MC1488
Quad Line EIA−232D Driver
The MC1488 is a monolithic quad line driver designed to interface
data terminal equipment with data communications equipment in
conformance with the specifications of EIA Standard No. EIA−232D.
Features
• Current Limited Output
±10 mA typical
• Power−Off Source Impedance
300 minimum
• Simple Slew Rate Control with External Capacitor
• Flexible Operating Supply Range
• Compatible with All ON Semiconductor MDTL and MTTL Logic
Families
• Pb−Free Packages are Available
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14
1
1
SOIC−14
D SUFFIX
CASE 751A
PDIP−14
P SUFFIX
CASE 646
Line Driver
MC1488
MDTL Logic Input
Interconnecting
Cable
Interconnecting
Cable
MDTL Logic Output
Figure 1. Simplified Application
Line Receiver
MC1489
14
1
SOEIAJ−14
M SUFFIX
CASE 965
PIN CONNECTIONS
V
Input A
Output A
Input B1
Input B2
Output B
Gnd
1
EE
2
3
4
5
6
7
14
13
12
11
10
9
8
V
CC
Input D1
Input D2
Output D
Input C1
Input C2
Output C
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 8 of this data sheet.
Semiconductor Components Industries, LLC, 2004
September, 2004 − Rev. 7
*For additional information on our Pb−Free strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
1 Publication Order Number:
MC1488/D
14
V
CC
Pins 4, 9, 12 or 2
Input
Input
Pins 5, 10, 13
GND 7
VEE 1
10 k
MC1488
8.2 k
3.6 k
Figure 2. Circuit Schematic
(1/4 of Circuit Shown)
6.2 k
70
7.0 k 70
300
Output
Pins 6, 8, 11 or 3
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MC1488
MAXIMUM RATINGS (T
Power Supply Voltage V
Input Voltage Range V
= + 25°C, unless otherwise noted.)
A
Rating Symbol
Value Unit
CC
V
EE
IR
+ 15
− 15
− 15 VIR
Vdc
Vdc
7.0
Output Signal Voltage V
Power Derating (Package Limitation, SO−14 and Plastic Dual−In−Line Package)
Derate above T
= + 25°C
A
1/R
Operating Ambient Temperature Range T
Storage Temperature Range T
O
P
D
JA
A
stg
± 15 Vdc
1000
6.7
mW
mW/°C
0 to + 75 °C
− 65 to + 175 °C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously . If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
ELECTRICAL CHARACTERISTICS (V
= + 9.0 ± 1% Vdc, VEE = − 9.0 ± 1% Vdc, TA = 0 to 75°C, unless otherwise noted.)
CC
Characteristic Symbol Min Typ Max Unit
Input Current − Low Logic State (VIL = 0) I
Input Current − High Logic State (VIH = 5.0 V) I
Output Voltage − High Logic State
(V
= 0.8 Vdc, RL = 3.0 k , VCC = + 9.0 Vdc, VEE = − 9.0 Vdc)
IL
= 0.8 Vdc, RL = 3.0 k , VCC = + 13.2 Vdc, VEE = − 13.2 Vdc)
(V
IL
Output Voltage − Low Logic State
= 1.9 Vdc, RL = 3.0 k , VCC = + 9.0 Vdc, VEE = − 9.0 Vdc)
(V
IH
(V
= 1.9 Vdc, RL = 3.0 k , VCC = + 13.2 Vdc, VEE = − 13.2 Vdc)
IH
Positive Output Short−Circuit Current, Note 1 I
Negative Output Short−Circuit Current, Note 1 I
Output Resistance (VCC = VEE = 0, VO = ± 2.0 V) r
Positive Supply Current (RI = ∞)
(V
= 1.9 Vdc, VCC = + 9.0 Vdc)
IH
= 0.8 Vdc, VCC = + 9.0 Vdc)
(V
IL
= 1.9 Vdc, VCC = + 12 Vdc)
(V
IH
(V
= 0.8 Vdc, VCC = + 12 Vdc)
IL
= 1.9 Vdc, VCC = + 15 Vdc)
(V
IH
= 0.8 Vdc, VCC = + 15 Vdc)
(V
IL
Negative Supply Current (RL = ∞)
(V
= 1.9 Vdc, VEE = − 9.0 Vdc)
IH
= 0.8 Vdc, VEE = − 9.0 Vdc)
(V
IL
(V
= 1.9 Vdc, VEE = − 12 Vdc)
IH
= 0.8 Vdc, VEE = − 12 Vdc)
(V
IL
(V
= 1.9 Vdc, VEE = − 15 Vdc)
IH
= 0.8 Vdc, VEE = − 15 Vdc)
(V
IL
Power Consumption
(V
= 9.0 Vdc, VEE = − 9.0 Vdc)
CC
= 12 Vdc, VEE = − 12 Vdc)
(V
CC
SWITCHING CHARACTERISTICS (V
= + 9.0 ± 1% Vdc, VEE = − 9.0 ± 1% Vdc, TA = + 25°C.)
CC
Propagation Delay Time (zI = 3.0 k and 15 pF) t
Fall Time (zI = 3.0 k and 15 pF) t
Propagation Delay Time (zI = 3.0 k and 15 pF) t
Rise Time (zI = 3.0 k and 15 pF) t
V
V
OS +
OS −
I
CC
I
EE
P
PLH
THL
PHL
TLH
IL
IH
OH
OL
o
C
− 1.0 1.6 mA
− − 10 A
Vdc
+ 6.0
+ 9.0
+ 7.0
+ 10.5
−
−
Vdc
− 6.0
− 9.0
− 7.0
− 10.5
−
−
+ 6.0 + 10 + 12 mA
− 6.0 − 10 − 12 mA
300 − − Ohms
mA
−
−
−
−
−
−
−
−
−
−
−
−
+ 15
+ 4.5
+ 19
+ 5.5
−
−
− 13
−
− 18
−
−
−
+ 20
+ 6.0
+ 25
+ 7.0
+ 34
+ 12
− 17
− 500
− 23
− 500
− 34
− 2.5
mA
A
mA
A
mA
mA
mW
−
−
−
−
333
576
− 275 350 ns
− 45 75 ns
− 110 175 ns
− 55 100 ns
1. Maximum Package Power Dissipation may be exceeded if all outputs are shorted simultaneously.
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