SN55LBC180
SN65LBC180
SN75LBC180
RSA−16
D−14
N−14
www.ti.com................................................................................................................................................... SLLS174G – FEBRUARY 1994 – REVISED APRIL 2009
LOW-POWER RS-485 LINE DRIVER AND RECEIVER PAIRS
FEATURES
1
RSA PACKAGE
(TOP VIEW)
D OR N PACKAGE
(TOP VIEW)
14
2
13
3
12
4
11
5
10
6
7
9
8
VCC
VCC
A
B
Z
Y
NC
NC
R
RE
DE
16 15 14 13
1
12
2
11
3
4
10
5 6 7 8
NC − No internal connection
Pins 6 and 7 are connected together internally
Pins 13 and 14 are connected together internally
9
A
B
Z
Y
NC
1
D
GND
GND
NC
R
RE
DE
D
GND
GND
NC
NC
VCC
VCC
• Designed for High-Speed Multipoint Data
Transmission Over Long Cables
• Operate With Pulse Durations as Low as 30 ns
• Low Supply Current . . . 5 mA Max
• Meet or Exceed the Requirements of ANSI
Standard RS-485 and ISO 8482:1987(E)
• 3-State Outputs for Party-Line Buses
• Common-Mode Voltage Range of –7 V to 12 V
• Thermal Shutdown Protection Prevents
Driver Damage From Bus Contention
• Positive and Negative Output Current
Limiting
• Pin Compatible With the SN75ALS180
2
logic diagram (positive logic)
DESCRIPTION
4
DE
The SN55LBC180, SN65LBC180 and SN75LBC180
differential driver and receiver pairs are monolithic
integrated circuits designed for bidirectional data
communication over long cables that take on the
characteristics of transmission lines. They are
balanced, or differential, voltage mode devices that
meet or exceed the requirements of industry
standards ANSI RS-485 and ISO 8482:1987(E).
These devices are designed using TI's proprietary
LinBiCMOS™ with the low-power consumption of
CMOS and the precision and robustness of bipolar
transistors in the same circuit.
D
RE
R
9
5
10
3
12
2
11
Y
Z
A
B
this deviceinfo section is for space between the para and table
ORDERING INFORMATION
TA
PACKAGE
PART NUMBER
PART MARKING
PDIP
SN75LBC180N
SN75LBC180N
0°C to 70°C
SOIC
SN75LBC180D
7LB180
QFN
SN75LBC180RSA
LB180
PDIP
–55°C to 125°C
SN65LBC180N
65LBC180N
SOIC
SN65LBC180D
6LB180
QFN
–40°C to 85°C
SN65LBC180RSA
BL180
QFN
SN55LBC180RSA
SN55LBC180
1
2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
LinBiCMOS is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1994–2009, Texas Instruments Incorporated
