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| PartNumber | SN74LS623NSRE4 | SN74LS623NSR | SN74LS623NS |
| Description | Bus Transceivers Octal bus Transceiver | Bus Transceivers Octal bus Transceiver | Bus XCVR Single 8-CH 3-ST 20-Pin SOP Tube |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Bus Transceivers | Bus Transceivers | Logic - Buffers, Drivers, Receivers, Transceivers |
| RoHS | Y | Y | - |
| Logic Family | 74LS | 74LS | - |
| Input Level | TTL | TTL | - |
| Output Level | TTL | TTL | - |
| Output Type | 3-State | 3-State | - |
| High Level Output Current | - 15 mA | - 15 mA | - |
| Low Level Output Current | 24 mA | 24 mA | - |
| Propagation Delay Time | 15 ns | 15 ns | - |
| Supply Voltage Max | 5.25 V | 5.25 V | - |
| Supply Voltage Min | 4.75 V | 4.75 V | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Package / Case | SO-20 | SO-20 | - |
| Packaging | Reel | Reel | Tape & Reel (TR) |
| Function | Bus Transceiver | Bus Transceiver | - |
| Height | 1.95 mm | 1.95 mm | - |
| Length | 12.6 mm | 12.6 mm | - |
| Number of Circuits | 8 | 8 | - |
| Product | Bipolar | Bipolar | - |
| Technology | Bipolar | Bipolar | - |
| Width | 5.3 mm | 5.3 mm | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Number of Channels | 8 | 8 | - |
| Operating Supply Voltage | 4.75 V to 5.25 V | 4.75 V to 5.25 V | - |
| Polarity | Non-Inverting | Non-Inverting | - |
| Product Type | Bus Transceivers | Bus Transceivers | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Unit Weight | 0.009408 oz | 0.009408 oz | - |
| Series | - | - | 74LS |
| Package Case | - | - | 20-SOIC (0.209", 5.30mm Width) |
| Operating Temperature | - | - | 0°C ~ 70°C |
| Mounting Type | - | - | Surface Mount |
| Voltage Supply | - | - | 4.75 V ~ 5.25 V |
| Supplier Device Package | - | - | 20-SO |
| Number of Elements | - | - | 1 |
| Current Output High Low | - | - | 15mA, 24mA |
| Logic Type | - | - | Transceiver, Non-Inverting |
| Number of Bits per Element | - | - | 8 |