Quad Line 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 Ω mininum
•Simple Slew Rate Control with External Capacitor
•Flexible Operating Supply Range
•Compatible with All Motorola MDTL and MTTL Logic Families
ORDERING INFORMATION
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Operating |
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Device |
Temperature Range |
Package |
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MC1488P |
TA = 0 to + 75°C |
Plastic |
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MC1488D |
SO±14 |
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Simplified Application
Line Driver |
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Interconnecting |
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Line Receiver |
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MC1488 |
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Cable |
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MC1489 |
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MDTL Logic Input |
Interconnecting |
MDTL Logic Output |
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Cable |
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Order this document by MC1488/D
MC1488
QUAD MDTL LINE DRIVER
EIA±232D
SEMICONDUCTOR
TECHNICAL DATA
P SUFFIX
PLASTIC PACKAGE
CASE 646
D SUFFIX
PLASTIC PACKAGE
CASE 751A (SO±14)
PIN CONNECTIONS
VEE |
1 |
14 |
VCC |
Input A |
2 |
13 |
Input D1 |
Output A |
3 |
12 |
Input D2 |
Input B1 |
4 |
11 |
Output D |
Input B2 |
5 |
10 |
Input C1 |
Output B |
6 |
9 |
Input C2 |
Gnd |
7 |
8 |
Output C |
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Circuit Schematic |
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(1/4 of Circuit Shown) |
VCC 14 |
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8.2 k |
6.2 k |
Pins 4, 9, 12 or 2 |
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Input |
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Input |
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Pins 5, 10, 13 |
70 |
300
Output Pins 6, 8, 11 or 3
3.6 k
GND 7 
10 k
7.0 k |
70 |
VEE 1
Motorola, Inc. 1996 |
Rev 3 |
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MC1488 |
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MAXIMUM RATINGS (TA = + 25°C, unless otherwise noted.) |
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Rating |
Symbol |
Value |
Unit |
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Power Supply Voltage |
VCC |
+ 15 |
Vdc |
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VEE |
± 15 |
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Input Voltage Range |
VIR |
± 15 p VIR p |
Vdc |
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7.0 |
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Output Signal Voltage |
VO |
± 15 |
Vdc |
Power Derating (Package Limitation, SO±14 |
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and Plastic Dual±In±Line Package) |
PD |
1000 |
mW |
Derate above TA = + 25°C |
1/RqJA |
6.7 |
mW/°C |
Operating Ambient Temperature Range |
TA |
0 to + 75 |
°C |
Storage Temperature Range |
Tstg |
± 65 to + 175 |
°C |
ELECTRICAL CHARACTERISTICS (VCC = + 9.0 ± 1% Vdc, VEE = ± 9.0 ± 1% Vdc, TA = 0 to 75°C, unless otherwise noted.)
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Characteristic |
Symbol |
Min |
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Typ |
Max |
Unit |
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Input Current ± Low Logic State (VIL = 0) |
IIL |
± |
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1.0 |
1.6 |
mA |
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Input Current ± High Logic State (VIH = 5.0 V) |
IIH |
± |
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± |
10 |
mA |
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Output Voltage ± High Logic State |
VOH |
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Vdc |
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(VIL = 0.8 Vdc, RL = 3.0 kW , VCC = + 9.0 Vdc, VEE = ± 9.0 Vdc) |
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+ 6.0 |
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+ 7.0 |
± |
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(VIL = 0.8 Vdc, RL = 3.0 kW , VCC = + 13.2 Vdc, VEE = ± 13.2 Vdc) |
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+ 9.0 |
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+ 10.5 |
± |
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Output Voltage ± Low Logic State |
VOL |
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Vdc |
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(VIH = 1.9 Vdc, RL = 3.0 kW , VCC = + 9.0 Vdc, VEE = ± 9.0 Vdc) |
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± 6.0 |
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± 7.0 |
± |
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(VIH = 1.9 Vdc, RL = 3.0 kW , VCC = + 13.2 Vdc, VEE = ± 13.2 Vdc) |
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± 9.0 |
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± 10.5 |
± |
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Positive Output Short±Circuit Current, Note 1 |
IOS + |
+ 6.0 |
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+ 10 |
+ 12 |
mA |
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Negative Output Short±Circuit Current, Note 1 |
IOS ± |
± 6.0 |
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± 10 |
± 12 |
mA |
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Output Resistance (VCC = VEE = 0, VO = ± 2.0 V) |
ro |
300 |
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± |
± |
Ohms |
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Positive Supply Current (RI = ∞ ) |
ICC |
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mA |
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(VIH = 1.9 Vdc, VCC = + 9.0 Vdc) |
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± |
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+ 15 |
+ 20 |
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(VIL = 0.8 Vdc, VCC = + 9.0 Vdc) |
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± |
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+ 4.5 |
+ 6.0 |
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(VIH = 1.9 Vdc, VCC = + 12 Vdc) |
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± |
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+ 19 |
+ 25 |
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(VIL = 0.8 Vdc, VCC = + 12 Vdc) |
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+ 5.5 |
+ 7.0 |
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(VIH = 1.9 Vdc, VCC = + 15 Vdc) |
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± |
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± |
+ 34 |
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(VIL = 0.8 Vdc, VCC = + 15 Vdc) |
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± |
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± |
+ 12 |
