See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

DBQ | 24

Temp:

I (-40 to 85)

ECO Plan:

Green (RoHS & no Sb/Br)

CY74FCT646ATQCT


Octal Registered Bus Transceivers with 3-State Outputs

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1000 - 9999 $ 0.46

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Texas Instruments CY74FCT646ATQCT

The \x92FCT646T devices consist of a bus transceiver circuit with 3-state, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus is clocked into the registers as the appropriate clock pin goes to a high logic level. Output-enable (G\) and direction (DIR) inputs control the transceiver function. In the transceiver mode,data present at the high-impedance port can be stored in either the A or B register, or in both. Select controls (SAB, SBA) can multiplex stored and real-time (transparent mode) data. DIR determines which bus receives data when G\ is low. In the isolation mode (G\ is high), A data can be stored in the B register and/or B data can be stored in the A register.

These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. View datasheet
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