Encyclopedia Entry: 74HCT259BQ,115

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Device
• Characteristics: High-Speed, CMOS Technology
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: 8-Bit Addressable Latch/Shift Register
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.0V to 6.0V
• 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
• Number of Inputs/Outputs: 16
• Logic Family: HCT (High-Speed CMOS)

Detailed Pin Configuration

1. GND (Ground)
2. SER (Serial Data Input)
3. QA (Output A)
4. QB (Output B)
5. QC (Output C)
6. QD (Output D)
7. QE (Output E)
8. QF (Output F)
9. QG (Output G)
10. QH (Output H)
11. MR (Master Reset)
12. SH/LD (Shift/Load)
13. CLK (Clock Input)
14. OE (Output Enable)
15. VCC (Supply Voltage)
16. NC (No Connection)

Functional Features

• 8-bit addressable latch with serial input and parallel output capability
• Can be used as a shift register or storage register
• Serial data is shifted into the device on each rising edge of the clock signal
• Parallel outputs are updated when the shift/load input is low
• Master reset input allows clearing all outputs to a low state
• Output enable input allows disabling the outputs

Advantages

• High-speed operation due to CMOS technology
• Wide supply voltage range allows compatibility with various systems
• Versatile functionality as both a latch and shift register
• Compact SOIC package for space-saving designs
• Easy integration into existing digital logic circuits

Disadvantages

• Limited number of inputs/outputs (16)
• Requires external clock signal for operation
• Not suitable for high-voltage applications

Working Principles

The 74HCT259BQ,115 is an 8-bit addressable latch/shift register that can be used in various digital logic applications. It operates based on CMOS technology, which provides high-speed performance and low power consumption. The device has a serial data input (SER) and parallel outputs (QA-QH). When the shift/load input (SH/LD) is low, the serial data is shifted into the device on each rising edge of the clock input (CLK). The parallel outputs are updated when the shift/load input is low, allowing the stored data to be latched and outputted. The master reset input (MR) clears all outputs to a low state, while the output enable input (OE) can disable the outputs.

Detailed Application Field Plans

The 74HCT259BQ,115 can be utilized in various digital systems and applications, including: 1. Address decoding in microcontrollers and microprocessors 2. Data storage and retrieval in memory systems 3. Serial-to-parallel or parallel-to-serial data conversion 4. Multiplexing and demultiplexing of data signals 5. Control and sequencing of digital circuits 6. Shift register-based counters and timers 7. Interface circuitry between different logic families

Detailed and Complete Alternative Models

1. 74HC595: 8-Bit Serial-In, Parallel-Out Shift Register
2. CD4015: Dual 4-Stage Static Shift Register
3. SN74LS164: 8-Bit Serial-In, Parallel-Out Shift Register
4. CD4094: 8-Stage Shift-and-Store Bus Register
5. MC74HC595A: 8-Bit Serial-In, Parallel-Out Shift Register

Note: The above list is not exhaustive and there are several other alternative models available in the market.

In conclusion, the 74HCT259BQ,115 is a versatile integrated circuit that combines the functionality of an 8-bit addressable latch and shift register. Its high-speed operation, wide supply voltage range, and compact package make it suitable for various digital logic applications. However, it has limitations in terms of the number of inputs/outputs and voltage compatibility. Engineers can consider alternative models based on their specific requirements and system constraints.