DS14C89A
Quad CMOS Receiver
General Description
The DS14C89A, pin-for-pin compatible to the DS1489A/
MC1489A, ia a quad receiver designed to interface data
terminal equipment (DTE) with data circuit-terminating
equipment (DCE). These devices translate levels conform-
ing to EIA-232E and CCITT V.28 standards to TTL/CMOS
logic levels.
The device is fabricated in low threshold CMOS metal gate
technology. The device provides very low power consump-
tion
compared
to
their
bipolar
equivalents:
900
A
(DS14C89A) versus 26 mA (DS1489A).
The DS14C89A provides on chip noise filtering which elimi-
nates the need for external response control filter capacitors.
When replacing the DS1489A with the DS14C89A, the re-
sponse control filter pins can be tied high, low, or not con-
nected.
Features
n
Meets EIA/TIA-232-E and CCITT V.28 Standards
n
Failsafe - Output High for Open Input
n
LOW Power consumption
n
On chip noise filter
n
Available in SOIC Package
Connection Diagram
01110601
Order Number DS14C89AN, DS14C89AM,
See NS Package Number M14A, N14A
May 1998
DS14C89A
Quad
CMOS
Receiver
2004 National Semiconductor Corporation
DS011106
www.national.com
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
CC
+6V
Input Voltage
-30V to +30V
Receiver Output Voltage
(V
CC
) +0.3V to
GND-0.3V
Junction Temperature
+150C
Continuous Power Dissipation
@
+25C (Note 2)
N Package
1513 mW
M Package
1063 mW
Lead Temp.
(Soldering 4 seconds)
+260C
Storage Temp. Range
-65C to +150C
ESD Rating
1.8 kV, Typically 2 kV
(HMB, 1.5 k
, 100 pF)
Recommended Operating
Conditions
Min
Max
Units
V
CC
(GND = 0V)
+4.5
+5.5
V
Operating Free Air Temp. (T
A
)
DS14C89A
0
+75
C
Electrical Characteristics
Over recommended operating conditions, unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
TH
Input High Threshold
1.3
2.7
V
V
TL
Input Low Threshold
0.5
1.9
V
V
HY
Typical Input Hysteresis
1.0
V
I
IN
Input Current
V
IN
= +25V
V
CC
= +4.5V to +5.5V
3.6
8.3
mA
V
IN
= -25V
-3.6
-8.3
mA
V
IN
= +3V
0.43
1.0
mA
V
IN
= -3V
-0.43
-1.0
mA
V
IN
= +15V
V
CC
= 0V (Power-Off)
2.14
5.0
mA
V
IN
= -15V
(Note 4)
-2.14
-5.0
mA
V
IN
= +3V
0.43
1.0
mA
V
IN
= -3V
-0.43
-1.0
mA
V
OH
Output High Voltage
V
IN
= V
TL
(min)
I
OUT
= -3.2 mA
2.8
4.0
V
I
OUT
= -20A
3.5
4.7
V
V
OL
Output Low Voltage
V
IN
= V
TH
(max)
0.15
0.4
V
I
OUT
= +3.2 mA
I
CC
Supply Current
No Load, V
IN
= 2.7V or 0.5V
0.5
900
A
AC Electrical Characteristics
(Note 3)
Over recommended operating conditions, unless otherwise specified, C
I
= 50 pF
Symbol
Parameter
ConditIons
Min
Typ
Max
Units
t
PLH
Propagation Delay Low to High
Input Pulse Width
10 s
3.5
6.5
s
t
PHL
Propagation Delay High to Low
Input Pulse Width
10 s
3.2
6.5
s
t
SK
Typical Propagation Delay Skew
400
ns
t
r
Output Rise TIme
40
300
ns
t
f
Output Fall Time
40
300
ns
t
nw
Pulse Width assumed to be Noise
1.0
s
Note 1: "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The tables of "Electrical Characteristics" specify conditions for device operation.
Note 2: Derate N Package 12.1 mW/C, and M Package 8.5 mW/C above +25C.
Note 3: AC input waveforms for test purposes: t
r
= t
f
= 200 ns, V
IH
= +3V, V
L
= -3V, f = 20 KHz.
Note 4: Under the power-off supply conditions it is assumed that the power supply potential drops to zero (0V) and is replaced by a low impedance or short circuit
to ground.
DS14C89A
www.national.com
2
Parameter Measurement Information
Typical Application Information
01110602
FIGURE 1. Receiver Load Circuit
01110603
FIGURE 2. Receiver Switching Waveform (Note 3)
01110604
FIGURE 3. Receiver Block Diagram
01110605
FIGURE 4. EIA-232D Data Transmission
DS14C89A
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3
Physical Dimensions
inches (millimeters) unless otherwise noted
Order Number DS14C89AM
NS Package Number M14A
Order Number DS14C89AN
NS Package Number N14A
DS14C89A
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4
Notes
LIFE SUPPORT POLICY
NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
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Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification
(CSP-9-111S2) and contain no ``Banned Substances'' as defined in CSP-9-111S2.
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www.national.com
DS14C89A
Quad
CMOS
Receiver
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
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