MC1488 Quadruple Line Driver |


Quadruple Line Driver

Quadruple Line Driver - MC1488


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.


  • 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

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Parametrics Compare all products in RS-232

Drivers per package
Receivers per package
Logic voltage (Min) (V)
Data rate (Max) (kbps)
Main supply voltage (Nom) (V)
Operating temperature range (C)
Package Group
MC1488 MC1489
4     0    
0     4    
5     5    
300     1000    
9     5    
0     0    
Catalog     Catalog    
0 to 70     0 to 70    
PDIP | 14     PDIP | 14