SN74AHCT16540DL

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-speed, low-power, 16-bit bus transceiver
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Transfers data between two different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Number of Bits: 16
• 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
• Propagation Delay Time: 6.5ns (typical)
• Output Drive Capability: ±24mA
• ESD Protection: >2000V (Human Body Model)

Detailed Pin Configuration

The SN74AHCT16540DL has a total of 48 pins, which are divided into four groups:

1. Group A (Pins 1-12): Data Inputs (A1-A12) and Data Outputs (B1-B12)
2. Group B (Pins 13-24): Data Inputs (C1-C12) and Data Outputs (D1-D12)
3. Group C (Pins 25-36): Control Inputs (G1-G4) and Output Enable (OE)
4. Group D (Pins 37-48): Power Supply (VCC and GND)

Functional Features

• Bidirectional data transfer between two voltage domains
• Non-inverting level shifting
• 3-state outputs for bus sharing
• Schmitt-trigger inputs for noise immunity
• High-speed operation with minimal power consumption

Advantages and Disadvantages

Advantages: - High-speed data transfer - Low power consumption - Wide operating temperature range - ESD protection for enhanced reliability - Schmitt-trigger inputs for noise immunity

Disadvantages: - Limited number of bits (16) - Requires external control signals for proper operation

Working Principles

The SN74AHCT16540DL is a 16-bit bus transceiver that allows bidirectional data transfer between two voltage domains. It uses non-inverting level shifting to ensure compatibility between different logic levels. The device features 3-state outputs, which enable multiple devices to share the same bus without interference. Schmitt-trigger inputs provide noise immunity, ensuring reliable data transmission even in noisy environments.

Detailed Application Field Plans

The SN74AHCT16540DL 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 enables the transfer of analog and digital signals between different subsystems.
3. Industrial automation: It serves as a level shifter in control systems, allowing seamless integration of components with varying voltage requirements.
4. Communication systems: It plays a crucial role in connecting different modules within communication equipment, such as routers and switches.

Detailed and Complete Alternative Models

1. SN74AHCT125: Quad Bus Buffer Gates with 3-State Outputs
2. SN74AHCT244: Octal Buffers/Line Drivers with 3-State Outputs
3. SN74AHCT573: Octal D-Type Transparent Latches with 3-State Outputs
4. SN74AHCT595: 8-Bit Shift Registers with 3-State Outputs

These alternative models offer similar functionality and can be used as substitutes for the SN74AHCT16540DL in various applications.

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