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| Part Number | SN75970B1DLRG4 | SN75970B2DLRG4 | SN75971B1DLRG4 | 
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | 
| Product Status | Obsolete | Obsolete | Obsolete | 
| Type | Transceiver | Transceiver | Transceiver | 
| Protocol | RS422, RS485 | RS422, RS485 | RS422, RS485 | 
| Number of Drivers/Receivers | 9/9 | 9/9 | 9/9 | 
| Duplex | Half | Half | Half | 
| Receiver Hysteresis | 45 mV | 45 mV | 45 mV | 
| Data Rate | - | - | - | 
| Voltage - Supply | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | 
| Package / Case | 56-BSSOP (0.295", 7.50mm Width) | 56-BSSOP (0.295", 7.50mm Width) | 56-BSSOP (0.295", 7.50mm Width) | 
| Supplier Device Package | 56-SSOP | 56-SSOP | 56-SSOP |