Overview
The 74HC393PW,118, produced by NXP Semiconductors, is a dual 4-stage binary ripple counter. This integrated circuit is part of the 74HC series, known for its high performance and low power consumption. Each counter in the 74HC393 features a clock input (nCP), an overriding asynchronous master reset input (nMR), and four buffered parallel outputs (nQ0 to nQ3). The counter advances 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 input state.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCC (Supply Voltage) | 2.0 - 6.0 | V |
| Output Drive Capability | ± 5.2 | mA |
| Logic Switching Levels | CMOS | |
| tpd (Propagation Delay) | 12 (typical at VCC = 4.5 V) | ns |
| Power Dissipation Considerations | Low power dissipation | |
| Tamb (Ambient Temperature) | -40 to +125 | °C |
| Rth(j-a) (Junction-to-Ambient Thermal Resistance) | 128 | K/W |
| Package | TSSOP14 (SOT402-1) |
Key Features
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V.
- Low Power Dissipation: CMOS technology ensures low power consumption.
- High Noise Immunity: Provides robust performance in noisy environments.
- Latch-up Performance: Exceeds 100 mA per JESD 78 Class II Level B.
- Compliance with JEDEC Standards: Meets JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V) standards.
- ESD Protection: HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V.
- Input Clamp Diodes: Allows the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Applications
The 74HC393PW,118 is suitable for a variety of applications requiring binary counting and timing functions. These include:
- Digital Counters: Used in digital circuits where binary counting is necessary.
- Timing Circuits: Employed in timing and sequencing applications.
- Automotive Systems: Can be used in automotive electronics due to its robust performance and wide temperature range.
- Industrial Control Systems: Suitable for industrial control and automation systems requiring reliable counting and timing functions.
Q & A
- What is the supply voltage range of the 74HC393PW,118?
The supply voltage range is from 2.0 V to 6.0 V.
- What type of logic switching levels does the 74HC393PW,118 use?
The 74HC393PW,118 uses CMOS logic switching levels.
- What is the typical propagation delay of the 74HC393PW,118 at VCC = 4.5 V?
The typical propagation delay is 12 ns.
- Does the 74HC393PW,118 have ESD protection?
Yes, it has ESD protection: HBM exceeds 2000 V and CDM exceeds 1000 V.
- What is the package type of the 74HC393PW,118?
The package type is TSSOP14 (SOT402-1).
- How does the counter advance in the 74HC393PW,118?
The counter advances on the HIGH-to-LOW transition of the clock input (nCP).
- What is the effect of a HIGH on the master reset input (nMR)?
A HIGH on the master reset input clears the counter stages and forces the outputs LOW, independent of the clock input state.
- Does the 74HC393PW,118 include input clamp diodes?
Yes, it includes input clamp diodes, allowing the use of current limiting resistors to interface inputs to voltages in excess of VCC.
- What are the operating temperature ranges for the 74HC393PW,118?
The operating temperature range is from -40°C to +125°C.
- Is the 74HC393PW,118 compliant with JEDEC standards?
Yes, it complies with JESD8C and JESD7A standards.
