Overview
The SN74LS393NSR, manufactured by Texas Instruments, is a dual 4-bit binary counter integrated circuit (IC) designed for use in digital logic applications. This model is part of the 74LS series, known for its low power consumption and high-speed operation. The SN74LS393NSR is particularly suited for applications requiring binary counting, frequency division, and digital event counting. Its market positioning targets engineers and designers in industries such as consumer electronics, automotive, and industrial automation, where reliable and efficient digital counters are essential.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Logic Type | Binary Counter | - | Dual 4-bit |
| Direction | Up | - | - |
| Number of Elements | 2 | - | - |
| Bits per Element | 4 | - | - |
| Reset | Asynchronous | - | - |
| Count Rate | 35 | MHz | - |
| Trigger Type | Negative Edge | - | - |
| Supply Voltage | 4.75 to 5.25 | V | - |
| Operating Temperature | 0 to 70 | °C | - |
| Package | 14-SOIC | - | - |
Key Features
- Dual 4-bit binary counter for versatile counting applications.
- Low power consumption, making it ideal for battery-operated devices.
- High-speed operation with a count rate of up to 35 MHz.
- Asynchronous reset for immediate counter initialization.
- Negative edge-triggered clock input for precise timing control.
Applications
The SN74LS393NSR is widely used in digital systems where binary counting and frequency division are required. Typical applications include:
- Consumer electronics: Used in digital clocks, timers, and event counters.
- Automotive: Employed in vehicle control systems for monitoring and counting events.
- Industrial automation: Integrated into machinery for process control and event counting.
- Communication systems: Utilized in frequency division circuits for signal processing.
Q & A
What is the operating voltage range of the SN74LS393NSR?
The operating voltage range is 4.75 V to 5.25 V.
What is the maximum count rate of this IC?
The maximum count rate is 35 MHz.
Does the SN74LS393NSR support asynchronous reset?
Yes, it features an asynchronous reset function.
What is the trigger type for the clock input?
The clock input is negative edge-triggered.
What is the package type of the SN74LS393NSR?
It comes in a 14-SOIC package.
Is this IC suitable for high-speed applications?
Yes, with a count rate of up to 35 MHz, it is suitable for high-speed applications.
Can the SN74LS393NSR be used in automotive applications?
Yes, it is commonly used in automotive control systems.
What is the operating temperature range?
The operating temperature range is 0°C to 70°C.
How many bits does each counter element have?
Each counter element is 4-bit.
Is the SN74LS393NSR part of the 74LS series?
Yes, it belongs to the 74LS series of logic ICs.
