CY74FCT821ATSOC

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics:
  • High-speed operation
  • Low power consumption
  • Wide voltage range compatibility
• Package: Small Outline Integrated Circuit (SOIC)
• Essence: Logic level translation between different 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 Time: 3.5ns (typical)
• Maximum Quiescent Current: 10µA

Detailed Pin Configuration

The CY74FCT821ATSOC has a total of 20 pins arranged as follows:

1. OE (Output Enable) - Output control pin
2. A0 - Input A bit 0
3. A1 - Input A bit 1
4. A2 - Input A bit 2
5. A3 - Input A bit 3
6. A4 - Input A bit 4
7. A5 - Input A bit 5
8. GND - Ground
9. B5 - Input B bit 5
10. B4 - Input B bit 4
11. B3 - Input B bit 3
12. B2 - Input B bit 2
13. B1 - Input B bit 1
14. B0 - Input B bit 0
15. VCC - Power supply
16. Y0 - Output Y bit 0
17. Y1 - Output Y bit 1
18. Y2 - Output Y bit 2
19. Y3 - Output Y bit 3
20. Y4 - Output Y bit 4

Functional Features

• Logic level translation between two voltage domains
• Bidirectional data flow
• Non-inverting outputs
• High-speed operation suitable for use in high-frequency applications
• Low power consumption, making it ideal for battery-powered devices
• Wide voltage range compatibility allows interfacing between different logic families

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer - Low power consumption prolongs battery life - Wide voltage range compatibility provides flexibility in system design - Small package size saves board space

Disadvantages: - Limited number of input/output channels - Not suitable for applications requiring level shifting beyond the specified voltage range

Working Principles

The CY74FCT821ATSOC is a logic level translator that facilitates communication between integrated circuits operating at different voltage levels. It utilizes a combination of MOSFETs and CMOS technology to achieve bidirectional data flow with minimal delay.

When the OE pin is enabled, the inputs on side A (A0-A5) are translated to the corresponding outputs on side B (Y0-Y4). Similarly, when the OE pin is disabled, the inputs on side B (B0-B5) are translated to the corresponding outputs on side A.

The device operates by detecting the voltage levels on the input pins and translating them to the appropriate voltage levels on the output pins, ensuring seamless communication between different logic families.

Detailed Application Field Plans

The CY74FCT821ATSOC is commonly used in various applications where logic level translation is required. Some of the typical application fields include:

1. Microcontroller Interfacing: The IC enables communication between microcontrollers operating at different voltage levels, allowing them to exchange data seamlessly.

2. Sensor Interfaces: Many sensors operate at different voltage levels, and the CY74FCT821ATSOC can be used to interface these sensors with microcontrollers or other digital devices.

3. Communication Systems: The IC is suitable for level shifting in communication systems, such as UART, SPI, or I2C interfaces, where different voltage domains need to be connected.

4. Battery-Powered Devices: Due to its low power consumption, the CY74FCT821ATSOC is well-suited for use in battery-powered devices, such as portable electronics or IoT devices.

Detailed and Complete Alternative Models

1. SN74LVC1T45DBVR: Single-Bit Dual-Supply Bus Transceiver
2. TXB0108PWR: 8-Bit Bidirectional Voltage-Level Translator
3. PCA9306DCUR: Dual Bidirectional I2C-Bus and SMBus Voltage-Level Translator

These alternative models offer similar functionality and can be considered as alternatives to the CY74FCT821ATSOC based on specific application requirements.

In conclusion, the CY74FCT821ATSOC is a high-speed logic level translator IC that enables seamless communication between different voltage domains.