SN55LBC180 Datasheet, PDF (1/24 Pages) Texas Instruments – LOW-POWER RS-485 LINE DRIVER AND RECEIVER PAIRS

SN55LBC180
SN65LBC180
D−14
RSA−16
SN75LBC180
N−14
www.ti.com................................................................................................................................................... SLLS174G – FEBRUARY 1994 – REVISED APRIL 2009
LOW-POWER RS-485 LINE DRIVER AND RECEIVER PAIRS
FEATURES
1
•2 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
DESCRIPTION
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 OR N PACKAGE
(TOP VIEW)
NC ₁
R2
RE 3
DE 4
D5
GND 6
GND 7
14 VCC
13 V_CC
12 A
11 B
10 Z
9Y
8 NC
RSA PACKAGE
(TOP VIEW)
16 15 14 13
NC 1
12 A
R2
11 B
RE ³
10 Z
DE
4
9
5678
Y
NC − No internal connection
Pins 6 and 7 are connected together internally
Pins 13 and 14 are connected together internally
logic diagram (positive logic)
4
DE
5
D
3
RE
2
R
9
Y
10
Z
12
A
11
B
this deviceinfo section is for space between the para and table
T_A
0°C to 70°C
–40°C to 85°C
–55°C to 125°C
ORDERING INFORMATION
PACKAGE
PDIP
SOIC
QFN
PDIP
SOIC
QFN
QFN
PART NUMBER
SN75LBC180N
SN75LBC180D
SN75LBC180RSA
SN65LBC180N
SN65LBC180D
SN65LBC180RSA
SN55LBC180RSA
PART MARKING
SN75LBC180N
7LB180
LB180
65LBC180N
6LB180
BL180
SN55LBC180
1
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.
2
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