Overview
The SN74ALS273NSR is an octal D-type flip-flop integrated circuit produced by Texas Instruments. This component utilizes TTL (Transistor-Transistor Logic) circuitry to implement D-type flip-flop logic with a direct-clear (CLR) input. It is designed for positive-edge triggering, meaning the data at the input is transferred to the output on the positive-going edge of the clock pulse. The device is available in a 20-pin SOP (Small Outline Package) NS package and is characterized for operation from 0°C to 70°C.
Key Specifications
| Parameter | Unit | Min | Nom | Max |
|---|---|---|---|---|
| VCC (Supply Voltage) | V | 4.5 | 5 | 5.5 |
| VIH (High-Level Input Voltage) | V | 2 | ||
| VIL (Low-Level Input Voltage) | V | 0.7 | ||
| IOH (High-Level Output Current) | mA | -1 | -2.6 | |
| IOL (Low-Level Output Current) | mA | 12 | 24 | |
| fclock (Clock Frequency) | MHz | 0 | 35 | |
| tw (Pulse Duration, CLK High/Low) | ns | 14 | ||
| tsu (Setup Time before CLK↑) | ns | 15 | ||
| th (Hold Time, Data after CLK↑) | ns | 0 | ||
| TA (Operating Free-Air Temperature) | °C | 0 | 70 |
Key Features
- Contains eight D-type flip-flops with single-rail outputs.
- Buffered clock and direct-clear inputs.
- Individual data input to each flip-flop.
- Positive-edge triggered.
- Available in SOP (Small Outline Package) NS package.
- Compliant with RoHS (Restriction of Hazardous Substances) regulations.
Applications
- Buffer/Storage Registers.
- Shift Registers.
- Pattern Generators.
Q & A
- What is the SN74ALS273NSR used for?
The SN74ALS273NSR is used as an octal D-type flip-flop, which can be applied in various digital circuits such as buffer/storage registers, shift registers, and pattern generators.
- What is the operating temperature range of the SN74ALS273NSR?
The operating temperature range of the SN74ALS273NSR is from 0°C to 70°C.
- What is the maximum clock frequency for the SN74ALS273NSR?
The maximum clock frequency for the SN74ALS273NSR is 35 MHz.
- What type of package does the SN74ALS273NSR come in?
The SN74ALS273NSR comes in a 20-pin SOP (Small Outline Package) NS package.
- Is the SN74ALS273NSR RoHS compliant?
Yes, the SN74ALS273NSR is RoHS compliant.
- What is the setup time before the clock rising edge for the SN74ALS273NSR?
The setup time before the clock rising edge for the SN74ALS273NSR is 15 ns.
- What is the hold time for data after the clock rising edge for the SN74ALS273NSR?
The hold time for data after the clock rising edge for the SN74ALS273NSR is 0 ns.
- What are the absolute maximum ratings for the supply voltage of the SN74ALS273NSR?
The absolute maximum rating for the supply voltage of the SN74ALS273NSR is 7 V.
- What are the typical high-level and low-level output currents for the SN74ALS273NSR?
The typical high-level output current is -2.6 mA, and the typical low-level output current is 24 mA.
- What is the recommended operating supply voltage range for the SN74ALS273NSR?
The recommended operating supply voltage range for the SN74ALS273NSR is from 4.5 V to 5.5 V.
