The 74LS series of integrated circuits (ICs) was one of the most popular logic families of transistor-transistor logic (TTL) logic chips. 74LS series is a bipolar, low-power Schottky IC. The 74LS95 is a 4-Bit Shift Register with serial and parallel synchronous operating modes. The serial shift right and parallel load are activated by separate clock inputs which are selected by a mode control input.
74LS95 Features
- 4-bit Shift Register with Serial and Parallel Synchronous Operating Modes
- Separate Shift and Load Clock Inputs
- Input Clamp Diodes
- Operating Temperature up to 70°C
- Standard TTL Switching Voltages
74LS95 Specifications
| Supply Voltage | 4.75 – 5.25Vdc |
| Maximum Clock Frequency | 40Mhz |
| Power Dissipation | 2mW/gate @100kHz |
| Minimum Output Current | 8mA |
| Propagation Delay | 10nS |
| Fan Out (TTL Loads) | 20 |
74LS95 Pinout Diagram
74LS95 Pin Description
| Pin No | Pin Name | Description |
| 1 | DS | DS Serial Data |
| 2 | P0 | Parallel Data P0 |
| 3 | P1 | Parallel Data P1 |
| 4 | P2 | Parallel Data P2 |
| 5 | P3 | Parallel Data P3 |
| 6 | S | Mode Control Input |
| 7 | GND | Ground |
| 8 | CP2′ | CP2 Parallel Clock (Active LOW Going Edge) |
| 9 | CP1′ | CP1 Serial Clock (Active LOW Going Edge) |
| 10 | Q3 | Parallel Output Q3 |
| 11 | Q2 | Parallel Output Q2 |
| 12 | Q1 | Parallel Output Q1 |
| 13 | Q0 | Parallel Output Q0 |
| 14 | VCC | Positive Supply |
Applications
- The shift registers are used for temporary data storage.
- The shift registers are also used for data transfer and data manipulation.
74LS95 Alternative Equivalent
74LS194, 74LS195,
Download the 74LS95 4-bit Parallel-access Shift Register Datasheet from the link given below.
