SN74LS170 Datasheet - Motorola

SN74LS170 4 x 4 REGISTER FILE OPEN-COLLECTOR

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 .

SN74LS170 Features

* 3-state outputs.

* Simultaneous Read/ Write Operation

* Expandable to 512 Words of n-Bits

* Typical Access Time of 20 ns

* Low Leakage Open-Collector Outputs for Expansion

* Typical Power Dissipation of 125 mW CONNECTION DIAGRAM DIP (TOP VIEW) VCC D1 WA WB EW

SN74LS170 Datasheet (107.33 KB)