PI74ALVCH16823A

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-voltage, 18-bit bus transceiver
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Translates signals between different voltage levels in digital systems
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 400MHz
• Number of Channels: 18
• Input/Output Type: Bi-directional
• Logic Family: ALVC (Advanced Low-Voltage CMOS)

Detailed Pin Configuration

The PI74ALVCH16823A has a total of 56 pins, which are organized as follows:

• Pins 1 to 18: A1 to A18 (Input/Output for Side A)
• Pins 19 to 36: B1 to B18 (Input/Output for Side B)
• Pins 37 to 54: OE1 to OE18 (Output Enable for Side A)
• Pins 55 and 56: GND (Ground) and VCC (Supply Voltage)

Functional Features

• Bidirectional Translation: Allows data transmission in both directions between two voltage domains.
• Voltage Level Shifting: Converts signals from one voltage level to another, ensuring compatibility between different parts of a system.
• High-Speed Operation: Supports fast data transfer rates up to 400MHz, enabling efficient communication between devices.
• Low Power Consumption: Operates at low supply voltages (1.2V to 3.6V), reducing power consumption in portable and battery-powered applications.

Advantages and Disadvantages

Advantages: - Wide Supply Voltage Range: Can be used in various systems with different voltage levels. - High-Speed Operation: Enables fast data transfer, improving system performance. - Bi-directional Capability: Allows bidirectional communication between different voltage domains.

Disadvantages: - Limited Channel Count: Supports up to 18 channels, which may not be sufficient for complex systems requiring more connections. - Package Size: The TSSOP package may be challenging to solder manually due to its small size.

Working Principles

The PI74ALVCH16823A utilizes a combination of CMOS technology and level-shifting circuitry to achieve voltage translation. It consists of input/output buffers and control logic that enable bidirectional data flow between two voltage domains. The device automatically detects the direction of data transmission and adjusts the voltage levels accordingly.

Detailed Application Field Plans

The PI74ALVCH16823A is commonly used in various digital systems where voltage translation is required. Some typical application fields include:

1. Microcontrollers and Microprocessors: Facilitates communication between low-voltage microcontrollers and higher-voltage peripheral devices.
2. Memory Interfaces: Enables data transfer between memory modules operating at different voltage levels.
3. Communication Systems: Allows signal conversion between different voltage domains in networking equipment, such as routers and switches.
4. Industrial Automation: Provides voltage level shifting in industrial control systems, ensuring compatibility between different components.

Detailed and Complete Alternative Models

1. SN74LVC4245A: 8-bit bidirectional voltage-level translator with similar characteristics and package options.
2. TXS0108EPWR: 8-bit bidirectional voltage-level translator with enhanced ESD protection and wider supply voltage range.
3. PCA9306DCUR: Dual bidirectional I2C-bus and SMBus voltage-level translator with integrated level-shifting and isolation features.

(Note: This is not an exhaustive list, and there are several other alternative models available in the market.)

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