Encyclopedia Entry: 74FCT16245CTPAG

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Bus Transceiver
• Characteristics: High-speed, bidirectional, 16-bit transceiver
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Facilitates bidirectional data transfer between two buses with different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Logic Family: FCT
• Number of Bits: 16
• Input Voltage: 2.0V to 5.5V
• Output Voltage: 2.0V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 3.8ns (typical)
• Output Drive Strength: ±24mA
• ESD Protection: >2000V

Detailed Pin Configuration

The 74FCT16245CTPAG has a total of 48 pins, which are divided into four groups:

1. Group A (pins 1-12): Data Bus A (D0-D7) and Control Inputs (DIR, OE)
2. Group B (pins 13-24): Data Bus B (D0-D7) and Control Inputs (DIR, OE)
3. Group C (pins 25-36): Direction Control (DIR), Output Enable (OE), and Power/Ground Pins
4. Group D (pins 37-48): Data Bus A (D8-D15) and Data Bus B (D8-D15)

Functional Features

• Bidirectional data transfer between two buses with different voltage levels
• Non-inverting outputs for both data buses
• Separate control inputs for direction and output enable
• High-speed operation suitable for bus systems
• 3-state outputs for bus sharing

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Bidirectional functionality simplifies bus communication - Non-inverting outputs ensure data integrity - 3-state outputs enable bus sharing

Disadvantages: - Limited to 16-bit data bus width - Requires careful consideration of voltage compatibility between buses

Working Principles

The 74FCT16245CTPAG is a bidirectional bus transceiver that facilitates data transfer between two buses with different voltage levels. It operates by controlling the direction of data flow using the DIR (Direction Control) input and enabling/disabling the outputs using the OE (Output Enable) input.

When DIR is set to logic high, data flows from Bus A to Bus B. Conversely, when DIR is set to logic low, data flows from Bus B to Bus A. The OE input controls the output enable/disable function, allowing the transceiver to be effectively disconnected from the buses when not in use.

Detailed Application Field Plans

The 74FCT16245CTPAG is commonly used in various applications where bidirectional data transfer between buses with different voltage levels is required. Some specific application fields include:

1. Microprocessor Systems: Facilitating communication between microprocessors and peripheral devices operating at different voltage levels.
2. Networking Equipment: Enabling data exchange between network interfaces with varying voltage requirements.
3. Industrial Automation: Supporting data transmission between control systems and sensors/actuators operating at different voltage levels.
4. Automotive Electronics: Facilitating communication between different subsystems within a vehicle, such as engine control units and infotainment systems.

Detailed and Complete Alternative Models

1. SN74LV245A: Low-voltage octal bus transceiver with similar functionality but lower power consumption.
2. MC74ACT245: Octal bus transceiver with TTL-compatible inputs and outputs.
3. CD74HCT245: Octal bus transceiver with Schmitt-trigger inputs for improved noise immunity.

(Note: This list is not exhaustive and there are several other alternative models available in the market.)

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