The DM74S195N is a 4-bit parallel access shift register from the 74S (Schottky) series of TTL (Transistor-Transistor Logic) integrated circuits. This device can perform serial or parallel data entry and has both serial and parallel outputs. It's commonly used for data storage, shift register operations, and sequence generation.

Applications

• Sequence generation
• Data storage
• Serial-to-parallel conversion
• Parallel-to-serial conversion
• Digital delay lines

Features

• 4-bit parallel access capability
• Serial and parallel data entry
• Serial and parallel outputs
• Asynchronous master reset
• J-K serial inputs for versatile operation

Benefits

• Provides flexible data manipulation options with serial and parallel access
• Enables easy implementation of shift register functions
• Facilitates data conversion between serial and parallel formats
• Simplifies design with asynchronous reset capability

Additional Details

The DM74S195N typically comes in a 16-pin DIP (Dual In-line Package). It operates within the standard TTL voltage range of 4.75V to 5.25V. The 'S' designation indicates that it's a Schottky device, offering higher speed operation compared to standard TTL devices. It includes a direct clear input to reset all flip-flops to a low state. Data is entered serially through the J and K inputs. Parallel data is loaded asynchronously when the shift/load input is LOW.