Overview
The 74HCT393DB,112 is a dual 4-bit binary ripple counter produced by NXP Semiconductors. This integrated circuit is part of the 74HCT series, known for its compatibility with TTL (Transistor-Transistor Logic) input levels. Each counter in the 74HCT393DB features a clock input, an overriding asynchronous master reset input, and four buffered parallel outputs. The counters advance on the HIGH-to-LOW transition of the clock input, and a HIGH on the master reset input clears the counter stages and forces the outputs LOW, independent of the clock state.
Key Specifications
| Product Attribute | Attribute Value |
|---|---|
| Manufacturer | NXP Semiconductors |
| Voltage - Supply | 4.5 V ~ 5.5 V |
| Trigger Type | Negative Edge |
| Package / Case | 14-SSOP (0.209", 5.30mm Width) |
| Series | 74HCT |
| Reset | Asynchronous |
| Operating Temperature | -40°C ~ 125°C |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Mounting Type | Surface Mount |
| Logic Type | Binary Counter |
| Count Rate | 107 MHz |
| RoHs Status | ROHS3 Compliant |
Key Features
- Binary Counter Logic Type: Each counter is a 4-bit binary ripple counter.
- Asynchronous Reset: The counters have an overriding asynchronous master reset input.
- Negative Edge Trigger: The counters advance on the HIGH-to-LOW transition of the clock input.
- Wide Supply Voltage Range: Compatible with supply voltages from 4.5 V to 5.5 V.
- CMOS Low Power Dissipation: Low power consumption characteristic of CMOS technology.
- High Noise Immunity: Enhanced noise immunity due to CMOS design.
- ESD Protection: HBM (Human Body Model) and CDM (Charged Device Model) ESD protection exceeds industry standards.
- Individual Clocks and Resets: Each 4-bit counter has its own clock and reset inputs.
Applications
- Digital Counting Systems: Ideal for applications requiring binary counting, such as digital counters, timers, and frequency dividers.
- Sequential Logic Circuits: Used in sequential logic circuits where counting and timing functions are necessary.
- Automotive and Industrial Control Systems: Suitable for use in automotive and industrial control systems due to its robustness and wide operating temperature range.
- Consumer Electronics: Found in various consumer electronics requiring counting and timing functions, such as clocks, timers, and other digital devices.
Q & A
- What is the voltage supply range for the 74HCT393DB,112?
The voltage supply range is from 4.5 V to 5.5 V.
- What type of trigger does the 74HCT393DB,112 use?
The counter advances on the HIGH-to-LOW transition of the clock input, which is a negative edge trigger.
- What is the package type of the 74HCT393DB,112?
The package type is 14-SSOP (Shrink Small Outline Package).
- Does the 74HCT393DB,112 have ESD protection?
Yes, it has HBM and CDM ESD protection that exceeds industry standards.
- What is the operating temperature range of the 74HCT393DB,112?
The operating temperature range is from -40°C to 125°C.
- How many bits per element does the 74HCT393DB,112 have?
Each element is a 4-bit binary counter.
- Is the reset asynchronous or synchronous?
The reset is asynchronous.
- What is the count rate of the 74HCT393DB,112?
The count rate is up to 107 MHz.
- Is the 74HCT393DB,112 RoHS compliant?
Yes, it is ROHS3 compliant.
- What are the typical applications of the 74HCT393DB,112?
Typical applications include digital counting systems, sequential logic circuits, automotive and industrial control systems, and consumer electronics.
