MC74LCX573DWR2

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Level Shifter
• Characteristics: High-speed, low-voltage, octal transparent latch
• Package: SOIC-20 (Small Outline Integrated Circuit), surface mount
• Essence: The MC74LCX573DWR2 is a high-performance, octal transparent latch designed for low-voltage applications. It provides level shifting capabilities, making it suitable for interfacing between different logic families.
• Packaging/Quantity: The MC74LCX573DWR2 is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 2.3V to 3.6V
• Logic Family: LCX (Low-Voltage CMOS)
• Number of Latches: 8
• Latch Type: Transparent (latch input controls the output)
• Latch Output Type: Tri-state (output can be disabled)
• Latch Input/Output Compatibility: TTL, CMOS
• Propagation Delay: 4.5 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MC74LCX573DWR2 has a total of 20 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. OE (Output Enable)
11. LE (Latch Enable)
12. Q0 (Latch Output 0)
13. Q1 (Latch Output 1)
14. Q2 (Latch Output 2)
15. Q3 (Latch Output 3)
16. Q4 (Latch Output 4)
17. Q5 (Latch Output 5)
18. Q6 (Latch Output 6)
19. Q7 (Latch Output 7)
20. VCC (Supply Voltage)

Functional Features

• Octal transparent latch with tri-state outputs
• Low-voltage operation, compatible with both TTL and CMOS logic levels
• High-speed performance with a typical propagation delay of 4.5 ns
• Output enable and latch enable inputs for control over the latch operation
• Tri-state outputs allow multiple devices to be connected to a common bus without interference

Advantages and Disadvantages

Advantages: - Supports level shifting between different logic families - Low-voltage operation reduces power consumption - High-speed performance enables efficient data transfer - Tri-state outputs facilitate bus sharing in multi-device systems

Disadvantages: - Limited to octal latch functionality, may not be suitable for applications requiring more or fewer latches - Requires careful consideration of voltage compatibility when interfacing with other devices

Working Principles

The MC74LCX573DWR2 operates as an octal transparent latch. When the latch enable (LE) input is high, the latch becomes transparent, allowing the data inputs (D0-D7) to pass through to the corresponding latch outputs (Q0-Q7). The output enable (OE) input controls whether the latch outputs are enabled or disabled. When OE is low, the outputs are active; when OE is high, the outputs are in a high-impedance state (tri-state).

Detailed Application Field Plans

The MC74LCX573DWR2 can be used in various applications that require level shifting and latch functionality. Some potential application fields include:

1. Microcontroller interfacing: The IC can be used to interface a microcontroller with other devices operating at different logic levels.
2. Data communication systems: It can be employed in data transmission systems to ensure compatibility between different logic families.
3. Industrial automation: The IC can be utilized in industrial control systems for signal conditioning and level translation purposes.
4. Memory address decoding: It can be used in memory address decoding circuits to enable or disable specific memory banks based on control signals.

Detailed and Complete Alternative Models

• SN74LVC573A: Octal transparent latch with 3-state outputs, compatible with 3.3V and 5V logic levels.
• CD74HC573: Octal transparent latch with non-inverting outputs, compatible with 2V to 6V logic levels.
• 74HCT573: Octal transparent latch with 3-state outputs, compatible with 4.5V to 5.5V logic levels.

(Note: These alternative models are provided as examples and may have different specifications and pin configurations. Refer