74LVCH322244AEC/G

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-speed, low-voltage, non-inverting buffer/line driver
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic level shifting and signal buffering
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 400 MHz
• Number of Channels: 8
• Input/Output Type: Non-Inverting
• Output Drive Capability: ±24mA
• Propagation Delay: 2.5ns (typical)

Detailed Pin Configuration

The 74LVCH322244AEC/G IC has a total of 48 pins, arranged in a TSSOP package. The pin configuration is as follows:

+---------------------+ OE1 |1 48| VCC A1_1 |2 47| B1_1 A1_2 |3 46| B1_2 A1_3 |4 45| B1_3 A1_4 |5 44| B1_4 A1_5 |6 43| B1_5 A1_6 |7 42| B1_6 A1_7 |8 41| B1_7 A1_8 |9 40| B1_8 GND |10 39| GND A2_1 |11 38| B2_1 A2_2 |12 37| B2_2 A2_3 |13 36| B2_3 A2_4 |14 35| B2_4 A2_5 |15 34| B2_5 A2_6 |16 33| B2_6 A2_7 |17 32| B2_7 A2_8 |18 31| B2_8 GND |19 30| GND OE2 |20 29| VCC +---------------------+

Functional Features

• Logic Level Shifting: The 74LVCH322244AEC/G is designed to shift logic levels between different voltage domains. It can convert low-voltage signals to higher voltage levels or vice versa.
• Signal Buffering: This IC acts as a buffer/line driver, providing signal amplification and isolation between the input and output.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transmission. - Wide supply voltage range enables compatibility with various systems. - Non-inverting nature simplifies signal processing. - Output drive capability supports driving capacitive loads.

Disadvantages: - Limited number of channels (8) may not be sufficient for complex applications requiring more inputs/outputs. - Propagation delay of 2.5ns may introduce timing issues in certain high-frequency applications.

Working Principles

The 74LVCH322244AEC/G operates by receiving input signals from one voltage domain and shifting them to another voltage domain using level-shifting circuitry. The non-inverting buffer amplifies the signals and provides isolation between the input and output. The IC is powered by a supply voltage within the specified range, ensuring proper functionality.

Detailed Application Field Plans

The 74LVCH322244AEC/G finds applications in various fields, including: 1. Microcontrollers and Digital Systems: It facilitates communication between devices operating at different logic levels. 2. Communication Interfaces: It enables level shifting and buffering in UART, SPI, I2C, and other serial communication interfaces. 3. Memory Interfacing: It can be used to interface low-voltage memory modules with higher voltage systems. 4. Industrial Automation: It assists in signal conversion and buffering in control systems and PLCs. 5. Consumer Electronics: It plays a role in voltage translation and buffering in smartphones, tablets, and other portable devices.

Detailed and Complete Alternative Models

Some alternative models that serve similar purposes are: - SN74LVC244A: Non-inverting octal buffer/line driver with 3-state outputs. - 74HCT244: Octal buffer/line driver with 3-state outputs and TTL compatibility. - CD4050B: Hex non-inverting buffer/converter for CMOS to TTL