Overview
The SN74LS273NSR is a monolithic, positive-edge-triggered octal D-type flip-flop integrated circuit produced by Texas Instruments. This device utilizes TTL (Transistor-Transistor Logic) circuitry and features a direct clear input. It is designed to implement D-type flip-flop logic, where information at the D inputs is transferred to the Q outputs on the positive-going edge of the clock pulse. The SN74LS273NSR is part of the 74LS series, known for its low power consumption and high noise immunity.
Key Specifications
| Parameter | Unit | Min | Nom | Max |
|---|---|---|---|---|
| Supply Voltage (VCC) | V | 4.5 | 5 | 5.5 |
| High-Level Output Current (IOH) | µA | -400 | -400 | -400 |
| Low-Level Output Current (IOL) | mA | 4 | 8 | 8 |
| Clock Frequency (fclock) | MHz | 0 | 30 | 30 |
| Propagation Delay Time (tPHL, tPLH) | ns | 17 | 27 | 27 |
| Operating Free-Air Temperature Range | °C | 0 | - | 70 |
| Storage Temperature Range | °C | -65 | - | 150 |
Key Features
- Positive-Edge-Triggered D-Type Flip-Flops: Information at the D inputs is transferred to the Q outputs on the positive-going edge of the clock pulse.
- Direct Clear Input: Each flip-flop has a direct clear input for resetting the outputs.
- Buffered Clock and Clear Inputs: Ensures stable and reliable clock and clear signals.
- Individual Data Inputs: Each flip-flop has an individual data input.
- Low Power Consumption: Part of the 74LS series, known for low power dissipation (typically 10 milliwatts per flip-flop).
- High Noise Immunity: Enhanced noise immunity compared to other TTL series.
Applications
- Buffer/Storage Registers: Used for temporary data storage and buffering.
- Shift Registers: Can be configured to form shift registers for serial data processing.
- Pattern Generators: Useful in generating specific patterns or sequences of data.
- General Logic Circuits: Can be used in various digital logic circuits requiring flip-flop functionality.
Q & A
- What is the SN74LS273NSR?
The SN74LS273NSR is a monolithic, positive-edge-triggered octal D-type flip-flop integrated circuit produced by Texas Instruments.
- What is the typical power dissipation of the SN74LS273NSR?
The typical power dissipation is 10 milliwatts per flip-flop.
- What is the maximum clock frequency for the SN74LS273NSR?
The maximum clock frequency is typically 30 MHz, but can go up to 40 MHz under certain conditions.
- What is the operating free-air temperature range for the SN74LS273NSR?
The operating free-air temperature range is from 0°C to 70°C.
- Does the SN74LS273NSR have a direct clear input?
- What are some common applications of the SN74LS273NSR?
- What is the propagation delay time for the SN74LS273NSR?
- What is the storage temperature range for the SN74LS273NSR?
- Does the SN74LS273NSR have individual data inputs for each flip-flop?
- What is the high-level output current (IOH) for the SN74LS273NSR?
