PI74ALVCHR162245AE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-voltage, bidirectional voltage translation
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Voltage level shifting between different logic families
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range (VREF): -0.5V to VCC + 0.5V
• Output Voltage Range (A/B Ports): 0V to VCC
• Maximum Data Rate: 400Mbps
• Number of Channels: 16
• Input/Output Compatibility: LVTTL, LVCMOS, LVDS, SSTL, HSTL

Detailed Pin Configuration

The PI74ALVCHR162245AE has a total of 48 pins, which are organized as follows:

• Pins 1 to 8: Channel A Data Inputs/Outputs (D0 to D7)
• Pins 9 to 16: Channel B Data Inputs/Outputs (D8 to D15)
• Pins 17 to 24: Channel A Enable Inputs (OE0 to OE7)
• Pins 25 to 32: Channel B Enable Inputs (OE8 to OE15)
• Pins 33 to 40: Channel A Voltage Supply (VCCA)
• Pins 41 to 48: Channel B Voltage Supply (VCCB)

Functional Features

• Bidirectional voltage translation between two logic families
• Supports various input/output voltage levels
• High-speed operation with low propagation delay
• Automatic direction control based on the direction of data flow
• ESD protection for robustness against electrostatic discharge

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with different systems - High-speed operation enables efficient data transfer - Bidirectional translation simplifies interface design - ESD protection enhances reliability in harsh environments

Disadvantages: - Limited to 16 channels, may not be suitable for applications requiring more channels - TSSOP package may require careful handling during assembly

Working Principles

The PI74ALVCHR162245AE is designed to translate logic levels between different voltage domains. It utilizes a combination of level shifters and direction control circuitry to achieve bidirectional voltage translation. The device automatically detects the direction of data flow and adjusts the voltage levels accordingly. This enables seamless communication between devices operating at different voltage levels.

Detailed Application Field Plans

The PI74ALVCHR162245AE finds applications in various fields where voltage translation is required. Some potential application areas include:

1. Microcontroller Interfaces: Facilitating communication between microcontrollers operating at different voltage levels.
2. Memory Interfaces: Enabling data transfer between memory modules with varying voltage requirements.
3. Communication Systems: Bridging the gap between different logic families used in communication protocols.
4. Industrial Automation: Integrating devices with different voltage levels in industrial control systems.
5. Automotive Electronics: Supporting voltage translation in automotive electronic systems.

Detailed and Complete Alternative Models

1. SN74LVC4245A: Similar bidirectional voltage translator with 8 channels, available in SOIC package.
2. TXB0108: Octal bidirectional voltage-level translator with automatic direction control, available in SSOP package.
3. PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator, available in SOT23 package.
4. CD4504B: Hex non-inverting level shifter for CMOS and TTL logic, available in DIP package.

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

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