74LVCH162244APFG

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics:
  • Low voltage operation
  • High-speed performance
  • Bidirectional translation capability
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic level translation between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range (VREF): GND to VCC
• Output Voltage Range (A/B Ports): GND to VCC
• Maximum Input Current: ±50mA
• Maximum Output Current: ±32mA
• Propagation Delay Time: 4.5ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74LVCH162244APFG IC has a total of 48 pins arranged in a TSSOP package. The pin configuration is as follows:

+---------------------+ OE --|1 48|-- VCC A1B1 --|2 47|-- B1B1 A1A1 --|3 46|-- B1A1 GND --|4 45|-- A1B2 A2B1 --|5 44|-- A1A2 A2A1 --|6 43|-- GND B2B1 --|7 42|-- A2B2 B2A1 --|8 41|-- A2A2 A1B2 --|9 40|-- B2B2 A1A2 --|10 39|-- B2A2 GND --|11 38|-- A1B3 A2B2 --|12 37|-- A1A3 A2A2 --|13 36|-- GND B2B2 --|14 35|-- A2B3 B2A2 --|15 34|-- A2A3 A1B3 --|16 33|-- GND A1A3 --|17 32|-- B2B3 GND --|18 31|-- B2A3 A2B3 --|19 30|-- A1B4 A2A3 --|20 29|-- A1A4 B2B3 --|21 28|-- GND B2A3 --|22 27|-- A2B4 A1B4 --|23 26|-- A2A4 A1A4 --|24 25|-- B2B4 +---------------------+

Functional Features

• Bidirectional voltage level translation between two voltage domains
• Supports voltage translation from a lower voltage domain to a higher voltage domain (A to B) and vice versa (B to A)
• Automatic direction control based on the input/output logic levels
• 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 performance enables efficient data transfer - ESD protection ensures reliability in harsh environments

Disadvantages: - Limited number of translation channels (16 in total) - Not suitable for voltage translation between very high voltage domains

Working Principles

The 74LVCH162244APFG is a logic level translator IC that operates by monitoring the input/output logic levels and automatically translating them between two voltage domains. It utilizes a combination of CMOS technology and level-shifting circuitry to achieve bidirectional voltage translation.

When the OE (Output Enable) pin is set to a logic low, the IC is enabled, and the direction of translation is determined based on the logic levels present at the A and B ports. If the A port has a higher voltage level than the B port, the IC translates from A to B, and vice versa.

The IC incorporates ESD protection on all inputs and outputs, ensuring robustness against electrostatic discharge events.

Detailed Application Field Plans

The 74LVCH162244APFG is commonly used in various applications where voltage translation between different voltage domains is required. Some typical application fields include:

1. Microcontroller interfacing with peripherals operating at different voltage levels
2. Communication systems involving multiple voltage domains
3. Battery-powered devices requiring efficient