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CY74FCT2257T - QUAD 2-INPUT MULTIPLEXER

General Description

The CY74FCT2257T has four identical two-input multiplexers that select four bits of data from two sources under the control of a common data-select (S) input.

The I0 inputs are selected when S is low, and the I1 inputs are selected when S is high.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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D Function and Pinout Compatible With FCT and F Logic D 25-Ω Output Series Resistors to Reduce Transmission-Line Reflection Noise D TTL Output Level Versions of Equivalent FCT Functions D Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics D Ioff Supports Partial-Power-Down Mode Operation D Fully Compatible With TTL Input and Output Logic Levels D ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) D 12-mA Output Sink Current 15-mA Output Source Current D 3-State Outputs CY74FCT2257T QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS SCCS038B – SEPTEMBER 1994 – REVISED OCTOBER 2001 Q OR SO PACKAGE (TOP VIEW) S I0a I1a Ya I0b I1b Yb GND 1 2 3 4 5 6 7 8 16 VCC 15 OE 14 I0c 13 I1c 12 Yc