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74HC166DB,112
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Shift Register
- Characteristics: Serial-In, Parallel-Out, 8-bit, Synchronous
- Package: SOIC (Small Outline Integrated Circuit)
- Essence: High-Speed CMOS Logic
- Packaging/Quantity: Tape and Reel, 2500 pieces per reel
Specifications
- Supply Voltage Range: 2V to 6V
- Input Voltage Range: 0V to VCC
- Output Voltage Range: 0V to VCC
- Operating Temperature Range: -40°C to +125°C
- Maximum Clock Frequency: 80 MHz
- Maximum Data Rate: 8 Mbps
Detailed Pin Configuration
The 74HC166DB,112 has a total of 16 pins. The pin configuration is as follows:
- SER (Serial Data Input)
- QA (Parallel Output A)
- QB (Parallel Output B)
- QC (Parallel Output C)
- QD (Parallel Output D)
- QE (Parallel Output E)
- QF (Parallel Output F)
- QG (Parallel Output G)
- CLK (Clock Input)
- MR (Master Reset Input)
- GND (Ground)
- QH' (Serial Output)
- DS (Serial Data Input)
- OE (Output Enable)
- VCC (Supply Voltage)
- QH (Serial Output)
Functional Features
- Serial-in, parallel-out shift register
- Synchronous operation with a clock input
- Master reset input for clearing the register
- Output enable input for controlling the outputs
- High-speed CMOS logic for fast data transfer
- Wide supply voltage range for flexibility in different applications
Advantages and Disadvantages
Advantages: - High-speed operation allows for quick data processing - Synchronous operation ensures accurate and reliable data transfer - Wide supply voltage range makes it compatible with various systems - Small package size saves board space
Disadvantages: - Limited number of parallel outputs (8 bits) - Requires an external clock signal for operation
Working Principles
The 74HC166DB,112 is a serial-in, parallel-out shift register. It receives data serially through the SER pin and shifts it into the register on each rising edge of the clock input (CLK). The parallel outputs (QA to QH) reflect the current state of the register. The master reset input (MR) can be used to clear the register to its initial state. The output enable input (OE) controls whether the parallel outputs are active or in a high-impedance state.
Detailed Application Field Plans
The 74HC166DB,112 can be used in various applications that require serial-to-parallel data conversion. Some potential application fields include: 1. Data communication systems 2. Industrial automation 3. Test and measurement equipment 4. Robotics 5. LED matrix displays
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to the 74HC166DB,112 are: 1. SN74HC166N by Texas Instruments 2. CD74HC166E by Texas Instruments 3. MC74HC166AN by ON Semiconductor 4. 74HC166D by NXP Semiconductors
These alternative models have comparable specifications and pin configurations, providing options for different sourcing preferences.
Word count: 398 words
Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng 74HC166DB,112 trong giải pháp kỹ thuật
Sure! Here are 10 common questions and answers related to the application of 74HC166DB,112 in technical solutions:
Q: What is the 74HC166DB,112? A: The 74HC166DB,112 is a 8-bit parallel-in/serial-out shift register with asynchronous reset.
Q: What is the purpose of a shift register? A: A shift register is used to expand the number of available input or output pins on a microcontroller or other digital device.
Q: How many inputs does the 74HC166DB,112 have? A: The 74HC166DB,112 has 8 parallel inputs.
Q: Can the 74HC166DB,112 be used for both input and output expansion? A: No, the 74HC166DB,112 is primarily used for input expansion. For output expansion, you would typically use a shift register with serial-in/parallel-out functionality.
Q: How does the asynchronous reset work on the 74HC166DB,112? A: When the asynchronous reset pin (RESET) is pulled low, it clears the shift register and sets all outputs to a known state.
Q: What is the maximum clock frequency supported by the 74HC166DB,112? A: The 74HC166DB,112 can operate at a maximum clock frequency of 25 MHz.
Q: Can the 74HC166DB,112 be cascaded to increase the number of inputs? A: Yes, multiple 74HC166DB,112 shift registers can be cascaded together to expand the number of inputs.
Q: What is the power supply voltage range for the 74HC166DB,112? A: The 74HC166DB,112 operates with a power supply voltage range of 2 V to 6 V.
Q: Does the 74HC166DB,112 have any built-in debounce circuitry? A: No, the 74HC166DB,112 does not have built-in debounce circuitry. External debouncing may be required for noisy input signals.
Q: What is the package type of the 74HC166DB,112? A: The 74HC166DB,112 is available in a TSSOP-16 package.
Please note that the specific details and features of the 74HC166DB,112 may vary, so it's always recommended to refer to the datasheet for accurate information.