PI90LV028AW

Product Overview

• Category: Integrated Circuit
• Use: Signal Level Translator
• Characteristics: High-speed, Low-voltage, Dual Supply Voltage
• Package: 20-pin TSSOP
• Essence: Translates logic level signals between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 1.2V to 3.6V
• Input Voltage Range: 0V to VCCA or VCCB
• Output Voltage Range: 0V to VCCY or VCCZ
• Operating Temperature: -40°C to +85°C
• Propagation Delay: 2.5ns (typical)
• Output Skew: 100ps (typical)

Pin Configuration

The PI90LV028AW has a 20-pin TSSOP package with the following pin configuration:

```

---

| | --| VCCB | --| GND | --| A1 | --| A2 | --| A3 | --| A4 | --| OE | --| B1 | --| B2 | --| B3 | --| B4 | --| VCCA | --| Y1 | --| Y2 | --| Y3 | --| Y4 | --| Z1 | --| Z2 | --| Z3 | --| Z4 | |___________| ```

Functional Features

• Translates logic level signals between two different voltage domains
• Supports bidirectional translation
• Provides voltage level shifting for interfacing between systems operating at different voltages
• High-speed operation with low propagation delay
• Low power consumption
• ESD protection on all pins

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - Bidirectional translation simplifies interface design - High-speed operation enables efficient data transfer - Low power consumption for energy-efficient applications - ESD protection ensures robustness against electrostatic discharge

Disadvantages: - Limited pin count may restrict the number of signals that can be translated simultaneously - Not suitable for applications requiring translation between more than two voltage domains

Working Principles

The PI90LV028AW utilizes a combination of level shifters and voltage comparators to translate logic level signals between two different voltage domains. It operates by monitoring the input signal levels and adjusting the output levels accordingly, ensuring proper signal integrity and compatibility between the two domains.

Detailed Application Field Plans

The PI90LV028AW is commonly used in various applications where logic level translation is required. Some of the typical application fields include:

1. Microcontroller interfacing with peripheral devices operating at different voltage levels
2. Communication systems involving multiple voltage domains, such as UART, SPI, or I2C interfaces
3. Industrial automation systems requiring signal translation between control units and sensors/actuators
4. Automotive electronics for voltage level adaptation between different subsystems
5. Consumer electronics for interfacing between components with varying voltage requirements

Detailed and Complete Alternative Models

1. PI90LV027AW: Similar to PI90LV028AW but with 16-pin TSSOP package
2. PI90LV029AW: Similar to PI90LV028AW but with extended temperature range (-40°C to +125°C)
3. PI90LV030AW: Dual-supply voltage level translator with additional features like voltage clamping and overvoltage protection

These alternative models offer similar functionality to the PI90LV028AW but may have variations in package size, temperature range, or additional features based on specific application requirements.

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