SN74AHCT373NG4

Product Overview

• Category: Integrated Circuit
• Use: Octal Transparent D-Type Latches with 3-State Outputs
• Characteristics:
  • High-speed CMOS technology
  • Eight latches in a single package
  • 3-state outputs for bus-oriented applications
  • Wide operating voltage range: 2V to 5.5V
  • Low power consumption
• Package: 20-pin PDIP (Plastic Dual In-Line Package)
• Essence: The SN74AHCT373NG4 is an integrated circuit that provides eight transparent D-type latches with 3-state outputs, suitable for various bus-oriented applications.
• Packaging/Quantity: Available in tubes or reels, with 25 pieces per tube/reel.

Specifications

• Supply Voltage Range: 2V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Input Capacitance: 3.5pF
• Output Capacitance: 6pF
• Propagation Delay Time: 8ns (max)
• Output Current: ±6mA

Detailed Pin Configuration

The SN74AHCT373NG4 has a 20-pin PDIP package with the following pin configuration:

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. Q7 (Output 7)

Functional Features

• Octal transparent D-type latches with 3-state outputs
• Latch enable (LE) and output enable (OE) control inputs
• High-speed operation suitable for bus-oriented applications
• Low power consumption
• Wide operating voltage range allows compatibility with various systems

Advantages and Disadvantages

Advantages: - Provides eight latches in a single package, reducing component count and board space requirements - 3-state outputs allow multiple devices to share a common bus without interference - High-speed CMOS technology enables fast data transfer - Wide operating voltage range provides flexibility in system design

Disadvantages: - Limited output current may restrict use in certain high-current applications - PDIP package may not be suitable for space-constrained designs

Working Principles

The SN74AHCT373NG4 operates as an octal transparent latch with 3-state outputs. The latch enable (LE) input controls the state of the latch, while the output enable (OE) input determines whether the outputs are active or in a high-impedance state. When LE is high, the latch follows the data inputs (D0-D7). When OE is low, the outputs (Q0-Q7) reflect the state of the latch. When OE is high, the outputs are in a high-impedance state.

Detailed Application Field Plans

The SN74AHCT373NG4 is commonly used in various applications, including: - Data storage and transfer in microprocessors and microcontrollers - Address and data bus interfacing in computer systems - Memory address decoding - General-purpose digital logic circuits

Detailed and Complete Alternative Models

Some alternative models to the SN74AHCT373NG4 include: - 74HC373: Similar octal transparent latch with 3-state outputs, compatible with CMOS and TTL logic levels. - CD74HCT373: Octal transparent latch with 3-state outputs, designed for high-speed CMOS logic compatibility. - MC74ACT373: Octal transparent latch with 3-state outputs, featuring higher output current capability.

These alternative models offer similar functionality and can be used as replacements depending on specific requirements and system compatibility.

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