MM74HC259MTC

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Storage and Control
• Characteristics: High-Speed, 8-Bit Addressable Latch/Shift Register
• Package: TSSOP-16
• Essence: The MM74HC259MTC is a versatile IC that combines the functionality of an 8-bit addressable latch and a shift register. It is designed to provide efficient data storage and control capabilities in various applications.
• Packaging/Quantity: The MM74HC259MTC is available in a TSSOP-16 package and is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Latch Enable Setup Time: 20 ns
• Shift Register Clock Pulse Width: 30 ns
• Maximum Clock Frequency: 33 MHz
• Output Current: ±25 mA
• Propagation Delay: 15 ns

Pin Configuration

The MM74HC259MTC has a total of 16 pins, which are assigned specific functions 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. LE (Latch Enable)
11. CP (Clock Pulse)
12. MR (Master Reset)
13. Q0 (Output 0)
14. Q1 (Output 1)
15. Q2 (Output 2)
16. VCC (Supply Voltage)

Functional Features

• The MM74HC259MTC combines an 8-bit addressable latch and a shift register in a single IC.
• It allows data to be stored and controlled efficiently, providing flexibility in various applications.
• The latch enable (LE) pin controls the storage of data, while the clock pulse (CP) pin enables shifting of data.
• The master reset (MR) pin resets the latch and shift register to their initial states.
• The outputs (Q0-Q2) provide the stored data or the shifted data depending on the mode of operation.

Advantages and Disadvantages

Advantages: - Versatile functionality combining latch and shift register. - High-speed operation. - Wide supply voltage range. - Compact TSSOP-16 package. - Suitable for various applications requiring data storage and control.

Disadvantages: - Limited number of output pins (3). - May require additional external components for certain applications. - Not suitable for high-voltage applications.

Working Principles

The MM74HC259MTC operates based on the principles of latch and shift register circuits. When the latch enable (LE) pin is high, the data inputs (D0-D7) are latched and stored in the internal memory. On the rising edge of the clock pulse (CP), the stored data is shifted through the shift register. The outputs (Q0-Q2) provide either the stored data or the shifted data, depending on the mode of operation.

Detailed Application Field Plans

The MM74HC259MTC can be used in various applications that require data storage and control, such as:

1. Address decoding in microcontrollers and microprocessors.
2. Serial-to-parallel data conversion.
3. LED matrix control.
4. Multiplexing and demultiplexing of signals.
5. Data routing and selection in digital systems.
6. Control of peripheral devices in embedded systems.

Detailed and Complete Alternative Models

1. SN74HC259N: Similar functionality, available in DIP-16 package.
2. CD74HC259E: Equivalent functionality, available in PDIP-16 package.
3. 74HCT259: Compatible functionality, operates at lower voltage levels.

These alternative models provide similar or equivalent functionality to the MM74HC259MTC and can be considered as alternatives based on specific requirements and availability.

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