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| Part Number | SN75C189ANS | SN75C189ANSR | SN75C189ANS |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Series | * | - | - |
| Package/Case | - | 14-SOIC (0.209", 5.30mm Width) | 14-SOIC (0.209", 5.30mm Width) |
| Packaging | Bulk | Tape & Reel (TR) | Tube |
| Product Status | Active | Active | Obsolete |
| Type | - | Receiver | Receiver |
| Protocol | - | RS232 | RS232 |
| Number of Drivers/Receivers | - | 0/4 | 0/4 |
| Duplex | - | - | - |
| Receiver Hysteresis | - | 970 mV | 970 mV |
| Data Rate | - | - | 1Mbps |
| Voltage - Supply | - | 4.5V ~ 6V | 4.5V ~ 6V |
| Operating Temperature | - | 0°C ~ 70°C | 0°C ~ 70°C (TA) |
| Grade | - | - | - |
| Qualification | - | - | - |
| Mounting Type | - | Surface Mount | Surface Mount |
| Supplier Device Package | - | 14-SO | 14-SO |
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