SN74AUCH245RGYR

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-speed, low-power, bidirectional voltage-level translator
• Package: VQFN-20
• Essence: Translates signals between different voltage levels in digital systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input Voltage Range (VREF): 0V to VCCA
• Output Voltage Range (VREF): 0V to VCCB
• High-Level Input Voltage (VIH): 0.7 x VCCA
• Low-Level Input Voltage (VIL): 0.3 x VCCA
• High-Level Output Voltage (VOH): 0.9 x VCCB
• Low-Level Output Voltage (VOL): 0.1 x VCCB
• Maximum Operating Frequency: 500 MHz

Pin Configuration

The SN74AUCH245RGYR has a total of 20 pins. The pin configuration is as follows:

1. OE#
2. A1
3. B1
4. A2
5. B2
6. A3
7. B3
8. GND
9. B4
10. A4
11. B5
12. A5
13. B6
14. A6
15. B7
16. A7
17. VCCA
18. B8
19. A8
20. VCCB

Functional Features

• Bidirectional voltage-level translation between two independent power supply rails
• Supports mixed-mode signal operation on each port
• Provides voltage translation with no direction control required
• Allows voltage-level translation between 1.65V and 3.6V
• Supports up to 500 MHz frequency operation

Advantages and Disadvantages

Advantages: - High-speed operation - Low-power consumption - Bidirectional voltage-level translation - Wide supply voltage range

Disadvantages: - Limited number of channels (8-bit)

Working Principles

The SN74AUCH245RGYR is a bidirectional voltage-level translator that allows seamless communication between digital systems operating at different voltage levels. It uses a combination of level-shifting circuitry and bi-directional buffers to translate signals between two independent power supply rails.

The device operates by monitoring the input voltage levels on one side (VCCA) and translating them to the corresponding output voltage levels on the other side (VCCB). The translation is done automatically without the need for any direction control signals.

Detailed Application Field Plans

The SN74AUCH245RGYR is commonly used in various applications where voltage-level translation is required. Some of the typical application fields include:

1. Mixed-voltage systems: It enables communication between microcontrollers, sensors, and other digital devices operating at different voltage levels.
2. Battery-powered devices: It allows efficient power management by enabling communication between low-voltage battery-powered components and higher voltage peripherals.
3. Industrial automation: It facilitates communication between different subsystems and modules with varying voltage requirements.
4. Communication interfaces: It is used in UART, SPI, I2C, and other serial communication interfaces to ensure compatibility between devices operating at different voltage levels.

Detailed and Complete Alternative Models

1. SN74LVC1T45DBVR: Single-Bit Dual-Supply Bus Transceiver
2. TXS0102DCTR: Dual-Bit Bidirectional Voltage-Level Translator
3. PCA9306DCUR: Dual-Bit I2C and SMBus Voltage-Level Translator
4. SN74LVC8T245PW: 8-Bit Dual-Supply Bus Transceiver

These alternative models provide similar functionality and can be used as substitutes for the SN74AUCH245RGYR in various applications.

In conclusion, the SN74AUCH245RGYR is a high-speed, low-power bidirectional voltage-level translator integrated circuit. It allows seamless communication between digital systems operating at different voltage levels. With its wide supply voltage range and automatic direction control, it finds applications in mixed-voltage systems, battery-powered devices, industrial automation, and communication interfaces. Alternative models are available to suit specific requirements.