DS75154MX National Semiconductor, DS75154MX Datasheet

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DS75154MX

Manufacturer Part Number
DS75154MX
Description
IC LINE RECEIVER QUAD 16-SOIC
Manufacturer
National Semiconductor
Type
Line Receiverr
Datasheet

Specifications of DS75154MX

Number Of Drivers/receivers
0/4
Protocol
RS232
Voltage - Supply
5V or 12V
Mounting Type
Surface Mount
Package / Case
*
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
*DS75154MX

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Quantity
Price
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NS
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KYOCERA
Quantity:
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© 1998 National Semiconductor Corporation
DS75154
Quad Line Receiver
General Description
The DS75154 is a quad monolithic line receiver designed to
satisfy the requirements of the standard interface between
data terminal equipment and data communication equipment
as defined by EIA Standard RS-232C. Other applications are
in relatively short, single-line, point-to-point data transmis-
sion systems and for level translators. Operation is normally
from a single 5V supply; however, a built-in option allows op-
eration from a 12V supply without the use of additional com-
ponents. The output is compatible with most TTL and LS cir-
cuits when either supply voltage is used.
In normal operation, the threshold-control terminals are con-
nected to the V
supplied via the alternate V
vides a wide hysteresis loop which is the difference between
the positive-going and negative-going threshold voltages. In
this mode, if the input voltage goes to zero, the output volt-
age will remain at the low or high level as determined by the
previous input.
For fail-safe operation, the threshold-control terminals are
open. This reduces the hysteresis loop by causing the
Schematic Diagram
Note: When using V
threshold control pins.
CC1
CC1
(pin 15), V
terminal, pin 15, even if power is being
CC2
CC2
(pin 16) may be left open or shorted to V
terminal, pin 16. This pro-
DS005795
negative-going threshold voltage to be above zero. The
positive-going threshold voltage remains above zero as it is
unaffected by the disposition of the threshold terminals. In
the fail-safe mode, if the input voltage goes to zero or an
open-circuit condition, the output will go to the high level re-
gardless of the previous input condition.
Features
n Input resistance, 3 k
n Input threshold adjustable to meet “fail-safe”
n Inverting output compatible with TTL or LS
n Built-in hysteresis for increased noise immunity
n Output with active pull-up for symmetrical switching
n Standard supply voltage — 5V or 12V
CC1
range
requirements without using external components
speeds
. When using V
CC2
, V
CC1
DS005795-1
must be left open or connected to the
to 7 k
over full RS-232C voltage
www.national.com
May 1998

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DS75154MX Summary of contents

Page 1

... V (pin 16) may be left open or shorted to V CC1 CC2 threshold control pins. © 1998 National Semiconductor Corporation DS005795 negative-going threshold voltage to be above zero. The positive-going threshold voltage remains above zero unaffected by the disposition of the threshold terminals. In the fail-safe mode, if the input voltage goes to zero or an open-circuit condition, the output will go to the high level re- gardless of the previous input condition ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Normal Supply Voltage (Pin 15 CC1 Alternate Supply Voltage (Pin 16 CC2 Input Voltage Storage Temperature Range Maximum Power Dissipation (Note 1) at 25˚C ...

Page 3

Switching Characteristics Note 5: The algebraic convention where the most-positive (least-negative) limit is designated as maximum is used in this data sheet for logic and threshold levels only, e.g., when −3V is the maximum, the minimum limit is a more-negative ...

Page 4

DC Test Circuits and Truth Tables Test Measure Open-Circuit Input V OH (Fail-Safe min (Fail-Safe) V T− min (Normal max min ...

Page 5

DC Test Circuits and Truth Tables T Open Open Open Pin 15 Gnd Open Open Pin 15 Pin 15 Pin 15 T Open Pin 15 Open Pin 15 (Continued) DS005795 CC1 CC2 (Pin 15) (Pin 16) 5V Open ...

Page 6

DC Test Circuits and Truth Tables (Continued) Each output is tested separately. FIGURE Test Circuit and Switching Time Waveforms Note 1: The pulse generator has the following characteristics: Z Note 2: C includes probe and jig ...

Page 7

7 ...

Page 8

... National Semiconductor Asia Pacific Customer Fax: +49 (0) 1 80-530 85 86 Response Group Email: europe.support@nsc.com Tel: 65-2544466 Fax: 65-2504466 Tel: +49 (0) 1 80-532 78 32 Email: sea.support@nsc.com Tel: +49 (0) 1 80-534 16 80 National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 ...

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