TI SN74LS170N

Overview

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.

• 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

Features