Overview
The 74HC166D/AUJ, produced by NXP USA Inc., is an 8-bit parallel-in/serial-out shift register. This integrated circuit is part of the 74HC and 74HCT family, known for their high noise immunity and low power dissipation. The device is versatile, allowing for both parallel and serial data input, making it suitable for a wide range of applications in various industries.
Key Specifications
| Parameter | Value |
|---|---|
| Type Number | 74HC166D/AUJ |
| Package | 16-SOIC (0.154", 3.90mm Width) |
| Supply Voltage (VCC) | 2.0 V to 6.0 V |
| Operating Temperature | -40°C to +125°C |
| Logic Switching Levels | CMOS |
| Output Drive Capability | ± 5.2 mA |
| Propagation Delay (tpd) | 15 ns |
| Maximum Clock Frequency (fmax) | 63 MHz |
| Number of Bits | 8 |
| Power Dissipation | Low power dissipation |
Key Features
- 8-bit parallel-in/serial-out shift register with serial data input (DS) and eight parallel data inputs (D0 to D7).
- Serial output (Q7) for synchronous parallel-to-serial applications.
- Parallel enable input (PE) and clock enable input (CE) for flexible data loading and shifting.
- Inputs include clamp diodes for interfacing with voltages in excess of VCC.
- High noise immunity and latch-up performance exceeding 100 mA per JESD 78 Class II Level B.
- Compliance with JEDEC standards for HBM and CDM ESD protection.
Applications
The 74HC166D/AUJ is suitable for various applications across different industries, including:
- Automotive systems requiring robust and reliable data transfer.
- Industrial control systems where high noise immunity is crucial.
- Consumer electronics needing efficient and low-power data processing.
- Computing and communication systems requiring synchronous serial data transfer.
Q & A
- What is the primary function of the 74HC166D/AUJ?
The primary function is to act as an 8-bit parallel-in/serial-out shift register. - What is the supply voltage range for the 74HC166D/AUJ?
The supply voltage range is from 2.0 V to 6.0 V. - What are the operating temperature ranges for this device?
The operating temperature ranges are from -40°C to +125°C. - What type of logic switching levels does the 74HC166D/AUJ use?
The device uses CMOS logic switching levels. - What is the maximum clock frequency for the 74HC166D/AUJ?
The maximum clock frequency is 63 MHz. - Does the 74HC166D/AUJ have ESD protection?
Yes, it complies with JEDEC standards for HBM and CDM ESD protection. - What package type is the 74HC166D/AUJ available in?
The device is available in a 16-SOIC package. - What are the key features of the parallel enable input (PE) and clock enable input (CE)?
The PE input allows data to be loaded in parallel, while the CE input controls the shifting of data based on the clock input. - How does the device handle inputs exceeding VCC?
The inputs include clamp diodes that enable the use of current limiting resistors to interface with voltages in excess of VCC. - What industries can benefit from using the 74HC166D/AUJ?
The device is beneficial in automotive, industrial, consumer electronics, computing, and communication systems.
