Supply original MC100ELT21DG, Logic - Translators, Level Shifters, by ON Semiconductor

Description
The MC10ELT/100ELT21 is a differential PECL to TTL translator. Because PECL (Positive ECL) levels are used, only +5 V and ground are required.
The small outline 8-lead package and the single gate of the ELT21 makes it ideal for those applications where space, performance and low power are at a premium.
The VBB pin, an internally generated voltage supply, is available to this device only. For single-ended input conditions, the unused differential input is connected to VBB as a switching reference voltage. VBB may also rebias AC coupled inputs. When used, decouple VBB and VCC via a 0.01 μF capacitor and limit current sourcing or sinking to 0.5 mA. When not used, VBB should be left open.
The 100 Series contains temperature compensation.
Features
• 3.5 ns Typical Propagation Delay
• 24 mA TTL Output
• Flow Through Pinouts
• Operating Range: VCC = 4.75 V to 5.25 V with GND = 0 V
• Q Output Will Default LOW with Inputs Left Open or < 1.3 V
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These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant