Overview
The 74LVC161DB118 is a presettable synchronous 4-bit binary counter produced by NXP USA Inc. This component is part of the 74LVC series, known for its low power consumption and compatibility with both 3.3 V and 5 V logic levels. The 74LVC161DB118 features an internal look-ahead carry, which simplifies serial cascading of counters, and it includes asynchronous reset functionality. Although this specific part number has been discontinued, it remains relevant for understanding the capabilities and applications of similar binary counters.
Key Specifications
| Product Attribute | Attribute Value |
|---|---|
| Manufacturer | NXP USA Inc. |
| Voltage - Supply | 1.2 V to 3.6 V |
| Trigger Type | Positive Edge |
| Timing | Synchronous |
| Package / Case | 16-SSOP (SOT338-1) |
| Operating Temperature | -40°C to +125°C |
| Mounting Type | Surface Mount |
| Logic Type | Binary Counter |
| Number of Bits per Element | 4 |
| Direction | Up |
| Reset | Asynchronous |
| RoHS Status | ROHS Compliant |
Key Features
- Synchronous Counting and Loading: The counter operates synchronously, with all flip-flops clocked simultaneously on the positive-going edge of the clock.
- Asynchronous Reset: A LOW at the master reset input sets Q0 to Q3 LOW regardless of the levels at input pins CP, PE, CET, and CEP.
- Look-Ahead Carry: Simplifies serial cascading of the counters.
- Overvoltage Tolerant Inputs: Inputs can be driven from either 3.3 V or 5 V devices, making it suitable for mixed voltage environments.
- CMOS Low Power Dissipation: Low power consumption.
- Direct Interface with TTL Levels: Compatible with TTL logic levels.
- ESD Protection: HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V.
- Schmitt-Trigger Action: Tolerant of slower input rise and fall times.
Applications
- Digital Counting Systems: Used in various digital counting applications where synchronous counting is required.
- Automated Systems: Suitable for use in automated systems that require precise counting and control.
- Mixed Voltage Environments: Ideal for systems that operate with both 3.3 V and 5 V logic levels.
- Industrial & IoT Devices: Can be used in industrial and IoT devices that require low power consumption and robust ESD protection.
Q & A
- What is the voltage supply range for the 74LVC161DB118?
The voltage supply range is from 1.2 V to 3.6 V.
- What type of reset does the 74LVC161DB118 have?
The 74LVC161DB118 has an asynchronous reset.
- What is the operating temperature range for this component?
The operating temperature range is from -40°C to +125°C.
- Is the 74LVC161DB118 RoHS compliant?
Yes, the 74LVC161DB118 is RoHS compliant.
- What is the package type for the 74LVC161DB118?
The package type is 16-SSOP (SOT338-1).
- Can the 74LVC161DB118 be used in mixed voltage environments?
Yes, it can be driven from either 3.3 V or 5 V devices.
- What is the count rate of the 74LVC161DB118?
The specific count rate is not provided in the available sources, but it is designed for high-speed applications.
- Does the 74LVC161DB118 have ESD protection?
Yes, it has ESD protection: HBM exceeds 2000 V and CDM exceeds 1000 V).
- Is the 74LVC161DB118 suitable for surface mount?
Yes, it is designed for surface mount applications).
- What is the logic type of the 74LVC161DB118?
The logic type is a binary counter).
