MC74HC259ADTR2G

Product Overview

• Category: Integrated Circuit
• Use: Data Storage and Control
• Characteristics: High-Speed, 8-Bit Addressable Latch/Shift Register
• Package: TSSOP-16
• Essence: The MC74HC259ADTR2G is a versatile integrated circuit that combines the functionality of an 8-bit latch and a shift register. It is designed to provide efficient data storage and control capabilities in various applications.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Supply Voltage: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Latch Enable Setup Time: 20 ns (maximum)
• Shift Register Clock Pulse Width: 20 ns (minimum)
• Output Current: ±25 mA
• Propagation Delay: 15 ns (typical)

Detailed Pin Configuration

The MC74HC259ADTR2G has a total of 16 pins, each serving a specific function:

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. SER: Serial Data Input
11. OE: Output Enable
12. MR: Master Reset
13. SH/LD: Shift/Load
14. CLK: Clock Input
15. VCC: Supply Voltage
16. NC: No Connection

Functional Features

• Combines an 8-bit latch and a shift register in a single package.
• Provides addressable storage for data.
• Allows parallel loading of data or serial shifting.
• Offers output enable and master reset functionalities for control.
• High-speed operation suitable for time-critical applications.

Advantages and Disadvantages

Advantages

• Compact integration of latch and shift register functionality.
• Versatile usage in various applications.
• High-speed operation for efficient data handling.
• Output enable and master reset features enhance control capabilities.

Disadvantages

• Limited to 8-bit data storage and control.
• Requires careful consideration of timing requirements in complex systems.

Working Principles

The MC74HC259ADTR2G operates by combining the functions of an 8-bit latch and a shift register. It can store data in its latch section or shift data through the register section. The shift/load input determines whether the device is in shift mode or load mode. In shift mode, the data is shifted through the register on each clock pulse. In load mode, the data is loaded into the latch on the rising edge of the clock signal.

Detailed Application Field Plans

The MC74HC259ADTR2G finds applications in various fields, including:

1. Data communication systems
2. Industrial automation
3. Automotive electronics
4. Consumer electronics
5. Instrumentation and measurement devices

In data communication systems, it can be used for addressable data storage and control. In industrial automation, it can facilitate control and monitoring tasks. In automotive electronics, it can be employed for data processing and control functions. In consumer electronics, it can enable efficient data handling and control. In instrumentation and measurement devices, it can provide addressable storage and control capabilities.

Detailed and Complete Alternative Models

1. SN74HC259N: Similar 8-bit addressable latch/shift register with DIP-16 package.
2. CD74HC259E: Equivalent 8-bit latch/shift register with PDIP-16 package.
3. 74HCT259: High-speed CMOS logic IC with similar functionality.

These alternative models offer similar functionality and can be used as substitutes for the MC74HC259ADTR2G in various applications.

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