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RS-232 Interface IC Quad Line Drive

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SN75188N General Description

The MC1488, SN55188, and SN75188 are monolithic quadruple line drivers designed to interface data terminal equipment with data communications equipment in conformance with ANSI EIA/TIA-232-E using a diode in series with each supply-voltage terminal as shown under typical applications.

The SN55188 is characterized for operation over the full military temperature range of ?55°C to 125°C. The MC1488 and SN75188 are characterized for operation from 0°C to 70°C.

sn75188n sn75188n

Key Features

  • Meets or Exceeds the Requirements of ANSI EIA/TIA-232-E and ITU Recommendation V.28
  • Current-Limited Output: 10 mA Typ
  • Power-Off Output Impedance: 300 Minimum
  • Slew Rate Control by Load Capacitor
  • Flexible Supply-Voltage Range
  • Input Compatible With Most TTL Circuits


Sensing & Instrumentation, Communications & Networking


Category Integrated Circuits (ICs)InterfaceDrivers, Receivers, Transceivers Mfr Texas Instruments
Series - Package Tube
Product Status Last Time Buy Type Driver
Protocol RS232 Number of Drivers/Receivers 4/0
Duplex - Data Rate -
Voltage - Supply ±7.5V ~ 15V Operating Temperature 0°C ~ 70°C
Mounting Type Through Hole Package / Case 14-DIP (0.300", 7.62mm)
Supplier Device Package 14-PDIP Base Product Number SN75188

Service Policies and Others

After-Sales & Settlement Related

payment Payment

We accept TT prepayment (bank transfer), paypal, credit cards, Western Union, Money Gram.

If you have specific preferences or requirements for payment channels, please contact our sales team. 

customers are required to pay all possible fees, including sales tax,customs fees, etc.

shipping Shipping And Packing
Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

warranty Warranty & Returns

Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.

Ratings and Reviews

D**n 05/23/2023

The module is good, fast charging works, in the peak of catch 3,6 amps, so that the top

N**s 06/24/2022

I order another time, that's who the pearl fee stopped pratsuvati while the silence of vicoristannya.

D**o 05/18/2022

Delivery as usual for a short time 5 days, lay just in a package with a puffy, on one leg bent. Marking normal installed works.



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