74HCT259DB,112

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Storage and Control
• Characteristics: High-Speed, Low-Power, 8-Bit Addressable Latch/Shift Register
• Package: SSOP (Shrink Small Outline Package)
• Essence: A versatile IC that combines the functionality of an 8-bit latch and a shift register in one package.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.0V to 6.0V
• Input Voltage: -0.5V to VCC + 0.5V
• Output Voltage: -0.5V to VCC + 0.5V
• Operating Temperature Range: -40°C to +125°C
• Output Current: ±6mA
• Propagation Delay: 13ns (typical)
• Number of Pins: 16

Detailed Pin Configuration

1. GND - Ground
2. QA - Output A
3. QB - Output B
4. QC - Output C
5. QD - Output D
6. QE - Output E
7. QF - Output F
8. QG - Output G
9. QH - Output H
10. MR - Master Reset
11. SH/LD - Shift/Load
12. CLK - Clock
13. SER - Serial Data Input
14. OE - Output Enable
15. VCC - Power Supply
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 a storage register
• Supports both serial and parallel data transfer modes
• Allows individual control of each latch using the address inputs
• Provides asynchronous master reset for clearing the register
• Offers output enable control for multiplexing applications

Advantages and Disadvantages

Advantages: - Versatile functionality combining latch and shift register - High-speed operation - Low power consumption - Wide operating voltage range - Compact SSOP package for space-constrained designs

Disadvantages: - Limited number of addressable latches (8 bits) - Not suitable for applications requiring a larger number of outputs

Working Principles

The 74HCT259DB,112 operates by storing data in its 8-bit latch and shifting it out through the parallel outputs or serially through the serial output. The shift/load input determines whether the device is in shift mode or load mode. In shift mode, the data is shifted one bit at a time with each clock pulse. In load mode, the data is loaded into the latch when the shift/load input is high.

Detailed Application Field Plans

1. Digital Communication Systems: The 74HCT259DB,112 can be used for data buffering and synchronization in communication systems.
2. Industrial Automation: It can be employed in control systems to store and manipulate digital signals.
3. Display Drivers: The IC can be utilized in driving LED or LCD displays, providing addressable control for individual segments.
4. Data Storage Devices: It can be integrated into memory modules or storage devices for temporary data storage and retrieval.

Detailed and Complete Alternative Models

1. 74HC259DB,112: Similar to 74HCT259DB,112 but operates at higher speeds with slightly different electrical characteristics.
2. 74LS259: A TTL-compatible alternative with similar functionality but different voltage levels and power consumption.

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