SN65LBC174_16 Datasheet, PDF (1/17 Pages) Texas Instruments – QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS

SN65LBC174, SN75LBC174
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS
SLLS162D – JULY 1993 – REVISED SEPTEMBER 2003
D Meets or Exceeds the Standard EIA-485
D Designed for High-Speed Multipoint
Transmission on Long Bus Lines in Noisy
Environments
D Supports Data Rates up to and Exceeding
Ten Million Transfers Per Second
D Common-Mode Output Voltage Range of
– 7 V to 12 V
D Positive- and Negative-Current Limiting
D Low Power Consumption . . . 1.5 mA Max
(Output Disabled)
D Functionally Interchangeable With SN75174
description
The SN65LBC174 and SN75LBC174 are
monolithic, quadruple, differential line drivers with
3-state outputs. Both devices are designed to
meet the requirements of the Electronics Industry
Association Standard EIA-485. These devices
are optimized for balanced multipoint bus
transmission at data rates up to and exceeding
10 million bits per second. Each driver features
wide positive and negative common-mode output
voltage ranges, current limiting, and thermal-
shutdown protection, making it suitable for
party-line applications in noisy environments.
Both devices are designed using LinBiCMOS,
facilitating ultralow power consumption and
inherent robustness.
Both the SN65LBC174 and SN75LBC174 provide
positive- and negative-current limiting and
thermal shutdown for protection from line fault
conditions on the transmission bus line. These
devices offer optimum performance when used
with the SN75LBC173 or SN75LBC175
quadruple line receivers. The SN65LBC174 and
SN75LBC174 are available in the 16-terminal DIP
package (N) and the 20-terminal wide-body small
outline intergrated circuit (SOIC) package (DW).
N PACKAGE
(TOP VIEW)
1A 1
1Y 2
1Z 3
1,2EN 4
2Z 5
2Y 6
2A 7
GND 8
16 V_CC
15 4A
14 4Y
13 4Z
12 3,4EN
11 3Z
10 3Y
9 3A
1A
1Y
NC
1Z
1,2EN
2Z
NC
2Y
2A
GND
DW PACKAGE
(TOP VIEW)
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
NC – No internal connection
V_CC
4A
4Y
NC
4Z
3,4EN
3Z
NC
3Y
3A
FUNCTION TABLE
(each driver)
INPUT
H
L
X
ENABLE
H
H
L
OUTPUTS
YZ
HL
LH
ZZ
H = high level, L = low level,
X = irrelevant, Z = high impedance (off)
The SN75LBC174 is characterized for operation over the commercial temperature range of 0°C to 70°C. The
SN65LBC174 is characterized over the industrial temperature range of – 40°C to 85°C.
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 Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  2001–2003, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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