SN74ALS29854DWRG4

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 Type: TTL (Transistor-Transistor Logic)
• Number of Bits: 8
• Clock Frequency: Up to 100 MHz
• Data Transfer Rate: Up to 200 Mbps
• Output Drive Capability: ±24 mA
• Power Dissipation: 500 mW (max)

Detailed Pin Configuration

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

Functional Features

• Serial-to-parallel and parallel-to-serial data conversion
• Shift register with parallel load capability
• Asynchronous clear function for resetting the shift register
• High-speed operation with TTL-compatible inputs and outputs
• Wide supply voltage range for flexibility in various applications

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Low power consumption for energy-efficient designs - Versatile functionality with serial-to-parallel and parallel-to-serial conversion - Wide supply voltage range enables compatibility with different systems

Disadvantages: - Limited number of bits (8) may not be suitable for applications requiring larger data storage - TTL compatibility may restrict usage in systems that utilize different logic families

Working Principles

The SN74ALS29854DWRG4 is an 8-bit universal shift/storage register. It can convert serial data to parallel output or parallel data to serial output, depending on the mode of operation. The shift register has a parallel load capability, allowing data to be loaded into the register in parallel.

The clock input controls the shifting of data through the register. When the clock signal transitions from low to high, the data at the serial input (SER) is shifted into the first stage of the register. Subsequent clock pulses shift the data through the remaining stages.

The parallel load/clock enable input (RCLK) determines whether the data is loaded in parallel or shifted through the register. When RCLK is low, the data is shifted. When RCLK is high, the data at the parallel inputs (QA-QH) is loaded into the register.

The shift register clear input (SRCLR) asynchronously resets the register when activated. This clears all the stored data and sets the outputs to a known state.

Detailed Application Field Plans

The SN74ALS29854DWRG4 can be used in various applications, including:

1. Serial-to-parallel data conversion in communication systems
2. Parallel-to-serial data conversion in data transmission systems
3. Data storage and retrieval in memory systems
4. Shift register applications in digital signal processing
5. Control and synchronization circuits in industrial automation

Detailed and Complete Alternative Models

1. SN74ALS29854N - DIP (Dual Inline Package) version of the same IC
2. SN74ALS29854PW - TSSOP (Thin Shrink Small Outline Package) version with smaller footprint
3. SN74ALS29854QDRQ1 - Automotive-grade version with enhanced temperature and reliability specifications

These alternative models offer similar functionality but may differ in package type, pin configuration, or operating temperature range.

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