SN74AHC16540DL

Product Overview

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

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Input Capacitance: 3 pF
• Output Capacitance: 6 pF
• Propagation Delay: 4.8 ns (typical)
• Output Drive Capability: ±24 mA

Detailed Pin Configuration

The SN74AHC16540DL 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
• High-speed operation with minimal power consumption
• 3-state outputs allow multiple devices to share the same bus
• Schmitt-trigger inputs for noise immunity
• ESD protection on all inputs and outputs

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer - Low power consumption for energy-efficient applications - 3-state outputs allow for bus sharing and easy interfacing with other devices - Schmitt-trigger inputs provide noise immunity, ensuring reliable operation - ESD protection safeguards against electrostatic discharge damage

Disadvantages: - Limited voltage range (2 V to 5.5 V) - May require additional components for specific applications - Not suitable for high-voltage or high-current applications

Working Principles

The SN74AHC16540DL 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 internal circuitry to shift the logic levels while maintaining signal integrity.

Detailed Application Field Plans

The SN74AHC16540DL is commonly used in various applications, including:

1. Microcontroller interfacing: It facilitates communication between microcontrollers operating at different voltage levels.
2. Data acquisition systems: It can be used to interface sensors and other peripheral devices with different voltage requirements.
3. Communication protocols: It enables voltage level translation in serial communication interfaces such as UART, SPI, and I2C.
4. Industrial automation: It finds application in control systems where different voltage levels need to be interfaced.

Detailed and Complete Alternative Models

1. SN74AHC16541DL: Similar to SN74AHC16540DL but with inverted outputs.
2. SN74AHCT16540DL: Same functionality as SN74AHC16540DL but with increased voltage tolerance.
3. SN74LVC16540DL: Low-voltage version of SN74AHC16540DL, compatible with 1.65 V to 3.6 V supply voltage range.

These alternative models offer similar functionality with slight variations in voltage tolerance or output characteristics, allowing users to choose the most suitable option for their specific requirements.

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