADS WITHIN 0.13 (0.005) RADIUS OF TRUE
POSITION AT SEATING PLANE AT MAXIMUM
MATERIAL CONDITION.
2. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
3. DIMENSION B DOES NOT INCLUDE MOLD
FLASH.
4. ROUNDED CORNERS OPTIONAL.
14
1
8
7
B
INCHES
MILLIMETERS
A
F
DIM
A
B
C
D
F
G
H
J
K
L
M
N
MIN
MAX
0.770
0.260
0.185
0.021
0.070
MIN
18.16
6.10
3.69
0.38
1.02
MAX
19.56
6.60
4.69
0.53
1.78
0.715
0.240
0.145
0.015
0.040
L
C
0.100 BSC
2.54 BSC
0.052
0.008
0.115
0.095
0.015
0.135
1.32
0.20
2.92
2.41
0.38
3.43
J
N
0.300 BSC
7.62 BSC
SEATING
PLANE
K
0
10
0
10
0.015
0.039
0.39
1.01
H
G
D
M
D SUFFIX
PLASTIC PACKAGE
CASE 751A–03
(SO–14)
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
–A–
ISSUE F
14
1
8
7
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
–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.
P 7 PL
M
M
0.25 (0.010)
B
MILLIMETERS
INCHES
G
DIM
A
B
C
D
F
G
J
K
M
P
MIN
8.55
3.80
1.35
0.35
0.40
MAX
8.75
4.00
1.75
0.49
1.25
MIN
MAX
0.344
0.157
0.068
0.019
0.049
F
R X 45
C
0.337
0.150
0.054
0.014
0.016
–T–
SEATING
PLANE
J
M
1.27 BSC
0.050 BSC
K
D 14 PL
0.19
0.10
0
0.25
0.25
7
0.008
0.004
0
0.009
0.009
7
M
S
S
0.25 (0.010)
T
B
A
5.80
0.25
6.20
0.50
0.228
0.010
0.244
0.019
R
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specificallydisclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
datasheetsand/orspecificationscananddovaryindifferentapplicationsandactualperformancemayvaryovertime. Alloperatingparameters,including“Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applicationsintended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
ordeathmayoccur. ShouldBuyerpurchaseoruseMotorolaproductsforanysuchunintendedorunauthorizedapplication,BuyershallindemnifyandholdMotorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and
Opportunity/Affirmative Action Employer.
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
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MC1489/D
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Device MC1489A
Linear RS232 RCVR
The MC1489 monolithic quad line receivers are designed to interface data termina
communications equipment in conformance with the specifications of EIA Standard
Features:
l Input Resistance - 3.0 k to 7.0 kW
l Input Signal Range - 30 V
l Input Threshold Hysteresis Built In
l Response Control a) Logic Threshold Shifting b) Input Noise Filtering
Orderable Parts
Orderable
Part
Short
Desc.
Package Pin
Desc. Count Outline
Case
Action
Status
P
N/A
MC1489AD
Linear SOIC
RS232
RCVR
14
14
751A-03 Active
751A-03 Active
$
N/A
MC1489ADR2 Tape
SOIC
$
and
2 of 2
N/A
N/A
N/A
N/A
N/A
MC1489AM
Linear SOIC
RS232 EIAJ
RCVR
14
14
14
14
14
940A-03 Active
940A-03 Active
940A-03 LifeTime
940A-03 LifeTime
$
$
MC1489AMEL Tape
SOIC
EIAJ
and
Reel
MC1489AML1 Tape
SOIC
EIAJ
and
Reel
MC1489AML2 Tape
SOIC
EIAJ
and
Reel
MC1489AP
Linear PDIP
RS232
646-06
Active
$
RCVR
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