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SN75LP185A

PinoutSpecificationsPositive supply-voltage range (see Note 1): VCC . . . . . . . . . . . . . . . . . . . .. . . . . . .0.5 V to 7 V VDD (see Note 1) . . . . . . . . . . . . . . .0.5 V to 15 VNegative supply-voltage range, VSS (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to ...

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SN75LP185A: PinoutSpecificationsPositive supply-voltage range (see Note 1): VCC . . . . . . . . . . . . . . . . . . . .. . . . . . .0.5 V to 7 V VDD (see Note 1) . . . . . . . . . . . . . . .0.5 V to 15 VNegati...

SN75LP185A Data Sheet

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Part Number:
SN75LP185A
Supply Ability:
5000

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  • 1~5000
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Product Details

Description



Pinout

Connection Diagram


Specifications

Positive supply-voltage range (see Note 1): VCC  . . . . . . . . . . . . . . . . . . . .. . . . . . .0.5 V to 7 V
                                                                     VDD (see Note 1)  . . . . . . . . . .  . . . . .0.5 V to 15 V
Negative supply-voltage range, VSS (see Note 1)  . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to 15 V
Input-voltage range, VI: Receiver (RA)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 V to 30 V
                                        Driver (DA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 0.5 V to VCC+0.4 V
Output-voltage range, VO: Receiver (RY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 6 V
                                            Driver (DY)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 V to 15 V
Electrostatic discharge (see Note 2): Bus pins (human-body model) Class 3, A:  . . . . . . . . . .15 kV
                                                          Bus pins (machine model) Class 3, B: . . . . . . . . . .. . . . .500 V
                                                          Bus pins (IEC1000-4-2, contact) Class 3, C:  . . . . . . . . . . .8 kV
                                                          Bus pins (IEC1000-4-2, air gap) Class 3, D:  . . . . . .. . . .15 kV
                                                           All pins (human-body model) Class 3, A: . . . . . . . .. . . . . 5 kV
                                                          All pins (machine model) Class 3, B:  . . . . . . . . . . .  . . . .400 V
Package thermal impedance, qJA (see Note 3)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds  . . . . . . . . . . . . . . . .. . . . . .260°C
NOTES: 1. All voltage values are with respect to network ground terminal, unless otherwise noted.
2. Per MIL-STD-883 Method 3015.7
3. The package thermal impedance is calculated in accordance with JESD 51.


Description

The SN75LP185A is a low-power bipolar device containing three drivers and five receivers with 15 kV of ESD protection on the bus pins with respect to each other. Bus pins are defined as those pins that tie directly to the serial-port connector, including GND. The pinout matches the flow-through design of the industry-standard SN75185 and SN75C185. The flow-through pinout of the SN75LP185A allows easy interconnection of the UART and serial-port connector of the IBM PC/AT and compatibles. The SN75LP185 A provides a rugged, low-cost solution for this function with the combination of the bipolar processing and 15 kV of ESD protection.

The SN75LP185A has internal slew-rate control to provide a maximum rate of change in the output signal of 30 V/ms. The driver output swing is nominally clamped at ±6 V to enable the higher data rates associated with this device and to reduce EMI emissions. Even though the driver outputs are clamped, they can handle voltages up to ±15 V without damage. All the logic inputs can accept 3.3-V or 5-V input signals.

The SN75LP185A complies with the requirements of TIA/EIA-232-F and ITU V.28. These standards are for data interchange between a host computer and peripheral at signaling rates up to 20 kbit/s. The switching speeds of the SN75LP185 A support rates up to 256 kbit/s.

The SN75LP185A is characterized for operation from 0°C to 70°C.




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