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Negative Supply Current (RL = ∞ ) |
IEE |
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(VIH = 1.9 Vdc, VEE = ± 9.0 Vdc) |
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± |
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± 13 |
± 17 |
mA |
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(VIL = 0.8 Vdc, VEE = ± 9.0 Vdc) |
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± |
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± |
± 500 |
mA |
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(VIH = 1.9 Vdc, VEE = ± 12 Vdc) |
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± |
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± 18 |
± 23 |
mA |
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(VIL = 0.8 Vdc, VEE = ± 12 Vdc) |
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± |
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± |
± 500 |
mA |
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(VIH = 1.9 Vdc, VEE = ± 15 Vdc) |
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± |
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± 34 |
mA |
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(VIL = 0.8 Vdc, VEE = ± 15 Vdc) |
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± |
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± 2.5 |
mA |
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Power Consumption |
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PC |
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mW |
(VCC = 9.0 Vdc, VEE = ± 9.0 Vdc) |
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± |
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± |
333 |
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(VCC = 12 Vdc, VEE = ± 12 Vdc) |
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± |
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± |
576 |
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SWITCHING CHARACTERISTICS (VCC = + 9.0 ± 1% Vdc, VEE = ± 9.0 ± 1% Vdc, TA = + 25°C.) |
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Propagation Delay Time |
(zI = 3.0 k and 15 pF) |
tPLH |
± |
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275 |
350 |
ns |
Fall Time |
(zI = 3.0 k and 15 pF) |
tTHL |
± |
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45 |
75 |
ns |
Propagation Delay Time |
(zI = 3.0 k and 15 pF) |
tPHL |
± |
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110 |
175 |
ns |
Rise Time |
(zI = 3.0 k and 15 pF) |
tTLH |
± |
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55 |
100 |
ns |
NOTE: 1. Maximum Package Power Dissipation may be exceeded if all outputs are shorted simultaneously.
2 |
MOTOROLA ANALOG IC DEVICE DATA |
MC1488
CHARACTERISTIC DEFINITIONS
Figure 1. Input Current |
Figure 2. Output Voltage |
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9.0 V |
±9.0 V |
9.0 V |
±9.0 V |
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14 |
1 |
14 |
1 |
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1.9 V |
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2 |
5 |
2 |
3 |
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VOL |
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3.0 k |
4 |
10 |
4 |
6 |
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9 |
VOH |
9 |
8 |
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12 |
13 |
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12 |
11 |
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0.8 V |
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7 |
VOH |
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7 |
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VOL |
IIL
IIH
5.0 V
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Figure 3. Output Short±Circuit Current |
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Figure 4. Output Resistance (Power Off) |
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VCC |
VEE |
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14 |
7 |
1 |
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1.9 V |
14 |
1 |
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2 |
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3 |
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VO |
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2 |
3 |
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4 |
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6 |
± 2.0 Vdc |
IOS + |
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4 |
6 |
IOS ± |
5 |
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8 |
± 6.6 mA Max |
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9 |
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9 |
8 |
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IOS ± |
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11 |
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10 |
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12 |
11 |
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12 |
13 |
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0.8 V |
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7 |
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Figure 5. Power Supply Currents |
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Figure 6. Switching Response |
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VCC |
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ein |
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VO |
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1.9 V |
ICC |
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3.0 k |
15 pF |
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2 |
14 |
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VIH |
4 |
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3.0 V |
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7 |
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9 |
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1.5 V |
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VIL |
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0 V |
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e |
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12 |
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in |
tPHL |
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1 |
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tPLH |
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VO |
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0.8 V |
IEE |
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50% |
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tTHL |
tTLH |
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tTHL and tTLH Measured 10% to 90% |
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VEE |
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MOTOROLA ANALOG IC DEVICE DATA |
3 |
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