Overview
The SN74ALS273DWRG4 is an octal D-type flip-flop integrated circuit produced by Texas Instruments. This device 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 rising edge of the clock pulse. The SN74ALS273DWRG4 is available in a 20-pin SOIC (Small Outline Integrated Circuit) package and is characterized for operation from 0°C to 70°C.
Key Specifications
| Parameter | Unit | Min | Nom | Max |
|---|---|---|---|---|
| Supply Voltage (VCC) | V | 4.5 | 5 | 5.5 |
| High-Level Input Voltage (VIH) | V | 2 | 2 | 2 |
| Low-Level Input Voltage (VIL) | V | 0.7 | 0.8 | 0.8 |
| High-Level Output Current (IOH) | mA | -1 | -2.6 | -2.6 |
| Low-Level Output Current (IOL) | mA | 12 | 24 | 24 |
| Clock Frequency (fclock) | MHz | 0 | 35 | 35 |
| Operating Free-Air Temperature (TA) | °C | 0 | 70 | 70 |
| Setup Time Before CLK↑ (tsu) | ns | 15 | 15 | 15 |
| Hold Time, Data After CLK↑ (th) | ns | 0 | 0 | 0 |
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 various package options including SOIC (DW), PDIP (N), and LCCC (FK).
Applications
- Buffer/Storage Registers.
- Shift Registers.
- Pattern Generators.
Q & A
- What is the SN74ALS273DWRG4 used for?
The SN74ALS273DWRG4 is used for implementing D-type flip-flop logic in various digital circuits, including buffer/storage registers, shift registers, and pattern generators.
- What is the operating temperature range of the SN74ALS273DWRG4?
The SN74ALS273DWRG4 operates from 0°C to 70°C.
- What is the maximum clock frequency for the SN74ALS273DWRG4?
The maximum clock frequency for the SN74ALS273DWRG4 is 35 MHz.
- What are the package options available for the SN74ALS273DWRG4?
The SN74ALS273DWRG4 is available in SOIC (DW), PDIP (N), and LCCC (FK) packages.
- How many flip-flops does the SN74ALS273DWRG4 contain?
The SN74ALS273DWRG4 contains eight D-type flip-flops.
- What is the setup time before the clock rising edge for the SN74ALS273DWRG4?
The setup time before the clock rising edge is 15 ns.
- Does the SN74ALS273DWRG4 have a direct-clear input?
Yes, the SN74ALS273DWRG4 has a direct-clear (CLR) input.
- What type of logic does the SN74ALS273DWRG4 use?
The SN74ALS273DWRG4 uses TTL (Transistor-Transistor Logic) circuitry.
- Is the SN74ALS273DWRG4 positive-edge triggered?
Yes, the SN74ALS273DWRG4 is positive-edge triggered.
- What is the maximum supply voltage for the SN74ALS273DWRG4?
The maximum supply voltage for the SN74ALS273DWRG4 is 5.5 V.
