Product Summary

The SN75C188 is a monolithic, low-power, quadruple line driver that interfaces data terminal equipment with data communications equipment. This device is designed to conform to ANSI Standard EIA/TIA-232-E. An external diode in series with each supply-voltage terminal is needed to protect the SN75C188 under certain fault conditions to comply with EIA/TIA-232-E. The SN75C188 is characterized for operation from 0℃ to 70℃C.

Parametrics

SN75C188 absolute maximum ratings: (1)Supply voltage, VCC+: 15 V; (2)Supply voltage, VCC–: –15 V; (3)Input voltage range, VI: VCC– to VCC+; (4)Output voltage range, VO: VCC– –6 V to VCC+ +6 V; (5)Operating free-air temperature range, TA: 0 to 70℃; (6)Storage temperature range, Tstg: –65 to 150℃; (7)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 260℃.

Features

SN75C188 features: (1)Bi-MOS Technology With TTL and CMOS Compatibility; (2)Meets or Exceeds the Requirements of ANSI EIA/TIA-232-E and ITU Recommendation V.28; (3)Very Low Quiescent Current: 95 μA Typ VCC± = ±12 V; (4)Current-Limited Outputs: 10 mA Typ; (5)CMOS-and TTL-Compatible Inputs; (6)On-Chip Slew Rate Limited to 30 V/μs max; (7)Flexible Supply Voltage Range; (8)Characterized at VCC± of ±4.5 V and ±15 V; (9)Functionally Interchangeable With Texas Instruments SN75188, Motorola MC1488, and National Semiconductor DS14C88.

Diagrams

SN75C188 logic diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
SN75C188
SN75C188
Other

Data Sheet
Negotiable 
SN75C188D
SN75C188D
Texas Instruments
Buffers & Line Drivers Quad Low Pwr
Data Sheet
0-1: $0.55
1-25: $0.42
25-100: $0.37
100-250: $0.30
SN75C188DBR
SN75C188DBR
Texas Instruments
RS-232 Interface IC Quad Low Pwr
Data Sheet
0-1: $0.45
1-25: $0.35
25-100: $0.31
100-250: $0.27
SN75C188DBRG4
SN75C188DBRG4
Texas Instruments
RS-232 Interface IC Quad Lo Pwr Line Driver
Data Sheet
0-1: $0.45
1-25: $0.35
25-100: $0.31
100-250: $0.27
SN75C188DBRE4
SN75C188DBRE4
Texas Instruments
Bus Transmitters Quadruple Low-Power Line Driver
Data Sheet
0-1: $0.45
1-25: $0.35
25-100: $0.31
100-250: $0.27
SN75C188DE4
SN75C188DE4
Texas Instruments
Bus Transmitters Quadruple Low-Power Line Driver
Data Sheet
0-1: $0.49
1-25: $0.38
25-100: $0.33
100-250: $0.27
SN75C188DRG4
SN75C188DRG4
Texas Instruments
RS-232 Interface IC Quad Lo Pwr Line Driver
Data Sheet
0-1: $0.41
1-25: $0.32
25-100: $0.28
100-250: $0.25
SN75C188DRE4
SN75C188DRE4
Texas Instruments
RS-232 Interface IC Quadruple Low-Power Line Driver
Data Sheet
0-1: $0.41
1-25: $0.32
25-100: $0.28
100-250: $0.25