CY74FCT543CTQCTE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-speed, low-power consumption
• Package: TQFP (Thin Quad Flat Package)
• Essence: Logic level shifting between two voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.0V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 3.5ns (typical)
• Output Drive Capability: ±24mA

Detailed Pin Configuration

The CY74FCT543CTQCTE4 IC has a total of 20 pins. The pin configuration is as follows:

1. OE (Output Enable) A
2. A0 (Data Input/Output) A
3. A1 (Data Input/Output) A
4. A2 (Data Input/Output) A
5. A3 (Data Input/Output) A
6. A4 (Data Input/Output) A
7. GND (Ground)
8. B4 (Data Input/Output) B
9. B3 (Data Input/Output) B
10. B2 (Data Input/Output) B
11. B1 (Data Input/Output) B
12. B0 (Data Input/Output) B
13. OE (Output Enable) B
14. VCC (Supply Voltage)
15. DIR (Direction Control)
16. LE (Latch Enable)
17. Q0 (Data Output) A
18. Q1 (Data Output) A
19. Q2 (Data Output) A
20. Q3 (Data Output) A

Functional Features

• Logic level shifting between two voltage domains
• Bidirectional data transfer capability
• Output enable and direction control for flexible operation
• Latch enable for synchronous data transfer

Advantages and Disadvantages

Advantages: - High-speed operation - Low-power consumption - Bidirectional data transfer - Flexible control options

Disadvantages: - Limited output drive capability - Restricted operating temperature range

Working Principles

The CY74FCT543CTQCTE4 is designed to shift logic levels between two voltage domains. It allows bidirectional data transfer between the A and B ports while maintaining compatibility with different voltage levels. The direction of data flow can be controlled using the DIR pin, and the data can be latched using the LE pin for synchronous transfer. The OE pins enable or disable the outputs, providing additional flexibility in controlling the IC's operation.

Detailed Application Field Plans

The CY74FCT543CTQCTE4 is commonly used in various applications that require logic level shifting, such as:

1. Communication systems: Used to interface between different voltage domains in communication protocols like UART, SPI, and I2C.
2. Microcontroller interfacing: Enables communication between microcontrollers operating at different voltage levels.
3. Sensor networks: Facilitates data exchange between sensors and microcontrollers with varying voltage requirements.
4. Industrial automation: Allows integration of devices with different logic levels in industrial control systems.

Detailed and Complete Alternative Models

1. SN74LVC1T45: Single-bit dual-supply bus transceiver with configurable voltage translation.
2. TXB0108: Eight-channel bi-directional voltage-level translator with automatic direction sensing.
3. PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator.

These alternative models offer similar functionality and can be considered as alternatives to the CY74FCT543CTQCTE4 for logic level shifting applications.

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