SN54/74LS170 4 x 4 REGISTER FILE OPEN-COLLECTOR The TTL / MSI SN54 / 74LS170 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.
Open-collector outputs make it possible to connect up to 128 outputs in a wired-AND configuration 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 / 74LS670 provides a similar function to this device but it features 3-state outputs.
4 x 4 REGISTER FILE OPEN-COLLECTOR LOW POWER SCHOTTKY • • • • • Simultaneous Read/ Write Operation Expandabl...

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