Order this document by MC75172B/D
MC75172B
MC75174B
Quad EIA-485 Line Drivers
with Three-State Outputs
The Motorola MC75172B/174B Quad Line drivers are differential high
speed drivers designed to comply with the EIA–485 Standard. Features
include three–state outputs, thermal shutdown, and output current limiting in
both directions. These devices also comply with EIA–422–A, and CCITT
Recommendations V.11 and X.27.
The MC75172B/174B are optimized for balanced multipoint bus
transmission at rates in excess of 10 MBPS. The outputs feature wide
common mode voltage range, making them suitable for party line
applications in noisy environments. The current limit and thermal shutdown
features protect the devices from line fault conditions. These devices offer
optimum performance when used with the MC75173 and MC75175 line
receivers.
Both devices are available in 16–pin plastic DIP and 20–pin wide body
surface mount packages.
• Meets EIA–485 Standard for Party Line Operation
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QUAD EIA–485 LINE DRIVERS
SEMICONDUCTOR
TECHNICAL DATA
P SUFFIX
PLASTIC PACKAGE
CASE 648
Meets EIA–422–A and CCITT Recommendations V.11 and X.27
Operating Ambient Temperature: –40°C to +85°C
DW SUFFIX
PLASTIC PACKAGE
CASE 751D
(SO–20L)
High Impedance Outputs
Common Mode Output Voltage Range: –7 to 12 V
Positive and Negative Current Limiting
Transmission Rates in Excess of 10 MBPS
ORDERING INFORMATION
Thermal Shutdown at 150°C Junction Temperature, (± 20°C)
ā
Single 5.0 V Supply
Device
Pin Compatible with TI SN75172/4 and NS µA96172/4
Operating
Temperature Range
MC75172BDW
Interchangeable with MC3487 and AM26LS31 for EIA–422–A
Applications
Package
SO–20L
TA = – 40° to +85°C
MC75174BDW
MC75174BP
SO–20L
Plastic DIP
PIN CONNECTIONS
MC75172B
MC75174B
20 VCC
1A 1
16 VCC 1A 1
1Y 2
19 4A
1Y 2
15 4A
1Y 2
19 4A
14 4Y
NC 3
18 4Y
1Z 3
14 4Y NC 3
18 4Y
En 4
13 4Z
1Z 4
17 NC
13 4Z
1Z 4
17 NC
2Z 5
12 En
En 5
16 4Z
En 4
12
2Z 5
11 3Z
2Z 6
15 En
2Y 6
En 5
12
2Z 6
16 4Z
2Y 6
12 En
34
11 3Z
2A 7
10 3Y
NC 7
14 3Z
2A 7
10 3Y
Gnd 8
9 3A
2Y 8
13 NC
Gnd 8
9 3A
2A 9
12 3Y
Gnd 10
11 3A
1A 1
16 VCC 1A 1
1Y 2
15 4A
1Z 3
P Package
NC 7
15 En
34
14 3Z
2Y 8
13 NC
2A 9
12 3Y
Gnd 10
11 3A
P Package
DW Package
DW Package
© Motorola, Inc. 1996
MOTOROLA ANALOG IC DEVICE DATA
20 VCC
Rev 1
1
