SN74ALS667DWRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Function
• Characteristics: High-Speed, Low-Power, TTL-Compatible
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: 16-Bit Shift Register with Parallel Load
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Logic Family: ALS
• Number of Bits: 16
• Input Voltage: 2V to 6V
• Operating Temperature Range: -40°C to 85°C
• Propagation Delay: 9 ns (typical)
• Output Current: ±24 mA
• Supply Voltage: 4.5V to 5.5V
• Power Dissipation: 500 mW (max)

Detailed Pin Configuration

The SN74ALS667DWRG4 has a total of 20 pins. The pin configuration is as follows:

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

Functional Features

• 16-bit shift register with parallel load capability
• Serial data input with clock and register clock inputs
• Shift register clear input for clearing the register contents
• Output enable input for enabling/disabling the outputs
• TTL-compatible inputs and outputs
• High-speed operation with low power consumption

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick data processing - Low-power design helps in reducing energy consumption - TTL compatibility ensures easy integration with other logic circuits - Parallel load capability provides flexibility in data loading

Disadvantages: - Limited operating temperature range (-40°C to 85°C) - Propagation delay of 9 ns may not be suitable for certain high-speed applications - Power dissipation of 500 mW may require additional cooling measures in some cases

Working Principles

The SN74ALS667DWRG4 is a 16-bit shift register with parallel load functionality. It operates by shifting the data bits through the register based on the clock input. The serial data input (SER_IN) receives the data bit by bit, and the clock input (CLK) controls the shifting process. The register clock input (RCLK) latches the shifted data into the register.

The shift register clear input (SRCLR) allows for clearing the register contents when necessary. The output enable input (OE) enables or disables the outputs (QA-QH). The TTL-compatible inputs and outputs ensure compatibility with other TTL logic circuits.

Detailed Application Field Plans

The SN74ALS667DWRG4 can be used in various applications that require data storage and manipulation. Some potential application fields include:

1. Data Communication Systems: The shift register can be used for buffering and transmitting data in communication systems.
2. Digital Displays: The parallel load capability allows for easy control of digital displays, such as LED matrices.
3. Serial-to-Parallel Conversion: The shift register can convert serial data streams into parallel data for further processing.
4. Data Logging: The register can store data temporarily before it is processed or transmitted.
5. Industrial Automation: The IC can be utilized in automation systems for controlling and monitoring various processes.

Detailed and Complete Alternative Models

1. SN74ALS666DW: 8-Bit Shift Register with Parallel Load
2. SN74ALS668DW: 24-Bit Shift Register with Parallel Load
3. SN74ALS669DW: 32-Bit Shift Register with Parallel Load
4. SN74ALS670DW: 64-Bit Shift Register with Parallel Load

These alternative models offer different bit capacities while maintaining similar functionality and characteristics to the SN74ALS667DWRG4.

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