Overview
The CD74HCT393MT is a high-speed CMOS logic dual 4-bit binary counter produced by Texas Instruments. This component is designed for applications requiring reliable counting operations with minimal power consumption. It is part of the 74HCT series, known for its compatibility with LSTTL logic levels and robust performance across a wide temperature range. The CD74HCT393MT is ideal for use in industrial, automotive, and consumer electronics, offering features such as buffered inputs, a common reset, and edge-triggered clocking.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 4.5 - 5.5 | V | |
| Operating Temperature | -55 to 125 | °C | |
| Clock Frequency | 18 | MHz | |
| Number of Channels | 2 | ||
| Number of Bits | 4 | ||
| Package | SOIC-14 | ||
| Input Logic Compatibility | LSTTL, CMOS | ||
| Output Drive Capability | 10 LSTTL Loads | Standard Output | |
| Propagation Delay | 8 | ns | Typical at 5V |
| Power Consumption | Low | Compared to LSTTL |
Key Features
- Dual 4-bit binary counters with separate clocks and master reset.
- Buffered inputs for improved noise immunity.
- Edge-triggered clocking for precise counting operations.
- Wide operating temperature range from -55°C to 125°C.
- Compatible with LSTTL and CMOS logic levels.
- Low power consumption compared to LSTTL logic ICs.
Applications
The CD74HCT393MT is widely used in various electronic systems requiring counting functionality. Typical applications include industrial automation for process control, automotive electronics for sensor interfacing, and consumer electronics for timing and sequencing operations. Its robust design and compatibility with multiple logic levels make it suitable for use in harsh environments and high-reliability systems.
Q & A
1. What is the operating voltage range of the CD74HCT393MT?
The operating voltage range is 4.5V to 5.5V.
2. What is the maximum clock frequency supported?
The maximum clock frequency is 18 MHz.
3. Is the CD74HCT393MT compatible with LSTTL logic levels?
Yes, it is fully compatible with LSTTL logic levels.
4. What is the typical propagation delay of the device?
The typical propagation delay is 8 ns at 5V.
5. What is the operating temperature range?
The operating temperature range is -55°C to 125°C.
6. How many bits does each counter have?
Each counter is a 4-bit binary counter.
7. What is the package type of the CD74HCT393MT?
It is available in an SOIC-14 package.
8. Does the device have a master reset function?
Yes, it includes a common master reset for both counters.
9. What is the output drive capability of the device?
The standard output can drive 10 LSTTL loads.
10. What are the typical applications of the CD74HCT393MT?
Typical applications include industrial automation, automotive electronics, and consumer electronics.
