SN74AHC373DBR

Product Overview

• Category: Integrated Circuit
• Use: Latch/Flip-Flop
• Characteristics: High-Speed, Octal Transparent D-Type Latch with 3-State Outputs
• Package: SSOP (Shrink Small Outline Package)
• Essence: The SN74AHC373DBR is a latch/flip-flop integrated circuit that provides eight transparent D-type latches with 3-state outputs.
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• High-Level Input Voltage: 0.7 x VCC to VCC + 0.5 V
• Low-Level Input Voltage: -0.5 V to 0.3 x VCC
• High-Level Output Current: -8 mA
• Low-Level Output Current: 8 mA
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74AHC373DBR has a total of 20 pins, which are assigned as follows:

1. Pin 1: Output Enable (OE)
2. Pin 2: Data Input (D0)
3. Pin 3: Data Input (D1)
4. Pin 4: Data Input (D2)
5. Pin 5: Data Input (D3)
6. Pin 6: Data Input (D4)
7. Pin 7: Data Input (D5)
8. Pin 8: Data Input (D6)
9. Pin 9: Data Input (D7)
10. Pin 10: Ground (GND)
11. Pin 11: Data Output (Q0)
12. Pin 12: Data Output (Q1)
13. Pin 13: Data Output (Q2)
14. Pin 14: Data Output (Q3)
15. Pin 15: Data Output (Q4)
16. Pin 16: Data Output (Q5)
17. Pin 17: Data Output (Q6)
18. Pin 18: Data Output (Q7)
19. Pin 19: Clock Input (CLK)
20. Pin 20: Supply Voltage (VCC)

Functional Features

• Octal transparent D-type latches with 3-state outputs
• High-speed operation, suitable for applications requiring fast data transfer
• 3-state outputs allow multiple devices to share a common bus
• Output enable (OE) pin controls the state of the outputs
• Low power consumption

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer - 3-state outputs facilitate bus sharing in multi-device systems - Low power consumption helps conserve energy

Disadvantages: - Limited voltage supply range (2 V to 5.5 V) - Operating temperature range may not be suitable for extreme environments

Working Principles

The SN74AHC373DBR operates as an octal transparent latch/flip-flop. When the clock input (CLK) is high, the data inputs (D0-D7) are transferred to the corresponding outputs (Q0-Q7). The output enable (OE) pin controls the state of the outputs. When OE is low, the outputs are active. When OE is high, the outputs are in a high-impedance state.

Detailed Application Field Plans

The SN74AHC373DBR can be used in various applications, including:

1. Data storage and transfer systems
2. Address decoding circuits
3. Bus interface units
4. Memory modules
5. Microcontroller-based systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the SN74AHC373DBR are:

1. 74HC373: This is a standard CMOS version of the latch/flip-flop with similar characteristics and pin configuration.
2. CD74HCT373: This model is compatible with TTL logic levels and offers enhanced noise immunity.
3. MC74ACT373: A high-speed alternative with improved performance in terms of propagation delay.

These alternative models can be considered based on specific requirements and compatibility with existing systems.

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