SN74AHCT245PWG4

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter/Transceiver
• Characteristics: High-speed, CMOS technology
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Bi-directional level shifter/transceiver
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Logic Family: AHCT
• Number of Channels: 8
• Input/Output Type: CMOS/TTL compatible
• Output Drive Capability: ±24mA
• Propagation Delay: 6ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74AHCT245PWG4 has a total of 20 pins. The pin configuration is as follows:

1. DIR (Direction Control)
2. OE (Output Enable)
3. A1 (Data Input/Output)
4. B1 (Data Input/Output)
5. A2 (Data Input/Output)
6. B2 (Data Input/Output)
7. A3 (Data Input/Output)
8. B3 (Data Input/Output)
9. A4 (Data Input/Output)
10. B4 (Data Input/Output)
11. GND (Ground)
12. B5 (Data Input/Output)
13. A5 (Data Input/Output)
14. B6 (Data Input/Output)
15. A6 (Data Input/Output)
16. B7 (Data Input/Output)
17. A7 (Data Input/Output)
18. B8 (Data Input/Output)
19. A8 (Data Input/Output)
20. VCC (Supply Voltage)

Functional Features

• Bi-directional level shifting between two voltage domains
• High-speed data transmission
• CMOS/TTL compatible inputs and outputs
• Output drive capability for driving capacitive loads
• Direction control for controlling data flow
• Output enable for enabling/disabling the outputs

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - CMOS technology provides low power consumption - Bi-directional functionality simplifies circuit design - Wide supply voltage range enhances versatility

Disadvantages: - Limited number of channels (8) - Propagation delay may affect timing-sensitive applications - Sensitive to electrostatic discharge (ESD) due to CMOS technology

Working Principles

The SN74AHCT245PWG4 is a bi-directional level shifter/transceiver that allows for seamless communication between two voltage domains. It utilizes CMOS technology, which ensures high-speed operation and low power consumption. The direction control pin determines the data flow direction, while the output enable pin enables or disables the outputs. The device is capable of driving capacitive loads and is compatible with both CMOS and TTL logic levels.

Detailed Application Field Plans

The SN74AHCT245PWG4 finds applications in various fields, including:

1. Communication Systems: Used for level shifting between different voltage domains in communication interfaces such as UART, SPI, and I2C.
2. Industrial Automation: Enables bidirectional data transfer between different voltage levels in industrial control systems.
3. Automotive Electronics: Facilitates communication between different voltage domains in automotive applications like infotainment systems and body control modules.
4. Consumer Electronics: Allows for level shifting in devices such as smartphones, tablets, and gaming consoles.
5. Embedded Systems: Used for interfacing microcontrollers and other digital components operating at different voltage levels.

Detailed and Complete Alternative Models

1. SN74LVC245APW: Bi-directional level shifter/transceiver with 3-state outputs.
2. SN74LVCH245APW: Bi-directional level shifter/transceiver with 3-state outputs and lower voltage range.
3. SN74AHC245PW: Bi-directional level shifter/transceiver with higher drive capability.

These alternative models offer similar functionality to the SN74AHCT245PWG4 but may have different characteristics, package options, or voltage ranges.

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