SN74HCT573DBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Octal D-type transparent latch with 3-state outputs
• Characteristics:
  • High-speed CMOS technology
  • 8-bit latch with 3-state outputs
  • Transparent latch for real-time data transfer
  • Low power consumption
  • Wide operating voltage range
• Package: SSOP-20
• Essence: The SN74HCT573DBR is a versatile integrated circuit that provides an octal D-type transparent latch with 3-state outputs. It is commonly used in digital systems for real-time data transfer and storage.

Packaging/Quantity

The SN74HCT573DBR is available in a SSOP-20 package. Each package contains one IC.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 25 MHz
• Maximum Propagation Delay: 18 ns
• Output Drive Capability: ±6 mA

Detailed Pin Configuration

The SN74HCT573DBR has a total of 20 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. OE: Output enable
11. LE: Latch enable
12. CP: Clock pulse
13. Q0: Output 0
14. Q1: Output 1
15. Q2: Output 2
16. Q3: Output 3
17. Q4: Output 4
18. Q5: Output 5
19. Q6: Output 6
20. Q7: Output 7

Functional Features

The SN74HCT573DBR is designed to provide real-time data transfer and storage capabilities in digital systems. Its key features include:

• Octal D-type transparent latch with 3-state outputs
• Transparent latch allows for real-time data transfer
• 3-state outputs enable multiple devices to share a common bus
• High-speed CMOS technology ensures fast operation
• Low power consumption for energy efficiency
• Wide operating voltage range for compatibility with various systems

Advantages and Disadvantages

Advantages

• Real-time data transfer capability
• Versatile latch with 3-state outputs
• High-speed operation
• Low power consumption
• Wide operating voltage range

Disadvantages

• Limited output drive capability (±6 mA)
• Requires external clock signal for operation

Working Principles

The SN74HCT573DBR operates based on the principles of transparent latching. When the latch enable (LE) input is high, the data inputs (D0-D7) are transferred to the outputs (Q0-Q7) in real-time. The latch remains transparent as long as LE is high. When LE is low, the outputs hold their last state.

The clock pulse (CP) input is used to control the timing of data transfer. On each rising edge of the clock pulse, the data inputs are sampled and transferred to the outputs if LE is high. The output enable (OE) input is used to enable or disable the outputs.

Detailed Application Field Plans

The SN74HCT573DBR is widely used in various digital systems where real-time data transfer and storage are required. Some common application fields include:

1. Microcontrollers: Used for interfacing with external devices and peripherals.
2. Data communication systems: Used for data buffering and synchronization.
3. Memory systems: Used for address decoding and data storage.
4. Industrial automation: Used for controlling and monitoring devices in industrial settings.
5. Automotive electronics: Used for signal conditioning and control in automotive applications.

Detailed and Complete Alternative Models

• 74HC573: Similar octal D-type transparent latch with 3-state outputs, but operates at a lower voltage range (2V to 6V).
• CD74HCT573E: Octal D-type transparent latch with 3-state outputs, available in a DIP-20 package.
• MC74HCT573AN: Octal D-type transparent latch with 3-state outputs, available in a PDIP-20 package.

These alternative models provide similar functionality to the SN74HCT573DBR and can be used as replacements depending on specific requirements.

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