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SN74LS670 Datasheet 4 X 4 Register File

Manufacturer: Motorola Semiconductor (now NXP Semiconductors)

Overview: 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.

This datasheet includes multiple variants, all published together in a single manufacturer document.

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.

SN74LS670 Distributor