CY74FCT543TQCT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: High-speed, low-power octal transparent latch with 3-state outputs
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Latch with output enable functionality
• Packaging/Quantity: Tape and Reel, 2500 units per reel

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: 2.5ns (typical)
• Output Current: ±24mA
• Input Capacitance: 4pF (typical)

Detailed Pin Configuration

The CY74FCT543TQCT has a total of 20 pins, which are assigned as follows:

1. OE (Output Enable) - Active Low
2. D0 (Data Input 0)
3. D1 (Data Input 1)
4. D2 (Data Input 2)
5. D3 (Data Input 3)
6. D4 (Data Input 4)
7. D5 (Data Input 5)
8. D6 (Data Input 6)
9. D7 (Data Input 7)
10. GND (Ground)
11. Q7 (Output 7)
12. Q6 (Output 6)
13. Q5 (Output 5)
14. Q4 (Output 4)
15. Q3 (Output 3)
16. Q2 (Output 2)
17. Q1 (Output 1)
18. Q0 (Output 0)
19. VCC (Supply Voltage)
20. OE (Output Enable) - Active High

Functional Features

• Octal transparent latch with 3-state outputs
• Output enable functionality for bus-oriented applications
• Non-inverting outputs
• High-speed operation
• Low power consumption
• ESD protection on all inputs and outputs
• Compatible with TTL levels

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Low power consumption reduces energy usage - ESD protection ensures reliability in harsh environments - Compatibility with TTL levels simplifies integration into existing systems

Disadvantages: - Limited output current may restrict use in certain applications - Narrow operating temperature range (-40°C to +85°C)

Working Principles

The CY74FCT543TQCT is an octal transparent latch with 3-state outputs. It operates by latching the input data when the latch enable (LE) signal is high. The output enable (OE) signal controls the state of the outputs, allowing them to be either active or in a high-impedance state.

When the OE signal is low, the latch is enabled, and the input data is transferred to the outputs. Conversely, when the OE signal is high, the outputs are in a high-impedance state, effectively disconnecting them from the rest of the circuit.

Detailed Application Field Plans

The CY74FCT543TQCT is commonly used in various digital logic applications, including:

1. Data buses in microprocessors and microcontrollers
2. Memory address decoding circuits
3. Input/output (I/O) interfaces
4. Communication systems
5. Industrial control systems

Its high-speed operation, low power consumption, and compatibility with TTL levels make it suitable for these applications, where efficient data transfer and reliable performance are crucial.

Detailed and Complete Alternative Models

1. SN74FCT543TQCT
2. MC74FCT543TQCT
3. CD74FCT543TQCT
4. 74ACT543TQCT
5. 74HC543TQCT

These alternative models offer similar functionality and characteristics to the CY74FCT543TQCT, providing users with options based on their specific requirements.

Word count: 459 words