SN74AHC373PWRE4

Product Overview

• Category: Integrated Circuit
• Use: Octal Transparent D-Type Latch 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
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: The SN74AHC373PWRE4 is an integrated circuit that contains eight transparent D-type latches with 3-state outputs. It is designed for high-speed CMOS logic applications and is commonly used in bus-oriented systems.

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• Input Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Current: ±8 mA
• Propagation Delay Time: 6 ns (Max)
• Output Capacitance: 10 pF (Typ)

Pin Configuration

The SN74AHC373PWRE4 has a total of 20 pins, which are arranged as follows:

__ __ OE1 |1 `--' 20| VCC O1 |2 19| O8 I1 |3 18| I8 I2 |4 17| GND I3 |5 16| I7 I4 |6 15| I6 I5 |7 14| I5 I6 |8 13| I4 I7 |9 12| I3 I8 |10 11| O7 `--------'

Functional Features

• Octal transparent D-type latches with 3-state outputs
• Latch Enable (LE) and Output Enable (OE) inputs control the operation of the latches
• When LE is high, the latch is transparent, allowing data to be entered
• When OE is low, the outputs are in a high-impedance state, allowing multiple devices to share a bus without contention
• Outputs can drive up to 15 LSTTL loads

Advantages and Disadvantages

Advantages: - High-speed CMOS logic allows for fast operation - 3-state outputs enable bus-oriented applications - Can drive multiple loads without contention

Disadvantages: - Limited output current capability - Requires external control signals for proper operation

Working Principles

The SN74AHC373PWRE4 operates by using the latch enable (LE) input to control the transparency of the latch. When LE is high, the latch becomes transparent, allowing the data on the input pins to propagate to the output pins. The output enable (OE) input controls the state of the outputs. When OE is low, the outputs are in a high-impedance state, allowing other devices to drive the bus. When OE is high, the outputs reflect the data stored in the latch.

Detailed Application Field Plans

The SN74AHC373PWRE4 is commonly used in various applications, including: - Data storage and transfer systems - Address decoding circuits - Bus-oriented systems - Memory interfacing - General-purpose digital logic circuits

Alternative Models

Some alternative models that provide similar functionality to the SN74AHC373PWRE4 include: - CD74HCT373E - MC74ACT373DW - 74LVTH373WM

These models offer comparable features and can be used as replacements depending on specific requirements.

In conclusion, the SN74AHC373PWRE4 is a high-speed CMOS integrated circuit that contains eight transparent D-type latches with 3-state outputs. It is commonly used in bus-oriented systems and offers advantages such as fast operation and the ability to drive multiple loads without contention. However, it has limitations in terms of output current capability and requires external control signals for proper operation.