INTEGRAL IN1489AN Datasheet
Qudruple Line Receivers
The IN1489A is a monolithic quadruple line receivers designed to
satisfy the requirements of the standard interface between data terminal
equipment and data communication equipments as defined by EIA
standard RS-232C. A separate response control terminal is provided
for each receiver. A resistor or a resistor and bias voltage can be
connected between this terminal and ground to shift the input threshold
voltage levels. An external capacitor can be connected from this
terminal to ground to provide input noise filtering.
•
Input Resistance ... 3 kΩ to 7k
•
Input Signal Range ... ±30 V
•
Operates from Single 5 V Supply
•
Built-IN Input Hysteresis (Double Thresholds)
•
Response Control Provides: Input Tresold
•
Input Noise Filtering
Satisfies Requirements of EIA RS-232C
Ω
Shifting
TECHNICAL DATA
IN1489A
ORDERING INFORMATION
IN1489AN Plastic
IN1489AD SOIC
TA = -10° to 70° C
for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
FUNCTION TABLE
Inputs Output
AY
LH
HL
PIN 14 =V
PIN 7 = GND
CC
1
IN1489A
MAXIMUM RATINGS
*
Symbol Parameter Value Unit
V
CC
V
I
O
Supply Voltage 6 V
Input Voltage
IN
±
25
Output Current 10 mA
Tstg Storage Temperature Range -65 to +150
*
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Max Unit
V
CC
V
IH
V
IL
I
OL
T
A
Supply Voltage 5.5 V
High Level Input Voltage 25 V
Low Level Input Voltage -25 V
Low Level Output Current 10 mA
Ambient Temperature Range -10 +70
V
°
C
°
C
DC ELECTRICAL CHARACTERISTICS
over full operating conditions
Guaranteed Limit
Symbol Parameter Test Conditions Min Max Unit
V
T+
Positive-Going Tthreshold
1.75 2.25 V
Input Voltage
V
Negaitive-Going Tthreshold
T-
0.75 1.25 V
Voltage
V
OH
High-Level Output Voltage VI= 0.75 V, IOL = -0.5 mA 2.6 V
Input open, IOH=-0.5 mA 2.6
V
OL
I
IH
High-Level Output Voltage VI= 3 V, IOL = 10 mA 0.45 V
High Level Input Current VI=25 V 3.6 8.3 mA
VI=3 V 0.43
I
IL
Low Level Input Current VI=-25 V -3.6 -8.3 mA
VI=-3 V -0.43
I
OS
I
CC
Short Circuit Output Current -4.0 mA
Supply Current VI=5 V, Outputs open 26 mA
2
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