Overview
The 74HCT393DB,118 is a dual 4-bit binary ripple counter integrated circuit produced by Nexperia USA Inc. This component is part of the 74HCT family, which is known for its high-speed CMOS logic. The device features fully static operation, making it suitable for a variety of digital circuit applications. Although the specific part number 74HCT393DB,118 is listed as obsolete, it remains relevant for understanding the capabilities and specifications of similar counters in the 74HCT series.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Package Type | SSOP14 (SOT337-1) | Surface Mount, 14-pin SSOP package |
| Voltage Range | 4.5 - 5.5 V | Operating voltage range |
| Logic Family | TTL (Transistor-Transistor Logic) | Logic family compatible with TTL levels |
| Number of Stages | 4 | Dual 4-bit binary ripple counter |
| Clock Input | Negative-edge triggered | Count advances on the negative transition of the clock pulse |
| Reset | Common reset (MR line) | A high voltage level on the MR line resets all counters to zero state |
| Temperature Range | -40°C to 125°C | Operating temperature range |
| Packing | Tape and Reel | Packing method for bulk orders |
Key Features
- Fully Static Operation: The counter operates without the need for a clock signal to maintain its state, reducing power consumption.
- Buffered Inputs and Outputs: All inputs and outputs are buffered, enhancing signal integrity and reducing noise.
- Negative-Edge Clocking: The counter stages advance on the negative transition of the clock pulse.
- Common Reset: A high voltage level on the MR (Master Reset) line resets all counters to their zero state.
- High Fanout Capability: The device can drive multiple logic inputs over a wide temperature range.
Applications
- Digital Counters and Timers: Used in applications requiring binary counting, such as frequency dividers, event counters, and timing circuits.
- Sequential Logic Circuits: Suitable for use in more complex sequential logic circuits where binary counting is necessary.
- Automotive and Industrial Control Systems: Due to its wide operating temperature range, it can be used in harsh environment applications.
- Consumer Electronics: Used in various consumer electronic devices that require digital counting functions.
Q & A
- What is the 74HCT393DB,118?
The 74HCT393DB,118 is a dual 4-bit binary ripple counter integrated circuit from Nexperia USA Inc.
- What is the operating voltage range of the 74HCT393DB,118?
The operating voltage range is 4.5 to 5.5 volts.
- How does the counter advance in the 74HCT393DB,118?
The counter stages advance on the negative transition of the clock pulse.
- How do you reset the counters in the 74HCT393DB,118?
A high voltage level on the MR (Master Reset) line resets all counters to their zero state.
- What is the temperature range for the 74HCT393DB,118?
The operating temperature range is -40°C to 125°C.
- Is the 74HCT393DB,118 still in production?
No, the 74HCT393DB,118 is listed as obsolete and no longer manufactured.
- What are some common applications of the 74HCT393DB,118?
It is used in digital counters, timers, sequential logic circuits, automotive and industrial control systems, and consumer electronics.
- What package type does the 74HCT393DB,118 come in?
The 74HCT393DB,118 comes in a SSOP14 (SOT337-1) package.
- Are the inputs and outputs of the 74HCT393DB,118 buffered?
- What logic family is the 74HCT393DB,118 compatible with?
The 74HCT393DB,118 is compatible with TTL (Transistor-Transistor Logic) levels.
