SN74AHC373NSR

Product Overview

• Category: Integrated Circuit
• Use: Octal Transparent D-Type Latches with 3-State Outputs
• Characteristics:
  • High-Speed CMOS Logic
  • Eight Latches in a Single Package
  • 3-State Outputs for Bus-Oriented Applications
  • Output Drive Capability: 15 LSTTL Loads
  • Low Power Consumption
  • Balanced Propagation Delays
  • Wide Operating Voltage Range: 2 V to 5.5 V
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The SN74AHC373NSR is an octal transparent latch with 3-state outputs, designed for high-speed CMOS logic applications.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Input Capacitance: 3 pF
• Output Capacitance: 6 pF
• Input Current: ±20 mA
• Output Current: ±35 mA

Detailed Pin Configuration

The SN74AHC373NSR has a 20-pin configuration 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. CP (Clock Pulse)
12. LE (Latch Enable)
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. VCC (Supply Voltage)

Functional Features

• Octal transparent latch with 3-state outputs
• Allows data to be stored in the latch when the latch enable (LE) input is high
• Outputs can be disabled by setting the output enable (OE) input low
• Suitable for bus-oriented applications
• High-speed operation and low power consumption
• Balanced propagation delays ensure reliable data transfer

Advantages and Disadvantages

Advantages: - High-speed CMOS logic allows for fast data processing - 3-state outputs enable efficient bus sharing - Wide operating voltage range provides flexibility in various applications - Low power consumption helps conserve energy

Disadvantages: - Limited output drive capability compared to some other models - May not be suitable for applications requiring higher output currents

Working Principles

The SN74AHC373NSR operates as an octal transparent latch with 3-state outputs. When the latch enable (LE) input is high, the data inputs (D0-D7) are latched and stored in the internal flip-flops. The stored data can then be accessed through the corresponding outputs (Q0-Q7). The output enable (OE) input controls whether the outputs are active or in a high-impedance state.

Detailed Application Field Plans

The SN74AHC373NSR is commonly used in various applications, including:

1. Data storage and retrieval systems
2. Address decoding circuits
3. Bus interface units
4. Memory modules
5. Microprocessor-based systems
6. Communication devices

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the SN74AHC373NSR are:

1. 74HC373: Octal D-Type Transparent Latch with 3-State Outputs
2. CD74HCT373: High-Speed CMOS Logic Octal Transparent Latch with 3-State Outputs
3. MC74ACT373: Octal Transparent Latch with 3-State Outputs

These models offer similar functionality and characteristics, providing options for different design requirements.

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