74LCXZ162244MEA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: Low-voltage, high-speed, bidirectional translation
• Package: 48-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic level shifting between different voltage domains
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 100MHz
• Number of Channels: 16
• Logic Family: LCX

Detailed Pin Configuration

The 74LCXZ162244MEA has a total of 48 pins, which are organized as follows:

• Pins 1 to 8: Channel A Data Inputs/Outputs (D0-D7)
• Pins 9 to 16: Channel B Data Inputs/Outputs (D0-D7)
• Pins 17 to 24: Channel C Data Inputs/Outputs (D0-D7)
• Pins 25 to 32: Channel D Data Inputs/Outputs (D0-D7)
• Pins 33 to 40: Channel E Data Inputs/Outputs (D0-D7)
• Pins 41 to 48: Channel F Data Inputs/Outputs (D0-D7)

Functional Features

• Bidirectional voltage level translation between two voltage domains
• Supports translation between 1.8V, 2.5V, and 3.3V logic levels
• Provides automatic direction control based on the voltage level of the VCCA and VCCB pins
• High-speed operation with minimal propagation delay
• Low power consumption
• ESD protection on all inputs and outputs

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - Bidirectional translation simplifies interfacing between different voltage domains - High-speed operation enables efficient data transfer - ESD protection ensures robustness in harsh environments

Disadvantages: - Limited to 16 channels, may not be suitable for applications requiring a higher number of channels - Not compatible with voltage levels other than 1.8V, 2.5V, and 3.3V

Working Principles

The 74LCXZ162244MEA is based on the LCX logic family, which utilizes a combination of CMOS and BiCMOS technologies. It employs a voltage level shifting technique to translate signals between two different voltage domains. The direction of translation is automatically controlled by the voltage levels applied to the VCCA and VCCB pins.

When the input signal voltage is within the valid logic low and high levels of the source domain, the IC translates the signal to the corresponding voltage level of the target domain. This bidirectional translation allows seamless communication between devices operating at different voltage levels.

Detailed Application Field Plans

The 74LCXZ162244MEA finds applications in various fields where logic level translation is required. Some of the common application areas include:

1. Microcontroller interfacing: Enables communication between microcontrollers operating at different voltage levels.
2. Memory interfaces: Facilitates data transfer between memory modules with different voltage requirements.
3. Communication systems: Allows integration of components operating at different logic levels, such as UART, SPI, or I2C interfaces.
4. Industrial automation: Enables compatibility between control systems using different voltage standards.
5. Consumer electronics: Supports voltage level translation in devices like smartphones, tablets, and gaming consoles.

Detailed and Complete Alternative Models

1. SN74LVC1T45: Single-bit level translator with automatic direction control.
2. TXB0108: Eight-channel bidirectional voltage-level translator with configurable voltage levels.
3. PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator.
4. 74LVC245: Octal bus transceiver with direction pin for voltage level translation.
5. CD4050B: Hex non-inverting buffer/converter for logic level shifting.

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

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