CY74FCT257ATD

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital multiplexer
• Characteristics: High-speed, low-power consumption
• Package: 16-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Multiplexing data inputs to a single output
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: 4.5V to 5.5V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 3.5ns (typical)
• Input Capacitance: 4pF (typical)
• Output Current: ±24mA

Pin Configuration

The CY74FCT257ATD has a total of 16 pins, which are assigned as follows:

1. A0 - Data Input A
2. A1 - Data Input B
3. A2 - Data Input C
4. A3 - Data Input D
5. G - Enable Input
6. Y - Multiplexed Output
7. B - Data Input E
8. C - Data Input F
9. D - Data Input G
10. VCC - Positive Power Supply
11. Y - Multiplexed Output
12. GND - Ground
13. A - Data Input H
14. B - Data Input I
15. C - Data Input J
16. D - Data Input K

Functional Features

The CY74FCT257ATD is a quad 2-input multiplexer that selects one of the four data inputs (A, B, C, or D) based on the binary control inputs (A0, A1, A2, and A3). The selected data input is then routed to the output pin (Y) when the enable input (G) is active. This IC operates at high speeds while consuming low power, making it suitable for various digital multiplexing applications.

Advantages and Disadvantages

Advantages: - High-speed operation - Low power consumption - Wide operating temperature range - Compact TSSOP package - Easy integration into circuit designs

Disadvantages: - Limited number of inputs (4) - Requires external control signals for proper operation

Working Principles

The CY74FCT257ATD utilizes a combination of logic gates and multiplexers to achieve its functionality. The binary control inputs determine which data input is selected, and the enable input activates the multiplexer to route the selected data input to the output pin. The IC's internal circuitry ensures fast and accurate switching between inputs, allowing for efficient data multiplexing.

Detailed Application Field Plans

The CY74FCT257ATD can be used in various applications that require data multiplexing, such as:

1. Data communication systems
2. Digital signal processing
3. Memory address decoding
4. Data routing in microprocessors
5. Industrial automation control systems

Detailed and Complete Alternative Models

1. SN74FCT257T - Similar quad 2-input multiplexer with slightly different specifications.
2. CD74FCT257M - Quad 2-input multiplexer with similar characteristics but available in a different package.
3. MC74FCT257AN - Another alternative quad 2-input multiplexer with comparable features.

These alternative models offer similar functionality and can be considered as substitutes for the CY74FCT257ATD depending on specific requirements.

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