SN74ALS29854DWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: High-speed, Low-power, 8-bit Universal Shift/Storage Register
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Serial-to-Parallel and Parallel-to-Serial Data Conversion
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Input/Output Compatibility: TTL (Transistor-Transistor Logic)
• Maximum Clock Frequency: 100 MHz
• Number of Bits: 8
• Number of Inputs: 3
• Number of Outputs: 8

Detailed Pin Configuration

1. SER (Serial Data Input)
2. CLK (Clock Input)
3. RCLK (Register Clock Input)
4. SRCLR (Shift Register Clear Input)
5. OE (Output Enable Input)
6. QA-QH (Parallel Data Outputs)
7. GND (Ground)
8. VCC (Supply Voltage)

Functional Features

• Serial-to-Parallel Conversion: The SN74ALS29854DWR can convert serial data into parallel data using the SER input and the CLK clock signal.
• Parallel-to-Serial Conversion: It can also convert parallel data into serial data using the RCLK register clock input.
• Shift Register Clear: The SRCLR input allows clearing the shift register.
• Output Enable: The OE input enables or disables the outputs.
• High-Speed Operation: The IC operates at a maximum clock frequency of 100 MHz.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data processing. - Low power consumption makes it suitable for battery-powered devices. - Versatile functionality enables various data conversion operations. - Compact SOIC package saves space on the circuit board.

Disadvantages: - Limited number of inputs and outputs may restrict complex applications. - Requires external clock signal for proper operation.

Working Principles

The SN74ALS29854DWR is a universal shift/storage register that can perform serial-to-parallel and parallel-to-serial data conversion. It consists of an 8-bit shift register, latch, and control logic. The SER input receives serial data, which is then shifted into the shift register on each rising edge of the CLK clock signal. The RCLK input latches the parallel data from the shift register onto the QA-QH outputs. The SRCLR input clears the shift register when activated. The OE input enables or disables the outputs.

Detailed Application Field Plans

The SN74ALS29854DWR is commonly used in various digital systems, including:

1. Data Communication: Serial-to-parallel conversion is essential in communication protocols such as UART (Universal Asynchronous Receiver-Transmitter) and SPI (Serial Peripheral Interface).
2. Display Systems: Parallel-to-serial conversion is required to drive LED displays, LCD panels, and other visual output devices.
3. Memory Interfaces: The IC can be used in memory systems to convert between serial and parallel data formats.
4. Industrial Control: It finds applications in control systems where data needs to be converted between different formats.

Detailed and Complete Alternative Models

1. SN74ALS29854N: DIP (Dual In-line Package) version of the same IC.
2. CD74HC595E: 8-bit shift register with similar functionality but operates at a lower voltage range.
3. SN74LS164N: 8-bit shift register without storage capability, suitable for simple shift register applications.

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