SN74AUC245RGYR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-speed, low-power, bidirectional voltage level translation
• Package: 20-pin VQFN package
• Essence: Facilitates communication between devices operating at different voltage levels
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range (VREF): -0.5V to 4.6V
• Output Voltage Range (VREF): -0.5V to 4.6V
• High-Level Input Voltage (VIH): 0.7 x VREF to VREF + 0.5V
• Low-Level Input Voltage (VIL): -0.5V to 0.3 x VREF
• High-Level Output Voltage (VOH): 0.7 x VREF to VREF + 0.5V
• Low-Level Output Voltage (VOL): -0.5V to 0.3 x VREF
• Propagation Delay (tpd): 2.8ns (max) at 3.3V supply, 25°C
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74AUC245RGYR has a total of 20 pins, numbered as follows:

1. OE (Output Enable) 1
2. A1 (Data Input/Output) 1
3. A2 (Data Input/Output) 1
4. A3 (Data Input/Output) 1
5. A4 (Data Input/Output) 1
6. A5 (Data Input/Output) 1
7. GND (Ground)
8. B5 (Data Input/Output) 2
9. B4 (Data Input/Output) 2
10. B3 (Data Input/Output) 2
11. B2 (Data Input/Output) 2
12. B1 (Data Input/Output) 2
13. VREF (Voltage Reference)
14. DIR (Direction Control)
15. OE (Output Enable) 2
16. B1 (Data Input/Output) 2
17. B2 (Data Input/Output) 2
18. B3 (Data Input/Output) 2
19. B4 (Data Input/Output) 2
20. B5 (Data Input/Output) 2

Functional Features

• Bidirectional voltage level translation between two independent buses
• Supports mixed-mode signal operation (5V input and output with 3.3V supply)
• Provides voltage translation for both push-pull and open-drain applications
• Low power consumption, making it suitable for battery-powered devices
• High-speed operation allows for efficient data transfer

Advantages and Disadvantages

Advantages: - Enables communication between devices operating at different voltage levels - Supports bidirectional data transmission - Low power consumption - High-speed operation

Disadvantages: - Limited to a maximum of 20 pins - Not suitable for applications requiring higher voltage translation ranges

Working Principles

The SN74AUC245RGYR is designed to facilitate communication between devices that operate at different voltage levels. It acts as a bidirectional level shifter and bus transceiver, allowing data to be transmitted between two independent buses. The device uses a combination of voltage level translation circuits and direction control to ensure proper signal transfer.

Detailed Application Field Plans

The SN74AUC245RGYR is commonly used in various applications, including:

1. Microcontroller interfacing with different voltage peripherals
2. Communication between devices operating at different voltage levels (e.g., 3.3V and 5V)
3. Logic level conversion in mixed-mode signal systems
4. Industrial automation and control systems
5. Consumer electronics, such as smartphones and tablets

Detailed and Complete Alternative Models

1. SN74LVC245ARGYR
2. SN74HCT245N
3. SN74LVCH245ADGVR
4. SN74CBT3257DR
5. SN74AVC4T245PW

These alternative models offer similar functionality and can be considered as alternatives to the SN74AUC245RGYR based on specific application requirements.

In conclusion, the SN74AUC245RGYR is a high-speed, low-power integrated circuit that serves as a level shifter and bus transceiver. It enables communication