CD74FCT245M96

Overview

• Category: Integrated Circuit
• Use: Level Shifter/Transceiver
• Characteristics: High-speed, Bi-directional, 8-bit, Non-inverting
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Transfers data between different voltage levels in digital systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Input Current: ±10mA
• Maximum Output Current: ±24mA
• Propagation Delay Time: 6ns (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The CD74FCT245M96 has a total of 20 pins. The pin configuration is as follows:

1. OE (Output Enable) - Active Low
2. DIR (Direction Control)
3. A1 (Input/Output)
4. B1 (Input/Output)
5. A2 (Input/Output)
6. B2 (Input/Output)
7. A3 (Input/Output)
8. B3 (Input/Output)
9. A4 (Input/Output)
10. B4 (Input/Output)
11. GND (Ground)
12. B5 (Input/Output)
13. A5 (Input/Output)
14. B6 (Input/Output)
15. A6 (Input/Output)
16. B7 (Input/Output)
17. A7 (Input/Output)
18. B8 (Input/Output)
19. A8 (Input/Output)
20. VCC (Supply Voltage)

Functional Features

• Bi-directional data transfer between two buses with different voltage levels
• Non-inverting logic translation
• High-speed operation
• Output enable control for disabling the outputs
• Direction control for selecting the data flow direction

Advantages and Disadvantages

Advantages: - Allows interfacing between systems operating at different voltage levels - Non-inverting logic translation preserves signal integrity - High-speed operation enables efficient data transfer

Disadvantages: - Limited to 8-bit data width - Requires external control signals for direction and output enable

Working Principles

The CD74FCT245M96 is a level shifter/transceiver integrated circuit that facilitates the bidirectional transfer of data between two buses operating at different voltage levels. It operates by translating the logic levels of the input signals to the corresponding logic levels of the output signals.

The direction control pin (DIR) determines the data flow direction. When DIR is set to logic low, data is transferred from bus A to bus B. Conversely, when DIR is set to logic high, data is transferred from bus B to bus A.

The output enable pin (OE) controls the output buffers. When OE is set to logic low, the outputs are enabled and actively drive the bus lines. When OE is set to logic high, the outputs are disabled, effectively isolating the bus lines.

Detailed Application Field Plans

The CD74FCT245M96 is commonly used in various digital systems where data communication between different voltage domains is required. Some application fields include:

1. Microcontroller interfacing with peripheral devices operating at different voltage levels.
2. Communication interfaces between different integrated circuits or modules.
3. Data transfer between FPGA (Field-Programmable Gate Array) and external devices.
4. Level shifting in mixed-voltage systems, such as battery-powered devices.

Detailed and Complete Alternative Models

1. SN74LV245A: Low-voltage, 8-bit transceiver with 3-state outputs.
2. CD74HC245: High-speed CMOS logic level shifter/transceiver with 3-state outputs.
3. SN74LVC245A: Low-voltage CMOS transceiver with 3-state outputs and voltage translation.

These alternative models offer similar functionality to the CD74FCT245M96 and can be used as replacements depending on specific requirements and constraints.

In conclusion, the CD74FCT245M96 is a high-speed, bi-directional level shifter/transceiver integrated circuit. It enables data transfer between different voltage domains in digital systems, preserving signal integrity and ensuring efficient communication. With its compact SOIC package and various alternative models available, it finds applications in a wide range of fields requiring voltage level translation.