PI74LPT16244AE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-power, bidirectional voltage translation
• Package: 48-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Translates logic levels between different voltage domains
• Packaging/Quantity: Tape and reel packaging, 250 units per reel

Specifications

• Supply Voltage Range: 2.3V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 80MHz
• Number of Channels: 16
• Propagation Delay: 4.5ns (typical)
• Output Drive Strength: ±24mA

Detailed Pin Configuration

The PI74LPT16244AE has a total of 48 pins, which are organized as follows:

• Pins 1 to 8: Channel A Inputs/Outputs
• Pins 9 to 16: Channel B Inputs/Outputs
• Pins 17 to 24: Channel C Inputs/Outputs
• Pins 25 to 32: Channel D Inputs/Outputs
• Pins 33 to 40: Channel E Inputs/Outputs
• Pins 41 to 48: Channel F Inputs/Outputs

Functional Features

• Bidirectional voltage translation between different voltage domains
• Supports level shifting between 2.3V and 3.6V logic levels
• Provides high-speed operation with low propagation delay
• Offers 16 channels for simultaneous translation
• Allows direct interfacing between incompatible logic families

Advantages

• Enables seamless communication between devices operating at different voltage levels
• Low power consumption makes it suitable for battery-powered applications
• High-speed operation allows for efficient data transfer
• Multiple channels provide flexibility in system design
• Wide supply voltage range accommodates various applications

Disadvantages

• Limited to translating between 2.3V and 3.6V logic levels
• Not suitable for applications requiring translation between higher voltage domains
• May introduce slight signal degradation due to voltage level shifting

Working Principles

The PI74LPT16244AE utilizes a combination of MOSFETs and level-shifting circuitry to achieve bidirectional voltage translation. It operates by detecting the input logic level and translating it to the corresponding output level based on the selected channel. The device ensures minimal propagation delay and provides reliable voltage translation between different logic families.

Detailed Application Field Plans

The PI74LPT16244AE finds applications in various fields, including:

1. Microcontroller interfacing: Allows communication between microcontrollers operating at different voltage levels.
2. Sensor networks: Facilitates data exchange between sensors with varying logic voltage requirements.
3. Industrial automation: Enables compatibility between different control systems and devices.
4. Communication systems: Supports voltage translation in networking equipment and communication protocols.
5. Consumer electronics: Provides level shifting capabilities in portable devices, such as smartphones and tablets.

Detailed and Complete Alternative Models

1. SN74LVC4245A: Bidirectional voltage-level translator with similar specifications and package.
2. TXB0108: Eight-channel bi-directional voltage-level translator with automatic direction sensing.
3. PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator.

These alternative models offer comparable functionality and can be considered as substitutes for the PI74LPT16244AE in specific applications.

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