SN74ACT373MDWREP

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data storage and transfer
• Characteristics: High-speed, octal transparent latch with 3-state outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Provides a latch function for temporary storage of data
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Logic Family: ACT
• Number of Bits: 8
• Output Type: 3-state
• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Input/Output Compatibility: TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor)
• Propagation Delay Time: 6 ns (typical)
• Output Current: ±24 mA
• Power Dissipation: 500 mW (max)

Detailed Pin Configuration

The SN74ACT373MDWREP has a total of 20 pins, which are assigned 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. 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: Supply voltage

Functional Features

• Octal transparent latch: Allows data to be stored temporarily and transferred to the outputs when enabled.
• 3-state outputs: Provides the ability to disconnect the outputs from the bus, allowing multiple devices to share the same bus without interference.
• High-speed operation: Enables efficient data transfer in time-critical applications.
• TTL and CMOS compatibility: Ensures compatibility with a wide range of digital systems.

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick data transfer. - 3-state outputs enable bus sharing and reduce system complexity. - Compatibility with both TTL and CMOS ensures versatility in system integration.

Disadvantages: - Limited supply voltage range (4.5V to 5.5V) may not be suitable for all applications. - Power dissipation of 500 mW (max) may require additional cooling measures in high-power systems.

Working Principles

The SN74ACT373MDWREP operates as an octal transparent latch. 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. When OE is low, the outputs are active, allowing data to be read or driven onto a bus. When OE is high, the outputs are in a high-impedance state, effectively disconnecting them from the bus.

Detailed Application Field Plans

The SN74ACT373MDWREP can be used in various applications that require temporary storage and transfer of data. Some potential application fields include:

1. Microprocessors and microcontrollers: Used to store and transfer data between the processor and external devices.
2. Communication systems: Enables data buffering and synchronization in data transmission circuits.
3. Memory modules: Provides temporary storage for address and control signals during read/write operations.
4. Industrial automation: Facilitates data transfer between sensors, actuators, and control units.

Detailed and Complete Alternative Models

1. SN74ACT373DWR: Similar to SN74ACT373MDWREP but in a different package (SOIC-20).
2. 74ACT373SCX: Octal transparent latch with 3-state outputs in a smaller package (SOIC-16).
3. CD74ACT373M96: Octal transparent latch with 3-state outputs in a different logic family (CD).

These alternative models offer similar functionality and can be considered as replacements based on specific requirements and constraints.

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