| Part Number | DS75121N | DS75129N | 
|---|---|---|
| Manufacturer | National Semiconductor | National Semiconductor | 
| Category | Interface - Drivers, Receivers, Transceivers | Interface - Drivers, Receivers, Transceivers | 
|   |   | |
| Product Status | Obsolete | Active | 
| Type | Transceiver | - | 
| Protocol | - | - | 
| Number of Drivers/Receivers | 2/0 | - | 
| Duplex | - | - | 
| Receiver Hysteresis | - | - | 
| Data Rate | - | - | 
| Voltage - Supply | 4.75V ~ 5.25V | - | 
| Operating Temperature | - | - | 
| Mounting Type | Through Hole | - | 
| Package / Case | 16-DIP (0.300", 7.62mm) | - | 
| Supplier Device Package | 16-DIP | - |