CD74HCT165M Allicdata Electronics
Allicdata Part #:

296-9258-5-ND

Manufacturer Part#:

CD74HCT165M

Price: $ 0.46
Product Category:

Integrated Circuits (ICs)

Manufacturer: Texas Instruments
Short Description: IC 8-BIT SHIFT REGISTER 16-SOIC
More Detail: N/A
DataSheet: CD74HCT165M datasheetCD74HCT165M Datasheet/PDF
Quantity: 5567
1 +: $ 0.40950
10 +: $ 0.35217
100 +: $ 0.26284
500 +: $ 0.20651
1000 +: $ 0.15958
Stock 5567Can Ship Immediately
$ 0.46
Specifications
Series: 74HCT
Packaging: Tube 
Part Status: Active
Logic Type: Shift Register
Output Type: Complementary
Number of Elements: 1
Number of Bits per Element: 8
Function: Parallel or Serial to Serial
Voltage - Supply: 4.5 V ~ 5.5 V
Operating Temperature: -55°C ~ 125°C
Mounting Type: Surface Mount
Package / Case: 16-SOIC (0.154", 3.90mm Width)
Supplier Device Package: 16-SOIC
Base Part Number: 74HCT165
Description

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The CD74HCT165M is a high speed CMOS logic shift register, designed for use in basic logic applications such as logic level translation, buffering, and multiplexing. It is a common 8-bit parallel in/serial out shift register with an asynchronous parallel load capability. It is compatible with the industry standard 74HCT165 register family and can handle clock frequencies up to 80 MHz.

Typical Applications

The CD74HCT165M can be used for a variety of purposes, including:
  • Transmission of signals from one logic level to another
  • Data buffering and synchronization between logic levels
  • Multiplexing of digital data between data sources
  • Generation of data patterns
  • Use as a low-to-high or a high-to-low frequency converter
  • Generation of shift clocks for several kinds of synchronous data transfer devices

Working Principle

The CD74HCT165M is an 8-bit parallel in/serial out shift register. Its operation is divided into four basic parts: parallel loading, shifting, timing and clock control, and output control.

Parallel Loading

Parallel loading is the process of loading an entire 8-bit word into the register at once. This is achieved by setting the parallel load input (PL) high and presenting a valid 8-bit data word on the parallel inputs (D0-D7).

Shifting

The CD74HCT165M is a universal shift register, meaning that it can shift data in either direction, depending on the level of its shift/load (SL) input. When the SL input is low, the register shifts serial data from the Serial Data Input (SI) to the Serial Data Output (SO) on the rising edge of the Clock (CLK) input. This shift operates in a standard left to right direction for positive CLK edges and in a standard right to left direction for negative CLK edges.

Timing and Clock Control

The CD74HCT165M has asynchronous and synchronous modes of operation. Asynchronous mode is used when the CLK input is held low for the entire duration of the shift. This results in the data, once loaded, being shifted at the rate of the PL input, which is independent of the CLK input. In synchronous mode, the data is shifted in response to a rising or falling edge of the CLK input in the appropriate direction.

Output Control

The CD74HCT165M has two complementary outputs: the Serial Output (SO) and the Serial Out Invert (SI). The SO output is used to provide shifted data in a serial data stream format and can be used to generate shift clocks for synchronous data transfer devices. The SI output is used to shift data in the opposite direction of the SO output.

Conclusion

The CD74HCT165M is a versatile shift register with a wide range of potential applications, from level translation and buffering to multiplexing and data pattern generation. It provides clock speeds up to 80 MHz and can operate in either synchronous or asynchronous modes. This makes the CD74HCT165M an ideal choice for high-speed digital data transfer and manipulation operations.

The specific data is subject to PDF, and the above content is for reference

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