| Part Number | SN75188NSR | SN75189NSR | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | Interface - Drivers, Receivers, Transceivers | Interface - Drivers, Receivers, Transceivers | 
|   |   | |
| Product Status | Active | Active | 
| Type | Driver | Receiver | 
| Protocol | RS232 | RS232 | 
| Number of Drivers/Receivers | 4/0 | 0/4 | 
| Duplex | - | - | 
| Receiver Hysteresis | - | - | 
| Data Rate | - | - | 
| Voltage - Supply | ±7.5V ~ 15V | 4.5V ~ 5.5V | 
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 14-SOIC (0.209", 5.30mm Width) | 14-SOIC (0.209", 5.30mm Width) | 
| Supplier Device Package | 14-SO | 14-SO |