Encyclopedia Entry: 74LCX373WMX

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Device
• Characteristics: Low Voltage, Octal Transparent Latch with 3-State Outputs
• Package: 20-pin Wide SOIC (Small Outline Integrated Circuit)
• Essence: The 74LCX373WMX is a latch IC that can store and output digital data. It operates at low voltage levels and offers 3-state outputs.
• Packaging/Quantity: Available in reels or tubes, typically sold in quantities of 250 or 1,000 units.

Specifications

• Supply Voltage Range: 2.0V to 3.6V
• High-Level Input Voltage: 2.0V to Vcc + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: Vcc - 0.4V
• Low-Level Output Voltage: 0.4V
• Maximum Operating Frequency: 200MHz
• Propagation Delay Time: 2.5ns (max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74LCX373WMX has a total of 20 pins, each serving a specific purpose. Here is the detailed pin configuration:

1. D0: Data Input 0
2. D1: Data Input 1
3. D2: Data Input 2
4. D3: Data Input 3
5. D4: Data Input 4
6. D5: Data Input 5
7. D6: Data Input 6
8. D7: Data Input 7
9. GND: Ground
10. OE: Output Enable
11. LE: Latch Enable
12. Q0: Output 0
13. Q1: Output 1
14. Q2: Output 2
15. Q3: Output 3
16. Q4: Output 4
17. Q5: Output 5
18. Q6: Output 6
19. Q7: Output 7
20. Vcc: Power Supply

Functional Features

• Octal Transparent Latch: The 74LCX373WMX can store and latch eight bits of digital data.
• 3-State Outputs: It offers three output states - high, low, and high impedance (disconnected).
• Low Voltage Operation: Designed to operate at low voltage levels, making it suitable for battery-powered devices.
• Fast Propagation Delay: With a maximum propagation delay of 2.5ns, it ensures quick data transfer.

Advantages and Disadvantages

Advantages: - Low power consumption due to low voltage operation. - Compact package size allows for space-efficient designs. - High-speed operation enables rapid data processing.

Disadvantages: - Limited voltage range may not be compatible with all systems. - Sensitive to electrostatic discharge (ESD), requiring proper handling precautions.

Working Principles

The 74LCX373WMX operates based on the principles of digital logic. When the latch enable (LE) input is high, the data inputs (D0-D7) are transferred to the outputs (Q0-Q7). The output enable (OE) input controls whether the outputs are active or in a high impedance state. By manipulating these control signals, the IC can store and output digital data as required.

Detailed Application Field Plans

The 74LCX373WMX finds applications in various digital systems, including but not limited to: - Microcontrollers and microprocessors - Data storage devices - Communication systems - Industrial automation - Consumer electronics

Detailed and Complete Alternative Models

• 74HC373: Similar latch IC with higher voltage operation (4.5V to 5.5V).
• 74HCT373: Latch IC with TTL-compatible inputs and higher voltage operation (4.5V to 5.5V).
• SN74LVC373A: Octal transparent latch with 3-state outputs and lower voltage operation (1.65V to 3.6V).

In conclusion, the 74LCX373WMX is a versatile latch IC that offers low voltage operation, 3-state outputs, and fast data transfer. Its compact package and various applications make it a popular choice in digital systems. However, proper handling and compatibility considerations should be taken into account when using this IC.

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