September 2005
DS16F95QML
EIA-485/EIA-422A Differential Bus Transceiver
The driver is designed to accommodate loads of up to 60 mA
of sink or source current and features positive and negative
current limiting in addition to thermal shutdown for protection
from line fault conditions.
General Description
The DS16F95 Differential Bus Transceiver is a monolithic
integrated circuit designed for bidirectional data communica-
tion on balanced multipoint bus transmission lines. The
transceiver meets EIA standard RS-485 as well as RS-422A.
The DS16F95 can be used in transmission line applications
employing the DS96F172 and the DS96F174 quad differen-
tial line drivers and the DS96F173 and DS96F175 quad
differential line receivers.
The DS16F95 offers improved performance due to the use
of state-of-the-art L-FAST bipolar technology. The L-FAST
technology allows for higher speeds and lower currents by
utilizing extremely short gate delay times. Thus, the
DS16F95QML features lower power, extended temperature
range and improved specifications.
The DS16F95 combines a TRI-STATE® differential input line
receiver, both of which operate from a single 5.0V power
supply. The driver and receiver have an active Enable that
can be externally connected to function as a direction con-
trol. The driver differential outputs and the receiver differen-
tial inputs are internally connected to form differential input/
output (I/O) bus ports that are designed to offer minimum
loading to the bus whenever the driver is disabled or when
VCC = 0V. These ports feature wide positive and negative
common mode voltage ranges, making the device suitable
for multipoint applications in noisy environments.
Features
n Radiation features DS16F95 guaranteed to 300k rd(Si)
n Meets EIA-485 and EIA-422A
n Meets SCSI-1 (5 MHZ) specifications
n Designed for multipoint transmission
n Wide positive and negative input/output bus voltage
ranges
n Thermal shutdown protection
n Driver positive and negative current-limiting
n High impedance receiver input
n Receiver input hysteresis of 50 mV typical
n Operates from single 5.0V supply
n Reduced power consumption
n Pin compatible with DS3695 and SN75176A
Ordering Information
NS PART NUMBER
DS16F95E/883
SMD PART NUMBER
5962–89615012A
5962–8961501PA
5962–8961501VPA
5962F8961501QPA
300k rd(Si)
NS PACKAGE NUMBER
PACKAGE DISCRIPTION
20LD LCC
E20A
J08A
J08A
DS16F95J/883
8LD CERDIP
DS16F95J-QMLV
8LD CERDIP
DS16F95JFQML
DS16F95JFQMLV
J08A
J08A
8LD CERDIP
5962F8961501VPA
300k rd(Si)
8LDS CERDIP
DS16F95W-SMD
DS16F95W/883
5962–8961501HA
W10A
W10A
W10A
10LD CERPACK
10LD CERPACK
10LD CERPACK
DS16F95W-QMLV
5962–8961501VHA
5962F8961501QHA
300k rd(Si)
DS16F95WFQML
DS16F95WFQMLV
W10A
W10A
10LD CERPACK
10LD CERPACK
5962F8961501VHA
300k rd(Si)
DS16F95WG/883
5962–8961501QXA
5962–8961501VXA
5962F8961501QXA
300k rd(Si)
WG10A
WG10A
10LD Ceramic SOIC
10LD Ceramic SOIC
DS16F95WG-QMLV
DS16F95WGFQML
DS16F95WGFQMLV
WG10A
WG10A
10LD Ceramic SOIC
10LD Ceramic SOIC
5962F8961501VXA
300k rd(Si)
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 2005 National Semiconductor Corporation
DS201425
www.national.com
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