SN74ALS373ADWG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Octal Transparent D-Type Latches with 3-State Outputs
• Characteristics:
  • High-speed operation
  • 3-state outputs for bus-oriented applications
  • Common latch enable input
  • Buffered inputs
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Transparent latches with 3-state outputs
  • Packaging/Quantity: Tape and Reel, 2500 pieces per reel

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
• Propagation Delay Time: 8ns (typical)
• Output Current: ±24mA
• Input Capacitance: 3pF
• Output Capacitance: 15pF
• Power Dissipation: 500mW

Detailed Pin Configuration

The SN74ALS373ADWG4 has a total of 20 pins. The pin configuration is as follows:

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. LE: Latch Enable Input
11. OE: Output Enable Input
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: Supply Voltage

Functional Features

• Octal transparent D-type latches with 3-state outputs
• Latch enable input allows data to be entered into the flip-flops
• Output enable input controls the 3-state outputs
• Buffered inputs ensure signal integrity
• High-speed operation for efficient data transfer
• Suitable for bus-oriented applications

Advantages and Disadvantages

Advantages: - High-speed operation enables quick data transfer - 3-state outputs allow for bus-oriented applications - Buffered inputs ensure signal integrity - Common latch enable input simplifies control - Compact SOIC package saves space

Disadvantages: - Limited operating temperature range (-40°C to +85°C) - Requires a supply voltage between 4.5V and 5.5V

Working Principles

The SN74ALS373ADWG4 is an octal transparent latch with 3-state outputs. It operates by using a latch enable input (LE) to control the data input (D) and a separate output enable input (OE) to control the 3-state outputs (Q). When the latch enable input is high, the data on the inputs is transferred to the outputs. The output enable input determines whether the outputs are active or in a high-impedance state.

Detailed Application Field Plans

The SN74ALS373ADWG4 is commonly used in various applications, including:

1. Data storage and transfer in microprocessors and microcontrollers.
2. Address and data bus interfacing in computer systems.
3. Memory address decoding.
4. General-purpose digital logic circuits.
5. Industrial automation and control systems.
6. Communication equipment.
7. Automotive electronics.
8. Test and measurement instruments.

Detailed and Complete Alternative Models

1. SN74ALS373ADW: Similar to SN74ALS373ADWG4, but in a wider SOIC package.
2. SN74ALS373AN: DIP (Dual In-line Package) version of the SN74ALS373ADWG4.
3. SN74LS373: Lower power version with TTL (Transistor-Transistor Logic) inputs.
4. SN74HC373: High-speed CMOS (Complementary Metal-Oxide-Semiconductor) version.
5. SN74HCT373: CMOS version with TTL-compatible inputs.

These alternative models offer similar functionality and can be used as replacements for the SN74ALS373ADWG4 in various applications.

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