SN74AHCT16540DGVR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-speed, low-power, 16-bit buffer/line driver with 3-state outputs
• Package: VSSOP (Very Small Outline Package)
• Essence: Logic level shifting and buffering
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Drive Capability: ±24mA at 3.3V
• Propagation Delay: 6ns typical
• Maximum Frequency: 125MHz

Detailed Pin Configuration

The SN74AHCT16540DGVR has a total of 48 pins, which are divided into four groups:

1. Group A (pins 1-12): Inputs (A1-A12) and Outputs (Y1-Y12)
2. Group B (pins 13-24): Inputs (A13-A24) and Outputs (Y13-Y24)
3. Group C (pins 25-36): Inputs (A25-A36) and Outputs (Y25-Y36)
4. Group D (pins 37-48): Inputs (A37-A48) and Outputs (Y37-Y48)

Functional Features

• 16-bit buffer/line driver with 3-state outputs
• Non-inverting outputs for easy cascading
• 3-state outputs allow multiple devices to share the same bus
• High-speed operation suitable for various applications
• Low power consumption for energy efficiency

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer - Low power consumption reduces energy usage - 3-state outputs allow for bus sharing and flexibility in system design

Disadvantages: - Limited voltage range (4.5V to 5.5V) - Propagation delay may affect timing-sensitive applications

Working Principles

The SN74AHCT16540DGVR is a logic level shifter that allows for bidirectional voltage translation between different logic levels. It operates by receiving input signals at one voltage level and producing output signals at a different voltage level. The device uses non-inverting buffers to ensure signal integrity and provides 3-state outputs, which can be disabled to effectively disconnect the device from the bus.

Detailed Application Field Plans

The SN74AHCT16540DGVR is commonly used in various applications, including:

1. Microcontroller interfacing: It facilitates communication between microcontrollers operating at different voltage levels.
2. Data transmission systems: It enables voltage level shifting in serial communication interfaces such as UART, SPI, and I2C.
3. Industrial automation: It is utilized in control systems where different components operate at different voltage levels.
4. Automotive electronics: It finds application in automotive systems that require voltage level translation, such as CAN bus interfaces.

Detailed and Complete Alternative Models

1. SN74AHCT125: Quad buffer/line driver with 3-state outputs
2. SN74LVC1G125: Single buffer/line driver with 3-state output
3. SN74LVCH16245A: 16-bit bus transceiver with 3-state outputs
4. SN74LVC4245A: Octal bus transceiver with 3-state outputs

These alternative models offer similar functionality and can be considered as replacements for the SN74AHCT16540DGVR in specific applications.

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