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MC74AC256 - DUAL 4-BIT ADDRESSABLE LATCH

Download the MC74AC256 datasheet PDF. This datasheet also covers the MC74ACT256 variant, as both devices belong to the same dual 4-bit addressable latch family and are provided as variant models within a single manufacturer datasheet.

Key Features

  • 0) T A M M T B M DIM A B C D E F G J K L M N.
  • A.
  • 20 11 DW SUFFIX.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MC74ACT256_Motorola.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
MC74AC253 DUAL 4-INPUT MULTIPLEXER ON Semiconductor
MC74AC257 QUAD 2-INPUT MULTIPLEXER ON Semiconductor
MC74AC259 8-BIT ADDRESSABLE LATCH ON Semiconductor
MC74AC20 Dual 4-Input NAND Gate ON Semiconductor
MC74AC240 Octal Buffer/Line Driver ON Semiconductor

Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
MC74AC251 8-Input Multiplexer
MC74AC253 DUAL 4-INPUT MULTIPLEXER
MC74AC257 QUAD 2-INPUT MULTIPLEXER
MC74AC258 QUAD 2-INPUT MULTIPLEXER
MC74AC259 8-BIT ADDRESSABLE LATCH

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.

View original datasheet text
( DataSheet : www.DataSheet4U.com ) MC74AC256 MC74ACT256 Dual 4ĆBit Addressable Latch The MC74AC256/74ACT256 dual addressable latch has four distinct modes of operation which are selectable by controlling the Clear and Enable inputs (see Function Table). In the addressable latch mode, data at the Data (D) inputs is written into the addressed latches. The addressed latches will follow the Data input with all unaddressed latches remaining in their previous states. In the memory mode, all latches remain in their previous states and are unaffected by the Data or Address inputs. To eliminate the possibility of entering erroneous data in the latches, the enable should be held HIGH (inactive) while the address lines are changing.