SN75LP196N

Drivers, Receivers, Transceivers Overview

The SN75LP196N is a low-power bipolar RS-232 interface device featuring five drivers and three receivers in a 20-pin Dual-in-Line (N) package. It operates with a VCC supply of 4.75 V to 5.25 V and VDD/VSS supplies ranging from ±9 V to ±15 V. The device supports data rates up to 256 kbit/s, with driver output slew rates controlled internally to a maximum of 30 V/μs. Receiver input hysteresis is typically 1000 mV, and bus pins provide ESD protection exceeding 15 kV via the human-body model. Operating temperature ranges from 0°C to 70°C.

Drivers, Receivers, Transceivers Feature Summary

• Provides full-duplex serial communication through five independent drivers and three receivers compliant with TIA/EIA-232-F standards.
• Features internal slew-rate control limiting output signal change to 30 V/μs maximum to reduce electromagnetic interference emissions.
• Includes robust electrostatic discharge protection on bus pins exceeding 15 kV using the human-body model for enhanced reliability.
• Accepts logic inputs compatible with both 3.3-V and 5-V signals while maintaining flow-through pinout compatibility with industry-standard equivalents.

Drivers, Receivers, Transceivers Applications

• External modem interfaces
• Computer peripheral serial ports
• IBM PC/AT and compatible system interconnections

Drivers, Receivers, Transceivers Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm package type matches the required 20-pin Dual-in-Line configuration. Ensure supply voltage requirements align with the specified operating ranges before integration into the design.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring multiple RS-232 channels with integrated ESD protection. Verify that the application environment stays within the 0°C to 70°C operating temperature range. Ensure power supply rails can accommodate the necessary VDD and VSS voltages for proper driver functionality.

Drivers, Receivers, Transceivers Part Context

This device belongs to the SN75LP series of low-power RS-232 transceivers manufactured by Texas Instruments. It serves as a direct replacement for the industry-standard SN75196, offering identical flow-through pinouts to simplify PCB layout upgrades. The SN75LP196 complements other components like the SN75LP1185 in complete interface solutions.

Drivers, Receivers, Transceivers Replacement Considerations

The SN75LP196N is designed to replace the SN75196 with the same flow-through pinout. Verify pin compatibility during retrofitting to ensure seamless integration without circuit board modifications.

Drivers, Receivers, Transceivers FAQ

What is the maximum data rate supported by the SN75LP196N?

The device supports signaling rates up to 256 kbit/s, particularly with lower capacitive loads or shorter cables.

How does the SN75LP196N handle ESD events on bus pins?

Bus pins, including GND, are protected against electrostatic discharge exceeding 15 kV using the human-body model.

Can the SN75LP196N accept 3.3-V logic inputs?

Yes, all logic inputs on the device can accept both 3.3-V and 5-V input signals.