MC10E457

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.

The MC10E457/100E457 is a 3-bit differential 2:1 multiplexer. The fully differential data path makes the device ideal for multiplexing low skew clock or other skew sensitive signals.

The higher frequency outputs provide the MC10E457/100E457 with a > 1.0 GHz bandwidth to meet the needs of the most demanding system clock. Both, separate selects and a common select, are provided to make the MC10E457/100E457 well suited for both data path and random logic applications.

The differential inputs of MC10E457/100E457 have internal clamp structures which will force the Q output of a gate in an open input condition to go to a LOW state. Thus, inputs of unused gates can be left open and will not affect the operation of the rest of the MC10E457/100E457. Note that the input clamp will take affect only if both inputs fall 2.5 V below VCC. The 100 Series contains temperature compensation.

Multiple VBB pins of MC10E457/100E457 are provided to ease AC coupling input signals. The VBB pins, internally generated voltage supply pins, are 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 MC10E457/100E457 is used, decouple VBB and VCC via a 0.01 F capacitor and limit current sourcing or sinking to 0.5 mA. When not used, VBB should be left open.