| Part Number | DS89C21TM | DS89C21TMX |
|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments |
| Category | Interface - Drivers, Receivers, Transceivers | Interface - Drivers, Receivers, Transceivers |
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| Product Status | Active | Obsolete |
| Type | Transceiver | Transceiver |
| Protocol | RS422, RS485 | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 | 1/1 |
| Duplex | Full | Full |
| Receiver Hysteresis | 50 mV | 50 mV |
| Data Rate | 20Mbps | 20Mbps |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC | 8-SOIC |