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RS-232 Driver/Receiver. NTE7142 Datasheet

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RS-232 Driver/Receiver. NTE7142 Datasheet
















NTE7142 Driver/Receiver. Datasheet pdf. Equivalent













Part

NTE7142

Description

Integrated Circuit +5V-Powered / Multichannel RS-232 Driver/Receiver



Feature


NTE7142 Integrated Circuit +5V–Powered , Multichannel RS–232 Driver/Receiver Description: The NTE7142 is a multicha nnel RS–232 driver/receiver in a 16 Lead DIP type package intended for all EIA/TIA–232E and V.28/V.24 communica tions interfaces, particularly applicat ions where ±12V is not available. Feat ures: D Operate From Single +5V Power S upply D Meet All EIA/TIA–232E.
Manufacture

NTE Electronics

Datasheet
Download NTE7142 Datasheet


NTE Electronics NTE7142

NTE7142; and V.28 Specifications D Multiple Driv ers and Receivers D 3–State Driver an d Receiver Outputs Applications: D Port able Computers D Low–Power Modems D I nterface Translation D Battery–Powere d RS–232 Systems D Multidrop RS–232 Networks Absolute Maximum Ratings: (No te 1) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


NTE Electronics NTE7142

. . . . . . . . . . . . . . . . –0.3V to +6V Input Voltage, TIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to (VCC–0.3V) Inpu t Voltage, RIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30V Outpu t Voltage (Note 2), TOUT .


NTE Electronics NTE7142

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15V Outp ut Voltage, ROUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0 .3V to (VCC+0.3V) Driver/Receiver Outpu t Short Circuited to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contin.





Part

NTE7142

Description

Integrated Circuit +5V-Powered / Multichannel RS-232 Driver/Receiver



Feature


NTE7142 Integrated Circuit +5V–Powered , Multichannel RS–232 Driver/Receiver Description: The NTE7142 is a multicha nnel RS–232 driver/receiver in a 16 Lead DIP type package intended for all EIA/TIA–232E and V.28/V.24 communica tions interfaces, particularly applicat ions where ±12V is not available. Feat ures: D Operate From Single +5V Power S upply D Meet All EIA/TIA–232E.
Manufacture

NTE Electronics

Datasheet
Download NTE7142 Datasheet




 NTE7142
NTE7142
Integrated Circuit
+5V–Powered, Multichannel RS–232 Driver/Receiver
Description:
The NTE7142 is a multichannel RS–232 driver/receiver in a 16–Lead DIP type package intended for
all EIA/TIA–232E and V.28/V.24 communications interfaces, particularly applications where ±12V is
not available.
Features:
D Operate From Single +5V Power Supply
D Meet All EIA/TIA–232E and V.28 Specifications
D Multiple Drivers and Receivers
D 3–State Driver and Receiver Outputs
Applications:
D Portable Computers
D Low–Power Modems
D Interface Translation
D Battery–Powered RS–232 Systems
D Multidrop RS–232 Networks
Absolute Maximum Ratings: (Note 1)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +6V
Input Voltage, TIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to (VCC–0.3V)
Input Voltage, RIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30V
Output Voltage (Note 2), TOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15V
Output Voltage, ROUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to (VCC+0.3V)
Driver/Receiver Output Short Circuited to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Continuous Power Dissipation (TA = +70°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 842mW
Dreate Above +70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.53mW/°C
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +160°C
Lead Temperature (During Soldering, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C
Note 1. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent
damage to the device. These are stress ratings only, and functional operation of the device
at these or any other conditions beyond those indicated in the operational section of the
specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
Note 2. Input voltage measured with TOUT in high–impedance state, VCC = 0V.




 NTE7142
Electrical Characteristics: (VCC = +5V ±10%, TA = 0° to +70°C, C1C4 = 0.1µF unless otherwise
specified)
Parameter
Test Conditions
Min Typ Max Unit
RS232 Transmitter
Output Voltage Swing
All transmitter output loaded with 3kto GND ±5
±8
V
Input Logic Threshold Low
1.4 0.85 V
Input Logic Threshold High
2.0 1.4
V
Logic PullUp/Input Current
Normal operation
5 40 µA
Output Leakage Current
Data Rate
VCC = 0V, VOUT = ±15V
Normal operation
±0.01 ±10 µA
200 116 kb/s
Transmitter Output Resistance
Output ShortCircuit Current
VCC = V+ = V= 0V, VOUT = ±2V
VOUT = 0V
300 10M
±7 ±22
mA
RS232 Receiver
RS232 Input Voltage Operating
Range
– – ±30 V
RS232 Input Threshold Low
VCC = 5V, R2IN
0.8 1.3
V
RS232 Input Threshold High
VCC = 5V, R2IN
1.8 2.4 V
RS232 Input Hysteresis
RS232 Input Resistance
VCC = 5V
0.2 0.5 1.0 V
3 5 7 k
TTL/CMOS Output Voltage Low
TTL/CMOS Output Voltage High
IOUT = 3.2mA
IOUT = 1.0mA
0.2 0.4
3.5 VCC0.2
V
V
TTL/CMOS Output ShortCircuit
Current
TTL/CMOS Output Leakage Current
Operating Supply Voltage
Sourcing, VOUT = GND
Shrinking, VOUT = VCC
0V VOUT VCC
2 10
mA
10 30
mA
±0.05 ±10 µA
4.5 5.5 V
VCC Supply Current
No load
3kload, both inputs
4 10 mA
15 mA
Transition Slew Rate
CL = 50pF to 2500pF, RL = 3kto 7k,
VCC = 5V, TA = +25°C, measured from
+3V to 3V or 3V to +3V
6 12 30 V/µs
Transmitter Propagation Delay
TTL to RS232 (normal operation)
Receiver Propagation Delay
RS232 to TTL (normal operation)
tPHLT
tPLHT
tPHLR
tPLHR
1.3 3.5 µs
1.5 3.5 µs
0.5 1.0 µs
0.6 1.0 µs
Transmitter + to Propagation Delay tPHLT tPLHT
Difference (normal operation)
300 ns
Receiver + to Propagation Delay
Difference (normal operation)
tPHLR tPLHR
100 ns




 NTE7142
Pin Connection Diagram
Capacitor 1 (+) 1
V+ (+10V) 2
Capacitor 1 () 3
Capacitor 2 (+) 4
Capacitor 2 () 5
V(10V) 6
RS232 Output 2 7
RS232 Input 2 8
16 VCC
15 GND
14 RS232 Output 1
13 RS232 Input 1
12 TTL/CMOS Out 1
11 TTL/CMOS In 1
10 TTL/CMOS In 2
9 TTL/CMOS Out 2
16 9
18
.765 (19.43)
Max
.325 (8.26)
Max
.180 (4.57)
Max
.100 (2.54)
.700 (17.78)
.115 (2.92) Min




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