| 1. | This type of connection is also referred to as open collector.
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| 2. | SCSI-1 devices use open collector for electrical signaling.
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| 3. | The heart of an I2L circuit is the common emitter open collector inverter.
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| 4. | The wired AND function below is achieved by using open collector TTL gates.
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| 5. | This is most commonly seen in Transistor transistor logic using 7406 open collector logic.
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| 6. | The open collector input / output is a popular alternative to three-state logic.
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| 7. | A common variation omits the collector resistor of the output transistor, making an open collector output.
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| 8. | Because the bus lines are electrically open collector it works like a long OR gate between all device line drivers.
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| 9. | The signals are standard TTL 0-5V, except the Rx Busy output, which is an open collector pulldown.
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| 10. | Open collector outputs of some gates have a higher maximum voltage, such as 15V for the 7426, useful when driving other than TTL loads.
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