Encyclopedia Entry: 74AC11245NSR

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Signal Buffer/Driver
• Characteristics: High-speed, low-power, non-inverting, 12-bit bus transceiver
• Package: NSR (Small Outline Package)
• Essence: The 74AC11245NSR is a versatile IC that provides bidirectional buffering and signal driving capabilities for 12-bit bus systems.
• Packaging/Quantity: Available in reels or tubes, with varying quantities depending on the supplier.

Specifications

• Supply Voltage: 2.0V to 6.0V
• Input Voltage Levels: High: 2.0V to VCC, Low: GND to 0.8V
• Output Voltage Levels: High: VCC - 0.5V, Low: 0.5V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 4.5ns (typical)
• Output Drive Capability: ±24mA

Detailed Pin Configuration

The 74AC11245NSR has a total of 48 pins, arranged as follows:

___________ | | 1A1|1 48|VCC 1Y1|2 47|2A1 2Y1|3 46|2A2 2A1|4 45|2Y2 1A2|5 44|1Y2 1Y2|6 43|1A2 2Y2|7 42|GND 2A2|8 41|3A1 3A1|9 40|3Y1 3Y1|10 39|4Y1 4Y1|11 38|4A1 4A1|12 37|3A2 3A2|13 36|3Y2 3Y2|14 35|4Y2 4Y2|15 34|4A2 4A2|16 33|GND GND|17 32|5A1 5A1|18 31|5Y1 5Y1|19 30|6Y1 6Y1|20 29|6A1 6A1|21 28|5A2 5A2|22 27|5Y2 5Y2|23 26|6Y2 6Y2|24 25|6A2 |___________|

Functional Features

• Bidirectional data flow: The IC allows data transmission in both directions, making it suitable for bus systems.
• Non-inverting: The input and output signals have the same logic polarity.
• High-speed operation: The IC operates at a fast propagation delay of 4.5ns, enabling efficient data transfer.
• Low-power consumption: Designed to minimize power consumption, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - Versatile bidirectional buffering for 12-bit bus systems. - High-speed operation ensures efficient data transfer. - Low-power consumption extends battery life in portable devices.

Disadvantages: - Limited to 12-bit bus systems, may not be suitable for larger data buses. - Requires careful consideration of voltage levels to ensure proper signal integrity.

Working Principles

The 74AC11245NSR functions as a bidirectional buffer and driver for 12-bit bus systems. It allows data transmission in both directions, ensuring efficient communication between multiple devices. The IC operates by receiving input signals from one side and driving the corresponding output signals on the other side. It maintains signal integrity by providing non-inverting amplification, preserving the logic polarity of the input signals.

Detailed Application Field Plans

The 74AC11245NSR is commonly used in various applications, including:

1. Microprocessor-based systems: It facilitates communication between microprocessors and peripheral devices, such as memory modules and input/output interfaces.
2. Data acquisition systems: The IC enables reliable data transfer between sensors, analog-to-digital converters, and digital processing units.
3. Communication equipment: It plays a crucial role in buffering and driving signals in networking devices, such as routers, switches, and modems.
4. Industrial automation: The IC is utilized in control systems,