Encyclopedia Entry: 74ABT573APW,112

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Device
• Characteristics: High-speed, Octal Transparent Latch with 3-State Outputs
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: The 74ABT573APW,112 is a latch IC that can store and output digital data. It is designed to operate at high speeds and offers 3-state outputs for bus-oriented applications.
• Packaging/Quantity: The 74ABT573APW,112 is typically packaged in reels or tubes, containing multiple units per package.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Input Voltage Levels: CMOS/TTL compatible
• Output Voltage Levels: CMOS/TTL compatible
• Operating Temperature Range: -40°C to +85°C
• Latch Type: Transparent (Data input is transferred to the output when the latch enable signal is active)
• Number of Latches: 8 (Octal)
• Output State: 3-State (High Impedance when the output enable signal is inactive)

Detailed Pin Configuration

The 74ABT573APW,112 has a total of 20 pins, which are assigned as follows:

1. Pin 1: Output Enable (OE)
2. Pin 2: Data Input D0
3. Pin 3: Data Input D1
4. Pin 4: Data Input D2
5. Pin 5: Data Input D3
6. Pin 6: Data Input D4
7. Pin 7: Data Input D5
8. Pin 8: Data Input D6
9. Pin 9: Data Input D7
10. Pin 10: Latch Enable (LE)
11. Pin 11: Clock Input (CLK)
12. Pin 12: Ground (GND)
13. Pin 13: Output Q0
14. Pin 14: Output Q1
15. Pin 15: Output Q2
16. Pin 16: Output Q3
17. Pin 17: Output Q4
18. Pin 18: Output Q5
19. Pin 19: Output Q6
20. Pin 20: Output Q7

Functional Features

• The 74ABT573APW,112 is designed to operate at high speeds, making it suitable for applications requiring fast data transfer.
• It offers 3-state outputs, allowing multiple devices to share a common bus without interference.
• The transparent latch design enables real-time data storage and output when the latch enable signal is active.
• The IC is compatible with both CMOS and TTL voltage levels, providing flexibility in various digital logic systems.

Advantages and Disadvantages

Advantages: - High-speed operation facilitates quick data transfer. - 3-state outputs allow for efficient bus sharing. - Compatibility with CMOS and TTL voltage levels enhances versatility. - Transparent latch design enables real-time data storage and output.

Disadvantages: - Limited latch capacity (8 bits/octal). - Requires external control signals (LE, OE, CLK) for proper operation.

Working Principles

The 74ABT573APW,112 operates based on the principle of transparent latching. When the latch enable (LE) signal is active, the data inputs (D0-D7) are transferred to the corresponding outputs (Q0-Q7). The latch holds this data until the next active edge of the clock input (CLK). The output enable (OE) signal determines whether the outputs are in a high-impedance state or actively driving the bus.

Detailed Application Field Plans

The 74ABT573APW,112 finds applications in various digital systems that require high-speed data storage and transfer. Some potential application fields include:

1. Microprocessors and Microcontrollers
2. Data Communication Systems
3. Memory Interfaces
4. Industrial Control Systems
5. Automotive Electronics
6. Test and Measurement Equipment

Detailed and Complete Alternative Models

1. 74ACT573: Similar octal transparent latch with 3-state outputs, compatible with 5V supply voltage.
2. 74HC573: Octal D-type transparent latch with 3-state outputs, compatible with 2V to 6V supply voltage.
3. 74LS573: Octal transparent latch with 3-state outputs, compatible with 4.75V to 5.25V supply voltage.

(Note: The above alternative models are provided as examples and may have different specifications and pin configurations.)

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