Overview
The 74HC161DB,118 is a synchronous presettable binary counter produced by Nexperia USA Inc. This integrated circuit is part of the 74HC series, known for its high-speed CMOS logic. The device features an internal look-ahead carry, which enables synchronous operation by clocking all flip-flops simultaneously. Although the 74HC161DB,118 is currently obsolete and no longer manufactured, it remains relevant for understanding and maintaining existing designs that incorporate this component.
Key Specifications
| Parameter | Value |
|---|---|
| Type Number | 74HC161DB |
| Package Name | SSOP16 (SOT338-1) |
| Package Dimensions | 6.2 mm x 5.3 mm x 2 mm |
| Lead Pitch | 0.65 mm |
| Logic Type | Counter, Binary |
| Number of Bits per Element | 4 |
| Reset Type | Asynchronous |
| Timing | Synchronous |
| Count Rate | Up to 66 MHz |
| Trigger Type | Positive Edge |
| Voltage - Supply | 2 V ~ 6 V |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
Key Features
- Synchronous Operation: All flip-flops are clocked simultaneously, ensuring synchronized counting.
- Internal Look-Ahead Carry: Enhances the speed of the counter by allowing carry signals to be generated internally.
- Asynchronous Reset: Allows for immediate reset of the counter regardless of the clock state.
- High-Speed CMOS Logic: Part of the 74HC series, known for its high-speed and low power consumption.
- Wide Operating Voltage Range: Operates from 2 V to 6 V, making it versatile for various applications.
- Wide Operating Temperature Range: Functional from -40°C to 125°C, suitable for harsh environments.
Applications
- Digital Counting Systems: Used in digital counters, frequency dividers, and other counting applications.
- Automotive Electronics: Suitable for use in automotive systems due to its wide operating temperature range and robust design.
- Industrial Control Systems: Applied in industrial control systems where synchronized counting and high-speed operations are required.
- Consumer Electronics: Found in various consumer electronic devices requiring digital counting functions.
Q & A
- What is the 74HC161DB,118?
The 74HC161DB,118 is a synchronous presettable binary counter produced by Nexperia USA Inc.
- What package type does the 74HC161DB,118 use?
The 74HC161DB,118 uses the SSOP16 (SOT338-1) package.
- What is the maximum count rate of the 74HC161DB,118?
The maximum count rate is up to 66 MHz.
- What is the operating voltage range of the 74HC161DB,118?
The operating voltage range is from 2 V to 6 V.
- Is the 74HC161DB,118 still in production?
No, the 74HC161DB,118 is obsolete and no longer manufactured.
- What type of reset does the 74HC161DB,118 have?
The 74HC161DB,118 has an asynchronous reset.
- What is the trigger type of the 74HC161DB,118?
The trigger type is positive edge.
- What are the dimensions of the SSOP16 package?
The dimensions are 6.2 mm x 5.3 mm x 2 mm.
- What is the lead pitch of the SSOP16 package?
The lead pitch is 0.65 mm.
- What is the operating temperature range of the 74HC161DB,118?
The operating temperature range is from -40°C to 125°C.
