SN74ACT373N

Product Overview

• Category: Integrated Circuit
• Use: Octal Transparent D-Type Latches with 3-State Outputs
• Characteristics:
  • High-speed operation
  • 3-state outputs for bus-oriented applications
  • Eight latches in a single package
  • Non-inverting outputs
  • Output sink capability of 24 mA, source capability of 12 mA
• Package: DIP (Dual In-line Package)
• Essence: The SN74ACT373N is an integrated circuit that provides eight transparent D-type latches with 3-state outputs. It is commonly used in bus-oriented applications where multiple devices need to share data.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Current: ±24mA
• Propagation Delay Time: 6ns (max)
• Output Capacitance: 10pF (typ)

Detailed Pin Configuration

The SN74ACT373N has a 20-pin DIP package with the following pin configuration:

1. D0 - Data input for latch 0
2. D1 - Data input for latch 1
3. D2 - Data input for latch 2
4. D3 - Data input for latch 3
5. D4 - Data input for latch 4
6. D5 - Data input for latch 5
7. D6 - Data input for latch 6
8. D7 - Data input for latch 7
9. GND - Ground
10. Q0 - Output for latch 0
11. Q1 - Output for latch 1
12. Q2 - Output for latch 2
13. Q3 - Output for latch 3
14. Q4 - Output for latch 4
15. Q5 - Output for latch 5
16. Q6 - Output for latch 6
17. Q7 - Output for latch 7
18. OE - Output Enable
19. CP - Clock Pulse
20. VCC - Supply Voltage

Functional Features

• Octal transparent D-type latches with 3-state outputs
• Non-inverting outputs
• Output enable (OE) pin to control the output state
• Clock pulse (CP) input to latch the data
• High-speed operation with a propagation delay of 6ns (max)
• Suitable for bus-oriented applications

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - 3-state outputs enable bus sharing among multiple devices - Non-inverting outputs simplify circuit design - Compact package with eight latches in a single IC

Disadvantages: - Limited output current capability compared to some other ICs - Requires external clock signal for proper operation

Working Principles

The SN74ACT373N operates by latching the input data on the rising edge of the clock pulse (CP). When the output enable (OE) is high, the latch outputs are in a high-impedance state, allowing multiple devices to share the bus. When OE is low, the latched data appears at the outputs.

Detailed Application Field Plans

The SN74ACT373N is commonly used in various applications, including: - Data buses in microprocessors and microcontrollers - Memory interfacing - Address decoding - Register storage - General-purpose digital logic circuits

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the SN74ACT373N include: - 74HC373: Octal D-type transparent latch with 3-state outputs - CD74ACT373: Octal transparent latch with 3-state outputs - SN54ACT373: Octal transparent D-type latches with 3-state outputs

These alternative models may have slight differences in specifications and pin configurations, so it is important to refer to their respective datasheets for detailed information.

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