SN74HC259DRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Storage and Control
• Characteristics: High-Speed, 8-Bit Addressable Latch
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Sequential Logic Device
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V to VCC
• Low-Level Input Voltage: GND to 0.8V
• High-Level Output Current: -6mA
• Low-Level Output Current: 6mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND (Ground)
2. D0 (Data Input 0)
3. D1 (Data Input 1)
4. D2 (Data Input 2)
5. D3 (Data Input 3)
6. D4 (Data Input 4)
7. D5 (Data Input 5)
8. D6 (Data Input 6)
9. D7 (Data Input 7)
10. MR (Master Reset)
11. SH/LD (Shift/Load)
12. CLK (Clock)
13. QA (Output A)
14. QB (Output B)
15. QC (Output C)
16. QD (Output D)
17. QE (Output E)
18. QF (Output F)
19. QG (Output G)
20. QH (Output H)
21. VCC (Supply Voltage)

Functional Features

• 8-bit addressable latch with a common clock and reset
• Can be used as a memory element or for data storage and control applications
• Shift/Load input allows parallel loading of the data
• Outputs can be enabled or disabled using the Master Reset (MR) input
• High-speed operation with a wide supply voltage range

Advantages and Disadvantages

Advantages

• Versatile and flexible for various data storage and control applications
• High-speed operation allows for efficient data processing
• Wide supply voltage range provides compatibility with different systems
• Compact SOIC package offers space-saving integration

Disadvantages

• Limited number of outputs (8 bits)
• Requires external clock and reset signals for proper operation
• Not suitable for applications requiring higher bit capacity

Working Principles

The SN74HC259DRG4 is a sequential logic device that consists of eight D-type flip-flops with 3-state outputs. It operates based on clock and reset signals to store and control data. The shift/load input allows parallel loading of the data, while the master reset input enables or disables the outputs. The device functions by latching the input data on the rising edge of the clock signal and holding it until a new data load occurs.

Detailed Application Field Plans

The SN74HC259DRG4 can be used in various applications, including:

1. Address decoding in microcontrollers and microprocessors
2. Data storage and control in digital systems
3. Multiplexing and demultiplexing operations
4. Register-based operations in communication systems
5. Control and synchronization of peripheral devices

Detailed and Complete Alternative Models

1. CD74HC259E: Similar 8-bit addressable latch with DIP (Dual Inline Package) packaging.
2. SN74LS259N: 8-bit addressable latch with TTL (Transistor-Transistor Logic) technology.
3. MC74HC259AN: 8-bit addressable latch with CMOS (Complementary Metal-Oxide-Semiconductor) technology.

Note: These alternative models may have slight differences in specifications and pin configuration. It is recommended to refer to their respective datasheets for detailed information.

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