74LS670 Datasheet – 4 x 4, Register File, DIP 16

Part Number: 74LS670

Function: 4 x 4, Register File with 3-State Outputs

Package: DIP 16 Pin Type

Manufacturer: ON Semiconductor

74LS670 datasheet


The TTL/MSI 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.


• 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

Logic Diagram :


Other data sheets are available within the file: SN74LS670, SN74LS670D, SN74LS670N

74LS670 Datasheet PDF Download

74LS670 pdf

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