74LVT574DB,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Level Shifter
• Characteristics: Low Voltage, Octal D-Type Flip-Flop with 3-State Outputs
• Package: SSOP-20
• Essence: This IC is designed to shift logic levels between different voltage domains in digital systems.
• Packaging/Quantity: The 74LVT574DB,118 is typically sold in reels of 2,500 units.

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: 2.4V (min) at IOH = -24mA
• Low-Level Output Voltage: 0.4V (max) at IOL = 24mA
• Maximum Operating Frequency: 200MHz
• Propagation Delay Time: 3.5ns (typical)

Detailed Pin Configuration

The 74LVT574DB,118 has a total of 20 pins. The pin configuration is as follows:

+---+--+---+ OE1 |1 +--+ 20| VCC D0 |2 19| D7 D1 |3 18| D6 D2 |4 17| D5 D3 |5 16| D4 GND |6 15| Q4 Q0 |7 14| Q5 Q1 |8 13| Q6 Q2 |9 12| Q7 Q3 |10 11| OE2 +----------+

Functional Features

• Octal D-Type Flip-Flop: The IC consists of eight individual D-type flip-flops with 3-state outputs.
• Level Shifting: It allows for shifting logic levels between different voltage domains, enabling compatibility between systems operating at different voltages.
• 3-State Outputs: The outputs can be put into a high-impedance state, allowing multiple devices to share a common bus without interfering with each other.

Advantages and Disadvantages

Advantages: - Wide Supply Voltage Range: Can operate in low voltage systems. - High-Speed Operation: Supports frequencies up to 200MHz. - 3-State Outputs: Enables bus sharing and reduces conflicts in multi-device systems.

Disadvantages: - Limited Output Voltage Range: The high-level output voltage is limited to 2.4V, which may not be suitable for all applications. - Propagation Delay: The propagation delay time of 3.5ns may introduce timing issues in certain high-speed applications.

Working Principles

The 74LVT574DB,118 operates by receiving input data on the D0-D7 pins and storing it in the internal flip-flops. The stored data can then be accessed on the Q0-Q7 pins. The OE1 and OE2 pins control the output enable function, allowing the outputs to be either active or in a high-impedance state. The IC uses level-shifting circuitry to ensure proper signal translation between different voltage domains.

Detailed Application Field Plans

The 74LVT574DB,118 is commonly used in various digital systems where logic level shifting is required. Some typical application fields include: - Microcontrollers and microprocessors interfacing with peripherals operating at different voltage levels. - Communication systems involving different voltage domain interfaces. - Data acquisition systems requiring voltage translation between sensors and processing units.

Detailed and Complete Alternative Models

• 74LVC574A: Similar octal D-type flip-flop with 3-state outputs, but operates at a lower supply voltage range of 1.65V to 3.6V.
• SN74LVTH574: Octal D-type flip-flop with 3-state outputs, offering higher output drive capability and wider operating temperature range.

(Note: The above alternative models are just examples and not an exhaustive list.)

This entry provides an overview of the 74LVT574DB,118 integrated circuit, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.