MECL PLL COMPONENTS /64/128/256 PRESCALER

The MC3453 and MC3553 feature four Line Drivers with a common-enable input. When the ENABLE input is high, a constant output current is switched between each pair of output terminals in response to the Logic level at that channel input. When the ENABLE is low, all channel outputs are nonconductive (transistors biased to cutoff). This minimizes loading in party-line systems where a large number of drivers share the same line. The driver outputs have a common-mode voltage range of 3 V to 10 V, allowing common-mode voltages on the line without affecting driver performance. All outputs should be maintained within the recommended common-mode output voltage range to ensure that the channels do not interact with each other. To minimize power dissipation, all unused outputs should be grounded. All inputs are Diode clamped and are designed to satisfy TTL-system requirements. The inputs are tested at 2 V for high-logic-level input conditions and 0.8 V for low-logic-level input conditions. These tests ensure 400 mV of noise margin when interfaced with Series 54/74 TTL. The MC3453 is characterized for operation from 0C to 70C. The MC3553 is characterized for operation over the full military temperature range of 55C to 125C. By Texas Instruments
MC12079 's PackagesMC12079 's pdf datasheet



MC12079 Pinout, Pinouts
MC12079 pinout,Pin out
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