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SN74LS670 - 4 x 4 REGISTER FILE

Download the SN74LS670 datasheet PDF. This datasheet also covers the SN74LS670D variant, as both devices belong to the same 4 x 4 register file family and are provided as variant models within a single manufacturer datasheet.

Key Features

  • open-collector outputs.
  • Simultaneous Read/ Write Operation.
  • Expandable to 512 Words by n-Bits.
  • Typical Access Time to 20 ns.
  • 3-State Outputs for Expansion.
  • Typical Power Dissipation of 125 mW.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SN74LS670D_MotorolaInc.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
SN74LS670 4-BY-4 REGISTER FILES Texas Instruments
SN74LS670 4 x 4 Register File ON Semiconductor
SN74LS673 16-BIT SHIFT REGISTER Texas Instruments
SN74LS674 16-BIT SHIFT REGISTER Texas Instruments
SN74LS620 Octal Bus Transceiver Texas Instruments

Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
SN74LS623 OCTAL BUS TRANSCEIVER
SN74LS640 OCTAL BUS TRANSCEIVERS
SN74LS641 OCTAL BUS TRANSCEIVERS
SN74LS642 OCTAL BUS TRANSCEIVERS
SN74LS645 OCTAL BUS TRANSCEIVERS

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
4 x 4 REGISTER FILE WITH 3-STATE OUTPUTS The TTL / MSI SN54 / 74LS670 is a high-speed, low-power 4 x 4 Register File organized as four words by four bits. Separate read and write inputs, both address and enable, allow simultaneous read and write operation. The 3-state outputs make it possible to connect up to 128 outputs to increase the word capacity up to 512 words. Any number of these devices can be operated in parallel to generate an n-bit length. The SN54 / 74LS170 provides a similar function to this device but it features open-collector outputs.