Encyclopedia Entry: 74FCT164245TPAG

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Data Bus Transceiver
• Characteristics: High-speed, bidirectional, 16-bit transceiver
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Facilitates the bidirectional transfer of data between two buses
• Packaging/Quantity: Available in reels, typically containing 2500 units

Specifications

• Technology: CMOS (Complementary Metal-Oxide-Semiconductor)
• Voltage Supply Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Output Drive Capability: ±24mA
• Propagation Delay: 3.8ns (max)
• Output Transition Time: 2.5ns (max)
• Input Capacitance: 4pF (typ)
• Output Capacitance: 6pF (typ)

Detailed Pin Configuration

The 74FCT164245TPAG has a total of 48 pins, which are divided into four groups: 1. Group A (pins 1-12): Contains the 16 data input/output pins (D1-D16) and their corresponding output enable pins (OE1-OE16). 2. Group B (pins 13-24): Consists of the 16 bus direction control pins (DIR1-DIR16). 3. Group C (pins 25-36): Comprises the VCC (power supply), GND (ground), and other power-related pins. 4. Group D (pins 37-48): Includes the 16 bus voltage level translation pins (VT1-VT16).

Functional Features

• Bidirectional Data Transfer: Enables data transmission in both directions between two buses.
• Voltage Level Translation: Facilitates seamless communication between buses operating at different voltage levels.
• Output Enable Control: Allows individual control of each data output, enhancing flexibility in system design.
• High-Speed Operation: Provides fast data transfer with minimal propagation delay and output transition time.

Advantages

• Versatility: Supports bidirectional data transfer and voltage level translation, making it suitable for various applications.
• Compact Package: The TSSOP package offers a small footprint, ideal for space-constrained designs.
• Robust Performance: CMOS technology ensures reliable operation across a wide temperature range.
• Low Power Consumption: Consumes minimal power, contributing to energy-efficient systems.

Disadvantages

• Limited Voltage Range: Operates within a specific voltage supply range (4.5V to 5.5V), which may not be compatible with all systems.
• Sensitivity to Noise: As with any high-speed IC, the 74FCT164245TPAG may be susceptible to noise interference, requiring proper signal conditioning.

Working Principles

The 74FCT164245TPAG functions as a bidirectional transceiver by utilizing a combination of input/output buffers, voltage level translators, and control logic. It allows data to flow bidirectionally between two buses while ensuring proper voltage level translation. The direction of data transfer is controlled by the bus direction control pins (DIR1-DIR16), while the output enable pins (OE1-OE16) provide individual control over the data outputs.

Detailed Application Field Plans

The 74FCT164245TPAG finds application in various fields, including: 1. Data Communication Systems: Facilitating data transfer between different modules or subsystems. 2. Microprocessor Interfacing: Enabling communication between microprocessors and peripheral devices. 3. Memory Systems: Supporting data transfer between memory modules and memory controllers. 4. Industrial Automation: Providing bidirectional data exchange in control systems and PLCs. 5. Automotive Electronics: Enabling communication between different automotive modules and ECUs.

Detailed and Complete Alternative Models

1. SN74LVTH164245DGGR: Similar bidirectional transceiver with 3-state outputs, offered in a TSSOP package.
2. MC74VHC245DTR2G: Voltage level translating transceiver with 8-bit bidirectional data transfer, available in a TSSOP package.
3. CD74HCT245M96: Octal bus transceiver with 3-state outputs, provided in a SOIC package.

(Note: The above alternative models are just a few examples; there are several other alternatives available in the market.)

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