MC74HCT259ADTG

Product Overview

• Category: Integrated Circuit
• Use: Digital Logic
• Characteristics: High-Speed, CMOS Technology
• Package: TSSOP-16
• Essence: 8-Bit Addressable Latch/Shift Register
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 15ns (typical)
• Latch-Up Performance: ±300mA

Detailed Pin Configuration

The MC74HCT259ADTG has a total of 16 pins. The pin configuration is as follows:

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)

Functional Features

The MC74HCT259ADTG is an 8-bit addressable latch/shift register. It can be used to store and shift data in digital systems. The key features of this product include:

• Addressability: Each bit can be individually addressed and controlled.
• Shift Register: The data can be shifted in or out of the register.
• Latch Function: The data can be latched and held in place.

Advantages and Disadvantages

Advantages: - High-Speed Operation - CMOS Technology for low power consumption - Compact TSSOP-16 package for space-saving designs - Wide operating voltage range

Disadvantages: - Limited number of addressable bits (8 bits) - Propagation delay may affect timing-sensitive applications

Working Principles

The MC74HCT259ADTG operates based on CMOS technology. It consists of a latch and a shift register. When the SH/LD pin is high, the data is latched and stored in the register. When the SH/LD pin is low, the data can be shifted in or out of the register by toggling the CLK pin. The individual bits can be addressed using the address inputs (D0-D7).

Detailed Application Field Plans

The MC74HCT259ADTG can be used in various digital systems where data storage and shifting are required. Some potential application fields include:

1. Address Decoding: The device can be used to decode addresses in microcontrollers or memory systems.
2. Data Multiplexing: It can be used to multiplex data from multiple sources onto a single bus.
3. Serial-to-Parallel Conversion: The shift register functionality allows conversion of serial data to parallel format.
4. LED Display Control: The latch feature can be utilized to control LED displays by storing and updating the display data.

Detailed and Complete Alternative Models

1. 74HC595: 8-bit shift register with output latches.
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.

These alternative models offer similar functionality and can be considered as alternatives to the MC74HCT259ADTG based on specific requirements.

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