PI74LPT16374CAE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-power, 16-bit bidirectional voltage level translator
• Package: Ceramic Dual In-Line Package (CDIP)
• Essence: Translates signals between two different voltage levels
• Packaging/Quantity: Available in tubes of 25 units

Specifications

• Number of Bits: 16
• Input Voltage Levels: 2.5V to 5.5V
• Output Voltage Levels: 3.3V to 5.5V
• Maximum Operating Frequency: 100 MHz
• Propagation Delay: 4 ns
• Supply Current: 10 mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PI74LPT16374CAE has a total of 48 pins, which are divided into four groups:

1. Input Pins (A1-A16): These pins receive the input signals from the lower voltage domain.
2. Output Pins (B1-B16): These pins provide the translated output signals to the higher voltage domain.
3. Voltage Supply Pins (VCC and GND): These pins provide power supply to the IC.
4. Control Pins (OE and DIR): OE (Output Enable) controls the output state, while DIR (Direction) determines the translation direction.

Functional Features

• Bidirectional Voltage Translation: Allows seamless communication between devices operating at different voltage levels.
• High-Speed Operation: Supports data rates up to 100 MHz, enabling fast signal transmission.
• Low Power Consumption: Operates with a low supply current of only 10 mA, making it suitable for battery-powered applications.
• Wide Voltage Range: Compatible with various voltage levels, providing flexibility in system design.
• ESD Protection: Incorporates Electrostatic Discharge (ESD) protection, ensuring robustness against static electricity.

Advantages and Disadvantages

Advantages

• Efficient voltage level translation for mixed-voltage systems.
• High-speed operation enables real-time data transfer.
• Low power consumption prolongs battery life in portable devices.
• Wide voltage range compatibility enhances versatility.

Disadvantages

• Limited to 16-bit translation, may not be suitable for larger data buses.
• Propagation delay of 4 ns may introduce timing issues in certain applications.
• Ceramic Dual In-Line Package (CDIP) may require additional precautions during handling and assembly.

Working Principles

The PI74LPT16374CAE utilizes a combination of MOSFET-based level shifters and control circuitry to achieve bidirectional voltage translation. The input signals are received through the A1-A16 pins and are translated to the higher voltage domain using level shifters. Similarly, the output signals from the higher voltage domain are translated to the lower voltage domain before being provided through the B1-B16 pins. The OE and DIR control pins allow the user to enable/disable the output and select the translation direction.

Detailed Application Field Plans

The PI74LPT16374CAE finds applications in various fields, including:

1. Microcontroller Interfacing: Enables communication between microcontrollers operating at different voltage levels.
2. Mixed-Voltage Systems: Facilitates data exchange between components with varying voltage requirements, such as sensors, memory modules, and display panels.
3. Industrial Automation: Supports voltage level translation in industrial control systems, PLCs (Programmable Logic Controllers), and motor control circuits.
4. Consumer Electronics: Used in devices like smartphones, tablets, and gaming consoles to interface components operating at different voltage levels.

Detailed and Complete Alternative Models

1. SN74LVC1T45: Single-bit voltage level translator with similar characteristics and package options.
2. TXB0108: 8-bit bidirectional voltage level translator with automatic direction sensing.
3. PCA9306: Dual bidirectional I2C-bus and SMBus voltage level translator.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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